.envrc

@@ -1,2 +0,0 @@
-use nix
-

.gitignore

@@ -15,5 +15,3 @@
 __pycache__
 /datman-helper-postgres/datman_helper_postgres.egg-info
 /datman-helper-mysql/datman_helper_mysql.egg-info
-/result
-

.woodpecker/build.yml

@@ -5,19 +5,27 @@ platform: linux/amd64
 
 pipeline:
   unitTests:
-    image: "rust:1.65.0"
-    pull: true
+    image: "docker.bics.ga/rei_ci/rust-sccache:latest-amd64"
     commands:
       - DEBIAN_FRONTEND=noninteractive apt-get -qq update > /dev/null
       - DEBIAN_FRONTEND=noninteractive apt-get -yqq install pkg-config libssl-dev build-essential libsqlite3-dev > /dev/null
       - cargo build --all
       - cargo test --all
+      - sccache --show-stats
+    environment:
+      RUSTC_WRAPPER: /usr/local/bin/sccache
+      SCCACHE_S3_USE_SSL: "true"
+      SCCACHE_ENDPOINT: "richie.m4.tanukitsu.net:443"
+    secrets:
+      - sccache_bucket
+      - aws_access_key_id
+      - aws_secret_access_key
     when:
       event: [push, pull_request]
 
 
   testSuite:
-    image: "rust:1.65.0"
+    image: "docker.bics.ga/rei_ci/rust-sccache:latest-amd64"
     commands:
       - DEBIAN_FRONTEND=noninteractive apt-get -qq update > /dev/null
       - DEBIAN_FRONTEND=noninteractive apt-get -yqq -o=Dpkg::Use-Pty=0 install pkg-config libssl-dev build-essential libsqlite3-dev python3.9 python3.9-venv postgresql postgresql-client mariadb-server mariadb-client zstd lz4 > /dev/null
@@ -30,14 +38,22 @@ pipeline:
       - cargo install -q --path yama
       - cargo install -q --path datman
       - python3.9 -m venv testsuite/.venv
-      - ./testsuite/.venv/bin/pip install ./testsuite ./datman-helper-postgres ./datman-helper-mysql
+      - ./testsuite/.venv/bin/pip install -e testsuite -e datman-helper-postgres -e datman-helper-mysql
       - cd testsuite && . .venv/bin/activate && TEST_POSTGRES=$(hostname),testsuitedb,root TEST_MYSQL=$(hostname),testsuitemydb,root green
+      - sccache --show-stats
+    environment:
+      RUSTC_WRAPPER: /usr/local/bin/sccache
+      SCCACHE_S3_USE_SSL: "true"
+      SCCACHE_ENDPOINT: "richie.m4.tanukitsu.net:443"
+    secrets:
+      - sccache_bucket
+      - aws_access_key_id
+      - aws_secret_access_key
     when:
       event: [push, pull_request]
 
   deployManual:
-    image: "docker.emunest.net/rei_ci/mdbook:latest-amd64"
-    pull: true
+    image: "docker.bics.ga/rei_ci/mdbook:latest-amd64"
     when:
       branch:
         - develop

.woodpecker/release.yml

@@ -4,8 +4,7 @@ platform: linux/${ARCH}
 
 matrix:
   ARCH:
-    # I don't have an arm64 runner at the moment.
-    #- arm64
+    - arm64
     - amd64
 
 .a1: &when
@@ -16,10 +15,7 @@ pipeline:
   buildRelease:
     when: *when
 
-    # Disabled for now because I'm trying to get infinite build times to stop :-(.
-    # Suspect a kernel bug but any workaround will do for now.
-    #image: "docker.bics.ga/rei_ci/rust-sccache:latest-${ARCH}"
-    image: "rust:1.61"
+    image: "docker.bics.ga/rei_ci/rust-sccache:latest-${ARCH}"
     commands:
       - apt-get -qq update && apt-get -yqq install pkg-config libssl-dev build-essential libolm-dev cmake
       - cargo build --release

Cargo.toml

@@ -1,11 +1,6 @@
 [workspace]
 members = [
   "yama",
-  "datman",
+  "datman"
 ]
 
-[profile.release]
-# Include FULL debug information in the release binaries
-debug = 2
-# When this feature stabilises, it will be possible to split the debug information into a file alongside the binary
-#split-debuginfo = "packed"

datman-helper-mysql/poetry.lock

@@ -1,8 +0,0 @@
-package = []
-
-[metadata]
-lock-version = "1.1"
-python-versions = "^3.8"
-content-hash = "fafb334cb038533f851c23d0b63254223abf72ce4f02987e7064b0c95566699a"
-
-[metadata.files]

datman-helper-mysql/pyproject.toml

@@ -1,19 +0,0 @@
-[tool.poetry]
-name = "datman-helper-mysql"
-version = "0.1.0"
-description = "MySQL integration for Datman"
-authors = ["Olivier 'reivilibre' <olivier@librepush.net>"]
-license = "GPL-3.0-or-later"
-
-[tool.poetry.dependencies]
-python = "^3.8"
-
-[tool.poetry.dev-dependencies]
-
-[tool.poetry.scripts]
-datman-helper-mysql-backup="datman_helper_mysql.backup:cli"
-datman-helper-mysql-restore="datman_helper_mysql.restore:cli"
-
-[build-system]
-requires = ["poetry-core>=1.0.0"]
-build-backend = "poetry.core.masonry.api"

datman-helper-mysql/setup.py

@@ -0,0 +1,119 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import io
+import os
+import sys
+from shutil import rmtree
+
+from setuptools import Command, find_packages, setup
+
+# Package meta-data.
+NAME = "datman_helper_mysql"
+DESCRIPTION = "MySQL integration for Datman"
+URL = "https://bics.ga/reivilibre/yama"
+EMAIL = "reivi@librepush.net"
+AUTHOR = "Olivier 'reivilibre'"
+REQUIRES_PYTHON = ">=3.7.0"
+VERSION = "0.1.0"
+
+# What packages are required for this module to be executed?
+REQUIRED = []
+
+
+# What packages are optional?
+EXTRAS = {}
+
+# The rest you shouldn't have to touch too much :)
+# ------------------------------------------------
+# Except, perhaps the License and Trove Classifiers!
+# If you do change the License, remember to change the Trove Classifier for that!
+
+here = os.path.abspath(os.path.dirname(__file__))
+
+# Import the README and use it as the long-description.
+# Note: this will only work if 'README.md' is present in your MANIFEST.in file!
+try:
+    with io.open(os.path.join(here, "README.md"), encoding="utf-8") as f:
+        long_description = "\n" + f.read()
+except FileNotFoundError:
+    long_description = DESCRIPTION
+
+# Load the package's __version__.py module as a dictionary.
+about = {}
+if not VERSION:
+    project_slug = NAME.lower().replace("-", "_").replace(" ", "_")
+    with open(os.path.join(here, project_slug, "__version__.py")) as f:
+        exec(f.read(), about)
+else:
+    about["__version__"] = VERSION
+
+
+class UploadCommand(Command):
+    """Support setup.py upload."""
+
+    description = "Build and publish the package."
+    user_options = []
+
+    @staticmethod
+    def status(s):
+        """Prints things in bold."""
+        print("\033[1m{0}\033[0m".format(s))
+
+    def initialize_options(self):
+        pass
+
+    def finalize_options(self):
+        pass
+
+    def run(self):
+        try:
+            self.status("Removing previous builds…")
+            rmtree(os.path.join(here, "dist"))
+        except OSError:
+            pass
+
+        self.status("Building Source and Wheel (universal) distribution…")
+        os.system("{0} setup.py sdist bdist_wheel --universal".format(sys.executable))
+
+        self.status("Uploading the package to PyPI via Twine…")
+        os.system("twine upload dist/*")
+
+        self.status("Pushing git tags…")
+        os.system("git tag v{0}".format(about["__version__"]))
+        os.system("git push --tags")
+
+        sys.exit()
+
+
+# Where the magic happens:
+setup(
+    name=NAME,
+    version=about["__version__"],
+    description=DESCRIPTION,
+    long_description=long_description,
+    long_description_content_type="text/markdown",
+    author=AUTHOR,
+    author_email=EMAIL,
+    python_requires=REQUIRES_PYTHON,
+    url=URL,
+    packages=find_packages(exclude=["tests", "*.tests", "*.tests.*", "tests.*"]),
+    # If your package is a single module, use this instead of 'packages':
+    # py_modules=['mypackage'],
+    entry_points={
+        "console_scripts": [
+            "datman-helper-mysql-backup=datman_helper_mysql.backup:cli",
+            "datman-helper-mysql-restore=datman_helper_mysql.restore:cli",
+        ],
+    },
+    install_requires=REQUIRED,
+    extras_require=EXTRAS,
+    include_package_data=True,
+    # TODO license='GPL3',
+    classifiers=[
+        # Trove classifiers
+        # Full list: https://pypi.python.org/pypi?%3Aaction=list_classifiers
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3",
+    ],
+)

datman-helper-postgres/datman_helper_postgres/backup.py

@@ -39,7 +39,10 @@ def cli():
     # The process (if any) that is our LZ4 decompressor.
     lz4_process = None
 
-    dump_command = ["pg_dump", database_to_use]
+    dump_command = [
+        "pg_dump",
+        database_to_use
+    ]
 
     if host_to_use is not None:
         if use_lz4:
@@ -60,19 +63,21 @@ def cli():
         # (rather than lz4 covering it).
         command = [
             "ssh",
-            f"{user_to_use}@{host_to_use}"
-            if user_to_use is not None
-            else f"{host_to_use}",
+            f"{user_to_use}@{host_to_use}" if user_to_use is not None else f"{host_to_use}",
             "bash",
             "-o",
             "pipefail",
             "-c",
-            shlex.quote(" ".join(dump_command)),
+            shlex.quote(" ".join(dump_command))
         ]
     elif user_to_use is not None:
         current_username = pwd.getpwuid(os.getuid()).pw_name
         if current_username != user_to_use:
-            command = ["sudo", "-u", user_to_use] + dump_command
+            command = [
+                "sudo",
+                "-u",
+                user_to_use
+            ] + dump_command
         else:
             command = dump_command
     else:

datman-helper-postgres/poetry.lock

@@ -1,8 +0,0 @@
-package = []
-
-[metadata]
-lock-version = "1.1"
-python-versions = "^3.8"
-content-hash = "fafb334cb038533f851c23d0b63254223abf72ce4f02987e7064b0c95566699a"
-
-[metadata.files]

datman-helper-postgres/pyproject.toml

@@ -1,19 +0,0 @@
-[tool.poetry]
-name = "datman-helper-postgres"
-version = "0.1.0"
-description = "Postgres integration for Datman"
-authors = ["Olivier 'reivilibre' <olivier@librepush.net>"]
-license = "GPL-3.0-or-later"
-
-[tool.poetry.dependencies]
-python = "^3.8"
-
-[tool.poetry.dev-dependencies]
-
-[tool.poetry.scripts]
-datman-helper-postgres-backup="datman_helper_postgres.backup:cli"
-datman-helper-postgres-restore="datman_helper_postgres.restore:cli"
-
-[build-system]
-requires = ["poetry-core>=1.0.0"]
-build-backend = "poetry.core.masonry.api"

datman-helper-postgres/setup.py

@@ -0,0 +1,119 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import io
+import os
+import sys
+from shutil import rmtree
+
+from setuptools import Command, find_packages, setup
+
+# Package meta-data.
+NAME = "datman_helper_postgres"
+DESCRIPTION = "Postgres integration for Datman"
+URL = "https://bics.ga/reivilibre/yama"
+EMAIL = "reivi@librepush.net"
+AUTHOR = "Olivier 'reivilibre'"
+REQUIRES_PYTHON = ">=3.7.0"
+VERSION = "0.1.0"
+
+# What packages are required for this module to be executed?
+REQUIRED = []
+
+
+# What packages are optional?
+EXTRAS = {}
+
+# The rest you shouldn't have to touch too much :)
+# ------------------------------------------------
+# Except, perhaps the License and Trove Classifiers!
+# If you do change the License, remember to change the Trove Classifier for that!
+
+here = os.path.abspath(os.path.dirname(__file__))
+
+# Import the README and use it as the long-description.
+# Note: this will only work if 'README.md' is present in your MANIFEST.in file!
+try:
+    with io.open(os.path.join(here, "README.md"), encoding="utf-8") as f:
+        long_description = "\n" + f.read()
+except FileNotFoundError:
+    long_description = DESCRIPTION
+
+# Load the package's __version__.py module as a dictionary.
+about = {}
+if not VERSION:
+    project_slug = NAME.lower().replace("-", "_").replace(" ", "_")
+    with open(os.path.join(here, project_slug, "__version__.py")) as f:
+        exec(f.read(), about)
+else:
+    about["__version__"] = VERSION
+
+
+class UploadCommand(Command):
+    """Support setup.py upload."""
+
+    description = "Build and publish the package."
+    user_options = []
+
+    @staticmethod
+    def status(s):
+        """Prints things in bold."""
+        print("\033[1m{0}\033[0m".format(s))
+
+    def initialize_options(self):
+        pass
+
+    def finalize_options(self):
+        pass
+
+    def run(self):
+        try:
+            self.status("Removing previous builds…")
+            rmtree(os.path.join(here, "dist"))
+        except OSError:
+            pass
+
+        self.status("Building Source and Wheel (universal) distribution…")
+        os.system("{0} setup.py sdist bdist_wheel --universal".format(sys.executable))
+
+        self.status("Uploading the package to PyPI via Twine…")
+        os.system("twine upload dist/*")
+
+        self.status("Pushing git tags…")
+        os.system("git tag v{0}".format(about["__version__"]))
+        os.system("git push --tags")
+
+        sys.exit()
+
+
+# Where the magic happens:
+setup(
+    name=NAME,
+    version=about["__version__"],
+    description=DESCRIPTION,
+    long_description=long_description,
+    long_description_content_type="text/markdown",
+    author=AUTHOR,
+    author_email=EMAIL,
+    python_requires=REQUIRES_PYTHON,
+    url=URL,
+    packages=find_packages(exclude=["tests", "*.tests", "*.tests.*", "tests.*"]),
+    # If your package is a single module, use this instead of 'packages':
+    # py_modules=['mypackage'],
+    entry_points={
+        "console_scripts": [
+            "datman-helper-postgres-backup=datman_helper_postgres.backup:cli",
+            "datman-helper-postgres-restore=datman_helper_postgres.restore:cli",
+        ],
+    },
+    install_requires=REQUIRED,
+    extras_require=EXTRAS,
+    include_package_data=True,
+    # TODO license='GPL3',
+    classifiers=[
+        # Trove classifiers
+        # Full list: https://pypi.python.org/pypi?%3Aaction=list_classifiers
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3",
+    ],
+)

datman/Cargo.toml

@@ -1,8 +1,8 @@
 [package]
 name = "datman"
-version = "0.6.0-alpha.5"
+version = "0.5.0-alpha.2"
 authors = ["Olivier 'reivilibre' <olivier@librepush.net>"]
-edition = "2021"
+edition = "2018"
 repository = "https://bics.ga/reivilibre/yama"
 license = "GPL-3.0-or-later"
 
@@ -11,7 +11,7 @@ description = "A chunked and deduplicated backup system using Yama"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-clap = { version = "3.1.18", features = ["derive"] }
+clap = "= 3.0.0-beta.5"
 crossbeam-channel = "0.5.1"
 anyhow = "1.0"
 thiserror = "1.0"
@@ -22,7 +22,7 @@ log = "0.4"
 env_logger = "0.7.1"
 indicatif = "0.14.0"
 arc-interner = "0.5.1"
-zstd = "0.11.2"  # 0.11.2+zstd.1.5.2
+zstd = "0.6.0"  # 0.6.0+zstd.1.4.8
 byteorder = "1"
 termion = "1.5.6"
 glob = "0.3.0"
@@ -30,9 +30,4 @@ humansize = "1.1.1"
 chrono = "0.4.19"
 itertools = "0.10.1"
 hostname = "0.3.1"
-yama = { path = "../yama", version = "0.6.0-alpha.5" }
-metrics = "0.17.1"
-bare-metrics-recorder = { version = "0.1.0" }
-comfy-table = "6.0.0-rc.1"
-libc = "0.2.126"
-io-streams = "0.11.0"
+yama = { path = "../yama", version = "0.5.0-alpha.1" }

datman/README.md

@@ -8,6 +8,5 @@ Features:
 * (optional) Compression using Zstd and a specifiable dictionary
 * (optional) Encryption
 * Ability to back up to remote machines over SSH
-* Labelling of files in a backup source; different destinations can choose to backup either all or a subset of the labels.
 
 See the documentation for more information.

datman/src/bin/datman.rs

@@ -15,31 +15,23 @@ You should have received a copy of the GNU General Public License
 along with Yama.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-use std::fs::File;
-use std::io::{BufReader, BufWriter, Write};
 use std::path::{Path, PathBuf};
-use std::process::{Command, Stdio};
 
 use clap::Parser;
 use env_logger::Env;
 
-use anyhow::{bail, Context};
-use bare_metrics_recorder::recording::BareMetricsRecorderCore;
+use anyhow::bail;
 use chrono::{DateTime, Local, NaiveDate, NaiveDateTime, TimeZone, Utc};
 use datman::commands::backup::{backup_all_sources_to_destination, backup_source_to_destination};
 use datman::commands::ilabel::interactive_labelling_session;
-use datman::commands::prune::{prune_with_retention_policy, RetentionPolicy};
-use datman::commands::{init_descriptor, pushpull};
+use datman::commands::init_descriptor;
 use datman::descriptor::{load_descriptor, SourceDescriptor};
 use datman::get_hostname;
 use datman::remote::backup_source_requester::backup_remote_source_to_destination;
 use datman::remote::backup_source_responder;
 use indicatif::{ProgressBar, ProgressDrawTarget, ProgressStyle};
-use itertools::Itertools;
 use log::info;
 use std::str::FromStr;
-use yama::commands::load_pile_descriptor;
-use yama::operations::legacy_pushpull::{open_pile_with_work_bypass, BypassLevel};
 
 pub const FAILURE_SYMBOL_OBNOXIOUS_FLASHING: &str = "\x1b[5m\x1b[31m⚠️ \x1b[25m\x1b[22m";
 pub const BOLD: &str = "\x1b[1m";
@@ -117,39 +109,8 @@ pub enum DatmanCommand {
         skip_metadata: bool,
     },
 
-    Report {
-        /// Name of the pile to report on.
-        pile_name: String,
-
-        /// Don't summarise months.
-        #[clap(long)]
-        individual: bool,
-    },
-
     #[clap(name = "_backup_source_responder")]
     InternalBackupSourceResponder,
-
-    /// Pulls all pointers from a remote pile to a local pile.
-    /// Does not yet support label filtering, but will do in the future.
-    Pull {
-        /// e.g. 'myserver:main'
-        remote_and_remote_pile: String,
-
-        pile_name: String,
-    },
-
-    /// Applies a retention policy by removing unnecessary backups.
-    /// Does not reclaim space by itself: use
-    ///   `yama check --apply-gc --shallow`
-    /// & `yama compact`
-    /// to do that.
-    Prune { pile_name: String },
-
-    #[clap(name = "_pull_responder_offerer")]
-    InternalPullResponderOfferer {
-        datman_path: PathBuf,
-        pile_name: String,
-    },
 }
 
 pub struct HumanDateTime(pub DateTime<Local>);
@@ -208,15 +169,6 @@ fn with_exitcode<R>(result: anyhow::Result<R>) {
 fn main() -> anyhow::Result<()> {
     env_logger::Builder::from_env(Env::default().default_filter_or("info")).init();
 
-    let now = Utc::now();
-
-    let (shard, _stopper) = BareMetricsRecorderCore::new(File::create(format!(
-        "/tmp/datman_{}.baremetrics",
-        now.format("%F_%H%M%S")
-    ))?)
-    .start("datman".to_string())?;
-    shard.install_as_metrics_recorder()?;
-
     let opts: DatmanCommand = DatmanCommand::parse();
 
     match opts {
@@ -227,10 +179,10 @@ fn main() -> anyhow::Result<()> {
             unimplemented!();
         }
         DatmanCommand::InteractiveLabelling { source_name } => {
-            interactive_labelling_session(Path::new("."), source_name)?;
+            interactive_labelling_session(Path::new("."), source_name).unwrap();
         }
         DatmanCommand::InteractiveBrowsing { source_name } => {
-            datman::commands::ibrowse::session(Path::new("."), source_name)?;
+            datman::commands::ibrowse::session(Path::new("."), source_name).unwrap();
         }
         DatmanCommand::BackupOne {
             source_name,
@@ -344,125 +296,6 @@ fn main() -> anyhow::Result<()> {
             info!("Datman responder at {:?}", std::env::current_exe()?);
             backup_source_responder::handler_stdio()?;
         }
-
-        DatmanCommand::Report {
-            pile_name,
-            individual,
-        } => {
-            let descriptor = load_descriptor(Path::new(".")).unwrap();
-            let destination = &descriptor.piles[&pile_name];
-            let report =
-                datman::commands::report::generate_report(destination, &descriptor, !individual)?;
-
-            datman::commands::report::print_filesystem_space(&destination.path)?;
-            datman::commands::report::print_report(&report)?;
-        }
-        DatmanCommand::Pull {
-            remote_and_remote_pile,
-            pile_name,
-        } => {
-            let (hostname, remote_datman_path, remote_pile_name) = remote_and_remote_pile
-                .split(':')
-                .collect_tuple()
-                .context("You must pull from a remote pile specified as remote:path:pile.")?;
-
-            let descriptor = load_descriptor(Path::new(".")).unwrap();
-            let source = &descriptor.piles[&pile_name];
-
-            let pile_desc = load_pile_descriptor(&source.path)?;
-            let (pile, bypass_raw_pile) = open_pile_with_work_bypass(
-                &source.path,
-                &pile_desc,
-                BypassLevel::CompressionBypass,
-            )?;
-
-            let pbar = ProgressBar::with_draw_target(0, ProgressDrawTarget::stdout_with_hz(10));
-            pbar.set_style(
-                ProgressStyle::default_bar().template(
-                    "[{elapsed_precise}]/[{eta}] {bar:40.cyan/blue} {pos:>7}/{len:7} {msg}",
-                ),
-            );
-            pbar.set_message("pulling");
-
-            let remote_host_descriptor = descriptor
-                .remote_hosts
-                .get(hostname)
-                .ok_or_else(|| anyhow::anyhow!("No remote host by that name: {:?}.", hostname))?;
-
-            let mut connection = Command::new("ssh")
-                .arg(&remote_host_descriptor.user_at_host)
-                .arg("--")
-                .arg(
-                    &remote_host_descriptor
-                        .path_to_datman
-                        .as_ref()
-                        .map(|x| x.as_str())
-                        .unwrap_or("datman"),
-                )
-                .arg("_pull_responder_offerer")
-                .arg(remote_datman_path)
-                .arg(remote_pile_name)
-                .stdin(Stdio::piped())
-                .stdout(Stdio::piped())
-                .stderr(Stdio::inherit())
-                .spawn()?;
-
-            let mut reader = BufReader::new(connection.stdout.take().unwrap());
-            let mut writer = BufWriter::new(connection.stdin.take().unwrap());
-
-            pushpull::accepting_side(
-                &pile,
-                &bypass_raw_pile,
-                &mut reader,
-                &mut writer,
-                Box::new(pbar),
-            )?;
-        }
-
-        DatmanCommand::Prune { pile_name } => {
-            let descriptor = load_descriptor(Path::new(".")).unwrap();
-            let retention_policy = descriptor
-                .retention
-                .context("No retention policy set in descriptor")?;
-            let dest_desc = &descriptor.piles[&pile_name];
-
-            let pile_desc = load_pile_descriptor(&dest_desc.path)?;
-
-            prune_with_retention_policy(
-                &dest_desc.path,
-                &pile_desc,
-                &RetentionPolicy::from_config(retention_policy),
-                true,
-            )?;
-        }
-
-        DatmanCommand::InternalPullResponderOfferer {
-            datman_path,
-            pile_name,
-        } => {
-            let descriptor = load_descriptor(&datman_path).unwrap();
-            let source = &descriptor.piles[&pile_name];
-
-            let pile_desc = load_pile_descriptor(&source.path)?;
-            let (pile, bypass_raw_pile) = open_pile_with_work_bypass(
-                &source.path,
-                &pile_desc,
-                BypassLevel::CompressionBypass,
-            )?;
-
-            let mut stdin = BufReader::new(io_streams::StreamReader::stdin()?);
-            let mut stdout = BufWriter::new(io_streams::StreamWriter::stdout()?);
-
-            pushpull::offering_side(
-                &pile,
-                &bypass_raw_pile,
-                &mut stdin,
-                &mut stdout,
-                Box::new(()),
-            )?;
-
-            stdout.flush()?;
-        }
     }
     Ok(())
 }

datman/src/commands.rs

@@ -20,15 +20,12 @@ use std::fs::File;
 use std::io::Write;
 use std::path::Path;
 
-use crate::descriptor::{Descriptor, RetentionPolicyConfig, SourceDescriptor};
+use crate::descriptor::{Descriptor, SourceDescriptor};
 
 pub mod backup;
 pub mod extract;
 pub mod ibrowse;
 pub mod ilabel;
-pub mod prune;
-pub mod pushpull;
-pub mod report;
 
 pub fn init_descriptor(path: &Path) -> anyhow::Result<()> {
     std::fs::create_dir_all(path)?;
@@ -52,12 +49,6 @@ pub fn init_descriptor(path: &Path) -> anyhow::Result<()> {
         sources: source,
         piles: Default::default(),
         remote_hosts: Default::default(),
-        retention: Some(RetentionPolicyConfig {
-            daily: 14,
-            weekly: 12,
-            monthly: 24,
-            yearly: 9001,
-        }),
     })?;
 
     datman_toml_file.write_all(&bytes)?;

datman/src/commands/backup.rs

@@ -17,13 +17,11 @@ along with Yama.  If not, see <https://www.gnu.org/licenses/>.
 
 use crate::descriptor::{Descriptor, DestPileDescriptor, SourceDescriptor, VirtualSourceKind};
 use crate::get_hostname;
-use crate::labelling::{
-    label_node, load_labelling_rules, str_to_label, Label, LabellingRules, State,
-};
+use crate::labelling::{label_node, load_labelling_rules, str_to_label, Label, State};
 use crate::tree::{scan, FileTree, FileTree1};
 use anyhow::{anyhow, bail};
 use arc_interner::ArcIntern;
-use chrono::{DateTime, NaiveDateTime, TimeZone, Utc};
+use chrono::{DateTime, Utc};
 use log::{info, warn};
 use std::collections::{HashMap, HashSet};
 use std::fmt::Debug;
@@ -51,13 +49,6 @@ pub fn get_pointer_name_at(source_name: &str, datetime: DateTime<Utc>) -> String
     )
 }
 
-pub fn split_pointer_name(pointer_name: &str) -> Option<(String, DateTime<Utc>)> {
-    let (source_name, date_time_str) = pointer_name.rsplit_once("+")?;
-    let date_time = NaiveDateTime::parse_from_str(date_time_str, POINTER_DATETIME_FORMAT).ok()?;
-    let date_time = Utc.from_utc_datetime(&date_time);
-    Some((source_name.to_owned(), date_time))
-}
-
 pub fn open_stdout_backup_process(
     extra_args: &HashMap<String, toml::Value>,
     program_name: &str,
@@ -78,8 +69,8 @@ pub fn open_stdout_backup_process(
 pub fn label_filter_and_convert(
     tree: FileTree1<()>,
     descriptor: &Descriptor,
+    desc_path: &Path,
     source_name: &str,
-    rules: &LabellingRules,
     dest: &DestPileDescriptor,
 ) -> anyhow::Result<Option<TreeNode>> {
     info!("Labelling.");
@@ -89,7 +80,8 @@ pub fn label_filter_and_convert(
         .iter()
         .map(|l| Label(ArcIntern::new(l.clone())))
         .collect();
-    label_node("".to_owned(), None, &mut tree, &labels, rules)?;
+    let rules = load_labelling_rules(desc_path, source_name)?;
+    label_node("".to_owned(), None, &mut tree, &labels, &rules)?;
 
     let included_labels: HashSet<Label> = dest.included_labels.iter().map(str_to_label).collect();
 
@@ -148,23 +140,17 @@ pub fn backup_source_to_destination<PT: ProgressTracker>(
         SourceDescriptor::DirectorySource {
             hostname: _,
             directory,
-            cross_filesystems,
         } => {
             info!("Looking to backup {} to {}", source_name, dest_name);
-            let rules = load_labelling_rules(desc_path, source_name)?;
-            let exclusions = rules.get_exclusions_set(directory);
-
             info!("Scanning.");
-            let tree = scan(directory, !*cross_filesystems, &exclusions)?
-                .ok_or_else(|| anyhow!("Source does not exist."))?;
+            let tree = scan(directory)?.ok_or_else(|| anyhow!("Source does not exist."))?;
 
             let absolute_source_path = desc_path.join(directory);
             let absolute_dest_path = desc_path.join(&dest.path);
             let pile_descriptor = load_pile_descriptor(&absolute_dest_path)?;
             let pile = open_pile(&absolute_dest_path, &pile_descriptor)?;
-
             let root = if let Some(root) =
-                label_filter_and_convert(tree, descriptor, source_name, &rules, dest)?
+                label_filter_and_convert(tree, descriptor, desc_path, source_name, dest)?
             {
                 root
             } else {
@@ -216,6 +202,7 @@ pub fn backup_source_to_destination<PT: ProgressTracker>(
                 parent,
                 num_workers,
                 progress_bar,
+                true,
             )?;
 
             info!("Stored!");

datman/src/commands/ibrowse.rs

@@ -15,7 +15,6 @@ You should have received a copy of the GNU General Public License
 along with Yama.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-use std::collections::BTreeSet;
 use std::path::Path;
 
 use anyhow::{anyhow, bail};
@@ -69,19 +68,15 @@ pub fn session(path: &Path, source_name: String) -> anyhow::Result<()> {
         .get(&source_name)
         .ok_or_else(|| anyhow!("Could not find source {:?}!", source_name))?;
 
-    let (directory, one_filesystem) = match source_descriptor {
-        SourceDescriptor::DirectorySource {
-            directory,
-            cross_filesystems,
-            ..
-        } => (directory, !*cross_filesystems),
+    let directory = match source_descriptor {
+        SourceDescriptor::DirectorySource { directory, .. } => directory,
         SourceDescriptor::VirtualSource { .. } => {
             bail!("Cannot browse virtual source.");
         }
     };
 
     println!("Scanning source; this might take a little while...");
-    let mut dir_scan: FileTree1<Option<State>> = scan(directory, one_filesystem, &BTreeSet::new())?
+    let mut dir_scan: FileTree1<Option<State>> = scan(directory)?
         .ok_or_else(|| anyhow!("Empty source."))?
         .replace_meta(&None);
 

datman/src/commands/ilabel.rs

@@ -15,7 +15,6 @@ You should have received a copy of the GNU General Public License
 along with Yama.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-use std::collections::BTreeSet;
 use std::io;
 use std::io::{StdinLock, Stdout, Write};
 use std::path::Path;
@@ -187,13 +186,12 @@ pub fn interactive_labelling_session(path: &Path, source_name: String) -> anyhow
     if let SourceDescriptor::DirectorySource {
         hostname,
         directory,
-        cross_filesystems,
     } = source
     {
         let my_hostname = get_hostname();
         let mut dir_scan = if &my_hostname == hostname {
             info!("Scanning source; this might take a little while...");
-            scan(directory, !*cross_filesystems, &BTreeSet::new())?
+            scan(directory)?
                 .ok_or_else(|| anyhow!("Empty source."))?
                 .replace_meta(&None)
         } else {
@@ -208,15 +206,10 @@ pub fn interactive_labelling_session(path: &Path, source_name: String) -> anyhow
 
             // then request to scan
             info!("Requesting scan from remote source... (this may take some time)");
-            let scan = backup_source_requester::scanning(
-                &mut read,
-                &mut write,
-                directory.as_ref(),
-                !*cross_filesystems,
-                &BTreeSet::new(),
-            )?
-            .ok_or_else(|| anyhow!("Remote scan failed (does the directory exist?)"))?
-            .replace_meta(&None);
+            let scan =
+                backup_source_requester::scanning(&mut read, &mut write, directory.as_ref())?
+                    .ok_or_else(|| anyhow!("Remote scan failed (does the directory exist?)"))?
+                    .replace_meta(&None);
 
             backup_source_requester::quit(&mut read, &mut write)?;
 

datman/src/commands/prune.rs

@@ -1,220 +0,0 @@
-use crate::commands::backup::split_pointer_name;
-use crate::descriptor::RetentionPolicyConfig;
-use anyhow::{bail, Context};
-use log::info;
-use std::collections::{BTreeMap, BTreeSet};
-use std::io;
-use std::path::Path;
-use yama::commands::open_pile;
-use yama::operations::remove_pointer_safely;
-use yama::pile::PileDescriptor;
-
-pub struct RetentionBand {
-    pub interval_s: u64,
-    pub number_to_retain: u32,
-}
-
-pub struct RetentionPolicy {
-    pub retention_bands: Vec<RetentionBand>,
-}
-
-const DAY: u64 = 86400;
-const WEEK: u64 = 7 * DAY;
-const MONTH: u64 = 31 * DAY;
-const YEAR: u64 = 365 * DAY;
-
-impl RetentionPolicy {
-    pub fn from_config(descriptor: RetentionPolicyConfig) -> RetentionPolicy {
-        let mut policy = RetentionPolicy {
-            retention_bands: vec![],
-        };
-
-        if descriptor.daily != 0 {
-            policy.retention_bands.push(RetentionBand {
-                interval_s: DAY,
-                number_to_retain: descriptor.daily,
-            });
-        }
-
-        if descriptor.weekly != 0 {
-            policy.retention_bands.push(RetentionBand {
-                interval_s: WEEK,
-                number_to_retain: descriptor.weekly,
-            });
-        }
-
-        if descriptor.monthly != 0 {
-            policy.retention_bands.push(RetentionBand {
-                interval_s: MONTH,
-                number_to_retain: descriptor.monthly,
-            });
-        }
-
-        if descriptor.yearly != 0 {
-            policy.retention_bands.push(RetentionBand {
-                interval_s: YEAR,
-                number_to_retain: descriptor.yearly,
-            });
-        }
-
-        policy
-    }
-
-    /// Returns the set of snapshots to remove.
-    pub fn apply_returning_prunable(
-        &self,
-        snapshots_by_unix_time: BTreeMap<u64, String>,
-    ) -> BTreeSet<String> {
-        if snapshots_by_unix_time.is_empty() {
-            return BTreeSet::new();
-        }
-        let mut snapshots_included: BTreeSet<u64> = BTreeSet::new();
-
-        // Always mark the most recent snapshot as retained!
-        let last_snapshot = snapshots_by_unix_time.keys().rev().next().unwrap();
-        snapshots_included.insert(*last_snapshot);
-
-        let now_time = *last_snapshot;
-
-        for band in &self.retention_bands {
-            for multiple in 1..=band.number_to_retain {
-                let target_time = now_time - (multiple as u64) * band.interval_s;
-                if let Some((k, _)) = snapshots_by_unix_time.range(0..=target_time).rev().next() {
-                    snapshots_included.insert(*k);
-                }
-            }
-        }
-
-        // Find all prunable (unincluded) snapshots.
-        snapshots_by_unix_time
-            .into_iter()
-            .filter(|(k, _v)| !snapshots_included.contains(k))
-            .map(|(_k, v)| v)
-            .collect()
-    }
-}
-
-pub fn prune_with_retention_policy(
-    pile_path: &Path,
-    pile_desc: &PileDescriptor,
-    policy: &RetentionPolicy,
-    prompt_first: bool,
-) -> anyhow::Result<()> {
-    let pile = open_pile(&pile_path, &pile_desc).context("Failed to open pile")?;
-
-    let pointers = pile
-        .list_pointers()
-        .context("Failed to list pointers in pile")?;
-
-    let mut pointers_to_keep: BTreeSet<String> = pointers.iter().cloned().collect();
-
-    let pointers_to_remove = get_prunable_pointers(&policy, pointers);
-
-    for remove in &pointers_to_remove {
-        pointers_to_keep.remove(remove);
-    }
-
-    info!("Gory details:\n---\nKeep: {pointers_to_keep:?}\n---\nRemove: {pointers_to_remove:?}");
-    info!(
-        "{} pointers to remove ({} to keep) based on retention policy.",
-        pointers_to_remove.len(),
-        pointers_to_keep.len()
-    );
-
-    if prompt_first {
-        println!("Would you like to proceed? [y/N]: ");
-        let mut buffer = String::new();
-        let stdin = io::stdin(); // We get `Stdin` here.
-        stdin.read_line(&mut buffer)?;
-        if buffer.trim().to_ascii_lowercase() != "y" {
-            bail!("Aborted by user.");
-        }
-    }
-
-    for to_remove in pointers_to_remove {
-        let res = remove_pointer_safely(&pile, &to_remove).context("removing prunable pointers");
-
-        pile.flush()
-            .context("flushing pile after removing pointers")?;
-
-        res?;
-    }
-
-    Ok(())
-}
-
-fn get_prunable_pointers(policy: &RetentionPolicy, pointers: Vec<String>) -> BTreeSet<String> {
-    let mut split_pointers_by_name: BTreeMap<String, BTreeMap<u64, String>> = BTreeMap::new();
-
-    for pointer in pointers {
-        let (name, datetime) = if let Some(x) = split_pointer_name(&pointer) {
-            x
-        } else {
-            continue;
-        };
-
-        split_pointers_by_name
-            .entry(name)
-            .or_default()
-            .insert(datetime.timestamp().try_into().unwrap(), pointer);
-    }
-
-    let mut pointers_to_remove = BTreeSet::new();
-
-    for (_pointer_base_name, ts_to_pointer) in split_pointers_by_name {
-        let to_remove = policy.apply_returning_prunable(ts_to_pointer);
-
-        pointers_to_remove.extend(to_remove);
-    }
-
-    pointers_to_remove
-}
-
-#[cfg(test)]
-mod test {
-    use crate::commands::prune::{get_prunable_pointers, RetentionPolicy};
-    use crate::descriptor::RetentionPolicyConfig;
-
-    #[test]
-    fn test_prunable_pointers() {
-        let pointers = vec![
-            "alice+2022-09-28_05:00:00",
-            "alice+2022-09-28_02:00:00",
-            "alice+2022-09-21_05:00:00",
-            "alice+2022-09-14_05:00:00",
-            "alice+2022-09-08_05:00:00",
-            "alice+2022-09-07_05:00:00",
-            "alice+2022-09-01_05:00:00",
-            "bob+2022-09-28_06:00:00",
-            "bob+2022-09-28_03:00:00",
-            "bob+2022-09-21_06:00:00",
-            "bob+2022-09-14_06:00:00",
-            "bob+2022-09-08_06:00:00",
-            "bob+2022-09-07_06:00:00",
-            "bob+2022-09-01_06:00:00",
-        ]
-        .into_iter()
-        .map(|s| s.to_owned())
-        .collect();
-        let policy = RetentionPolicy::from_config(RetentionPolicyConfig {
-            daily: 0,
-            weekly: 3,
-            monthly: 0,
-            yearly: 0,
-        });
-
-        assert_eq!(
-            get_prunable_pointers(&policy, pointers)
-                .into_iter()
-                .collect::<Vec<_>>(),
-            vec![
-                "alice+2022-09-01_05:00:00",
-                "alice+2022-09-08_05:00:00",
-                "alice+2022-09-28_02:00:00",
-                "bob+2022-09-01_06:00:00",
-                "bob+2022-09-08_06:00:00",
-                "bob+2022-09-28_03:00:00",
-            ]
-        );
-    }
-}

datman/src/commands/pushpull.rs

@@ -1,306 +0,0 @@
-// Push and Pull support for Datman
-
-use anyhow::{bail, ensure, Context};
-use log::info;
-use std::collections::{BTreeMap, BTreeSet};
-use std::io::{Read, Write};
-use std::sync::Arc;
-use std::time::Instant;
-use yama::chunking::RecursiveUnchunker;
-use yama::commands::retrieve_tree_node;
-use yama::definitions::{ChunkId, PointerData, RecursiveChunkRef, TreeNode};
-use yama::pile::{Keyspace, Pile, PipelineDescription, RawPile};
-use yama::progress::ProgressTracker;
-use yama::remote::{read_message, write_message};
-
-pub fn offer_pointers<W: Write, RP: RawPile>(
-    pile: &Pile<RP>,
-    writer: &mut W,
-) -> anyhow::Result<BTreeMap<String, PointerData>> {
-    let mut pointers_to_offer: BTreeMap<String, PointerData> = BTreeMap::new();
-
-    for pointer_name in pile.list_pointers()? {
-        let pointer_data = pile
-            .read_pointer(&pointer_name)?
-            .context("Listed pointer not present")?;
-
-        pointers_to_offer.insert(pointer_name, pointer_data);
-    }
-
-    write_message(writer, &pointers_to_offer)?;
-    Ok(pointers_to_offer)
-}
-
-pub fn ensure_compatible_bypasses(
-    my_full: &Vec<PipelineDescription>,
-    my_bypass: &Vec<PipelineDescription>,
-    their_full: &Vec<PipelineDescription>,
-    their_bypass: &Vec<PipelineDescription>,
-) -> anyhow::Result<()> {
-    ensure!(
-        my_full.starts_with(&my_bypass),
-        "Our full pipeline is not an extension of the bypass pipeline."
-    );
-    ensure!(
-        their_full.starts_with(&their_bypass),
-        "Their full pipeline is not an extension of their bypass pipeline."
-    );
-
-    let my_bypassed_parts = &my_full[my_bypass.len()..];
-    let their_bypassed_parts = &their_full[their_bypass.len()..];
-
-    ensure!(
-        my_bypassed_parts == their_bypassed_parts,
-        "Our bypassed parts and their bypassed parts are not the same.\nOurs: {:?}\nTheirs: {:?}",
-        my_bypassed_parts,
-        their_bypassed_parts
-    );
-
-    Ok(())
-}
-
-pub fn negotiate_bypassed_pile<R: Read, W: Write>(
-    pile: &Pile<Arc<Box<dyn RawPile>>>,
-    bypass_pile: &Box<dyn RawPile>,
-    reader: &mut R,
-    writer: &mut W,
-) -> anyhow::Result<()> {
-    let my_full_pipeline = pile.raw_pile.describe_pipeline()?;
-    let my_bypass_pipeline = bypass_pile.describe_pipeline()?;
-
-    write_message(writer, &my_full_pipeline)?;
-    write_message(writer, &my_bypass_pipeline)?;
-    writer.flush()?;
-
-    let their_full_pipeline = read_message::<_, Vec<PipelineDescription>>(reader)?;
-    let their_bypass_pipeline = read_message::<_, Vec<PipelineDescription>>(reader)?;
-
-    ensure_compatible_bypasses(
-        &my_full_pipeline,
-        &my_bypass_pipeline,
-        &their_full_pipeline,
-        &their_bypass_pipeline,
-    )?;
-
-    Ok(())
-}
-
-fn collect_chunk_ids(
-    pile: &Pile<Arc<Box<dyn RawPile>>>,
-    root: &TreeNode,
-    chunk_ids: &mut BTreeSet<ChunkId>,
-) -> anyhow::Result<()> {
-    root.visit(
-        &mut |tree_node, _| {
-            match tree_node {
-                TreeNode::NormalFile { content, .. } => {
-                    collect_chunk_ids_from_chunkref(pile, content, chunk_ids)?;
-                }
-                _ => {}
-            }
-            Ok(())
-        },
-        "".to_owned(),
-    )?;
-    Ok(())
-}
-
-fn collect_chunk_ids_from_chunkref(
-    pile: &Pile<Arc<Box<dyn RawPile>>>,
-    chunk_ref: &RecursiveChunkRef,
-    collection: &mut BTreeSet<ChunkId>,
-) -> anyhow::Result<()> {
-    if chunk_ref.depth == 0 {
-        collection.insert(chunk_ref.chunk_id);
-    } else {
-        let shallower_chunk_ref = RecursiveChunkRef {
-            chunk_id: chunk_ref.chunk_id,
-            depth: chunk_ref.depth - 1,
-        };
-        let mut unchunker = RecursiveUnchunker::new(pile, shallower_chunk_ref);
-        let mut next_chunk_id: ChunkId = Default::default();
-        loop {
-            let read = unchunker.read(&mut next_chunk_id[..])?;
-            if read == 0 {
-                break;
-            } else if read < next_chunk_id.len() {
-                unchunker.read_exact(&mut next_chunk_id[read..])?;
-            }
-            collection.insert(next_chunk_id);
-        }
-    }
-    Ok(())
-}
-
-pub fn offering_side<R: Read, W: Write>(
-    pile: &Pile<Arc<Box<dyn RawPile>>>,
-    bypass_pile: &Box<dyn RawPile>,
-    reader: &mut R,
-    writer: &mut W,
-    mut progress: Box<dyn ProgressTracker>,
-) -> anyhow::Result<()> {
-    let version = env!("CARGO_PKG_VERSION");
-    let expecting = format!("Datman Pull Accepter {}", version);
-    write_message(writer, &format!("Datman Pull Offerer {}", version))?;
-    writer.flush()?;
-
-    let found: String = read_message(reader)?;
-    ensure!(
-        found == expecting,
-        "Version mismatch. Expecting {:?} got {:?}",
-        expecting,
-        found
-    );
-
-    // First 'negotiate' (for now: assert) a pile bypass.
-    // This lets us avoid decompressing things before recompressing them at the other end,
-    // assuming both ends use the same dictionary.
-    negotiate_bypassed_pile(pile, &bypass_pile, reader, writer)?;
-
-    let offered_pointers = offer_pointers(pile, writer)?;
-    let wanted_pointers = read_message::<_, BTreeSet<String>>(reader)?;
-
-    let mut chunks_to_offer: BTreeSet<ChunkId> = BTreeSet::new();
-
-    for pointer_name in &wanted_pointers {
-        let pointer_data = offered_pointers
-            .get(pointer_name)
-            .with_context(|| format!("Requested pointer {:?} was not offered", pointer_name))?;
-
-        collect_chunk_ids_from_chunkref(pile, &pointer_data.chunk_ref, &mut chunks_to_offer)?;
-
-        let root_node = retrieve_tree_node(pile, pointer_data.chunk_ref.clone())?;
-        collect_chunk_ids(pile, &root_node.node, &mut chunks_to_offer)?;
-    }
-
-    write_message(writer, &chunks_to_offer)?;
-    writer.flush()?;
-
-    let chunks_to_skip: BTreeSet<ChunkId> = read_message(reader)?;
-    let chunks_to_send: Vec<ChunkId> = chunks_to_offer
-        .difference(&chunks_to_skip)
-        .cloned()
-        .collect();
-
-    drop(chunks_to_offer);
-    drop(chunks_to_skip);
-
-    let start_sort_by_hints = Instant::now();
-    let chunks_to_send_with_hints: BTreeSet<(u64, ChunkId)> = chunks_to_send
-        .into_iter()
-        .map(|chunk_id| {
-            pile.raw_pile
-                .chunk_id_transfer_ordering_hint(&chunk_id)
-                .map(|hint| (hint, chunk_id))
-        })
-        .collect::<anyhow::Result<_>>()?;
-    let time_to_sort_by_hints = Instant::now() - start_sort_by_hints;
-    info!(
-        "{} s to sort {} chunks by their hints",
-        time_to_sort_by_hints.as_secs_f32(),
-        chunks_to_send_with_hints.len()
-    );
-
-    progress.set_max_size(chunks_to_send_with_hints.len() as u64);
-    progress.set_current(0);
-    for (_hint, chunk_id) in chunks_to_send_with_hints {
-        let chunk_data = bypass_pile
-            .read(Keyspace::Chunk, &chunk_id)?
-            .context("Chunk vanished")?;
-
-        write_message(writer, &Some((chunk_id, chunk_data)))?;
-        progress.inc_progress(1);
-    }
-
-    write_message(writer, &None::<Option<(ChunkId, Vec<u8>)>>)?;
-
-    writer.flush()?;
-
-    Ok(())
-}
-
-pub fn accepting_side<R: Read, W: Write>(
-    pile: &Pile<Arc<Box<dyn RawPile>>>,
-    bypass_pile: &Box<dyn RawPile>,
-    reader: &mut R,
-    writer: &mut W,
-    mut progress: Box<dyn ProgressTracker>,
-) -> anyhow::Result<()> {
-    let version = env!("CARGO_PKG_VERSION");
-    let expecting = format!("Datman Pull Offerer {}", version);
-    write_message(writer, &format!("Datman Pull Accepter {}", version))?;
-    writer.flush()?;
-
-    let found: String = read_message(reader)?;
-    ensure!(
-        found == expecting,
-        "Version mismatch. Expecting {:?} got {:?}",
-        expecting,
-        found
-    );
-
-    // First 'negotiate' (for now: assert) a pile bypass.
-    // This lets us avoid decompressing things before recompressing them at the other end,
-    // assuming both ends use the same dictionary.
-    negotiate_bypassed_pile(pile, &bypass_pile, reader, writer)?;
-
-    let offered_pointers: BTreeMap<String, PointerData> = read_message(reader)?;
-    let mut wanted_pointers: BTreeSet<String> = BTreeSet::new();
-
-    for (pointer_name, pointer_data) in &offered_pointers {
-        if pile.read_pointer(pointer_name)?.is_none() {
-            wanted_pointers.insert(pointer_name.clone());
-            if let Some(parent) = &pointer_data.parent_pointer {
-                if pile.read_pointer(parent)?.is_none() && !offered_pointers.contains_key(parent) {
-                    bail!("Offered pointer {:?} requires parent {:?} which we don't have and isn't offered.", pointer_name, parent);
-                }
-            }
-        }
-    }
-
-    write_message(writer, &wanted_pointers)?;
-    writer.flush()?;
-
-    let offered_chunks: BTreeSet<ChunkId> = read_message(reader)?;
-    let mut chunks_to_skip: BTreeSet<ChunkId> = BTreeSet::new();
-    for chunk_id in &offered_chunks {
-        if pile.chunk_exists(chunk_id)? {
-            chunks_to_skip.insert(*chunk_id);
-        }
-    }
-
-    write_message(writer, &chunks_to_skip)?;
-    writer.flush()?;
-
-    let num_chunks_to_recv = offered_chunks.len() - chunks_to_skip.len();
-
-    let mut chunks_to_recv: BTreeSet<ChunkId> = offered_chunks
-        .difference(&chunks_to_skip)
-        .cloned()
-        .collect();
-
-    drop(offered_chunks);
-    drop(chunks_to_skip);
-
-    progress.set_max_size(num_chunks_to_recv as u64);
-    progress.set_current(0);
-
-    while let Some((chunk_id, chunk_data)) = read_message::<_, Option<(ChunkId, Vec<u8>)>>(reader)?
-    {
-        ensure!(
-            chunks_to_recv.remove(&chunk_id),
-            "Received unexpected chunk"
-        );
-        bypass_pile.write(Keyspace::Chunk, &chunk_id, &chunk_data)?;
-        progress.inc_progress(1);
-    }
-
-    ensure!(chunks_to_recv.is_empty(), "Unreceived chunks.");
-
-    for (pointer_name, pointer_data) in &offered_pointers {
-        pile.write_pointer(pointer_name, pointer_data)?;
-    }
-    pile.flush()?;
-
-    Ok(())
-}

datman/src/commands/report.rs

@@ -1,456 +0,0 @@
-use crate::commands::backup::split_pointer_name;
-use crate::descriptor::{Descriptor, DestPileDescriptor};
-use anyhow::Context;
-use chrono::{Date, DateTime, Utc};
-use comfy_table::presets::UTF8_FULL;
-use comfy_table::{Attribute, Cell, Color, ContentArrangement, Table};
-use humansize::FileSize;
-use itertools::Itertools;
-use log::info;
-use std::collections::{BTreeMap, BTreeSet};
-use std::ffi::CString;
-use std::io::Read;
-use std::mem;
-use std::mem::size_of;
-use std::os::unix::ffi::OsStrExt;
-use std::os::unix::fs::MetadataExt;
-use std::path::Path;
-use yama::chunking::RecursiveUnchunker;
-use yama::commands::{load_pile_descriptor, open_pile, retrieve_tree_node};
-use yama::definitions::{ChunkId, RecursiveChunkRef, TreeNode};
-use yama::pile::{DebugStatistics, Pile, RawPile};
-
-// This module generates reports for a Datman system.
-// Referenced Chunk IDs are counted and used to give an indication of size.
-// Chunk IDs are summarised into u32s to reduce memory usage. Since the report is approximate,
-// it doesn't matter if there are a few collisions (although they are still fairly unlikely to
-// affect much).
-
-#[derive(Clone)]
-pub struct Report {
-    pub last_source_backups: BTreeMap<String, Option<DateTime<Utc>>>,
-
-    pub chunk_usages_aggregated: bool,
-    pub chunk_usage: BTreeMap<String, Sizes>,
-
-    pub debug_stats: Option<DebugStatistics>,
-}
-
-#[derive(Clone, Default)]
-pub struct Sizes {
-    /// Total number of chunks that we refer to.
-    pub total: u32,
-
-    /// Each referred chunk is counted once here, but divided by the number of sharers.
-    /// We are 'morally responsible' for this many chunks.
-    pub moral: u32,
-
-    /// Number of chunks that only we point to.
-    pub unique: u32,
-
-    /// Number of chunks for which we are the oldest (lexicographically earliest) pointer to point
-    /// to those chunks.
-    pub rollup: u32,
-}
-
-type CondensedChunkId = u32;
-
-fn condense_chunk_id(chunk_id: ChunkId) -> CondensedChunkId {
-    CondensedChunkId::from_be_bytes(
-        chunk_id[0..size_of::<CondensedChunkId>()]
-            .try_into()
-            .unwrap(),
-    )
-}
-
-pub fn generate_report(
-    dest_pile_descriptor: &DestPileDescriptor,
-    descriptor: &Descriptor,
-    aggregate_chunk_usage_by_month: bool,
-) -> anyhow::Result<Report> {
-    let pile_descriptor = load_pile_descriptor(&dest_pile_descriptor.path)?;
-    let pile = open_pile(&dest_pile_descriptor.path, &pile_descriptor)?;
-
-    let debug_stats = pile.raw_pile.debug_statistics()?;
-
-    let mut pointers_to_parent_and_chunkids = BTreeMap::new();
-    let mut pointergroups_to_pointers: BTreeMap<String, Vec<String>> = BTreeMap::new();
-
-    info!("Collecting chunk IDs... This will probably be slow.");
-    for pointer_name in pile.list_pointers()? {
-        let pointer = pile
-            .read_pointer(&pointer_name)?
-            .context("listed pointer doesn't exist")?;
-        let root_node = retrieve_tree_node(&pile, pointer.chunk_ref)?;
-        let pointer_chunk_ids = collect_chunk_ids(&pile, &root_node.node)?;
-
-        let pointergroup = if aggregate_chunk_usage_by_month {
-            let (base, date_time) =
-                split_pointer_name(&pointer_name).context("Can't split pointer name")?;
-            format!("{}+{}", base, date_time.format("%Y-%m"))
-        } else {
-            pointer_name.clone()
-        };
-
-        pointergroups_to_pointers
-            .entry(pointergroup)
-            .or_default()
-            .push(pointer_name.clone());
-
-        pointers_to_parent_and_chunkids
-            .insert(pointer_name, (pointer.parent_pointer, pointer_chunk_ids));
-    }
-
-    // Now we iterate in reverse order, making a list of count of Chunk IDs.
-    // At the same time, we can also calculate 'rollup' sizes.
-    let mut chunk_sharer_counts: BTreeMap<CondensedChunkId, u16> = BTreeMap::new();
-
-    let mut pointergroup_stats: BTreeMap<String, Sizes> = BTreeMap::new();
-
-    for (pointergroup_name, pointers_in_group) in pointergroups_to_pointers.iter().rev() {
-        let mut deduped_chunks = BTreeSet::new();
-
-        for pointer_name in pointers_in_group {
-            deduped_chunks.extend(iter_over_all_chunkids_incl_parents(
-                &pointers_to_parent_and_chunkids,
-                &pointer_name,
-            ))
-        }
-
-        let mut rollup_count = 0;
-        for chunk in deduped_chunks {
-            let count = chunk_sharer_counts.entry(chunk).or_default();
-            *count += 1;
-            if *count == 1 {
-                rollup_count += 1;
-            }
-        }
-        let entry = pointergroup_stats
-            .entry(pointergroup_name.to_owned())
-            .or_default();
-        entry.rollup = rollup_count;
-    }
-
-    // Now go through again and update all the stats!
-    for (pointergroup_name, pointers_in_group) in &pointergroups_to_pointers {
-        let mut deduped_chunks = BTreeSet::new();
-
-        for pointer_name in pointers_in_group {
-            deduped_chunks.extend(iter_over_all_chunkids_incl_parents(
-                &pointers_to_parent_and_chunkids,
-                &pointer_name,
-            ))
-        }
-
-        let mut unique_count = 0;
-        let mut shared_count_by_sharers = [0u32; 256];
-        let total_count = deduped_chunks.len();
-        for chunk in deduped_chunks {
-            let count = chunk_sharer_counts[&chunk];
-            if count == 1 {
-                unique_count += 1;
-            } else {
-                let num_sharers = (count as usize).min(256);
-                shared_count_by_sharers[num_sharers - 1] += 1;
-            }
-        }
-
-        let mut sharers_sum: f64 = 0.0;
-        for (sharers_minus_one, count) in shared_count_by_sharers.into_iter().enumerate() {
-            sharers_sum += (count as f64) / (sharers_minus_one + 1) as f64;
-        }
-
-        let entry = pointergroup_stats
-            .entry(pointergroup_name.to_owned())
-            .or_default();
-        entry.moral = (sharers_sum.ceil() as u32) + unique_count;
-        entry.unique = unique_count;
-        entry.total = total_count as u32;
-    }
-
-    let mut last_backed_up = BTreeMap::new();
-    for source_name in descriptor.sources.keys().cloned() {
-        last_backed_up.insert(source_name, None);
-    }
-
-    for pointer_name in pointers_to_parent_and_chunkids.keys() {
-        if let Some((source_name, date_time)) = split_pointer_name(&pointer_name) {
-            last_backed_up.insert(source_name, Some(date_time));
-        }
-    }
-
-    Ok(Report {
-        last_source_backups: last_backed_up,
-        chunk_usage: pointergroup_stats,
-        chunk_usages_aggregated: aggregate_chunk_usage_by_month,
-        debug_stats,
-    })
-}
-
-// Does not filter duplicates...
-fn iter_over_all_chunkids_incl_parents<'a>(
-    pointers_to_parent_and_chunkids: &'a BTreeMap<
-        String,
-        (Option<String>, BTreeSet<CondensedChunkId>),
-    >,
-    pointer_name: &'a str,
-) -> Box<dyn Iterator<Item = CondensedChunkId> + 'a> {
-    let (parent, chunks) = &pointers_to_parent_and_chunkids[pointer_name];
-    match parent {
-        None => Box::new(chunks.iter().copied()),
-        Some(parent) => Box::new(chunks.iter().copied().chain(
-            iter_over_all_chunkids_incl_parents(pointers_to_parent_and_chunkids, &parent),
-        )),
-    }
-}
-
-fn collect_chunk_ids<RP: RawPile>(
-    pile: &Pile<RP>,
-    root: &TreeNode,
-) -> anyhow::Result<BTreeSet<CondensedChunkId>> {
-    let mut chunk_ids = BTreeSet::new();
-    root.visit(
-        &mut |tree_node, _| {
-            match tree_node {
-                TreeNode::NormalFile { content, .. } => {
-                    collect_chunk_ids_from_chunkref(pile, content, &mut chunk_ids)?;
-                }
-                _ => {}
-            }
-            Ok(())
-        },
-        "".to_owned(),
-    )?;
-    Ok(chunk_ids)
-}
-
-fn collect_chunk_ids_from_chunkref<RP: RawPile>(
-    pile: &Pile<RP>,
-    chunk_ref: &RecursiveChunkRef,
-    collection: &mut BTreeSet<CondensedChunkId>,
-) -> anyhow::Result<()> {
-    if chunk_ref.depth == 0 {
-        collection.insert(condense_chunk_id(chunk_ref.chunk_id));
-    } else {
-        let shallower_chunk_ref = RecursiveChunkRef {
-            chunk_id: chunk_ref.chunk_id,
-            depth: chunk_ref.depth - 1,
-        };
-        let mut unchunker = RecursiveUnchunker::new(pile, shallower_chunk_ref);
-        let mut next_chunk_id: ChunkId = Default::default();
-        loop {
-            let read = unchunker.read(&mut next_chunk_id[..])?;
-            if read == 0 {
-                break;
-            } else if read < next_chunk_id.len() {
-                unchunker.read_exact(&mut next_chunk_id[read..])?;
-            }
-            collection.insert(condense_chunk_id(next_chunk_id));
-        }
-    }
-    Ok(())
-}
-
-pub fn print_report(report: &Report) -> anyhow::Result<()> {
-    print_time_report(report)?;
-    print_size_report(report)?;
-    Ok(())
-}
-
-pub fn print_time_report(report: &Report) -> anyhow::Result<()> {
-    println!("\nBackup times");
-    let mut table = Table::new();
-    table
-        .load_preset(UTF8_FULL)
-        .set_content_arrangement(ContentArrangement::DynamicFullWidth)
-        .enforce_styling();
-
-    table.set_header(vec![
-        Cell::new("Source name").fg(Color::Cyan),
-        Cell::new("Last backed up").fg(Color::Cyan),
-    ]);
-
-    let today = Utc::today();
-
-    let sort_by_dates: Vec<(Option<Date<Utc>>, String)> = report
-        .last_source_backups
-        .iter()
-        .map(|(name, datetime)| (datetime.map(|dt| dt.date()), name.to_owned()))
-        .sorted()
-        .collect();
-
-    for (date, source_name) in sort_by_dates {
-        match date {
-            None => {
-                table.add_row(vec![
-                    Cell::new(source_name).fg(Color::Magenta),
-                    Cell::new("NEVER").fg(Color::Red).add_attributes(vec![
-                        Attribute::SlowBlink,
-                        Attribute::RapidBlink,
-                        Attribute::Bold,
-                    ]),
-                ]);
-            }
-            Some(date) => {
-                let number_of_days = today.signed_duration_since(date).num_days();
-                let num_days_human = if number_of_days > 0 {
-                    format!("{number_of_days} days ago")
-                } else {
-                    format!("today")
-                };
-
-                let colour = if number_of_days < 2 {
-                    Color::Green
-                } else if number_of_days < 14 {
-                    Color::Yellow
-                } else {
-                    Color::Red
-                };
-
-                let formatted_date = date.format("%F");
-
-                let mut val_cell =
-                    Cell::new(format!("{formatted_date} {num_days_human}")).fg(colour);
-                if number_of_days > 28 {
-                    val_cell = val_cell.add_attribute(Attribute::SlowBlink);
-                }
-
-                table.add_row(vec![Cell::new(source_name).fg(Color::Magenta), val_cell]);
-            }
-        }
-    }
-
-    println!("{table}");
-
-    Ok(())
-}
-
-pub fn print_size_report(report: &Report) -> anyhow::Result<()> {
-    println!("\nPile size");
-    let mut table = Table::new();
-    table
-        .load_preset(UTF8_FULL)
-        .set_content_arrangement(ContentArrangement::DynamicFullWidth)
-        .enforce_styling();
-    //.set_width(100);
-    table.set_header(vec![
-        Cell::new("Pointer name").fg(Color::Cyan),
-        Cell::new("Rollup size").fg(Color::Magenta),
-        Cell::new("Unique size").fg(Color::Magenta),
-        Cell::new("Moral size").fg(Color::Magenta),
-        Cell::new("Total size").fg(Color::Magenta),
-    ]);
-
-    let average_chunk_size = report
-        .debug_stats
-        .as_ref()
-        .map(|stats| stats.total_chunk_size as f64 / stats.number_of_chunks as f64);
-    for (pointer_name, sizes) in &report.chunk_usage {
-        table.add_row(vec![
-            Cell::new(pointer_name).fg(Color::Blue),
-            Cell::new(format_size(sizes.rollup, average_chunk_size)).fg(Color::Yellow),
-            Cell::new(format_size(sizes.unique, average_chunk_size)).fg(Color::Yellow),
-            Cell::new(format_size(sizes.moral, average_chunk_size)).fg(Color::Yellow),
-            Cell::new(format_size(sizes.total, average_chunk_size)).fg(Color::Yellow),
-        ]);
-    }
-
-    println!("{table}");
-
-    Ok(())
-}
-
-fn format_size(chunks: u32, average_chunk_size: Option<f64>) -> String {
-    let est_size_suffix = average_chunk_size
-        .map(|bytes_per_chunk| {
-            let num_bytes = (chunks as f64 * bytes_per_chunk) as u64;
-            let mut format = humansize::file_size_opts::BINARY;
-            format.decimal_places = 1;
-            format!(" ~{}", num_bytes.file_size(format).unwrap())
-        })
-        .unwrap_or_default();
-    format!("{} c{}", chunks, est_size_suffix)
-}
-
-fn calculate_total_filesize_of_dir(dir: &Path) -> anyhow::Result<u64> {
-    let mut total = 0;
-    for file in std::fs::read_dir(dir)? {
-        let file = file?;
-        let metadata = file.metadata()?;
-        total += metadata.size();
-        if metadata.is_dir() {
-            total += calculate_total_filesize_of_dir(&file.path())?;
-        }
-    }
-    Ok(total)
-}
-
-pub fn print_filesystem_space(pile_path: &Path) -> anyhow::Result<()> {
-    let usage_for_pile = calculate_total_filesize_of_dir(&pile_path)?;
-
-    let path_c = CString::new(pile_path.as_os_str().as_bytes()).unwrap();
-    let stats = unsafe {
-        let mut stats: libc::statfs = mem::zeroed();
-        match libc::statfs(path_c.as_ptr(), &mut stats) {
-            0 => Ok(stats),
-            other => Err(std::io::Error::from_raw_os_error(other)),
-        }
-    }?;
-
-    // On a BTRFS system with 2 disks in RAID1, note (about df -h):
-    // - 'Size' shows the average size of the two disks. I think of it as 'ideal size'.
-    // - 'Avail' seems to show the actual number of bytes usable.
-    // - 'Used' seems to show the actual number of bytes used.
-    // In short: probably avoid relying on 'size'.
-
-    let block_size = stats.f_bsize as i64;
-    let used_bytes = (stats.f_blocks - stats.f_bfree) as i64 * block_size;
-    let avail_bytes = stats.f_bavail as i64 * block_size;
-    let usable_bytes = used_bytes + avail_bytes;
-    let theoretical_size = stats.f_blocks as i64 * block_size;
-
-    let mut format = humansize::file_size_opts::BINARY;
-    format.decimal_places = 1;
-    format.decimal_zeroes = 1;
-
-    println!("\nFilesystem Information");
-
-    let mut table = Table::new();
-    table
-        .load_preset(UTF8_FULL)
-        .set_content_arrangement(ContentArrangement::DynamicFullWidth)
-        .enforce_styling();
-    //.set_width(100);
-    table.set_header(vec![
-        Cell::new("Theoretical Size").fg(Color::Cyan),
-        Cell::new("Usable Size").fg(Color::Cyan),
-        Cell::new("Used").fg(Color::Cyan),
-        Cell::new("Used for Pile").fg(Color::Cyan),
-        Cell::new("Available").fg(Color::Cyan),
-    ]);
-
-    let available_space_colour = if avail_bytes < 8 * 1024 * 1024 * 1024 {
-        Color::Red
-    } else if avail_bytes < 64 * 1024 * 1024 * 1024 {
-        Color::Yellow
-    } else {
-        Color::Green
-    };
-
-    table.add_row(vec![
-        Cell::new(format!(
-            "{:>9}",
-            theoretical_size.file_size(&format).unwrap()
-        ))
-        .fg(Color::Blue),
-        Cell::new(format!("{:>9}", usable_bytes.file_size(&format).unwrap())).fg(Color::Blue),
-        Cell::new(format!("{:>9}", used_bytes.file_size(&format).unwrap())).fg(Color::Blue),
-        Cell::new(format!("{:>9}", usage_for_pile.file_size(&format).unwrap())).fg(Color::Blue),
-        Cell::new(format!("{:>9}", avail_bytes.file_size(&format).unwrap()))
-            .fg(available_space_colour),
-    ]);
-
-    print!("{table}");
-
-    Ok(())
-}

datman/src/descriptor.rs

@@ -38,10 +38,6 @@ pub struct Descriptor {
     pub piles: HashMap<String, DestPileDescriptor>,
 
     pub remote_hosts: HashMap<String, RemoteHostDescriptor>,
-
-    #[serde(default)]
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub retention: Option<RetentionPolicyConfig>,
 }
 
 #[derive(Clone, Serialize, Deserialize, Debug)]
@@ -50,22 +46,12 @@ pub struct RemoteHostDescriptor {
     pub path_to_datman: Option<String>,
 }
 
-#[derive(Clone, Serialize, Deserialize, Debug)]
-pub struct RetentionPolicyConfig {
-    pub daily: u32,
-    pub weekly: u32,
-    pub monthly: u32,
-    pub yearly: u32,
-}
-
 #[derive(Clone, Serialize, Deserialize, Debug)]
 #[serde(untagged)]
 pub enum SourceDescriptor {
     DirectorySource {
         hostname: String,
         directory: PathBuf,
-        #[serde(default)]
-        cross_filesystems: bool,
     },
     VirtualSource {
         /// The name of the helper program that will be used to do this backup.

datman/src/labelling.rs

@@ -15,10 +15,10 @@ You should have received a copy of the GNU General Public License
 along with Yama.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-use std::collections::{BTreeSet, HashMap};
+use std::collections::HashMap;
 use std::fs::File;
 use std::io::{BufRead, BufReader, Write};
-use std::path::{Path, PathBuf};
+use std::path::Path;
 
 use anyhow::anyhow;
 use anyhow::Context;
@@ -222,23 +222,6 @@ impl LabellingRules {
         }
         None
     }
-
-    pub fn get_exclusions_set(&self, base: &Path) -> BTreeSet<PathBuf> {
-        let mut exclusions = BTreeSet::new();
-
-        for (ext_path, state) in &self.position_based_rules {
-            assert!(ext_path.is_empty() || ext_path.starts_with('/'));
-            let full_path = PathBuf::from(format!(
-                "{}{ext_path}",
-                base.to_str().expect("base path must always be utf-8")
-            ));
-            if state == &Excluded {
-                exclusions.insert(full_path);
-            }
-        }
-
-        exclusions
-    }
 }
 
 /// Uninteractively label the nodes.

datman/src/remote/backup_source_requester.rs

@@ -1,19 +1,15 @@
 use crate::commands::backup::{get_pointer_name_at, label_filter_and_convert};
 use crate::descriptor::{Descriptor, DestPileDescriptor, SourceDescriptor};
-use crate::labelling::load_labelling_rules;
 use crate::tree::FileTree;
 use anyhow::{anyhow, bail};
 use chrono::Utc;
 use log::info;
-use std::collections::BTreeSet;
 use std::io::{Read, Write};
-use std::path::{Path, PathBuf};
+use std::path::Path;
 use std::process::{Child, Command, Stdio};
 use std::sync::Arc;
 use yama::commands::{load_pile_descriptor, open_pile};
-use yama::definitions::{PartialPointerData, TreeNode};
-use yama::operations::storing::{pointer_ops_prepare_to_store, pointers_ops_after_store};
-use yama::pile::access_guard::PileGuard;
+use yama::definitions::TreeNode;
 use yama::pile::{Pile, RawPile, StoragePipelineSettings};
 use yama::progress::ProgressTracker;
 use yama::remote::responder::{Responder, ResponderWritingPipeline};
@@ -49,14 +45,10 @@ pub fn scanning<R: Read, W: Write>(
     read: &mut R,
     write: &mut W,
     path: &Path,
-    one_filesystem: bool,
-    exclusions: &BTreeSet<PathBuf>,
 ) -> anyhow::Result<Option<FileTree<(), (), (), ()>>> {
     info!("Scanning.");
     write_message(write, &"scan")?;
     write_message(write, &path)?;
-    write_message(write, &one_filesystem)?;
-    write_message(write, exclusions)?;
     write.flush()?;
     let scan_result: Option<FileTree<(), (), (), ()>> = read_message(read)?;
 
@@ -72,15 +64,19 @@ pub fn chunking<
     read: R,
     mut write: W,
     path: &Path,
+    pointer_name: String,
     tree_node: &TreeNode,
     raw_pile: Arc<RP>,
+    parent: Option<String>,
     progress_bar: PT,
     use_writing_pipeline: bool,
-) -> anyhow::Result<(R, W, PartialPointerData)> {
+) -> anyhow::Result<(R, W)> {
     info!("Chunking.");
     write_message(&mut write, &"chunk")?;
     write_message(&mut write, &path)?;
+    write_message(&mut write, &pointer_name)?;
     write_message(&mut write, tree_node)?;
+    write_message(&mut write, &parent)?;
     write.flush()?;
 
     let (writing_pipeline, control_rx) = if use_writing_pipeline {
@@ -101,13 +97,11 @@ pub fn chunking<
         (None, None)
     };
 
-    let guarded_pile = PileGuard::new(Arc::clone(&raw_pile), true);
-
     let (r_handle, w_handle, join_handles) = Responder::start(
         read,
         write,
         get_number_of_workers("YAMA_RESPONDERS") as u16,
-        Arc::new(guarded_pile),
+        raw_pile,
         writing_pipeline,
         progress_bar,
     );
@@ -117,7 +111,7 @@ pub fn chunking<
     for handle in join_handles {
         handle.join().expect("Join handle should not fail");
     }
-    let mut read = r_handle.join().unwrap();
+    let read = r_handle.join().unwrap();
     let write = w_handle.join().unwrap();
 
     if let Some(control_rx) = control_rx {
@@ -128,9 +122,7 @@ pub fn chunking<
 
     info!("Remote finished chunking.");
 
-    let pointer_data: PartialPointerData = read_message(&mut read)?;
-
-    Ok((read, write, pointer_data))
+    Ok((read, write))
 }
 
 pub fn quit<R: Read, W: Write>(read: &mut R, write: &mut W) -> anyhow::Result<()> {
@@ -183,7 +175,6 @@ pub fn backup_remote_source_to_destination<PT: ProgressTracker + Send + 'static>
         SourceDescriptor::DirectorySource {
             hostname,
             directory,
-            cross_filesystems,
         } => {
             let remote_host_descriptor = descriptor
                 .remote_hosts
@@ -203,22 +194,13 @@ pub fn backup_remote_source_to_destination<PT: ProgressTracker + Send + 'static>
             info!("Connecting...");
             introduction(&mut read, &mut write)?;
 
-            let rules = load_labelling_rules(desc_path, source_name)?;
-            let exclusions = rules.get_exclusions_set(directory);
-
             // then request to scan
             info!("Requesting scan... (this may take some time)");
-            let scan_result = scanning(
-                &mut read,
-                &mut write,
-                directory.as_ref(),
-                !*cross_filesystems,
-                &exclusions,
-            )?
-            .ok_or_else(|| anyhow!("Remote scan failed (does the directory exist?)"))?;
+            let scan_result = scanning(&mut read, &mut write, directory.as_ref())?
+                .ok_or_else(|| anyhow!("Remote scan failed (does the directory exist?)"))?;
 
-            let mut root =
-                label_filter_and_convert(scan_result, descriptor, source_name, &rules, dest)?
+            let root =
+                label_filter_and_convert(scan_result, descriptor, desc_path, source_name, dest)?
                     .ok_or_else(|| anyhow!("Empty filter..."))?;
 
             let absolute_dest_path = desc_path.join(&dest.path);
@@ -266,27 +248,19 @@ pub fn backup_remote_source_to_destination<PT: ProgressTracker + Send + 'static>
             let raw_pile = Arc::new(pile.raw_pile);
             let pile = Pile::new(raw_pile.clone());
 
-            pointer_ops_prepare_to_store(&pile, &mut root, &parent)?;
-
-            info!(
-                "Have pointer_name = {:?}, parent = {:?}",
-                pointer_name, parent
-            );
-
-            let (mut read, mut write, pointer_data) = chunking(
+            let (mut read, mut write) = chunking(
                 read,
                 write,
                 directory.as_ref(),
+                pointer_name.clone(),
                 &root,
                 raw_pile,
+                parent,
                 progress_bar,
                 true,
             )?;
 
             quit(&mut read, &mut write)?;
-
-            pointers_ops_after_store(&pile, &pointer_name, &pointer_data.complete(parent))?;
-
             pile.flush()?;
 
             info!("Stored! Checking for existence...");

datman/src/remote/backup_source_responder.rs

@@ -1,25 +1,21 @@
 // This file implements the responder side of the backup source protocol -- the protocol used
 // to connect to remote backup sources.
 
-use std::collections::BTreeSet;
+use crate::tree::scan;
+use anyhow::bail;
+use crossbeam_channel::Sender;
+use log::info;
 use std::io::{stdin, stdout, Read, Write};
 use std::path::PathBuf;
 use std::sync::Arc;
 use std::time::Instant;
-
-use anyhow::bail;
-use crossbeam_channel::Sender;
-use log::info;
-
-use yama::definitions::{PartialPointerData, TreeNode};
+use yama::definitions::TreeNode;
 use yama::pile::{Pile, RawPile};
 use yama::progress::ProgressTracker;
 use yama::remote::requester::Requester;
 use yama::remote::{read_message, write_message, RequestBody, ResponseBody};
 use yama::utils::get_number_of_workers;
 
-use crate::tree::scan;
-
 pub fn introduction<R: Read, W: Write>(read: &mut R, write: &mut W) -> anyhow::Result<()> {
     let version = env!("CARGO_PKG_VERSION");
     write_message(
@@ -43,14 +39,48 @@ pub fn introduction<R: Read, W: Write>(read: &mut R, write: &mut W) -> anyhow::R
 
 pub fn scanning<R: Read, W: Write>(read: &mut R, write: &mut W) -> anyhow::Result<()> {
     let path: PathBuf = read_message(read)?;
-    let one_filesystem: bool = read_message(read)?;
-    let exclusions: BTreeSet<PathBuf> = read_message(read)?;
-    let scan_result = scan(&path, one_filesystem, &exclusions)?;
+    let scan_result = scan(&path)?;
     write_message(write, &scan_result)?;
     write.flush()?;
     Ok(())
 }
 
+pub fn chunking<R: Read + Send + 'static, W: Write + Send + 'static>(
+    mut read: R,
+    write: W,
+) -> anyhow::Result<()> {
+    let path: PathBuf = read_message(&mut read)?;
+    let pointer_name: String = read_message(&mut read)?;
+    let tree_node: TreeNode = read_message(&mut read)?;
+    let parent: Option<String> = read_message(&mut read)?;
+
+    let (yama_requester, requester_join_handles) = Requester::new(read, write);
+
+    let raw_pile: Box<dyn RawPile> = Box::new(yama_requester);
+
+    let pile = Pile::new(raw_pile);
+
+    // TODO TODO progress
+    let progress_bar = &mut ();
+
+    yama::operations::storing::store_fully(
+        Arc::new(pile),
+        &path,
+        &pointer_name,
+        tree_node,
+        parent,
+        get_number_of_workers("YAMA_CHUNKERS"),
+        progress_bar,
+        true,
+    )?;
+
+    for join_handle in requester_join_handles {
+        join_handle.join().expect("Expected to join handle");
+    }
+
+    Ok(())
+}
+
 pub struct ProgressSender {
     pub last_sent: Instant,
     pub current_progress: u64,
@@ -61,7 +91,7 @@ pub struct ProgressSender {
 }
 
 impl ProgressSender {
-    pub fn send_now(&mut self, _include_message: bool) {
+    pub fn send_now(&mut self, include_message: bool) {
         self.sender
             .send((
                 RequestBody::Progress {
@@ -75,6 +105,7 @@ impl ProgressSender {
     }
 
     pub fn send_if_overdue(&mut self) {
+        //info!("send if overdue...");
         if Instant::now().duration_since(self.last_sent).as_millis() >= 1024 {
             self.send_now(false);
         }
@@ -98,17 +129,23 @@ impl ProgressTracker for ProgressSender {
     }
 }
 
-// TODO use io-streams crate and get rid of the duplication!!
-pub fn chunking_stdio() -> anyhow::Result<PartialPointerData> {
-    let (path, tree_node) = {
+pub fn chunking_stdio() -> anyhow::Result<()> {
+    let (path, pointer_name, tree_node, parent) = {
         let stdin = stdin();
         let mut read = stdin.lock();
         let path: PathBuf = read_message(&mut read)?;
+        let pointer_name: String = read_message(&mut read)?;
         let tree_node: TreeNode = read_message(&mut read)?;
-        (path, tree_node)
+        let parent: Option<String> = read_message(&mut read)?;
+        (path, pointer_name, tree_node, parent)
     };
 
-    let (pointer_data, requester_join_handles) = {
+    info!(
+        "Have pointer_name = {:?}, parent = {:?}",
+        pointer_name, parent
+    );
+
+    let requester_join_handles = {
         let (yama_requester, requester_join_handles) = Requester::new_from_stdio();
         let command_sender = yama_requester.clone_command_sender();
         info!("progress sender in use");
@@ -124,15 +161,18 @@ pub fn chunking_stdio() -> anyhow::Result<PartialPointerData> {
 
         let pile = Pile::new(raw_pile);
 
-        let pointer_data = yama::operations::storing::store_without_pointer_ops(
-            &Arc::new(pile),
+        yama::operations::storing::store_fully(
+            Arc::new(pile),
             &path,
+            &pointer_name,
             tree_node,
+            parent,
             get_number_of_workers("YAMA_CHUNKERS"),
             &mut progress_bar,
+            true,
         )?;
 
-        (pointer_data, requester_join_handles)
+        requester_join_handles
     };
 
     info!("Waiting to join.");
@@ -143,7 +183,20 @@ pub fn chunking_stdio() -> anyhow::Result<PartialPointerData> {
 
     info!("Chunking completed.");
 
-    Ok(pointer_data)
+    Ok(())
+}
+
+pub fn handler<R: Read + Send + 'static, W: Write + Send + 'static>(
+    mut read: R,
+    mut write: W,
+) -> anyhow::Result<()> {
+    introduction(&mut read, &mut write)?;
+
+    scanning(&mut read, &mut write)?;
+
+    chunking(read, write)?;
+
+    Ok(())
 }
 
 pub fn handler_stdio() -> anyhow::Result<()> {
@@ -166,11 +219,9 @@ pub fn handler_stdio() -> anyhow::Result<()> {
                 info!("Chunking.");
                 drop(read);
                 drop(write);
-                let pointer_data = chunking_stdio()?;
+                chunking_stdio()?;
                 read = stdin.lock();
                 write = stdout.lock();
-                write_message(&mut write, &pointer_data)?;
-                write.flush()?;
             }
             "exit" => {
                 write_message(&mut write, &"exit")?;

datman/src/tree.rs

@@ -15,16 +15,16 @@ You should have received a copy of the GNU General Public License
 along with Yama.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-use std::collections::{BTreeMap, BTreeSet};
+use std::collections::BTreeMap;
 use std::fmt::Debug;
 use std::fs::{read_link, symlink_metadata, DirEntry, Metadata};
 use std::io::ErrorKind;
 use std::os::unix::fs::MetadataExt;
-use std::path::{Path, PathBuf};
+use std::path::Path;
 
 use anyhow::anyhow;
 use indicatif::{ProgressBar, ProgressDrawTarget, ProgressStyle};
-use log::{debug, info, warn};
+use log::warn;
 use serde::{Deserialize, Serialize};
 
 pub use yama::definitions::FilesystemOwnership;
@@ -216,18 +216,12 @@ pub fn mtime_msec(metadata: &Metadata) -> u64 {
 }
 
 /// Scan the filesystem to produce a Tree, using a default progress bar.
-pub fn scan(
-    path: &Path,
-    one_filesystem: bool,
-    exclusions: &BTreeSet<PathBuf>,
-) -> anyhow::Result<Option<FileTree<(), (), (), ()>>> {
+pub fn scan(path: &Path) -> anyhow::Result<Option<FileTree<(), (), (), ()>>> {
     let pbar = ProgressBar::with_draw_target(0, ProgressDrawTarget::stdout_with_hz(2));
     pbar.set_style(ProgressStyle::default_spinner().template("{spinner} {pos:7} {msg}"));
     pbar.set_message("dir scan");
 
-    let one_filesystem = if one_filesystem { Some(None) } else { None };
-
-    let result = scan_with_progress_bar(path, &pbar, one_filesystem, exclusions);
+    let result = scan_with_progress_bar(path, &pbar);
     pbar.finish_at_current_pos();
     result
 }
@@ -236,15 +230,7 @@ pub fn scan(
 pub fn scan_with_progress_bar(
     path: &Path,
     progress_bar: &ProgressBar,
-    mut one_filesystem: Option<Option<u64>>,
-    exclusions: &BTreeSet<PathBuf>,
 ) -> anyhow::Result<Option<FileTree<(), (), (), ()>>> {
-    if exclusions.contains(path) {
-        // Don't enter excluded paths.
-        debug!("Not descending into excluded path: {:?}", path);
-        return Ok(None);
-    }
-
     let metadata_res = symlink_metadata(path);
     progress_bar.inc(1);
     if let Err(e) = &metadata_res {
@@ -263,14 +249,6 @@ pub fn scan_with_progress_bar(
     let metadata = metadata_res?;
     let filetype = metadata.file_type();
 
-    if let Some(one_filesystem) = one_filesystem.as_mut() {
-        let this_fs = metadata.dev();
-        if *one_filesystem.get_or_insert(this_fs) != this_fs {
-            info!("Stopping at filesystem boundary: {:?}", path);
-            return Ok(None);
-        }
-    }
-
     /*let name = path
     .file_name()
     .ok_or(anyhow!("No filename, wat"))?
@@ -316,23 +294,15 @@ pub fn scan_with_progress_bar(
 
         for entry in dir_read? {
             let entry: DirEntry = entry?;
-
-            if entry.file_name() == ".datmanskip" {
-                // Directories with .datmanskip in them are to be skipped entirely.
-                // TODO(perf): should this be checked upfront before some children may already
-                //     have been scanned?
-                debug!("Skipping {path:?} because it has a .datmanskip file.");
-                return Ok(None);
-            }
-
-            let scanned =
-                scan_with_progress_bar(&entry.path(), progress_bar, one_filesystem, exclusions)?;
+            let scanned = scan_with_progress_bar(&entry.path(), progress_bar)?;
             if let Some(scanned) = scanned {
-                if let Ok(filename) = entry.file_name().into_string() {
-                    children.insert(filename, scanned);
-                } else {
-                    warn!("Non-UTF-8 filename; ignoring: {:?}", entry.file_name())
-                }
+                children.insert(
+                    entry
+                        .file_name()
+                        .into_string()
+                        .expect("OsString not String"),
+                    scanned,
+                );
             }
         }
 

flake.lock

@@ -1,177 +0,0 @@
-{
-  "nodes": {
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1710146030,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
-    "naersk": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1662220400,
-        "narHash": "sha256-9o2OGQqu4xyLZP9K6kNe1pTHnyPz0Wr3raGYnr9AIgY=",
-        "owner": "nix-community",
-        "repo": "naersk",
-        "rev": "6944160c19cb591eb85bbf9b2f2768a935623ed3",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "naersk",
-        "type": "github"
-      }
-    },
-    "nix-github-actions": {
-      "inputs": {
-        "nixpkgs": [
-          "poetry2nix",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1703863825,
-        "narHash": "sha256-rXwqjtwiGKJheXB43ybM8NwWB8rO2dSRrEqes0S7F5Y=",
-        "owner": "nix-community",
-        "repo": "nix-github-actions",
-        "rev": "5163432afc817cf8bd1f031418d1869e4c9d5547",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "nix-github-actions",
-        "type": "github"
-      }
-    },
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1714971268,
-        "narHash": "sha256-IKwMSwHj9+ec660l+I4tki/1NRoeGpyA2GdtdYpAgEw=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "27c13997bf450a01219899f5a83bd6ffbfc70d3c",
-        "type": "github"
-      },
-      "original": {
-        "id": "nixpkgs",
-        "ref": "nixos-23.11",
-        "type": "indirect"
-      }
-    },
-    "poetry2nix": {
-      "inputs": {
-        "flake-utils": "flake-utils",
-        "nix-github-actions": "nix-github-actions",
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "systems": "systems_2",
-        "treefmt-nix": "treefmt-nix"
-      },
-      "locked": {
-        "lastModified": 1715017507,
-        "narHash": "sha256-RN2Vsba56PfX02DunWcZYkMLsipp928h+LVAWMYmbZg=",
-        "owner": "nix-community",
-        "repo": "poetry2nix",
-        "rev": "e6b36523407ae6a7a4dfe29770c30b3a3563b43a",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "poetry2nix",
-        "type": "github"
-      }
-    },
-    "root": {
-      "inputs": {
-        "naersk": "naersk",
-        "nixpkgs": "nixpkgs",
-        "poetry2nix": "poetry2nix",
-        "utils": "utils"
-      }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    },
-    "systems_2": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "id": "systems",
-        "type": "indirect"
-      }
-    },
-    "treefmt-nix": {
-      "inputs": {
-        "nixpkgs": [
-          "poetry2nix",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1714058656,
-        "narHash": "sha256-Qv4RBm4LKuO4fNOfx9wl40W2rBbv5u5m+whxRYUMiaA=",
-        "owner": "numtide",
-        "repo": "treefmt-nix",
-        "rev": "c6aaf729f34a36c445618580a9f95a48f5e4e03f",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "treefmt-nix",
-        "type": "github"
-      }
-    },
-    "utils": {
-      "locked": {
-        "lastModified": 1659877975,
-        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    }
-  },
-  "root": "root",
-  "version": 7
-}

flake.nix

@@ -1,92 +0,0 @@
-{
-  description = "Yama and Datman";
-
-  inputs = {
-    utils.url = "github:numtide/flake-utils";
-    naersk = {
-      url = "github:nix-community/naersk";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-    nixpkgs.url = "nixpkgs/nixos-23.11";
-    poetry2nix = {
-      url = "github:nix-community/poetry2nix";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-  };
-
-  outputs = { self, nixpkgs, utils, naersk, poetry2nix }:
-    utils.lib.eachDefaultSystem (system: let
-      pkgs = nixpkgs.legacyPackages."${system}";
-      inherit (poetry2nix.lib.mkPoetry2Nix { inherit pkgs; }) mkPoetryApplication;
-      naersk-lib = naersk.lib."${system}";
-
-      rustComponents = naersk-lib.buildPackage {
-        pname = "yama";
-        root = ./.;
-
-        buildInputs = with pkgs; [
-          openssl
-          pkg-config
-          sqlite
-        ];
-      };
-
-      mysqlHelper = mkPoetryApplication {
-        projectDir = ./datman-helper-mysql;
-      };
-
-      postgresHelper = mkPoetryApplication {
-        projectDir = ./datman-helper-postgres;
-      };
-
-      # We want to produce a package with all of these together, with wrappers that let them
-      # refer to each other by name (i.e. have each other on the path).
-      # Datman needs the helpers on the path.
-      # The helpers need lz4 on the path.
-      allInOne = pkgs.stdenv.mkDerivation {
-        name = "datman-aio";
-
-        src = "${pkgs.emptyDirectory}";
-
-        installPhase = ''
-          # set -eu
-          mkdir $out $out/bin
-          ln -s ${rustComponents}/bin/{yama,datman} $out/bin
-          ln -s ${mysqlHelper}/bin/datman-helper-mysql-{backup,restore} $out/bin
-          ln -s ${postgresHelper}/bin/datman-helper-postgres-{backup,restore} $out/bin
-          ln -s ${pkgs.lz4}/bin/lz4 $out/bin/
-          runHook postInstall
-        '';
-
-        buildInputs = [ pkgs.makeWrapper ];
-
-        postInstall = ''
-          # set -eu
-          for fn in $out/bin/{datman,yama,datman-helper-{mysql,postgres}-{backup,restore}}; do
-            wrapProgram $fn --suffix PATH : $out/bin
-          done
-        '';
-      };
-    in rec {
-      # `nix build`
-      packages.yama = allInOne;
-
-      defaultPackage = packages.yama;
-
-      # NixOS Modules
-#       nixosModules = {
-#         yama = import ./nixos_modules/yama.nix self;
-#       };
-
-      # `nix run`
-      apps.yama = utils.lib.mkApp {
-        drv = rustComponents;
-      };
-      defaultApp = apps.yama;
-
-      # `nix develop`
-      devShell = pkgs.mkShell {
-        nativeBuildInputs = with pkgs; [ rustc cargo ];
-      };
-    });
-}

scripts-dev/lint.sh

@@ -4,7 +4,7 @@ if [ $# -ge 1 ]
 then
   files=$*
 else
-  files="testsuite/setup.py testsuite/datmantests testsuite/helpers testsuite/yamatests datman-helper-postgres/datman_helper_postgres datman-helper-mysql/datman_helper_mysql"
+  files="testsuite/setup.py testsuite/datmantests testsuite/helpers testsuite/yamatests datman-helper-postgres/datman_helper_postgres datman-helper-postgres/setup.py datman-helper-mysql/datman_helper_mysql datman-helper-mysql/setup.py"
 fi
 
 echo "Linting these locations: $files"

shell.nix

@@ -1,50 +0,0 @@
-{ pkgs ? import <nixpkgs> {} }:
-
-let
-  # We may need some packages from nixpkgs-unstable
-  #unstable = import <nixpkgs-unstable> {};
-
-  rust-toolchain = pkgs.symlinkJoin {
-    name = "rust-toolchain";
-    paths = [pkgs.rustc pkgs.cargo pkgs.rustfmt pkgs.rustPlatform.rustcSrc];
-  };
-in
-
-pkgs.mkShell {
-
-  buildInputs = [
-    rust-toolchain
-
-    pkgs.pkg-config
-
-    pkgs.alsa-lib
-    pkgs.sqlite
-    #pkgs.libclang # ??
-  ];
-
-  nativeBuildInputs = [
-    pkgs.openssl
-    pkgs.python3
-  ];
-
-  # Needed for bindgen when binding to avahi
-  LIBCLANG_PATH="${pkgs.llvmPackages_latest.libclang.lib}/lib";
-
-  # Cargo culted:
-  # Add to rustc search path
-  RUSTFLAGS = (builtins.map (a: ''-L ${a}/lib'') [
-  ]);
-  # Add to bindgen search path
-  BINDGEN_EXTRA_CLANG_ARGS =
-    # Includes with normal include path
-    (builtins.map (a: ''-I"${a}/include"'') [
-    ])
-    # Includes with special directory paths
-    ++ [
-      ''-I"${pkgs.llvmPackages_latest.libclang.lib}/lib/clang/${pkgs.llvmPackages_latest.libclang.version}/include"''
-      #''-I"${pkgs.glib.dev}/include/glib-2.0"''
-      #''-I${pkgs.glib.out}/lib/glib-2.0/include/''
-    ];
-
-
-}

testsuite/datmantests/test_backup_and_extract.py

@@ -251,8 +251,7 @@ kind = {{ stdout = "blahblah.txt" }}
         seed = 7555
         print(f"seed: {seed}")
         rng.seed(seed)
-        # min_files is 8 because we need enough files to use each label for this
-        # test to succeed.
+        # min_files is 8 because we need enough files to use each label for this test to succeed.
         initial_descriptor, _ = generate_random_dir(rng, src_path, 32, min_files=8)
         labellings = generate_labels(initial_descriptor, rng)
         save_labelling_rules(labelling_path.joinpath("srca.zst"), labellings)
@@ -299,81 +298,3 @@ kind = {{ stdout = "blahblah.txt" }}
             )
 
         td.cleanup()
-
-    def test_backup_incremental_with_mid_delete(self):
-        td = TemporaryDirectory("test_backup_incremental_with_mid_delete")
-        tdpath = Path(td.name)
-
-        datman_path = tdpath.joinpath("datman")
-        src_path = datman_path.joinpath("srca")
-        yama_path = datman_path.joinpath("main")
-
-        set_up_simple_datman(datman_path)
-        set_up_simple_yama(yama_path)
-
-        rng = Random()
-        seed = rng.randint(0, 9001)
-        print(f"seed: {seed}")
-        rng.seed(seed)
-        initial_descriptor, _ = generate_random_dir(rng, src_path, 32)
-
-        print("storing")
-        subprocess.check_call(("datman", "backup-one", "srca", "main"), cwd=datman_path)
-
-        # now mutate and store incremental
-        randomly_mutate_directory_in_descriptor(initial_descriptor, src_path, rng)
-        time.sleep(2)
-        subprocess.check_call(("datman", "backup-one", "srca", "main"), cwd=datman_path)
-
-        # now mutate and store incremental again!
-        randomly_mutate_directory_in_descriptor(initial_descriptor, src_path, rng)
-        mutated_descriptor = scan_dir(src_path)
-        time.sleep(2)
-        subprocess.check_call(("datman", "backup-one", "srca", "main"), cwd=datman_path)
-
-        pointer_names = [
-            line
-            for line in subprocess.check_output(("yama", "debug", "lsp"), cwd=yama_path)
-            .decode()
-            .split("\n")
-            if line
-        ]
-        self.assertEqual(len(pointer_names), 3)
-        self.assertLess(pointer_names[0], pointer_names[1])
-        self.assertLess(pointer_names[1], pointer_names[2])
-
-        print(f"removing mid pointer {pointer_names[1]}")
-        subprocess.check_call(
-            ("yama", "debug", "rmp", pointer_names[1]),
-            cwd=yama_path,
-        )
-
-        print("extracting last pointer to check still valid")
-        dest_path = tdpath.joinpath("desta")
-        subprocess.check_call(
-            (
-                "datman",
-                "extract",
-                "--skip-metadata",
-                "--accept-partial",
-                "main",
-                "../desta",
-            ),
-            cwd=datman_path,
-        )
-
-        # this will be wrapped in a directory that starts with the name srca+
-        extracted_dir_descriptor_wrapper = scan_dir(dest_path)
-
-        contents = extracted_dir_descriptor_wrapper.contents
-        self.assertEqual(len(contents), 1)
-        key, value = next(iter(contents.items()))
-        self.assertTrue(key.startswith("srca+"))
-
-        self.assertIsInstance(value, DirectoryDescriptor)
-        key, value = next(iter(value.contents.items()))
-        self.assertEqual(key, "srca")
-
-        self.assertEqual(value.ignore_metadata(), mutated_descriptor.ignore_metadata())
-
-        td.cleanup()

testsuite/helpers/yama_helpers.py

@@ -1,7 +1,6 @@
 import shutil
 import subprocess
 from pathlib import Path
-from typing import Set
 
 
 def set_up_simple_yama(path: Path):
@@ -11,13 +10,3 @@ def set_up_simple_yama(path: Path):
         "example_zstd.dict"
     )
     shutil.copyfile(example_zstd_path, path.joinpath("important_zstd.dict"))
-
-
-def list_bloblog_ids(pile: Path) -> Set[int]:
-    result = set()
-    for p in pile.joinpath("bloblog").iterdir():
-        try:
-            result.add(int(p.name))
-        except ValueError:
-            pass
-    return result

testsuite/setup.py

@@ -22,7 +22,7 @@ REQUIRED = ["green", "attrs", "immutabledict"]
 
 
 # What packages are optional?
-EXTRAS = {"dev": ["black==22.10.0", "flake8==3.9.2", "isort==5.9.2"]}
+EXTRAS = {"dev": ["black==21.7b0", "flake8==3.9.2", "isort==5.9.2"]}
 
 # The rest you shouldn't have to touch too much :)
 # ------------------------------------------------

testsuite/yamatests/test_compact.py

@@ -1,175 +0,0 @@
-import subprocess
-from pathlib import Path
-from random import Random
-from tempfile import TemporaryDirectory
-from unittest import TestCase
-
-from helpers import (
-    DirectoryDescriptor,
-    generate_random_dir,
-    randomly_mutate_directory_in_descriptor,
-    scan_dir,
-)
-from helpers.datman_helpers import set_up_simple_datman
-from helpers.yama_helpers import list_bloblog_ids, set_up_simple_yama
-
-
-class TestYamaCompact(TestCase):
-    def test_compaction_merge_two_small_bloblogs(self):
-        td = TemporaryDirectory("test_check_fails_after_random_corruption")
-        tdpath = Path(td.name)
-
-        datman_path = tdpath.joinpath("datman")
-        src_path = datman_path.joinpath("srca")
-        yama_path = datman_path.joinpath("main")
-
-        set_up_simple_datman(datman_path)
-        set_up_simple_yama(yama_path)
-
-        rng = Random()
-        seed = rng.randint(0, 9001)
-        print(f"seed: {seed}")
-        rng.seed(seed)
-        later_expected_descriptor, _ = generate_random_dir(rng, src_path, 32)
-
-        # Back up twice: that way we should get at least two bloblogs!
-        subprocess.check_call(("datman", "backup-one", "srca", "main"), cwd=datman_path)
-        subprocess.check_call(("datman", "backup-one", "srca", "main"), cwd=datman_path)
-        old_bloblog_ids = list_bloblog_ids(yama_path)
-        self.assertGreater(
-            len(old_bloblog_ids), 1, "Should be many bloblogs at this point"
-        )
-
-        subprocess.check_call(
-            (
-                "yama",
-                "compact",
-                "--mergeable",
-                "2",
-                "--small",
-                str(2 * 1024 * 1024 * 1024),
-            ),
-            cwd=yama_path,
-        )
-
-        new_bloblog_ids = list_bloblog_ids(yama_path)
-        self.assertEqual(
-            len(new_bloblog_ids), 1, "Should only be 1 bloblog at this point."
-        )
-        self.assertEqual(
-            list(new_bloblog_ids)[0],
-            max(old_bloblog_ids) + 1,
-            "New bloblog ID should be 1 greater than the max old one.",
-        )
-
-    def test_gc_then_compact(self):
-        td = TemporaryDirectory("test_gc_then_compact")
-        tdpath = Path(td.name)
-
-        datman_path = tdpath.joinpath("datman")
-        src_path = datman_path.joinpath("srca")
-        yama_path = datman_path.joinpath("main")
-
-        set_up_simple_datman(datman_path)
-        set_up_simple_yama(yama_path)
-
-        rng = Random()
-        seed = rng.randint(0, 9001)
-        print(f"seed: {seed}")
-        rng.seed(seed)
-        initial_descriptor, _ = generate_random_dir(rng, src_path, 32)
-
-        subprocess.check_call(("datman", "backup-one", "srca", "main"), cwd=datman_path)
-        orig_pointer_name = (
-            subprocess.check_output(("yama", "debug", "lsp"), cwd=yama_path)
-            .decode()
-            .split("\n")[0]
-        )
-
-        randomly_mutate_directory_in_descriptor(initial_descriptor, src_path, rng)
-        mutated_descriptor = scan_dir(src_path)
-
-        subprocess.check_call(("datman", "backup-one", "srca", "main"), cwd=datman_path)
-
-        old_bloblog_ids = list_bloblog_ids(yama_path)
-
-        # Try a GC and check that it's a no-op
-        subprocess.check_call(
-            ("yama", "check", "--shallow", "--apply-gc"), cwd=yama_path
-        )
-        subprocess.check_call(
-            (
-                "yama",
-                "compact",
-                "--mergeable",
-                "2000",
-                "--reclaim",
-                "1",
-                "--max-dealloc",
-                "1",
-            ),
-            cwd=yama_path,
-        )
-
-        unchanged_bloblog_ids = list_bloblog_ids(yama_path)
-        self.assertEqual(
-            old_bloblog_ids,
-            unchanged_bloblog_ids,
-            "No GC: no compaction should have happened.",
-        )
-
-        subprocess.check_call(
-            ("yama", "debug", "rmp", orig_pointer_name), cwd=yama_path
-        )
-
-        # Try a GC and check that it did something
-        subprocess.check_call(
-            ("yama", "check", "--shallow", "--apply-gc"), cwd=yama_path
-        )
-        subprocess.check_call(
-            (
-                "yama",
-                "compact",
-                "--mergeable",
-                "2000",
-                "--reclaim",
-                "1",
-                "--max-dealloc",
-                "1",
-            ),
-            cwd=yama_path,
-        )
-
-        new_bloblog_ids = list_bloblog_ids(yama_path)
-        self.assertNotEqual(
-            old_bloblog_ids, new_bloblog_ids, "GC: compaction should have happened."
-        )
-
-        # Check that we can still extract the files!
-        dest_path = tdpath.joinpath("desta")
-        subprocess.check_call(
-            (
-                "datman",
-                "extract",
-                "--skip-metadata",
-                "--accept-partial",
-                "main",
-                "../desta",
-            ),
-            cwd=datman_path,
-        )
-
-        extracted_dir_descriptor_wrapper = scan_dir(dest_path)
-
-        contents = extracted_dir_descriptor_wrapper.contents
-        self.assertEqual(len(contents), 1)
-        key, value = next(iter(contents.items()))
-        self.assertTrue(key.startswith("srca+"))
-
-        self.assertIsInstance(value, DirectoryDescriptor)
-        key, value = next(iter(value.contents.items()))
-        self.assertEqual(key, "srca")
-
-        self.assertEqual(value.ignore_metadata(), mutated_descriptor.ignore_metadata())
-
-        td.cleanup()

yama/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "yama"
-version = "0.6.0-alpha.5"
+version = "0.5.0-alpha.2"
 authors = ["Olivier 'reivilibre' <olivier@librepush.net>"]
 edition = "2018"
 description = "Deduplicated, compressed and encrypted content pile manager"
@@ -11,10 +11,11 @@ license = "GPL-3.0-or-later"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-fastcdc = "1.0.6"
-zstd = "0.11.2"  # 0.11.2+zstd.1.5.2
-clap = { version = "3.1.18", features = ["derive"] }
-blake = "2.0.2"
+fastcdc = "1.0.2"
+zstd = "0.6.0"  # 0.6.0+zstd.1.4.8
+sshish = "0.1.0"
+clap = "= 3.0.0-beta.5"
+blake = "2.0.0"
 twox-hash = "1.5.0"
 serde = { version = "1.0.104", features = ["derive"] }
 serde_bare = "0.3.0"
@@ -38,8 +39,7 @@ rusqlite = "0.24.2"
 chrono = "0.4.19"
 rustyline = "7.1.0"
 derivative = "2.2.0"
-metrics = "0.17.1"
-
+metrics = "0.17.0"
 
 [dev-dependencies]
 temp-dir = "0.1.11"

yama/src/bin/yama.rs

@@ -18,24 +18,21 @@ along with Yama.  If not, see <https://www.gnu.org/licenses/>.
 use std::path::{Path, PathBuf};
 
 use anyhow::{bail, Context};
+use clap::{crate_authors, crate_description, crate_version, Parser};
 use log::info;
 
-use clap::Parser;
 use env_logger::Env;
 use std::sync::Arc;
 use yama::commands::{fully_integrate_pointer_node, load_pile_descriptor, open_pile};
 use yama::debug::{debug_command, DebugCommand};
 use yama::operations::checking::VacuumMode;
-use yama::operations::legacy_pushpull::{
-    determine_bypass_level, open_pile_with_work_bypass, push_to,
-};
-use yama::operations::{checking, cleanup, extracting};
-use yama::pile::local_sqlitebloblogs::CompactionThresholds;
+use yama::operations::pushpull::{determine_bypass_level, open_pile_with_work_bypass, push_to};
+use yama::operations::{checking, extracting};
 use yama::pile::{Pile, PileDescriptor, RawPile};
 use yama::{commands, debug};
 
 #[derive(Parser)]
-#[clap(version = env!("CARGO_PKG_VERSION"), author = env!("CARGO_PKG_AUTHORS"), about = env!("CARGO_PKG_DESCRIPTION"))]
+#[clap(version = crate_version!(), author = crate_authors!(), about = crate_description!())]
 struct Opts {
     /// Chooses a different pile to be the working pile.
     /// If specified, must be the name of a remote in yama.toml.
@@ -57,9 +54,8 @@ enum PileCommand {
         pointer_name: String,
 
         /// Limited expression(s) of files to retrieve.
-        /// LIMITATION OF CURRENT VERSION: ONLY ONE EXACT PATH ALLOWED, PLEASE.
         #[clap(short, long)]
-        subset: Option<String>,
+        subset: Vec<PathBuf>,
 
         destination: PathBuf,
 
@@ -84,29 +80,6 @@ enum PileCommand {
         shallow: bool,
     },
 
-    Compact {
-        /// Don't actually perform any compaction; just plan it out.
-        #[clap(long)]
-        dry_run: bool,
-
-        /// Allocated size under which a bloblog is considered small.
-        #[clap(long = "small")]
-        small_thresh: Option<u64>,
-
-        /// Minimum amount of space to reclaim in order to run compaction for reclaim.
-        #[clap(long = "reclaim")]
-        min_reclaim: Option<u64>,
-
-        /// Maximum amount of space that can be deallocated in a bloblog before we consider it
-        /// worthwhile to replace.
-        #[clap(long = "max-dealloc")]
-        max_deallocated: Option<u64>,
-
-        /// Minimum number of mergeable small bloblogs in order to run compaction for merge.
-        #[clap(long)]
-        mergeable: Option<u32>,
-    },
-
     /// Enter a debug prompt for manually operating on the yama pile.
     Debug { supplied_command: Vec<String> },
 
@@ -161,25 +134,10 @@ fn wrapped_main() -> anyhow::Result<i32> {
 
             fully_integrate_pointer_node(&pile, &mut root_tree_node.node, &mut pointer)?;
 
-            let mut node_to_extract = &mut root_tree_node.node;
-
-            if let Some(subset) = subset {
-                for path_to_descend in subset.split('/').filter(|s| !s.is_empty()) {
-                    match node_to_extract.child(path_to_descend) {
-                        Ok(new_node) => {
-                            node_to_extract = new_node;
-                        }
-                        Err(msg) => {
-                            bail!("Can't descend into {path_to_descend:?}: {msg}");
-                        }
-                    }
-                }
-            }
-
             // todo allow disabling apply metadata
             extracting::extract(
                 destination,
-                node_to_extract,
+                &mut root_tree_node.node,
                 &pile,
                 true,
                 workers.unwrap_or(2),
@@ -215,29 +173,6 @@ fn wrapped_main() -> anyhow::Result<i32> {
                 return Ok(1);
             }
         }
-        PileCommand::Compact {
-            dry_run,
-            small_thresh,
-            min_reclaim,
-            max_deallocated,
-            mergeable,
-        } => {
-            let this_dir = Path::new(".");
-            let descriptor =
-                load_pile_descriptor(this_dir).context("Failed to load pile descriptor")?;
-            cleanup::compact(
-                this_dir,
-                &descriptor,
-                !*dry_run,
-                true,
-                CompactionThresholds {
-                    minimum_to_reclaim: min_reclaim.unwrap_or(2 * 1024 * 1024 * 1024),
-                    minimum_small_bloblogs_to_merge: mergeable.unwrap_or(64),
-                    cond_if_more_deallocated_than: max_deallocated.unwrap_or(256 * 1024 * 1024),
-                    cond_if_less_allocated_than: small_thresh.unwrap_or(64 * 1024 * 1024),
-                },
-            )?;
-        }
         PileCommand::Init {} => {
             commands::init(".".as_ref())?;
         }

yama/src/chunking.rs

@@ -161,8 +161,6 @@ impl<'cst, CST: ChunkSubmissionTarget> Write for RecursiveChunker<'cst, CST> {
 
 #[inline]
 pub fn calculate_chunkid(chunk: &[u8]) -> ChunkId {
-    // TODO(newver) Allow pluggable chunkID calculations so that encrypted storage can work without
-    //              leaking contents.
     let mut chunk_id: ChunkId = Default::default();
     blake::hash(256, &chunk, &mut chunk_id).expect("BLAKE problem");
     chunk_id

yama/src/commands.rs

@@ -22,6 +22,7 @@ use std::path::Path;
 use std::sync::Arc;
 
 use anyhow::{anyhow, bail, Context};
+use clap::crate_version;
 use log::warn;
 
 use crate::chunking::{RecursiveChunker, RecursiveUnchunker, SENSIBLE_THRESHOLD};
@@ -47,7 +48,7 @@ pub fn init(dir: &Path) -> anyhow::Result<()> {
     let mut file = File::create(yama_toml)?;
 
     let desc = PileDescriptor {
-        yama_version: env!("CARGO_PKG_VERSION").to_owned(),
+        yama_version: crate_version!().to_owned(),
         storage: PileStorage::SqliteIndexedBloblog,
         compression: Some(12),
     };

yama/src/debug.rs

@@ -15,12 +15,13 @@ You should have received a copy of the GNU General Public License
 along with Yama.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-use crate::commands::retrieve_tree_node;
+use crate::commands::{fully_integrate_pointer_node, retrieve_tree_node, store_tree_node};
 use crate::definitions::{FilesystemOwnership, FilesystemPermissions, TreeNode};
-use crate::operations::remove_pointer_safely;
 use crate::pile::{Pile, PileDescriptor, RawPile};
+use crate::tree::integrate_node_in_place;
 use anyhow::anyhow;
 use clap::Parser;
+use log::info;
 use rustyline::error::ReadlineError;
 use rustyline::Editor;
 
@@ -122,7 +123,50 @@ pub fn debug_command<RP: RawPile>(
             }
         }
         DebugCommand::DeletePointer { name } => {
-            remove_pointer_safely(pile, name)?;
+            // retrieve this pointer
+            let mut this_pointer = pile.read_pointer(name.as_str())?.ok_or_else(|| {
+                anyhow!("Pointer {:?} does not exist so can not be deleted.", name)
+            })?;
+            let mut this_node = retrieve_tree_node(&pile, this_pointer.chunk_ref.clone())?;
+
+            // fully integrate the pointer
+            fully_integrate_pointer_node(&pile, &mut this_node.node, &mut this_pointer)?;
+            assert!(this_pointer.parent_pointer.is_none());
+
+            // now integrate any pointers that rely on this one
+            // so that they no longer rely on this one.
+            for pointer in pile.list_pointers()?.iter() {
+                if pointer == name {
+                    continue;
+                }
+                if let Some(mut pointer_data) = pile.read_pointer(pointer.as_str())? {
+                    if let Some(parent_pointer) = pointer_data.parent_pointer.as_ref() {
+                        if parent_pointer == name {
+                            info!("Pointer is now an orphan: {:?}", pointer);
+
+                            // need to integrate this node, so retrieve it
+                            let mut node = retrieve_tree_node(&pile, pointer_data.chunk_ref)?;
+
+                            // integrate it in-place
+                            integrate_node_in_place(&mut node.node, &this_node.node)?;
+
+                            // mark it as orphaned (no parent)
+                            pointer_data.parent_pointer = None;
+
+                            // store the orphaned node
+                            let new_chunk_ref = store_tree_node(&pile, &node)?;
+                            // associate the orphaned node with the orphaned pointer
+                            pointer_data.chunk_ref = new_chunk_ref;
+                            // write the pointer back.
+                            pile.write_pointer(pointer.as_str(), &pointer_data)?;
+                        }
+                    }
+                }
+            }
+
+            // then delete the pointer
+            pile.delete_pointer(name)?;
+            info!("Deleted pointer: {:?}", name);
         }
         DebugCommand::PointerInfo { name } => {
             let this_pointer = pile

yama/src/definitions.rs

@@ -35,24 +35,6 @@ pub struct PointerData {
     pub gid_lookup: BTreeMap<u16, Option<String>>,
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct PartialPointerData {
-    pub chunk_ref: RecursiveChunkRef,
-    pub uid_lookup: BTreeMap<u16, Option<String>>,
-    pub gid_lookup: BTreeMap<u16, Option<String>>,
-}
-
-impl PartialPointerData {
-    pub fn complete(self, parent_pointer: Option<String>) -> PointerData {
-        PointerData {
-            chunk_ref: self.chunk_ref,
-            parent_pointer,
-            uid_lookup: self.uid_lookup,
-            gid_lookup: self.gid_lookup,
-        }
-    }
-}
-
 #[derive(Clone, Serialize, Deserialize, PartialEq, Eq, Hash)]
 pub struct RecursiveChunkRef {
     /// The root Chunk ID.
@@ -270,19 +252,6 @@ impl TreeNode {
             }
         }
     }
-
-    /// Recurses into a child by name, or returns Err with a reason.
-    pub fn child(&mut self, name: &str) -> Result<&mut TreeNode, &'static str> {
-        match self {
-            TreeNode::NormalFile { .. } => Err("not a directory: normal file"),
-            TreeNode::Directory { children, .. } => match children.get_mut(name) {
-                None => Err("child not in directory"),
-                Some(node) => Ok(node),
-            },
-            TreeNode::SymbolicLink { .. } => Err("not a directory: symlink"),
-            TreeNode::Deleted => Err("not a directory: deleted"),
-        }
-    }
 }
 
 #[derive(Debug, Copy, Clone, Serialize, Deserialize, PartialEq, Eq)]

yama/src/operations.rs

@@ -1,80 +1,4 @@
-use crate::commands::{fully_integrate_pointer_node, retrieve_tree_node, store_tree_node};
-use crate::pile::{Pile, RawPile};
-use crate::tree::{differentiate_node_in_place, integrate_node_in_place};
-use anyhow::{anyhow, Context};
-use log::info;
-
 pub mod checking;
-pub mod cleanup;
 pub mod extracting;
-pub mod legacy_pushpull;
+pub mod pushpull;
 pub mod storing;
-
-pub fn remove_pointer_safely<P: RawPile>(pile: &Pile<P>, name: &str) -> anyhow::Result<()> {
-    // retrieve this pointer
-    let mut this_pointer = pile
-        .read_pointer(name)?
-        .ok_or_else(|| anyhow!("Pointer {:?} does not exist so can not be deleted.", name))?;
-    let mut this_node = retrieve_tree_node(&pile, this_pointer.chunk_ref.clone())
-        .context("retrieving 'this' node")?;
-
-    let new_parent_name = this_pointer.parent_pointer.clone();
-    fully_integrate_pointer_node(pile, &mut this_node.node, &mut this_pointer)
-        .context("integrating new parent")?;
-
-    let new_parent = if let Some(ref new_parent_name) = new_parent_name {
-        let mut new_parent_pointer = pile
-            .read_pointer(new_parent_name.as_str())?
-            .ok_or_else(|| anyhow!("Parent pointer {:?} does not exist.", name))?;
-        let mut new_parent_node = retrieve_tree_node(&pile, new_parent_pointer.chunk_ref.clone())?;
-        fully_integrate_pointer_node(pile, &mut new_parent_node.node, &mut new_parent_pointer)?;
-        Some((new_parent_pointer, new_parent_node))
-    } else {
-        None
-    };
-
-    // now integrate any pointers that rely on this one
-    // so that they no longer rely on this one.
-    for pointer in pile.list_pointers()?.iter() {
-        if pointer == name {
-            continue;
-        }
-        if let Some(mut pointer_data) = pile.read_pointer(pointer.as_str())? {
-            if let Some(parent_pointer) = pointer_data.parent_pointer.as_ref() {
-                if parent_pointer == name {
-                    info!("Pointer would be orphaned: {:?}; integrating", pointer);
-
-                    // need to integrate this node, so retrieve it
-                    let mut node = retrieve_tree_node(&pile, pointer_data.chunk_ref)?;
-
-                    // integrate it in-place
-                    integrate_node_in_place(&mut node.node, &this_node.node)?;
-
-                    if let Some((_, ref new_parent_node)) = new_parent {
-                        // then differentiate with respect to the NEW parent
-                        differentiate_node_in_place(&mut node.node, &new_parent_node.node)?;
-                    }
-
-                    // pass through the parent
-                    pointer_data.parent_pointer = new_parent_name.clone();
-
-                    // store the updated version of the pointer
-                    let new_chunk_ref = store_tree_node(&pile, &node)?;
-                    // associate the new node with the new version of the pointer
-                    pointer_data.chunk_ref = new_chunk_ref;
-                    // write the pointer back.
-                    pile.write_pointer(pointer.as_str(), &pointer_data)?;
-
-                    // we must flush chunks before deleting the pointer
-                    pile.flush()
-                        .context("flushing after writing pointer back")?;
-                }
-            }
-        }
-    }
-
-    // then delete the pointer
-    pile.delete_pointer(name)?;
-    info!("Deleted pointer: {:?}", name);
-    Ok(())
-}

yama/src/operations/checking.rs

@@ -18,16 +18,12 @@ along with Yama.  If not, see <https://www.gnu.org/licenses/>.
 use crate::chunking::RecursiveUnchunker;
 use crate::commands::retrieve_tree_node;
 use crate::definitions::{ChunkId, TreeNode};
-use crate::pile::{
-    ControllerMessage, Keyspace, Pile, PipelineDescription, RawPile, StoragePipelineSettings,
-};
+use crate::pile::{ControllerMessage, Keyspace, Pile, RawPile, StoragePipelineSettings};
 use anyhow::bail;
 use crossbeam_channel::Sender;
 use indicatif::{ProgressBar, ProgressDrawTarget, ProgressStyle};
-use itertools::Itertools;
 use log::{error, info, warn};
 use std::collections::HashSet;
-use std::convert::TryInto;
 use std::io::{Read, Write};
 use std::sync::Mutex;
 
@@ -112,10 +108,6 @@ impl<RP: RawPile> RawPile for VacuumRawPile<RP> {
         self.underlying.delete(kind, key)
     }
 
-    fn delete_many(&self, kind: Keyspace, keys: &[&[u8]]) -> anyhow::Result<()> {
-        self.underlying.delete_many(kind, keys)
-    }
-
     fn list_keys(
         &self,
         kind: Keyspace,
@@ -139,14 +131,6 @@ impl<RP: RawPile> RawPile for VacuumRawPile<RP> {
         self.underlying
             .build_storage_pipeline(settings, controller_send)
     }
-
-    fn describe_pipeline(&self) -> anyhow::Result<Vec<PipelineDescription>> {
-        self.underlying.describe_pipeline()
-    }
-
-    fn chunk_id_transfer_ordering_hint(&self, chunk_id: &ChunkId) -> anyhow::Result<u64> {
-        self.underlying.chunk_id_transfer_ordering_hint(chunk_id)
-    }
 }
 
 /// Runs a full check of a Yama pile. This reads ALL the chunks, which can take a long time.
@@ -413,21 +397,9 @@ pub fn check_shallow<RP: RawPile>(
 
             // actually do the vacuum!
             info!("Going to vacuum them up.");
-            for vacuum_ids_chunk in to_vacuum
-                .into_iter()
-                .chunks(512)
-                .into_iter()
-                .map(|c| c.collect::<Vec<ChunkId>>())
-            {
-                pile.raw_pile.delete_many(
-                    Keyspace::Chunk,
-                    vacuum_ids_chunk
-                        .iter()
-                        .map(|ci| ci.as_slice())
-                        .collect::<Vec<&[u8]>>()
-                        .as_slice(),
-                )?;
-                pbar.inc(vacuum_ids_chunk.len().try_into().unwrap());
+            for vacuum_id in to_vacuum {
+                pile.raw_pile.delete(Keyspace::Chunk, &vacuum_id)?;
+                pbar.inc(1);
             }
             pile.flush()?;
             pbar.finish_and_clear();

yama/src/operations/cleanup.rs

@@ -1,64 +0,0 @@
-use crate::pile::local_sqlitebloblogs::{CompactionThresholds, SqliteBloblogPile};
-use crate::pile::{PileDescriptor, PileStorage};
-use anyhow::{bail, Context};
-use indicatif::{ProgressBar, ProgressDrawTarget, ProgressStyle};
-use log::info;
-use std::path::Path;
-
-pub fn compact(
-    pile_path: &Path,
-    pile_desc: &PileDescriptor,
-    actually_run: bool,
-    make_progress_bar: bool,
-    thresholds: CompactionThresholds,
-) -> anyhow::Result<()> {
-    let pbar = if make_progress_bar {
-        ProgressBar::with_draw_target(1000 as u64, ProgressDrawTarget::stdout_with_hz(10))
-    } else {
-        ProgressBar::hidden()
-    };
-    pbar.set_style(
-        ProgressStyle::default_bar()
-            .template("[{elapsed_precise}]/[{eta}] {bar:40.cyan/blue} {pos:>7}/{len:7} {msg}"),
-    );
-    pbar.set_message("compacting");
-
-    match pile_desc.storage {
-        PileStorage::SqliteIndexedBloblog => {
-            let bloblog_pile = SqliteBloblogPile::open(&pile_path)
-                .context("Failed to open SQLite-indexed Bloblog Pile")?;
-            compact_bloblogs(bloblog_pile, pbar, actually_run, thresholds)?;
-            Ok(())
-        }
-        other @ PileStorage::RemoteOnly => {
-            bail!("Cannot use compaction on this kind of pile: {other:?}!");
-        }
-    }
-}
-
-fn compact_bloblogs(
-    bloblog_pile: SqliteBloblogPile,
-    pbar: ProgressBar,
-    actually_run: bool,
-    thresholds: CompactionThresholds,
-) -> anyhow::Result<()> {
-    info!("=== Analysing for compaction ===");
-    let analysis = bloblog_pile.analyse_for_compaction()?;
-    let chunks_total: u64 = analysis.values().map(|bs| bs.chunks_total).sum();
-    let chunks_deleted: u64 = analysis.values().map(|bs| bs.chunks_deleted).sum();
-    let bytes_total: u64 = analysis.values().map(|bs| bs.bytes_total).sum();
-    let bytes_deleted: u64 = analysis.values().map(|bs| bs.bytes_deleted).sum();
-
-    info!("{} bloblogs in this pile, with {chunks_total} chunks ({bytes_total} B) of which {chunks_deleted} ({bytes_deleted} B) are deleted.", analysis.len());
-
-    info!("=== Planning compaction ===");
-    let plan = bloblog_pile.plan_compaction(&thresholds, analysis)?;
-    info!("Planned compaction: replace {} bloblogs (of which {} are small), freeing up {} B and rewriting {} B", plan.bloblogs_to_replace.len(), plan.small_bloblogs, plan.reclaimable_space, plan.bytes_to_write);
-
-    if actually_run {
-        info!("=== Compacting ===");
-        bloblog_pile.perform_compaction(Box::new(pbar), plan)?;
-    }
-
-    Ok(())
-}

yama/src/operations/pushpull.rs

@@ -2,7 +2,7 @@ use crate::chunking::RecursiveUnchunker;
 use crate::commands::fully_load_pointer;
 use crate::definitions::{ChunkId, RecursiveChunkRef, TreeNode};
 use crate::operations::checking::VacuumRawPile;
-use crate::operations::legacy_pushpull::PushWorkerToManagerMessage::{NewTask, TaskDone};
+use crate::operations::pushpull::PushWorkerToManagerMessage::{NewTask, TaskDone};
 use crate::pile::compression::{CompressionSettings, RawPileCompressor};
 use crate::pile::integrity::RawPileIntegrityChecker;
 use crate::pile::local_sqlitebloblogs::SqliteBloblogPile;

yama/src/operations/storing.rs

@@ -29,9 +29,7 @@ use log::{error, warn};
 use crate::chunking::{ChunkSubmissionTarget, RecursiveChunker, SENSIBLE_THRESHOLD};
 use crate::commands;
 use crate::commands::{fully_integrate_pointer_node, retrieve_tree_node};
-use crate::definitions::{
-    PartialPointerData, PointerData, RecursiveChunkRef, RootTreeNode, TreeNode,
-};
+use crate::definitions::{PointerData, RecursiveChunkRef, RootTreeNode, TreeNode};
 use crate::pile::{existence_checker_stage, Pile, RawPile, StoragePipelineSettings};
 use crate::progress::ProgressTracker;
 use crate::tree::{create_uidgid_lookup_tables, differentiate_node_in_place};
@@ -242,29 +240,7 @@ pub fn store_fully<PT: ProgressTracker>(
     parent: Option<String>,
     num_workers: u8,
     progress_bar: &mut PT,
-) -> anyhow::Result<()> {
-    pointer_ops_prepare_to_store(&pile, &mut root_node, &parent)?;
-    let pointer_data =
-        store_without_pointer_ops(&pile, &root_dir, root_node, num_workers, progress_bar)?
-            .complete(parent);
-    pointers_ops_after_store(&pile, &new_pointer_name, &pointer_data)?;
-    Ok(())
-}
-
-pub fn pointers_ops_after_store(
-    pile: &Pile<impl RawPile>,
-    new_pointer_name: &str,
-    pointer_data: &PointerData,
-) -> anyhow::Result<()> {
-    pile.write_pointer(&new_pointer_name, &pointer_data)?;
-    pile.flush()?;
-    Ok(())
-}
-
-pub fn pointer_ops_prepare_to_store(
-    pile: &Pile<impl RawPile>,
-    mut root_node: &mut TreeNode,
-    parent: &Option<String>,
+    use_pipelined_storage: bool,
 ) -> anyhow::Result<()> {
     if let Some(parent) = parent.as_ref() {
         let mut parent_pointer = pile.read_pointer(parent)?.ok_or_else(|| {
@@ -278,40 +254,38 @@ pub fn pointer_ops_prepare_to_store(
         fully_integrate_pointer_node(&pile, &mut parent_node.node, &mut parent_pointer)?;
         differentiate_node_in_place(&mut root_node, &parent_node.node)?;
     }
-    Ok(())
-}
 
-pub fn store_without_pointer_ops<PT: ProgressTracker>(
-    pile: &Arc<Pile<Box<dyn RawPile>>>,
-    root_dir: &PathBuf,
-    mut root_node: TreeNode,
-    num_workers: u8,
-    progress_bar: &mut PT,
-) -> anyhow::Result<PartialPointerData> {
-    // TODO make these configurable
-    let sps = StoragePipelineSettings {
-        num_compressors: get_number_of_workers("YAMA_PL_COMPRESSORS") as u32,
-        compressor_input_bound: 64,
-        writer_input_bound: 64,
-    };
-    let (control_tx, control_rx) = crossbeam_channel::unbounded();
-    let pile2 = pile.clone();
-    let pipeline = pile.raw_pile.build_storage_pipeline(sps, control_tx)?;
-
-    // TODO(newver) The existence checker stage should be able to be swapped between different implementations.
-    let pipeline = existence_checker_stage(pile2, pipeline);
-
-    store(
-        &root_dir,
-        &mut root_node,
-        &pipeline,
-        progress_bar,
-        num_workers,
-    )?;
-    // must drop the pipeline to allow the threads to close
-    drop(pipeline);
-    while let Ok(_) = control_rx.recv() {
-        // TODO nothing for now.
+    if use_pipelined_storage {
+        // TODO make these configurable
+        let sps = StoragePipelineSettings {
+            num_compressors: get_number_of_workers("YAMA_PL_COMPRESSORS") as u32,
+            compressor_input_bound: 64,
+            writer_input_bound: 64,
+        };
+        let (control_tx, control_rx) = crossbeam_channel::unbounded();
+        let pile2 = pile.clone();
+        let pipeline = pile.raw_pile.build_storage_pipeline(sps, control_tx)?;
+        let pipeline = existence_checker_stage(pile2, pipeline);
+        store(
+            &root_dir,
+            &mut root_node,
+            &pipeline,
+            progress_bar,
+            num_workers,
+        )?;
+        // must drop the pipeline to allow the threads to close
+        drop(pipeline);
+        while let Ok(_) = control_rx.recv() {
+            // TODO nothing for now.
+        }
+    } else {
+        store(
+            &root_dir,
+            &mut root_node,
+            pile.as_ref(),
+            progress_bar,
+            num_workers,
+        )?;
     }
 
     let mut uid_lookup = BTreeMap::new();
@@ -323,20 +297,19 @@ pub fn store_without_pointer_ops<PT: ProgressTracker>(
     let chunk_ref = commands::store_tree_node(
         &pile,
         &RootTreeNode {
-            name: root_dir
-                .file_name()
-                .map(|s| s.to_str())
-                .flatten()
-                .unwrap_or("_root")
-                .to_owned(),
+            name: root_dir.file_name().unwrap().to_str().unwrap().to_owned(),
             node: root_node,
         },
     )?;
 
-    let pointer_data = PartialPointerData {
+    let pointer_data = PointerData {
         chunk_ref,
+        parent_pointer: parent,
         uid_lookup,
         gid_lookup,
     };
-    Ok(pointer_data)
+
+    pile.write_pointer(&new_pointer_name, &pointer_data)?;
+    pile.flush()?;
+    Ok(())
 }

yama/src/pile.rs

@@ -26,7 +26,6 @@ use std::collections::HashSet;
 use std::fmt::Debug;
 use std::sync::{Arc, Condvar, Mutex};
 
-pub mod access_guard;
 pub mod compression;
 pub mod encryption;
 pub mod integrity;
@@ -88,8 +87,6 @@ pub fn existence_checker_stage<RP: RawPile>(
     pile: Arc<Pile<RP>>,
     next_stage: Sender<(ChunkId, Vec<u8>)>,
 ) -> Sender<(ChunkId, Vec<u8>)> {
-    // TODO(newver) Do better than this.
-
     let shared_seen_set: Arc<Mutex<HashSet<ChunkId>>> = Default::default();
     let (tx, rx) = crossbeam_channel::bounded::<(ChunkId, Vec<u8>)>(32);
 
@@ -126,22 +123,12 @@ pub enum ControllerMessage {
     },
 }
 
-#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
-pub enum PipelineDescription {
-    Store,
-    Remote,
-    Integrity,
-    Compression { dictionary_fingerprint: u64 },
-    Encryption,
-}
-
 pub trait RawPile: Send + Sync + Debug + 'static {
     // TODO expose verification errors?
     fn exists(&self, kind: Keyspace, key: &[u8]) -> anyhow::Result<bool>;
     fn read(&self, kind: Keyspace, key: &[u8]) -> anyhow::Result<Option<Vec<u8>>>;
     fn write(&self, kind: Keyspace, key: &[u8], value: &[u8]) -> anyhow::Result<()>;
     fn delete(&self, kind: Keyspace, key: &[u8]) -> anyhow::Result<()>;
-    fn delete_many(&self, kind: Keyspace, key: &[&[u8]]) -> anyhow::Result<()>;
     fn list_keys(
         &self,
         kind: Keyspace,
@@ -166,12 +153,6 @@ pub trait RawPile: Send + Sync + Debug + 'static {
         settings: StoragePipelineSettings,
         controller_send: Sender<ControllerMessage>,
     ) -> anyhow::Result<Sender<(ChunkId, Vec<u8>)>>;
-
-    fn describe_pipeline(&self) -> anyhow::Result<Vec<PipelineDescription>>;
-
-    /// Return a u64 order token that indicates the optimum order to read this chunk in
-    /// compared to other chunks.
-    fn chunk_id_transfer_ordering_hint(&self, chunk_id: &ChunkId) -> anyhow::Result<u64>;
 }
 
 impl RawPile for Box<dyn RawPile> {
@@ -187,9 +168,6 @@ impl RawPile for Box<dyn RawPile> {
     fn delete(&self, kind: Keyspace, key: &[u8]) -> anyhow::Result<()> {
         self.as_ref().delete(kind, key)
     }
-    fn delete_many(&self, kind: Keyspace, keys: &[&[u8]]) -> anyhow::Result<()> {
-        self.as_ref().delete_many(kind, keys)
-    }
     fn list_keys(
         &self,
         kind: Keyspace,
@@ -214,14 +192,6 @@ impl RawPile for Box<dyn RawPile> {
         self.as_ref()
             .build_storage_pipeline(settings, controller_send)
     }
-
-    fn describe_pipeline(&self) -> anyhow::Result<Vec<PipelineDescription>> {
-        self.as_ref().describe_pipeline()
-    }
-
-    fn chunk_id_transfer_ordering_hint(&self, chunk_id: &ChunkId) -> anyhow::Result<u64> {
-        self.as_ref().chunk_id_transfer_ordering_hint(chunk_id)
-    }
 }
 
 impl<RP: RawPile> RawPile for Arc<RP> {
@@ -237,9 +207,6 @@ impl<RP: RawPile> RawPile for Arc<RP> {
     fn delete(&self, kind: Keyspace, key: &[u8]) -> anyhow::Result<()> {
         self.as_ref().delete(kind, key)
     }
-    fn delete_many(&self, kind: Keyspace, keys: &[&[u8]]) -> anyhow::Result<()> {
-        self.as_ref().delete_many(kind, keys)
-    }
     fn list_keys(
         &self,
         kind: Keyspace,
@@ -264,14 +231,6 @@ impl<RP: RawPile> RawPile for Arc<RP> {
         self.as_ref()
             .build_storage_pipeline(settings, controller_send)
     }
-
-    fn describe_pipeline(&self) -> anyhow::Result<Vec<PipelineDescription>> {
-        self.as_ref().describe_pipeline()
-    }
-
-    fn chunk_id_transfer_ordering_hint(&self, chunk_id: &ChunkId) -> anyhow::Result<u64> {
-        self.as_ref().chunk_id_transfer_ordering_hint(chunk_id)
-    }
 }
 
 #[derive(Debug)]

yama/src/pile/access_guard.rs

@@ -1,141 +0,0 @@
-use crate::chunking::calculate_chunkid;
-use crate::definitions::ChunkId;
-use crate::pile::{
-    ControllerMessage, Keyspace, PipelineDescription, RawPile, StoragePipelineSettings,
-};
-use anyhow::{anyhow, bail};
-use crossbeam_channel::{Receiver, Sender};
-use derivative::Derivative;
-use std::sync::Arc;
-use std::thread;
-
-/// PileGuard is a wrapper around a pile that prevents data exfiltration and malicious corruption.
-/// It's basically a firewall for a Pile?
-/// Preventing malicious corruption requires the chunks to be unprocessed. This way, their ID can be
-/// checked by this module.
-#[derive(Debug, Derivative)]
-#[derivative(Clone(bound = ""))]
-// we need to use derivative's Clone impl because Arc<R> causes R to have a bound on Clone
-// even though that's not needed. https://github.com/rust-lang/rust/issues/26925
-pub struct PileGuard<R: Clone + RawPile> {
-    underlying: R,
-    /// Whether to verify chunk IDs to prevent malicious corruption
-    verify_chunk_ids: bool,
-}
-
-fn pipeline(
-    subsequent_pipeline: Sender<(ChunkId, Vec<u8>)>,
-    input: Receiver<(ChunkId, Vec<u8>)>,
-) -> anyhow::Result<()> {
-    while let Ok((claimed_chunk_id, chunk)) = input.recv() {
-        let actual_chunk_id = calculate_chunkid(&chunk);
-        if actual_chunk_id != claimed_chunk_id {
-            bail!("CHUNK ID MISMATCH — is this forgery? (malicious storage process?) claimed{:?} actually{:?}", claimed_chunk_id, actual_chunk_id);
-        }
-        subsequent_pipeline
-            .send((claimed_chunk_id, chunk))
-            .map_err(|_| anyhow!("Subsequent step closed"))?;
-    }
-    Ok(())
-}
-
-impl<R: Clone + RawPile> PileGuard<R> {
-    pub fn new(underlying: R, verify_chunk_ids: bool) -> Self {
-        PileGuard {
-            underlying,
-            verify_chunk_ids,
-        }
-    }
-}
-
-impl<R: Clone + RawPile> RawPile for PileGuard<R> {
-    fn exists(&self, kind: Keyspace, key: &[u8]) -> anyhow::Result<bool> {
-        match kind {
-            Keyspace::Chunk => self.underlying.exists(kind, key),
-            Keyspace::ChunkHash => {
-                bail!("Access denied");
-            }
-            Keyspace::Pointer => {
-                bail!("Access denied");
-            }
-        }
-    }
-
-    fn read(&self, _kind: Keyspace, _key: &[u8]) -> anyhow::Result<Option<Vec<u8>>> {
-        bail!("Access denied");
-    }
-
-    fn write(&self, kind: Keyspace, _key: &[u8], _value: &[u8]) -> anyhow::Result<()> {
-        match kind {
-            Keyspace::Chunk => {
-                todo!()
-            }
-            Keyspace::ChunkHash => {
-                bail!("Access denied");
-            }
-            Keyspace::Pointer => {
-                bail!("Access denied");
-            }
-        }
-    }
-
-    fn delete(&self, _kind: Keyspace, _key: &[u8]) -> anyhow::Result<()> {
-        bail!("Access denied");
-    }
-
-    fn delete_many(&self, _kind: Keyspace, _keys: &[&[u8]]) -> anyhow::Result<()> {
-        bail!("Access denied");
-    }
-
-    fn list_keys(
-        &self,
-        _kind: Keyspace,
-    ) -> anyhow::Result<Box<dyn Iterator<Item = anyhow::Result<Vec<u8>>>>> {
-        bail!("Access denied");
-    }
-
-    fn flush(&self) -> anyhow::Result<()> {
-        self.underlying.flush()
-    }
-
-    fn check_lowlevel(&self) -> anyhow::Result<bool> {
-        self.underlying.check_lowlevel()
-    }
-
-    fn build_storage_pipeline(
-        &self,
-        settings: StoragePipelineSettings,
-        controller_send: Sender<ControllerMessage>,
-    ) -> anyhow::Result<Sender<(ChunkId, Vec<u8>)>> {
-        let subsequent_pipeline = self
-            .underlying
-            .build_storage_pipeline(settings.clone(), controller_send.clone())?;
-
-        let (input_to_this_stage, receiver) = crossbeam_channel::bounded(8);
-
-        thread::Builder::new()
-            .name("yama Aguard".to_owned())
-            .spawn(move || {
-                if let Err(err) = pipeline(subsequent_pipeline, receiver) {
-                    controller_send
-                        .send(ControllerMessage::Failure {
-                            worker_id: Arc::new(String::from("accessguard")),
-                            error_message: format!("err {:?}", err),
-                        })
-                        .expect("This is BAD: failed to send failure message to controller.");
-                }
-            })
-            .unwrap();
-
-        Ok(input_to_this_stage)
-    }
-
-    fn describe_pipeline(&self) -> anyhow::Result<Vec<PipelineDescription>> {
-        // TODO(question) Should we be described in the pipeline?
-        self.underlying.describe_pipeline()
-    }
-
-    fn chunk_id_transfer_ordering_hint(&self, chunk_id: &ChunkId) -> anyhow::Result<u64> {
-        self.underlying.chunk_id_transfer_ordering_hint(chunk_id)
-    }
-}

yama/src/pile/compression.rs

@@ -15,7 +15,6 @@ You should have received a copy of the GNU General Public License
 along with Yama.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-use std::convert::TryInto;
 use std::sync::Arc;
 use std::thread;
 use std::thread::JoinHandle;
@@ -24,14 +23,10 @@ use anyhow::anyhow;
 use crossbeam_channel::{Receiver, Sender};
 use derivative::Derivative;
 use log::error;
-use metrics::{register_counter, Unit};
-use zstd::bulk::{Compressor, Decompressor};
+use zstd::block::{Compressor, Decompressor};
 
 use crate::definitions::ChunkId;
-use crate::pile::{
-    ControllerMessage, DebugStatistics, Keyspace, PipelineDescription, RawPile,
-    StoragePipelineSettings,
-};
+use crate::pile::{ControllerMessage, DebugStatistics, Keyspace, RawPile, StoragePipelineSettings};
 
 pub const DECOMPRESS_CAPACITY: usize = 32 * 1024 * 1024;
 
@@ -63,37 +58,6 @@ impl<R: RawPile> RawPileCompressor<R> {
         underlying: R,
         settings: CompressionSettings,
     ) -> anyhow::Result<(Self, Vec<JoinHandle<()>>)> {
-        register_counter!(
-            "compressor_in_bytes",
-            Unit::Bytes,
-            "Number of bytes that have been fed into the compressor"
-        );
-        register_counter!(
-            "compressor_out_bytes",
-            Unit::Bytes,
-            "Number of bytes that have come out of the compressor"
-        );
-        register_counter!(
-            "compressor_chunks",
-            Unit::Count,
-            "Number of chunks that have been compressed"
-        );
-        register_counter!(
-            "decompressor_in_bytes",
-            Unit::Bytes,
-            "Number of bytes that have been fed into the decompressor"
-        );
-        register_counter!(
-            "decompressor_out_bytes",
-            Unit::Bytes,
-            "Number of bytes that have come out of the decompressor"
-        );
-        register_counter!(
-            "decompressor_chunks",
-            Unit::Count,
-            "Number of chunks that have been decompressed"
-        );
-
         if settings.num_compressors == 0 && settings.num_decompressors == 0 {
             // optimisation for when we're only building a pipeline: we don't want to
             return Ok((
@@ -154,10 +118,9 @@ impl<R: RawPile> RawPileCompressor<R> {
         queue: Receiver<(Vec<u8>, Sender<Vec<u8>>)>,
         settings: CompressionSettings,
     ) -> anyhow::Result<()> {
-        let mut compressor =
-            Compressor::with_dictionary(settings.level, settings.dictionary.as_ref())?;
+        let mut compressor = Compressor::with_dict(settings.dictionary.as_ref().clone());
         while let Ok((job, response_sender)) = queue.recv() {
-            let result = compressor.compress(&job)?;
+            let result = compressor.compress(&job, settings.level)?;
             response_sender
                 .send(result)
                 .or(Err(anyhow!("Couldn't send compression result")))?;
@@ -169,7 +132,7 @@ impl<R: RawPile> RawPileCompressor<R> {
         queue: Receiver<(Vec<u8>, Sender<Vec<u8>>)>,
         settings: CompressionSettings,
     ) -> anyhow::Result<()> {
-        let mut decompressor = Decompressor::with_dictionary(settings.dictionary.as_ref())?;
+        let mut decompressor = Decompressor::with_dict(settings.dictionary.as_ref().clone());
         while let Ok((job, response_sender)) = queue.recv() {
             let result = decompressor.decompress(&job, DECOMPRESS_CAPACITY)?;
             response_sender
@@ -234,22 +197,15 @@ impl<R: RawPile> RawPileCompressor<R> {
             "id" => worker_id
         );
 
-        let mut compressor =
-            Compressor::with_dictionary(self.settings.level, self.settings.dictionary.as_ref())?;
+        let mut compressor = Compressor::with_dict(self.settings.dictionary.as_ref().clone());
+        let level = self.settings.level;
         while let Ok((chunk_id, bytes)) = input.recv() {
             let in_bytes = bytes.len();
-            let bytes = compressor.compress(&bytes)?;
+            let bytes = compressor.compress(&bytes, level)?;
             let out_bytes = bytes.len();
             next_stage.send((chunk_id, bytes))?;
-            // Per-worker metrics
-            // TODO rename
             metrics::counter!("compressor_bytes_input", in_bytes as u64, "id" => worker_id);
             metrics::counter!("compressor_bytes_output", out_bytes as u64, "id" => worker_id);
-
-            // Global metrics
-            metrics::counter!("compressor_in_bytes", in_bytes as u64);
-            metrics::counter!("compressor_out_bytes", out_bytes as u64);
-            metrics::increment_counter!("compressor_chunks");
         }
 
         Ok(())
@@ -278,10 +234,6 @@ impl<R: RawPile> RawPile for RawPileCompressor<R> {
         self.underlying.delete(kind, key)
     }
 
-    fn delete_many(&self, kind: Keyspace, keys: &[&[u8]]) -> anyhow::Result<()> {
-        self.underlying.delete_many(kind, keys)
-    }
-
     fn list_keys(
         &self,
         kind: Keyspace,
@@ -339,21 +291,4 @@ impl<R: RawPile> RawPile for RawPileCompressor<R> {
 
         Ok(input_to_this_stage)
     }
-
-    fn describe_pipeline(&self) -> anyhow::Result<Vec<PipelineDescription>> {
-        let mut underlying = self.underlying.describe_pipeline()?;
-
-        let mut dict_fingerprint_u256 = [0; 32];
-        blake::hash(256, &self.settings.dictionary, &mut dict_fingerprint_u256)?;
-        let dictionary_fingerprint: u64 =
-            u64::from_be_bytes(dict_fingerprint_u256[0..8].try_into().unwrap());
-        underlying.push(PipelineDescription::Compression {
-            dictionary_fingerprint,
-        });
-        Ok(underlying)
-    }
-
-    fn chunk_id_transfer_ordering_hint(&self, chunk_id: &ChunkId) -> anyhow::Result<u64> {
-        self.underlying.chunk_id_transfer_ordering_hint(chunk_id)
-    }
 }

yama/src/pile/encryption.rs

@@ -21,9 +21,7 @@ use sodiumoxide::crypto::secretbox;
 use sodiumoxide::crypto::secretbox::{Key, Nonce, NONCEBYTES};
 
 use crate::definitions::ChunkId;
-use crate::pile::{
-    ControllerMessage, Keyspace, PipelineDescription, RawPile, StoragePipelineSettings,
-};
+use crate::pile::{ControllerMessage, Keyspace, RawPile, StoragePipelineSettings};
 use crossbeam_channel::Sender;
 
 /// A RawPile that provides encryption of chunk contents.
@@ -101,10 +99,6 @@ impl<R: RawPile> RawPile for RawPileEncryptor<R> {
         self.underlying.delete(kind, key)
     }
 
-    fn delete_many(&self, kind: Keyspace, keys: &[&[u8]]) -> anyhow::Result<()> {
-        self.underlying.delete_many(kind, keys)
-    }
-
     fn list_keys(
         &self,
         kind: Keyspace,
@@ -120,19 +114,9 @@ impl<R: RawPile> RawPile for RawPileEncryptor<R> {
 
     fn build_storage_pipeline(
         &self,
-        _settings: StoragePipelineSettings,
-        _controller_send: Sender<ControllerMessage>,
+        settings: StoragePipelineSettings,
+        controller_send: Sender<ControllerMessage>,
     ) -> anyhow::Result<Sender<(ChunkId, Vec<u8>)>> {
         todo!()
     }
-
-    fn describe_pipeline(&self) -> anyhow::Result<Vec<PipelineDescription>> {
-        let mut underlying = self.underlying.describe_pipeline()?;
-        underlying.push(PipelineDescription::Encryption);
-        Ok(underlying)
-    }
-
-    fn chunk_id_transfer_ordering_hint(&self, chunk_id: &ChunkId) -> anyhow::Result<u64> {
-        self.underlying.chunk_id_transfer_ordering_hint(chunk_id)
-    }
 }

yama/src/pile/integrity.rs

@@ -20,10 +20,7 @@ use std::hash::Hasher;
 use thiserror::Error;
 
 use crate::definitions::{ChunkId, XXH64_SEED};
-use crate::pile::{
-    ControllerMessage, DebugStatistics, Keyspace, PipelineDescription, RawPile,
-    StoragePipelineSettings,
-};
+use crate::pile::{ControllerMessage, DebugStatistics, Keyspace, RawPile, StoragePipelineSettings};
 use crate::utils::bytes_to_hexstring;
 use crossbeam_channel::Sender;
 
@@ -98,10 +95,6 @@ impl<RP: RawPile> RawPile for RawPileIntegrityChecker<RP> {
         self.underlying.delete(kind, key)
     }
 
-    fn delete_many(&self, kind: Keyspace, keys: &[&[u8]]) -> anyhow::Result<()> {
-        self.underlying.delete_many(kind, keys)
-    }
-
     fn list_keys(
         &self,
         kind: Keyspace,
@@ -147,14 +140,4 @@ impl<RP: RawPile> RawPile for RawPileIntegrityChecker<RP> {
             .unwrap();
         Ok(input)
     }
-
-    fn describe_pipeline(&self) -> anyhow::Result<Vec<PipelineDescription>> {
-        let mut underlying = self.underlying.describe_pipeline()?;
-        underlying.push(PipelineDescription::Integrity);
-        Ok(underlying)
-    }
-
-    fn chunk_id_transfer_ordering_hint(&self, chunk_id: &ChunkId) -> anyhow::Result<u64> {
-        self.underlying.chunk_id_transfer_ordering_hint(chunk_id)
-    }
 }

yama/src/pile/local_sqlitebloblogs.rs

@@ -15,32 +15,28 @@ You should have received a copy of the GNU General Public License
 along with Yama.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-use std::collections::{BTreeMap, BTreeSet, HashMap, VecDeque};
+use std::collections::hash_map::Entry;
+use std::collections::{HashMap, VecDeque};
 use std::convert::{TryFrom, TryInto};
-use std::fs::{read_dir, remove_file, File, OpenOptions};
+use std::fs::{read_dir, File, OpenOptions};
 use std::io::{Read, Seek, SeekFrom, Write};
-use std::os::unix::fs::MetadataExt;
 use std::path::{Path, PathBuf};
 use std::sync::{Arc, Condvar, Mutex};
-use std::time::Duration;
 use std::{fs, thread};
 
-use anyhow::{bail, ensure, Context};
+use anyhow::{bail, Context};
 use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
-use crossbeam_channel::{Receiver, Sender};
 use log::{info, warn};
 use nix::unistd::sync;
-use rusqlite::ffi::ErrorCode::ConstraintViolation;
-use rusqlite::{params, Error, ErrorCode, Transaction, TransactionBehavior, NO_PARAMS};
+use rusqlite::{params, Error, ErrorCode};
 use rusqlite::{Connection, OptionalExtension};
 
 use crate::definitions::ChunkId;
-use crate::pile::{
-    ControllerMessage, DebugStatistics, Keyspace, PipelineDescription, RawPile,
-    StoragePipelineSettings,
-};
-use crate::progress::ProgressTracker;
-use crate::utils::{bytes_to_hexstring, LruMap};
+use crate::pile::{ControllerMessage, DebugStatistics, Keyspace, RawPile, StoragePipelineSettings};
+use crate::utils::bytes_to_hexstring;
+use crossbeam_channel::{Receiver, Sender};
+use rusqlite::ffi::ErrorCode::ConstraintViolation;
+use std::time::Duration;
 
 /// Bloblogs will not be reused if they are already 2 GiB large.
 pub const MAX_BLOBLOG_REUSE_SIZE: u64 = 2 * 1024 * 1024 * 1024;
@@ -48,14 +44,6 @@ pub const MAX_BLOBLOG_REUSE_SIZE: u64 = 2 * 1024 * 1024 * 1024;
 /// This many pointers will be batched up for writing.
 pub const POINTER_WRITE_BATCHES: usize = 2048;
 
-/// This many bloblogs will be kept open for reading, at maximum.
-pub const BLOBLOG_MAX_READING_FILE_COUNT: usize = 128;
-
-/// Size of a blob header within a bloblog.
-/// 32 byte Chunk Id
-/// 4 byte (u32) Blob size
-pub const BLOB_HEADER_SIZE: u64 = 32 + 4;
-
 /// A file storing a log of blobs.
 /// Format:
 ///     Repeated:
@@ -145,8 +133,8 @@ pub type BloblogId = u32;
 #[derive(Debug)]
 pub struct Inner {
     next_bloblog_id: BloblogId,
-    writer_bloblogs: Vec<(BloblogId, Arc<Mutex<Bloblog>>)>,
-    reader_bloblogs: LruMap<BloblogId, Arc<Mutex<Bloblog>>>,
+    writer_bloblogs: Vec<BloblogId>,
+    open_bloblogs: HashMap<BloblogId, Arc<Mutex<Bloblog>>>, // TODO want an LRU cache with a weak hashmap...?
     connection: Connection,
     writers_in_progress: u16,
     // We batch up pointer writes because sync() performance really hurts us if we do them one by
@@ -154,60 +142,47 @@ pub struct Inner {
     queued_pointer_writes: HashMap<ChunkId, BloblogPointer>,
 }
 
-fn raw_put_chunk_pointer_txn(
-    txn: &Transaction,
-    chunk_id: &ChunkId,
-    bloblog: BloblogId,
-    offset_i64: i64,
-) -> anyhow::Result<()> {
-    match txn.execute(
-        "INSERT INTO chunks (chunk_id, bloblog, offset) VALUES (?1, ?2, ?3)",
-        params![&chunk_id[..], bloblog, offset_i64],
-    ) {
-        Ok(_) => Ok(()),
-        Err(Error::SqliteFailure(e, str)) => {
-            if e.code == ConstraintViolation {
-                warn!(
-                    "(ignoring) SQLite constraint violation on insertion... {:?}",
-                    str
-                );
-                Ok(())
-            } else {
-                Err(Error::SqliteFailure(e, str).into())
-            }
-        }
-        Err(other) => Err(other.into()),
-    }
-}
-
 impl Inner {
     pub fn raw_put_chunk_pointer(
-        &mut self,
+        &self,
         chunk_id: &ChunkId,
         bloblog: BloblogId,
         offset_i64: i64,
     ) -> anyhow::Result<()> {
-        let txn = self.connection.transaction()?;
-        raw_put_chunk_pointer_txn(&txn, chunk_id, bloblog, offset_i64)?;
-        txn.commit()?;
-        Ok(())
+        match self.connection.execute(
+            "INSERT INTO chunks (chunk_id, bloblog, offset) VALUES (?1, ?2, ?3)",
+            params![&chunk_id[..], bloblog, offset_i64],
+        ) {
+            Ok(_) => Ok(()),
+            Err(Error::SqliteFailure(e, str)) => {
+                if e.code == ConstraintViolation {
+                    warn!(
+                        "(ignoring) SQLite constraint violation on insertion... {:?}",
+                        str
+                    );
+                    Ok(())
+                } else {
+                    Err(Error::SqliteFailure(e, str))?;
+                    unreachable!();
+                }
+            }
+            other => {
+                other?;
+                unreachable!();
+            }
+        }
     }
 
     pub fn flush(&mut self) -> anyhow::Result<()> {
         // Create a non-allocated hashmap to satisfy borrow checker, then swap it in and out
         let mut queued_pointer_writes = HashMap::with_capacity(0);
         std::mem::swap(&mut self.queued_pointer_writes, &mut queued_pointer_writes);
-
-        let txn = self.connection.transaction()?;
-
         for (chunk_id, pointer) in queued_pointer_writes.drain() {
             let offset_i64 =
                 i64::try_from(pointer.offset).expect("ouch! can't turn u64 into i64...");
-            raw_put_chunk_pointer_txn(&txn, &chunk_id, pointer.bloblog, offset_i64)?;
+            self.raw_put_chunk_pointer(&chunk_id, pointer.bloblog, offset_i64)?;
         }
         std::mem::swap(&mut self.queued_pointer_writes, &mut queued_pointer_writes);
-
-        txn.commit()?;
         Ok(())
     }
 }
@@ -269,18 +244,11 @@ impl SqliteBloblogPile {
             )?;
         }
 
-        // Enable WAL mode for significantly better write performance.
-        connection.execute_batch(
-            "
-            PRAGMA journal_mode=WAL;
-        ",
-        )?;
-
         Ok(SqliteBloblogPile {
             inner: Arc::new(Mutex::new(Inner {
                 next_bloblog_id: 0,
                 writer_bloblogs: Vec::new(),
-                reader_bloblogs: LruMap::new(BLOBLOG_MAX_READING_FILE_COUNT),
+                open_bloblogs: HashMap::new(),
                 connection,
                 writers_in_progress: 0,
                 queued_pointer_writes: Default::default(),
@@ -293,53 +261,51 @@ impl SqliteBloblogPile {
 
     fn open_bloblog(&self, bloblog_id: BloblogId) -> anyhow::Result<Arc<Mutex<Bloblog>>> {
         let mut inner = self.inner.lock().unwrap();
-
-        match inner.reader_bloblogs.get(&bloblog_id) {
-            Some(bloblog) => Ok(bloblog.clone()),
-            None => {
+        Ok(match inner.open_bloblogs.entry(bloblog_id) {
+            Entry::Occupied(entry) => entry.get().clone(),
+            Entry::Vacant(entry) => {
                 let bloblog = Arc::new(Mutex::new(Bloblog::open(
                     &self.path.join(&bloblog_id.to_string()),
                 )?));
-                inner.reader_bloblogs.insert(bloblog_id, bloblog.clone());
-                Ok(bloblog)
+                entry.insert(bloblog.clone());
+                bloblog
             }
-        }
+        })
     }
 
     fn get_writing_bloblog(&self) -> anyhow::Result<(BloblogId, Arc<Mutex<Bloblog>>)> {
         let mut inner = self.inner.lock().unwrap();
+        let writing_bloblog_id: BloblogId = match inner.writer_bloblogs.pop() {
+            None => {
+                loop {
+                    let pre_inc = inner.next_bloblog_id;
+                    inner.next_bloblog_id += 1;
 
-        inner.writers_in_progress += 1;
-
-        if let Some(writing_bloblog) = inner.writer_bloblogs.pop() {
-            // We already have an open bloblog to give back.
-            return Ok(writing_bloblog);
-        }
-
-        // No open bloblogs to reuse; create a new one.
-        // It's very important to create a fresh one here; we definitely don't want to use a file
-        // that someone else is using!
-        let writing_bloblog_id = loop {
-            let pre_inc = inner.next_bloblog_id;
-            inner.next_bloblog_id += 1;
-
-            // only start writing here if it doesn't already exist!
-            let bloblog_path = &self.path.join(&pre_inc.to_string());
-            if !bloblog_path.exists() {
-                break pre_inc;
+                    // only start writing here if it doesn't already exist!
+                    let bloblog_path = &self.path.join(&pre_inc.to_string());
+                    if !bloblog_path.exists() {
+                        break pre_inc;
+                    }
+                }
             }
+            Some(id) => id,
         };
 
-        let bloblog = Arc::new(Mutex::new(Bloblog::open(
-            &self.path.join(&writing_bloblog_id.to_string()),
-        )?));
-
-        // MAYBE FUTURE // Insert a weak reference so we can easily get a reader for this if desired.
-        // inner.open_bloblogs.insert(writing_bloblog_id, Arc::downgrade(&bloblog));
-        // For now, I don't think we actually care about reading a bloblog that we've written
-        // (at least not usually?)
-
-        Ok((writing_bloblog_id, bloblog))
+        let result = Ok((
+            writing_bloblog_id,
+            match inner.open_bloblogs.entry(writing_bloblog_id) {
+                Entry::Occupied(entry) => entry.get().clone(),
+                Entry::Vacant(entry) => {
+                    let bloblog = Arc::new(Mutex::new(Bloblog::open(
+                        &self.path.join(&writing_bloblog_id.to_string()),
+                    )?));
+                    entry.insert(bloblog.clone());
+                    bloblog
+                }
+            },
+        ));
+        inner.writers_in_progress += 1;
+        result
     }
 
     /// Should be called once the bloblog has been finished writing to for the moment.
@@ -352,7 +318,7 @@ impl SqliteBloblogPile {
         let size = bloblog.lock().unwrap().filesize()?;
         let mut inner = self.inner.lock().unwrap();
         if size < MAX_BLOBLOG_REUSE_SIZE {
-            inner.writer_bloblogs.push((id, bloblog));
+            inner.writer_bloblogs.push(id);
         }
         inner.writers_in_progress -= 1;
         if inner.writers_in_progress == 0 {
@@ -378,33 +344,8 @@ impl SqliteBloblogPile {
             .optional()?)
     }
 
-    fn get_chunk_pointers(
-        &self,
-        chunk_ids: &[&[u8]],
-    ) -> anyhow::Result<Vec<Option<BloblogPointer>>> {
-        let mut inner = self.inner.lock().unwrap();
-        let txn = inner.connection.transaction()?;
-        let mut result = Vec::with_capacity(chunk_ids.len());
-        {
-            let mut stmt = txn.prepare("SELECT bloblog, offset FROM chunks WHERE chunk_id = ?1")?;
-            for &chunk_id in chunk_ids {
-                let bloglog_pointer: Option<BloblogPointer> = stmt
-                    .query_row(params![chunk_id], |row| {
-                        Ok(BloblogPointer {
-                            bloblog: row.get(0)?,
-                            offset: row.get::<_, i64>(1)? as u64,
-                        })
-                    })
-                    .optional()?;
-                result.push(bloglog_pointer);
-            }
-        }
-        txn.commit()?;
-        Ok(result)
-    }
-
     fn put_chunk_pointer(&self, chunk_id: &ChunkId, pointer: BloblogPointer) -> anyhow::Result<()> {
-        let mut inner = self.inner.lock().unwrap();
+        let inner = self.inner.lock().unwrap();
         let offset_i64 = i64::try_from(pointer.offset).expect("ouch! can't turn u64 into i64...");
         inner.raw_put_chunk_pointer(chunk_id, pointer.bloblog, offset_i64)
     }
@@ -442,7 +383,7 @@ impl SqliteBloblogPile {
             pointers_buffered: &mut Vec<(ChunkId, BloblogPointer)>,
         ) -> anyhow::Result<()> {
             let mut inner = this.inner.lock().unwrap();
-            let txn = inner.connection.transaction()?;
+            let mut txn = inner.connection.transaction()?;
             {
                 let mut stmt = txn.prepare(
                     "INSERT OR FAIL INTO chunks (chunk_id, bloblog, offset) VALUES (?1, ?2, ?3)",
@@ -528,341 +469,6 @@ impl SqliteBloblogPile {
         assert!(pointers_buffered.is_empty());
         Ok(())
     }
-
-    /// Look at the bloblogs in this pile and see where space may be reclaimable if we were to
-    /// compact.
-    ///
-    /// Next step: plan_compaction
-    pub fn analyse_for_compaction(&self) -> anyhow::Result<BTreeMap<BloblogId, BloblogStats>> {
-        let mut inner = self.inner.lock().unwrap();
-        // Lock the database right away.
-        let txn = inner
-            .connection
-            .transaction_with_behavior(TransactionBehavior::Exclusive)?;
-        let mut stmt = txn.prepare(
-            "
-            SELECT bloblog, COUNT(c.offset), COUNT(d.offset), SUM(COALESCE(d.size, 0))
-            FROM chunks c LEFT JOIN deleted d USING (bloblog, offset)
-            GROUP BY bloblog
-        ",
-        )?;
-
-        struct UnpopulatedBloblogStats {
-            pub bloblog_id: BloblogId,
-            pub chunks_total: u64,
-            pub chunks_deleted: u64,
-            pub bytes_deleted: u64,
-        }
-
-        let unpopul_bloblog_stats = stmt.query_map(NO_PARAMS, |row| {
-            Ok(UnpopulatedBloblogStats {
-                bloblog_id: row.get(0)?,
-                chunks_total: row.get::<_, i64>(1)?.try_into().expect("i64 -> u64"),
-                chunks_deleted: row.get::<_, i64>(2)?.try_into().expect("i64 -> u64"),
-                bytes_deleted: row.get::<_, i64>(3)?.try_into().expect("i64 -> u64"),
-            })
-        })?;
-
-        let mut final_stats = BTreeMap::new();
-
-        for unpopul_stat in unpopul_bloblog_stats {
-            let UnpopulatedBloblogStats {
-                bloblog_id,
-                chunks_total,
-                chunks_deleted,
-                bytes_deleted,
-            } = unpopul_stat?;
-            let bloblog_path = self.path.join(&bloblog_id.to_string());
-            let bytes_total = std::fs::metadata(&bloblog_path)
-                .with_context(|| format!("Failed to get metadata for bloblog: {:?}", bloblog_path))?
-                .size();
-
-            final_stats.insert(
-                bloblog_id,
-                BloblogStats {
-                    chunks_total,
-                    chunks_deleted,
-                    bytes_total,
-                    // Add a slight correction since we can count the blob headers of deleted blobs
-                    // as deleted.
-                    bytes_deleted: bytes_deleted + chunks_deleted * BLOB_HEADER_SIZE,
-                },
-            );
-        }
-
-        Ok(final_stats)
-    }
-
-    /// Look at the analysis of compaction and, using the specified thresholds, come up with a plan
-    /// to perform compaction.
-    ///
-    /// May return an empty plan if compaction isn't worthwhile.
-    ///
-    /// Previous step: analyse_for_compaction
-    /// Next step: perform_compaction
-    pub fn plan_compaction(
-        &self,
-        thresholds: &CompactionThresholds,
-        analysis: BTreeMap<BloblogId, BloblogStats>,
-    ) -> anyhow::Result<CompactionPlan> {
-        let bloblogs_to_replace: BTreeMap<BloblogId, BloblogStats> = analysis
-            .into_iter()
-            .filter(|(_id, stats)| thresholds.should_replace_bloblog(stats))
-            .collect();
-        let reclaimable_space: u64 = bloblogs_to_replace
-            .values()
-            .map(|bs| bs.bytes_deleted)
-            .sum();
-        let bytes_to_write: u64 = bloblogs_to_replace
-            .values()
-            .map(|bs| bs.bytes_total - bs.bytes_deleted)
-            .sum();
-        let small_bloblogs: u32 = bloblogs_to_replace
-            .values()
-            .filter(|bs| bs.bytes_total - bs.bytes_deleted < thresholds.cond_if_less_allocated_than)
-            .count() as u32;
-
-        if reclaimable_space < thresholds.minimum_to_reclaim
-            && small_bloblogs < thresholds.minimum_small_bloblogs_to_merge
-        {
-            // Nothing worth doing: return an empty plan.
-            return Ok(CompactionPlan {
-                bloblogs_to_replace: Default::default(),
-                bytes_to_write: 0,
-                reclaimable_space: 0,
-                small_bloblogs: 0,
-            });
-        }
-
-        Ok(CompactionPlan {
-            bloblogs_to_replace: bloblogs_to_replace.keys().copied().collect(),
-            bytes_to_write,
-            reclaimable_space,
-            small_bloblogs,
-        })
-    }
-
-    /// Given a compaction plan, perform the compaction.
-    /// There shouldn't be any decisions left to be made at this point: just action.
-    ///
-    /// TODO flock the bloblogs to be removed and make readers and writers also flock them too.
-    ///
-    /// TODO find a way to deal with bloblogs that are entirely unreferenced from the index
-    ///      (e.g. bloblogs that weren't written properly, e.g. if compaction fails.)
-    pub fn perform_compaction(
-        &self,
-        mut progress: Box<dyn ProgressTracker>,
-        plan: CompactionPlan,
-    ) -> anyhow::Result<()> {
-        #[derive(Copy, Clone, Ord, PartialOrd, Eq, PartialEq)]
-        struct ReplacedBlobRow {
-            pub old_bloblog: BloblogId,
-            pub old_offset: u64,
-            pub chunk_id: ChunkId,
-        }
-
-        if plan.bloblogs_to_replace.is_empty() {
-            info!("No compaction to be done.");
-            return Ok(());
-        }
-
-        let mut to_preserve = BTreeSet::new();
-        let mut replacements = BTreeMap::new();
-
-        progress.set_max_size(plan.bytes_to_write);
-
-        // First find all the blobs we need to replace.
-        {
-            let mut inner = self.inner.lock().unwrap();
-            // Lock the database right away.
-            let txn = inner
-                .connection
-                .transaction_with_behavior(TransactionBehavior::Exclusive)?;
-            let mut stmt = txn.prepare(
-                "
-                SELECT chunk_id, c.offset
-                FROM chunks c LEFT JOIN deleted d USING (bloblog, offset)
-                WHERE bloblog = ?1 AND d.offset IS NULL
-            ",
-            )?;
-            for bloblog in plan.bloblogs_to_replace.iter().copied() {
-                to_preserve.extend(
-                    stmt.query_map([bloblog], |row| {
-                        let mut chunk_id = ChunkId::default();
-                        chunk_id.copy_from_slice(row.get::<_, Vec<u8>>(0).unwrap().as_slice());
-                        Ok(ReplacedBlobRow {
-                            old_bloblog: bloblog,
-                            chunk_id,
-                            old_offset: row.get::<_, i64>(1).unwrap().try_into().unwrap(),
-                        })
-                    })?
-                    .collect::<Result<Vec<ReplacedBlobRow>, _>>()?,
-                );
-            }
-        }
-
-        // Then make the replacements
-        info!("Rewriting bloblogs...");
-        let mut buf = Vec::new();
-        let mut iterator = to_preserve.into_iter();
-        loop {
-            let (new_bloblog_id, bloglog_mutex) = self.get_writing_bloblog()?;
-            let mut new_bloblog = bloglog_mutex.lock().expect("Failed to lock bloblog?");
-            let mut is_more = false;
-
-            while let Some(preserve) = iterator.next() {
-                is_more = true;
-
-                // Get hold of the old bloblog
-                let old_bloblog = self.open_bloblog(preserve.old_bloblog)?;
-                let mut old_bloblog = old_bloblog.lock().unwrap();
-
-                // Transfer the blob
-                buf.clear();
-                old_bloblog.read_blob(preserve.old_offset, &preserve.chunk_id, &mut buf)?;
-                let new_offset = new_bloblog.write_blob(&preserve.chunk_id, &buf)?;
-
-                // Make a note of the replacement
-                replacements.insert(
-                    preserve,
-                    BloblogPointer {
-                        bloblog: new_bloblog_id,
-                        offset: new_offset,
-                    },
-                );
-
-                progress.inc_progress(buf.len() as u64);
-
-                if new_bloblog.filesize()? > MAX_BLOBLOG_REUSE_SIZE {
-                    // get a new bloblog to write with.
-                    break;
-                }
-            }
-
-            drop(new_bloblog);
-            self.return_writing_bloblog(new_bloblog_id, bloglog_mutex)?;
-
-            if !is_more {
-                break;
-            }
-        }
-
-        info!("Applying replacements...");
-        {
-            let mut inner = self.inner.lock().unwrap();
-            // Lock the database right away.
-            let txn = inner
-                .connection
-                .transaction_with_behavior(TransactionBehavior::Exclusive)?;
-            let mut stmt = txn.prepare(
-                "
-                UPDATE chunks
-                SET bloblog = ?1, offset = ?2
-                WHERE chunk_id = ?3
-            ",
-            )?;
-
-            for (replacement_row, new_pos) in replacements {
-                ensure!(
-                    stmt.execute(params![
-                        new_pos.bloblog,
-                        new_pos.offset as i64,
-                        &replacement_row.chunk_id as &[u8]
-                    ])? == 1,
-                    "Wrong number of rows updated for replacement!"
-                );
-            }
-
-            drop(stmt);
-            txn.commit().context("committing replacements")?;
-        }
-
-        // TODO fsync new bloblogs
-
-        info!("Deleting old bloblogs...");
-        {
-            let mut inner = self.inner.lock().unwrap();
-            // Lock the database right away.
-            let txn = inner
-                .connection
-                .transaction_with_behavior(TransactionBehavior::Exclusive)?;
-
-            for bloblog_id in plan.bloblogs_to_replace.iter().copied() {
-                let deleted_chunks = txn.execute(
-                    "
-                    DELETE FROM chunks WHERE bloblog = ?1
-                ",
-                    params![bloblog_id],
-                )?;
-
-                let deleted_deleted = txn.execute(
-                    "
-                    DELETE FROM deleted WHERE bloblog = ?1
-                ",
-                    params![bloblog_id],
-                )?;
-
-                ensure!(deleted_chunks == deleted_deleted, "Undeleted chunks left in bloblog {bloblog_id}: CHUNKS={deleted_chunks} DELETED={deleted_deleted}");
-
-                let bloblog_path = self.path.join(bloblog_id.to_string());
-                remove_file(&bloblog_path).with_context(|| {
-                    format!("Failed to remove obsolete bloblog: {:?}", bloblog_path)
-                })?;
-            }
-
-            txn.commit()?;
-        }
-
-        Ok(())
-    }
-}
-
-pub struct BloblogStats {
-    pub chunks_total: u64,
-    pub chunks_deleted: u64,
-    pub bytes_total: u64,
-    pub bytes_deleted: u64,
-}
-
-pub struct CompactionPlan {
-    pub bloblogs_to_replace: BTreeSet<BloblogId>,
-    pub bytes_to_write: u64,
-    pub reclaimable_space: u64,
-    pub small_bloblogs: u32,
-}
-
-pub struct CompactionThresholds {
-    /// Minimum bytes to be reclaimable overall for compaction to be worthwhile.
-    pub minimum_to_reclaim: u64,
-
-    /// (alternative reason) Minimum number of files to be undersized in order for compaction
-    /// to be worthwhile.
-    /// This gives us a way to make compaction run if we have lots of tiny bloblogs.
-    pub minimum_small_bloblogs_to_merge: u32,
-
-    /// A bloblog will be replaced if the deallocated size is greater than this.
-    pub cond_if_more_deallocated_than: u64,
-
-    /// A bloblog will be replaced if the allocated size is less than this.
-    pub cond_if_less_allocated_than: u64,
-}
-
-impl CompactionThresholds {
-    pub fn should_replace_bloblog(&self, bloblog_stats: &BloblogStats) -> bool {
-        let allocated = bloblog_stats.bytes_total - bloblog_stats.bytes_deleted;
-        // Note that this will also trigger for fully-deallocated files if
-        let is_small = allocated < self.cond_if_less_allocated_than;
-        let has_large_deallocations =
-            bloblog_stats.bytes_deleted > self.cond_if_more_deallocated_than;
-        is_small || has_large_deallocations
-    }
-}
-
-pub struct CompactionOutcome {
-    pub bloblogs_deleted: u32,
-    pub bloblogs_created: u32,
-    pub bytes_deleted: u32,
-    pub bytes_created: u32,
 }
 
 impl Drop for SqliteBloblogPile {
@@ -1007,59 +613,6 @@ impl RawPile for SqliteBloblogPile {
             }
         }
     }
-
-    fn delete_many(&self, kind: Keyspace, keys: &[&[u8]]) -> anyhow::Result<()> {
-        match kind {
-            Keyspace::Chunk => {
-                let mut chunk_pointers_by_bloblog: BTreeMap<BloblogId, Vec<(u64, &[u8])>> =
-                    BTreeMap::new();
-
-                for (chunk_pointer, chunk_id) in self
-                    .get_chunk_pointers(keys)
-                    .context("failed to get chunk pointers")?
-                    .into_iter()
-                    .zip(keys)
-                    .filter_map(|(pointer, &chunk_id)| match pointer {
-                        Some(pointer) => Some((pointer, chunk_id)),
-                        None => None,
-                    })
-                {
-                    chunk_pointers_by_bloblog
-                        .entry(chunk_pointer.bloblog)
-                        .or_default()
-                        .push((chunk_pointer.offset, chunk_id));
-                }
-                let mut inner = self.inner.lock().unwrap();
-                let txn = inner.connection.transaction()?;
-                {
-                    let mut stmt = txn.prepare(
-                        "INSERT OR IGNORE INTO deleted (bloblog, offset, size)
-                            VALUES (?1, ?2, ?3)",
-                    )?;
-                    for (bloblog_id, entries) in chunk_pointers_by_bloblog {
-                        let bloblog_mutex = self.open_bloblog(bloblog_id)?;
-                        let mut bloblog = bloblog_mutex.lock().unwrap();
-                        for (chunk_offset, raw_chunk_id) in entries {
-                            let mut chunk_id: ChunkId = Default::default();
-                            chunk_id.copy_from_slice(raw_chunk_id);
-                            let size = bloblog.blob_len(chunk_offset, &chunk_id)?;
-                            let offset_i64 = i64::try_from(chunk_offset)
-                                .expect("ouch! can't turn u64 into i64...");
-                            stmt.execute(params![bloblog_id, offset_i64, size])?;
-                        }
-                    }
-                }
-                txn.commit().context("Failed to commit chunk deletions")?;
-            }
-            _ => {
-                for &key in keys {
-                    self.delete(kind, key)?;
-                }
-            }
-        }
-        Ok(())
-    }
-
     fn list_keys(
         &self,
         kind: Keyspace,
@@ -1153,37 +706,20 @@ impl RawPile for SqliteBloblogPile {
 
         let this = self.clone();
 
-        thread::Builder::new()
-            .name("SQLBloblogStPpln".to_string())
-            .spawn(move || {
-                let worker_id = Arc::new(format!("bloblogwriter"));
-                if let Err(err) = this.storage_pipeline_worker(incoming) {
-                    controller_send
-                        .send(ControllerMessage::Failure {
-                            worker_id,
-                            error_message: format!("err {:?}", err),
-                        })
-                        .expect("This is BAD: failed to send failure message to controller.");
-                }
-            })
-            .unwrap();
+        thread::spawn(move || {
+            let worker_id = Arc::new(format!("bloblogwriter"));
+            if let Err(err) = this.storage_pipeline_worker(incoming) {
+                controller_send
+                    .send(ControllerMessage::Failure {
+                        worker_id,
+                        error_message: format!("err {:?}", err),
+                    })
+                    .expect("This is BAD: failed to send failure message to controller.");
+            }
+        });
 
         Ok(sender)
     }
-
-    fn describe_pipeline(&self) -> anyhow::Result<Vec<PipelineDescription>> {
-        Ok(vec![PipelineDescription::Store])
-    }
-
-    fn chunk_id_transfer_ordering_hint(&self, chunk_id: &ChunkId) -> anyhow::Result<u64> {
-        let chunk_pointer = self
-            .get_chunk_pointer(chunk_id)?
-            .context("Can't get chunk ID transfer ordering hint for chunk without pointer.")?;
-
-        // Scheme: 24-bit bloblog ID
-        // followed by 40-bit offset
-        Ok(((chunk_pointer.bloblog as u64) << 40) | (chunk_pointer.offset & 0xFF_FF_FF_FF_FF))
-    }
 }
 
 struct KeyIterator {
@@ -1229,9 +765,8 @@ impl Iterator for KeyIterator {
 
 #[cfg(test)]
 mod tests {
-    use temp_dir::TempDir;
-
     use crate::pile::local_sqlitebloblogs::Bloblog;
+    use temp_dir::TempDir;
 
     #[test]
     pub fn bloblog_read_write_test() {

yama/src/remote.rs

@@ -22,7 +22,7 @@ use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
 use serde::de::DeserializeOwned;
 use serde::{Deserialize, Serialize};
 
-use crate::pile::{Keyspace, PipelineDescription};
+use crate::pile::Keyspace;
 
 pub mod requester;
 pub mod responder;
@@ -60,7 +60,6 @@ pub enum RequestBody {
     },
     Flush,
     LowLevelCheck,
-    Describe,
     Shutdown,
     Progress {
         current: u64,
@@ -74,7 +73,7 @@ pub struct Response {
     body: ResponseBody,
 }
 
-#[derive(Serialize, Deserialize, Clone, Debug)]
+#[derive(Serialize, Deserialize, Clone)]
 pub enum ResponseBody {
     Success,
     Failed(String),
@@ -84,7 +83,6 @@ pub enum ResponseBody {
         batch: Vec<Vec<u8>>,
         next_token: u16,
     },
-    Description(Vec<PipelineDescription>),
 }
 
 pub fn read_message<R: Read, D: DeserializeOwned>(read: &mut R) -> anyhow::Result<D> {

yama/src/remote/requester.rs

@@ -4,20 +4,14 @@ use std::sync::{Arc, Mutex};
 use std::thread;
 use std::thread::JoinHandle;
 
-use anyhow::{anyhow, bail};
+use anyhow::anyhow;
 use crossbeam_channel::{Receiver, Sender};
 use log::{error, info};
 
 use crate::definitions::ChunkId;
-use crate::pile::{
-    ControllerMessage, Keyspace, PipelineDescription, RawPile, StoragePipelineSettings,
-};
+use crate::pile::{ControllerMessage, Keyspace, RawPile, StoragePipelineSettings};
 use crate::remote::{read_message, write_message, Request, RequestBody, Response, ResponseBody};
-use metrics::{
-    gauge, histogram, increment_counter, register_counter, register_gauge, register_histogram, Unit,
-};
 use std::sync::atomic::{AtomicBool, AtomicU16, Ordering};
-use std::time::Instant;
 
 /// A kind of RawPile which can make requests to a RawPile over a pipe (e.g. TCP socket or an
 /// SSH connection).
@@ -32,13 +26,7 @@ impl Requester {
         read: R,
         write: W,
     ) -> (Self, Vec<JoinHandle<()>>) {
-        register_histogram!(
-            "requester_cmd_response_time_ms",
-            Unit::Milliseconds,
-            "Time between request being issued and a response being received"
-        );
-
-        let in_flight: Arc<Mutex<HashMap<u16, (Sender<ResponseBody>, Instant)>>> =
+        let in_flight: Arc<Mutex<HashMap<u16, Sender<ResponseBody>>>> =
             Arc::new(Mutex::new(HashMap::new()));
         let (command_sender, command_receiver) = crossbeam_channel::bounded(16);
         let mut handles = Vec::new();
@@ -49,34 +37,22 @@ impl Requester {
             // Spawn a reader
             let in_flight = in_flight.clone();
             let shutdown_signal = shutdown_signal.clone();
-            handles.push(
-                thread::Builder::new()
-                    .name("ReqstrReader".to_string())
-                    .spawn(move || {
-                        if let Err(e) = Self::reader(read, in_flight, shutdown_signal) {
-                            error!("reader failed: {:?}", e);
-                        }
-                    })
-                    .unwrap(),
-            );
+            handles.push(thread::spawn(move || {
+                if let Err(e) = Self::reader(read, in_flight, shutdown_signal) {
+                    error!("reader failed: {:?}", e);
+                }
+            }));
         }
 
         {
             // Spawn a writer
             let in_flight = in_flight.clone();
             let command_receiver = command_receiver.clone();
-            handles.push(
-                thread::Builder::new()
-                    .name("ReqstrWriter".to_string())
-                    .spawn(move || {
-                        if let Err(e) =
-                            Self::writer(write, in_flight, command_receiver, shutdown_signal)
-                        {
-                            error!("writer failed: {:?}", e);
-                        }
-                    })
-                    .unwrap(),
-            );
+            handles.push(thread::spawn(move || {
+                if let Err(e) = Self::writer(write, in_flight, command_receiver, shutdown_signal) {
+                    error!("writer failed: {:?}", e);
+                }
+            }));
         }
 
         (
@@ -88,7 +64,7 @@ impl Requester {
     }
 
     pub fn new_from_stdio() -> (Self, Vec<JoinHandle<()>>) {
-        let in_flight: Arc<Mutex<HashMap<u16, (Sender<ResponseBody>, Instant)>>> =
+        let in_flight: Arc<Mutex<HashMap<u16, Sender<ResponseBody>>>> =
             Arc::new(Mutex::new(HashMap::new()));
         let (command_sender, command_receiver) = crossbeam_channel::bounded(16);
         let mut handles = Vec::new();
@@ -99,38 +75,26 @@ impl Requester {
             // Spawn a reader
             let in_flight = in_flight.clone();
             let shutdown_signal = shutdown_signal.clone();
-            handles.push(
-                thread::Builder::new()
-                    .name("ReqstrReaderSI".to_string())
-                    .spawn(move || {
-                        let stdin = stdin();
-                        let read = stdin.lock();
-                        if let Err(e) = Self::reader(read, in_flight, shutdown_signal) {
-                            error!("reader failed: {:?}", e);
-                        }
-                    })
-                    .unwrap(),
-            );
+            handles.push(thread::spawn(move || {
+                let stdin = stdin();
+                let read = stdin.lock();
+                if let Err(e) = Self::reader(read, in_flight, shutdown_signal) {
+                    error!("reader failed: {:?}", e);
+                }
+            }));
         }
 
         {
             // Spawn a writer
             let in_flight = in_flight.clone();
             let command_receiver = command_receiver.clone();
-            handles.push(
-                thread::Builder::new()
-                    .name("ReqstrWriterSO".to_string())
-                    .spawn(move || {
-                        let stdout = stdout();
-                        let write = stdout.lock();
-                        if let Err(e) =
-                            Self::writer(write, in_flight, command_receiver, shutdown_signal)
-                        {
-                            error!("writer failed: {:?}", e);
-                        }
-                    })
-                    .unwrap(),
-            );
+            handles.push(thread::spawn(move || {
+                let stdout = stdout();
+                let write = stdout.lock();
+                if let Err(e) = Self::writer(write, in_flight, command_receiver, shutdown_signal) {
+                    error!("writer failed: {:?}", e);
+                }
+            }));
         }
 
         (
@@ -148,7 +112,7 @@ impl Requester {
     /// Thread that reads messages and sends them along.
     fn reader<R: Read>(
         mut read: R,
-        in_flight: Arc<Mutex<HashMap<u16, (Sender<ResponseBody>, Instant)>>>,
+        in_flight: Arc<Mutex<HashMap<u16, Sender<ResponseBody>>>>,
         shutdown_request_channel: Arc<(AtomicU16, AtomicBool)>,
     ) -> anyhow::Result<()> {
         loop {
@@ -160,18 +124,9 @@ impl Requester {
                 return Ok(());
             }
 
-            let mut map = in_flight.lock().or(Err(anyhow!("Mutex poisoned")))?;
-
-            // We free up the ID as we get the sender out of the map.
-            let (resp_sender, req_instant) = map
-                .remove(&response.response_to)
-                .ok_or(anyhow!("Didn't find response channel..."))?;
-
-            let req_resp_time_in_millis =
-                Instant::now().duration_since(req_instant).as_millis() as f64;
-            histogram!("requester_cmd_response_time_ms", req_resp_time_in_millis);
-
-            resp_sender
+            let map = in_flight.lock().or(Err(anyhow!("Mutex poisoned")))?;
+            map.get(&response.response_to)
+                .ok_or(anyhow!("Didn't find response channel..."))?
                 .send(response.body)
                 .or(Err(anyhow!("Failed to send response to channel")))?;
         }
@@ -180,7 +135,7 @@ impl Requester {
     /// Thread that writes messages.
     fn writer<W: Write>(
         mut write: W,
-        in_flight: Arc<Mutex<HashMap<u16, (Sender<ResponseBody>, Instant)>>>,
+        in_flight: Arc<Mutex<HashMap<u16, Sender<ResponseBody>>>>,
         command_receiver: Receiver<(RequestBody, Option<Sender<ResponseBody>>)>,
         shutdown_request_channel: Arc<(AtomicU16, AtomicBool)>,
     ) -> anyhow::Result<()> {
@@ -191,8 +146,7 @@ impl Requester {
                     .into_iter()
                     .find(|id| !map.contains_key(&id))
                     .expect("No ID found");
-                let now = Instant::now();
-                map.insert(request_id, (response_channel, now));
+                map.insert(request_id, response_channel);
                 request_id
             } else {
                 0
@@ -271,7 +225,8 @@ impl RawPile for Requester {
             ResponseBody::Success => Ok(true),
             ResponseBody::Failed(err_msg) => Err(anyhow!("Remote failure: {}", err_msg)),
             ResponseBody::NotExists => Ok(false),
-            other => Err(anyhow!("Received {:?} for Exists", other)),
+            ResponseBody::Data(_) => Err(anyhow!("Received Data for exists.")),
+            ResponseBody::BatchData { .. } => Err(anyhow!("Received BatchData for exists.")),
         }
     }
     fn read(&self, kind: Keyspace, key: &[u8]) -> anyhow::Result<Option<Vec<u8>>> {
@@ -283,7 +238,7 @@ impl RawPile for Requester {
             ResponseBody::Failed(err_msg) => Err(anyhow!("Remote failure: {}", err_msg)),
             ResponseBody::NotExists => Ok(None),
             ResponseBody::Data(data) => Ok(Some(data)),
-            other => Err(anyhow!("Received {:?} for Read", other)),
+            ResponseBody::BatchData { .. } => Err(anyhow!("Received BatchData for read.")),
         }
     }
     fn write(&self, kind: Keyspace, key: &[u8], value: &[u8]) -> anyhow::Result<()> {
@@ -294,7 +249,9 @@ impl RawPile for Requester {
         })? {
             ResponseBody::Success => Ok(()),
             ResponseBody::Failed(err_msg) => Err(anyhow!("Remote failure: {}", err_msg)),
-            other => Err(anyhow!("Received {:?} for Write", other)),
+            ResponseBody::NotExists => Err(anyhow!("Received NotExists for write.")),
+            ResponseBody::Data(_) => Err(anyhow!("Received Data for write.")),
+            ResponseBody::BatchData { .. } => Err(anyhow!("Received BatchData for write.")),
         }
     }
     fn delete(&self, kind: Keyspace, key: &[u8]) -> anyhow::Result<()> {
@@ -304,15 +261,11 @@ impl RawPile for Requester {
         })? {
             ResponseBody::Success => Ok(()),
             ResponseBody::Failed(err_msg) => Err(anyhow!("Remote failure: {}", err_msg)),
-            other => Err(anyhow!("Received {:?} for Delete", other)),
+            ResponseBody::NotExists => Err(anyhow!("Received NotExists for delete.")),
+            ResponseBody::Data(_) => Err(anyhow!("Received Data for delete.")),
+            ResponseBody::BatchData { .. } => Err(anyhow!("Received BatchData for delete.")),
         }
     }
-    fn delete_many(&self, kind: Keyspace, keys: &[&[u8]]) -> anyhow::Result<()> {
-        for &key in keys {
-            self.delete(kind, key)?;
-        }
-        Ok(())
-    }
     fn list_keys(
         &self,
         kind: Keyspace,
@@ -324,33 +277,38 @@ impl RawPile for Requester {
                 buffer: Vec::with_capacity(0),
             })),
             ResponseBody::Failed(err_msg) => Err(anyhow!("Remote failure: {}", err_msg)),
+            ResponseBody::NotExists => Err(anyhow!("Received NotExists for list_keys.")),
+            ResponseBody::Data(_) => Err(anyhow!("Received Data for list_keys.")),
             ResponseBody::BatchData { batch, next_token } => Ok(Box::new(ListKeyIterator {
                 command_sender: self.commands.clone(),
                 batch_token: Some(next_token),
                 buffer: batch,
             })),
-            other => Err(anyhow!("Received {:?} for List", other)),
         }
     }
     fn flush(&self) -> anyhow::Result<()> {
         match self.request(RequestBody::Flush)? {
             ResponseBody::Success => Ok(()),
             ResponseBody::Failed(err_msg) => Err(anyhow!("Remote failure: {}", err_msg)),
-            other => Err(anyhow!("Received {:?} for Flush", other)),
+            ResponseBody::NotExists => Err(anyhow!("Received NotExists for Flush.")),
+            ResponseBody::Data(_) => Err(anyhow!("Received Data for Flush.")),
+            ResponseBody::BatchData { .. } => Err(anyhow!("Received BatchData for Flush.")),
         }
     }
     fn check_lowlevel(&self) -> anyhow::Result<bool> {
         match self.request(RequestBody::LowLevelCheck)? {
             ResponseBody::Success => Ok(true),
             ResponseBody::Failed(err_msg) => Err(anyhow!("Remote failure: {}", err_msg)),
-            other => Err(anyhow!("Received {:?} for LowLevelCheck", other)),
+            ResponseBody::NotExists => Err(anyhow!("Received NotExists for LowLevelCheck.")),
+            ResponseBody::Data(_) => Err(anyhow!("Received Data for LowLevelCheck.")),
+            ResponseBody::BatchData { .. } => Err(anyhow!("Received BatchData for LowLevelCheck.")),
         }
     }
 
     fn build_storage_pipeline(
         &self,
-        _settings: StoragePipelineSettings,
-        _controller_send: Sender<ControllerMessage>,
+        settings: StoragePipelineSettings,
+        controller_send: Sender<ControllerMessage>,
     ) -> anyhow::Result<Sender<(ChunkId, Vec<u8>)>> {
         // this one is a little bit more complex.
         // We want to be able to send off multiple write requests at once, but not too many, so we
@@ -358,96 +316,77 @@ impl RawPile for Requester {
         let (input, receiver) = crossbeam_channel::bounded::<(ChunkId, Vec<u8>)>(128);
         let command_sender = self.commands.clone();
 
-        register_counter!(
-            "requester_pipeline_cmds_issued",
-            Unit::Count,
-            "Number of write commands issued by the Requester's storage pipeline"
-        );
-        register_gauge!(
-            "requester_pipeline_writes_inflight",
-            Unit::Count,
-            "Number of write commands in-flight"
-        );
+        std::thread::spawn(move || {
+            let (response_tx, response_rx) = crossbeam_channel::bounded::<ResponseBody>(32);
+            let mut in_flight_writes = 0;
+            const MAX_IN_FLIGHT_WRITES: u32 = 32;
+            let mut pipeline_still_going = true;
 
-        std::thread::Builder::new()
-            .name("ReqStPpln".to_string())
-            .spawn(move || {
-                let (response_tx, response_rx) = crossbeam_channel::bounded::<ResponseBody>(32);
-                let mut in_flight_writes = 0;
-                const MAX_IN_FLIGHT_WRITES: u32 = 32;
-                let mut pipeline_still_going = true;
-
-                while pipeline_still_going || in_flight_writes > 0 {
-                    gauge!(
-                        "requester_pipeline_writes_inflight",
-                        in_flight_writes as f64
-                    );
-                    // TODO this won't handle channel closure properly.
-                    if in_flight_writes < MAX_IN_FLIGHT_WRITES && pipeline_still_going {
-                        crossbeam_channel::select! {
-                            recv(response_rx) -> resp => {
-                                in_flight_writes -= 1;
-                                match resp.unwrap() {
-                                    ResponseBody::Success => {
-                                        // nop
-                                    }
-                                    ResponseBody::Failed(string) => {
-                                        panic!("Requester pipeline fail {}", string);
-                                    }
-                                    other => panic!("wtf {:?}", other),
+            while pipeline_still_going || in_flight_writes > 0 {
+                // TODO this won't handle channel closure properly.
+                if in_flight_writes < MAX_IN_FLIGHT_WRITES && pipeline_still_going {
+                    crossbeam_channel::select! {
+                        recv(response_rx) -> resp => {
+                            in_flight_writes -= 1;
+                            match resp.unwrap() {
+                                ResponseBody::Success => {
+                                    // nop
                                 }
-                            }
-                            recv(receiver) -> resp => {
-                                if let Ok((chunk_id, write)) = resp {
-                                    in_flight_writes += 1;
-                                    increment_counter!("requester_pipeline_cmds_issued");
-                                    command_sender.send((RequestBody::Write {
-                                        kind: Keyspace::Chunk,
-                                        key: chunk_id.to_vec(),
-                                        value: write
-                                    }, Some(response_tx.clone()))).unwrap();
-                                } else {
-                                    // the input has stopped
-                                    pipeline_still_going = false;
+                                ResponseBody::Failed(string) => {
+                                    panic!("Requester pipeline fail {}", string);
+                                }
+                                ResponseBody::BatchData { .. } => {
+                                    panic!("wtf BatchData");
+                                }
+                                ResponseBody::NotExists => {
+                                    panic!("wtf NotExists");
+                                }
+                                ResponseBody::Data(_) => {
+                                    panic!("wtf Data");
                                 }
                             }
                         }
-                    } else {
-                        // Either the pipeline is stopping or we are too busy to accept new chunks,
-                        // so only process responses.
-                        let resp = response_rx.recv().unwrap();
-                        in_flight_writes -= 1;
-                        match resp {
-                            ResponseBody::Success => {
-                                // nop
+                        recv(receiver) -> resp => {
+                            if let Ok((chunk_id, write)) = resp {
+                                in_flight_writes += 1;
+                                command_sender.send((RequestBody::Write {
+                                    kind: Keyspace::Chunk,
+                                    key: chunk_id.to_vec(),
+                                    value: write
+                                }, Some(response_tx.clone()))).unwrap();
+                            } else {
+                                // the input has stopped
+                                pipeline_still_going = false;
                             }
-                            ResponseBody::Failed(string) => {
-                                panic!("Requester pipeline fail {}", string);
-                            }
-                            other => panic!("wtf {:?}", other),
+                        }
+                    }
+                } else {
+                    // Either the pipeline is stopping or we are too busy to accept new chunks,
+                    // so only process responses.
+                    let resp = response_rx.recv().unwrap();
+                    match resp {
+                        ResponseBody::Success => {
+                            // nop
+                        }
+                        ResponseBody::Failed(string) => {
+                            panic!("Requester pipeline fail {}", string);
+                        }
+                        ResponseBody::BatchData { .. } => {
+                            panic!("wtf BatchData");
+                        }
+                        ResponseBody::NotExists => {
+                            panic!("wtf NotExists");
+                        }
+                        ResponseBody::Data(_) => {
+                            panic!("wtf Data");
                         }
                     }
                 }
-            })
-            .unwrap();
+            }
+        });
 
         Ok(input)
     }
-
-    fn describe_pipeline(&self) -> anyhow::Result<Vec<PipelineDescription>> {
-        match self.request(RequestBody::Describe)? {
-            ResponseBody::Description(mut description) => {
-                description.push(PipelineDescription::Remote);
-                Ok(description)
-            }
-            ResponseBody::Failed(err_msg) => Err(anyhow!("Remote failure: {}", err_msg)),
-            other => Err(anyhow!("Received {:?} for Describe", other)),
-        }
-    }
-
-    fn chunk_id_transfer_ordering_hint(&self, _chunk_id: &ChunkId) -> anyhow::Result<u64> {
-        bail!("You probably shouldn't be using chunk ID transfer ordering hints with a remote.");
-    }
 }
 
 pub struct ListKeyIterator {
@@ -475,6 +414,8 @@ impl Iterator for ListKeyIterator {
                     None
                 }
                 ResponseBody::Failed(err_msg) => Some(Err(anyhow!("Remote failure: {}", err_msg))),
+                ResponseBody::NotExists => Some(Err(anyhow!("Received NotExists for NextBatch."))),
+                ResponseBody::Data(_) => Some(Err(anyhow!("Received Data for NextBatch."))),
                 ResponseBody::BatchData { batch, next_token } => {
                     self.batch_token = Some(next_token);
                     self.buffer = batch;
@@ -486,7 +427,6 @@ impl Iterator for ListKeyIterator {
                         None
                     }
                 }
-                other => Some(Err(anyhow!("Received {:?} for NextBatch", other))),
             }
         } else {
             None

yama/src/remote/responder.rs

@@ -54,33 +54,26 @@ impl Responder {
             // spawn the reader
             let work_queue_send = work_queue_send.clone();
             let responder = responder.clone();
-            thread::Builder::new()
-                .name("RespdrReader".to_string())
-                .spawn(move || {
-                    let mut read = read;
-                    if let Err(e) = responder.reader(&mut read, work_queue_send, &mut progress_bar)
-                    {
-                        error!("reader failed: {:?}", e);
-                    }
-                    read
-                })
-                .unwrap()
+            thread::spawn(move || {
+                let mut read = read;
+                if let Err(e) = responder.reader(&mut read, work_queue_send, &mut progress_bar) {
+                    error!("reader failed: {:?}", e);
+                }
+                read
+            })
         };
 
         let w_handle = {
             // spawn the writer
             let resp_recv = resp_recv.clone();
             let responder = responder.clone();
-            thread::Builder::new()
-                .name("RespdrWriter".to_string())
-                .spawn(move || {
-                    let mut write = write;
-                    if let Err(e) = responder.writer(&mut write, resp_recv) {
-                        error!("writer failed: {:?}", e);
-                    }
-                    write
-                })
-                .unwrap()
+            thread::spawn(move || {
+                let mut write = write;
+                if let Err(e) = responder.writer(&mut write, resp_recv) {
+                    error!("writer failed: {:?}", e);
+                }
+                write
+            })
         };
 
         for worker_num in 0..num_workers {
@@ -89,17 +82,11 @@ impl Responder {
             let work_queue_recv = work_queue_recv.clone();
             let resp_send = resp_send.clone();
             let pile = pile.clone();
-            handles.push(
-                thread::Builder::new()
-                    .name("RespdrWorker".to_string())
-                    .spawn(move || {
-                        if let Err(e) = responder.worker(pile.as_ref(), work_queue_recv, resp_send)
-                        {
-                            error!("worker {} failed: {:?}", worker_num, e);
-                        }
-                    })
-                    .unwrap(),
-            );
+            handles.push(thread::spawn(move || {
+                if let Err(e) = responder.worker(pile.as_ref(), work_queue_recv, resp_send) {
+                    error!("worker {} failed: {:?}", worker_num, e);
+                }
+            }));
         }
 
         (r_handle, w_handle, handles)
@@ -262,7 +249,7 @@ impl Responder {
                                 .continuation_tokens
                                 .lock()
                                 .or(Err(anyhow!("Mutex poisoned")))?;
-                            let batch_token = (0u16..u16::MAX)
+                            let batch_token = (0u16..u16::max_value())
                                 .into_iter()
                                 .find(|id| !map.contains_key(&id))
                                 .expect("No ID found");
@@ -349,20 +336,6 @@ impl Responder {
                 RequestBody::Progress { .. } => {
                     unreachable!("handled by readea")
                 }
-                RequestBody::Describe => match pile.describe_pipeline() {
-                    Ok(description) => Response {
-                        response_to: request.id,
-                        body: ResponseBody::Description(description),
-                    },
-                    Err(err) => {
-                        warn!("Error whilst doing a raw describe_pipeline: {:?}", err);
-                        let err = format!("{:?}", err);
-                        Response {
-                            response_to: request.id,
-                            body: ResponseBody::Failed(err),
-                        }
-                    }
-                },
             };
 
             responses

yama/src/tree.rs

@@ -185,7 +185,7 @@ pub fn differentiate_node_in_place(new: &mut TreeNode, old: &TreeNode) -> anyhow
 /// result is in-place.
 ///
 /// Preconditions:
-/// - `old` must be an integrated pointer. (Otherwise this algorithm is not correct.)
+/// - `old` must be an integrated pointer.
 /// - `old` is the parent of `new`
 pub fn integrate_node_in_place(new: &mut TreeNode, old: &TreeNode) -> anyhow::Result<()> {
     if let TreeNode::Directory { children, .. } = new {

yama/src/utils.rs

@@ -15,7 +15,6 @@ You should have received a copy of the GNU General Public License
 along with Yama.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-use std::collections::{BTreeMap, BTreeSet};
 use std::fmt::Write;
 
 pub fn bytes_to_hexstring(chunkid: &[u8]) -> String {
@@ -43,98 +42,3 @@ pub fn get_number_of_workers(first_try_env_name: &str) -> u8 {
         }
     }
 }
-
-#[derive(Clone, Debug)]
-pub struct LruMap<K, V> {
-    capacity: usize,
-    last_access: BTreeSet<(u64, K)>,
-    items: BTreeMap<K, (V, u64)>,
-    counter: u64,
-}
-
-impl<K: Ord + Clone, V> LruMap<K, V> {
-    pub fn new(capacity: usize) -> LruMap<K, V> {
-        LruMap {
-            capacity,
-            last_access: BTreeSet::new(),
-            items: BTreeMap::new(),
-            counter: 0,
-        }
-    }
-
-    /// Gets an item from the LRU map.
-    pub fn get(&mut self, key: &K) -> Option<&V> {
-        match self.items.get_mut(key) {
-            Some((value, last_used_instant)) => {
-                assert!(
-                    self.last_access.remove(&(*last_used_instant, key.clone())),
-                    "Corrupt LRU map: freshen not correct."
-                );
-                let new_instant = self.counter;
-                self.counter += 1;
-                self.last_access.insert((new_instant, key.clone()));
-                *last_used_instant = new_instant;
-                Some(value)
-            }
-            None => None,
-        }
-    }
-
-    pub fn insert(&mut self, key: K, value: V) -> Option<V> {
-        let new_instant = self.counter;
-        self.counter += 1;
-
-        let retval = match self.items.insert(key.clone(), (value, new_instant)) {
-            Some((old_entry, old_instant)) => {
-                assert!(
-                    self.last_access.remove(&(old_instant, key.clone())),
-                    "Corrupt LRU map: insert not correct."
-                );
-                Some(old_entry)
-            }
-            None => None,
-        };
-        self.last_access.insert((new_instant, key));
-
-        if retval.is_none() {
-            // We didn't replace any item, so we have grown by 1.
-            // Check if we need to evict.
-            if self.items.len() > self.capacity {
-                self.evict();
-            }
-        }
-
-        retval
-    }
-
-    pub fn evict(&mut self) -> Option<(K, V)> {
-        if let Some(first_entry) = self.last_access.iter().next().cloned() {
-            self.last_access.remove(&first_entry);
-            let (_, key) = first_entry;
-            let (value, _) = self
-                .items
-                .remove(&key)
-                .expect("Corrupt LRU map: last access and items out of sync");
-
-            Some((key, value))
-        } else {
-            None
-        }
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use crate::utils::LruMap;
-
-    #[test]
-    fn test_lru_map() {
-        let mut lmap = LruMap::new(3);
-        lmap.insert(1, 1);
-        lmap.insert(2, 1);
-        lmap.insert(3, 1);
-        assert_eq!(lmap.get(&1), Some(&1));
-        lmap.insert(4, 1);
-        assert_eq!(lmap.get(&2), None);
-    }
-}