docs: update readme to include repo arg (#5)

This commit adds `-r` and `--repository` documentation to the README.md
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@ -1,4 +1,4 @@
# gh-stack [![Check if compilation works; no tests yet!](https://api.travis-ci.org/timothyandrew/gh-stack.svg?branch=master&status=passed)](https://travis-ci.org/timothyandrew/gh-stack) # gh-stack
I use this tool to help managed stacked pull requests on Github, which are notoriously difficult to manage manually. Here are a few examples: I use this tool to help managed stacked pull requests on Github, which are notoriously difficult to manage manually. Here are a few examples:
@ -26,11 +26,8 @@ It then looks for all PRs containing this containing this identifier and builds
- [Strategy](#strategy) - [Strategy](#strategy)
- [Disclaimer](#disclaimer) - [Disclaimer](#disclaimer)
## Installation ## Installation
Building from source is the only option at the moment:
```bash ```bash
# Install Rust # Install Rust
$ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh $ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
@ -42,6 +39,13 @@ $ export PATH="$HOME/.cargo/bin:$PATH"
$ cargo install gh-stack $ cargo install gh-stack
``` ```
If you cloned this repository, you can build and install from source with:
```bash
$ cd gh-stack
$ cargo install --force --path .
```
## Usage ## Usage
```bash ```bash
@ -61,17 +65,23 @@ SUBCOMMANDS:
log Print a list of all pull requests in a stack to STDOUT log Print a list of all pull requests in a stack to STDOUT
rebase Print a bash script to STDOUT that can rebase/update the stack (with a little help) rebase Print a bash script to STDOUT that can rebase/update the stack (with a little help)
# Print a description of the stack to stdout.
$ gh-stack log 'stack-identifier'
# Same as above, but for a specific repository.
$ gh-stack log 'stack-identifier' -r 'repo-name'
# Idempotently add a markdown table summarizing the stack # Idempotently add a markdown table summarizing the stack
# to the description of each PR in the stack. # to the description of each PR in the stack.
$ gh-stack annotate 'stack-identifier' $ gh-stack annotate 'stack-identifier'
# Same as above, but for a specific repository.
$ gh-stack annotate 'stack-identifier' -r 'repo-name'
# Same as above, but precede the markdown table with the # Same as above, but precede the markdown table with the
# contents of `filename.txt`. # contents of `filename.txt`.
$ gh-stack annotate 'stack-identifier' -p filename.txt $ gh-stack annotate 'stack-identifier' -p filename.txt
# Print a description of the stack to stdout.
$ gh-stack log 'stack-identifier'
# Automatically update the entire stack, both locally and remotely. # Automatically update the entire stack, both locally and remotely.
# WARNING: This operation modifies local branches and force-pushes. # WARNING: This operation modifies local branches and force-pushes.
$ gh-stack autorebase 'stack-identifier' -C /path/to/repo $ gh-stack autorebase 'stack-identifier' -C /path/to/repo
@ -83,145 +93,156 @@ $ gh-stack rebase 'stack-identifier'
### Examples ### Examples
*This is a quick overview of the ways this tool could be used in practice.* _This is a quick overview of the ways this tool could be used in practice._
1. Write some code, create local commits/branches: 1. Write some code, create local commits/branches:
```bash
$ git checkout -b first
# Write code
$ git add -A; git commit -m 'first'
$ git checkout -b second ```bash
# Write code $ git checkout -b first
$ git add -A; git commit -m 'second #1' # Write code
# Write code $ git add -A; git commit -m 'first'
$ git add -A; git commit -m 'second #2'
$ git checkout -b third $ git checkout -b second
# Write code # Write code
$ git add -A; git commit -m 'third' $ git add -A; git commit -m 'second #1'
``` # Write code
$ git add -A; git commit -m 'second #2'
$ git checkout -b third
# Write code
$ git add -A; git commit -m 'third'
```
2. Your Git tree now looks like: 2. Your Git tree now looks like:
```bash
* 42315c4 U - (third) third ```bash
| * 42315c4 U - (third) third
* 6db2c28 U - (second) second #2 |
| * 6db2c28 U - (second) second #2
* 5746a83 U - second #1 |
| * 5746a83 U - second #1
* e845ded U - (first) first |
| * e845ded U - (first) first
* 8031011 U - initial commit |
``` * 8031011 U - initial commit
```
3. Push each branch: 3. Push each branch:
```bash
$ git push origin first:first second:second third:third ```bash
* [new branch] first -> first $ git push origin first:first second:second third:third
* [new branch] second -> second * [new branch] first -> first
* [new branch] third -> third * [new branch] second -> second
``` * [new branch] third -> third
```
4. Create a PR for each new branch (starting at `first`), and: 4. Create a PR for each new branch (starting at `first`), and:
- Ensure that all the PRs have a common identifier in their title (I'll use `[EXAMPLE-17399]` here). This identifier (currently) is required to be unique across all GitHub repositories accessible to you (including _all_ public repositories).
- Set the `base` for each PR to the branch preceding it. Here, `first`'s PR is set to merge into `master`, `second`'s PR is set to merge into `first`, and `third`'s PR is set to merge into `second`. - Ensure that all the PRs have a common identifier in their title (I'll use `[EXAMPLE-17399]` here). ~This identifier (currently) is required to be unique across all GitHub repositories accessible to you (including _all_ public repositories).~
- It is recommended that you use the `-r` flag to specify the repository you want gh-stack to search for PRs in. Otherwise, gh-stack will search all repositories accessible to you. This can result in matches from multiple repositories that are unrelated to the stack.
- Set the `base` for each PR to the branch preceding it. Here, `first`'s PR is set to merge into `master`, `second`'s PR is set to merge into `first`, and `third`'s PR is set to merge into `second`.
5. Log all PRs in the stack: 5. Log all PRs in the stack:
```bash
$ gh-stack log 'EXAMPLE-13799' ```bash
#1: [EXAMPLE-13799] PR for branch `first` (Base) $ gh-stack log 'EXAMPLE-13799' -r 'example_user/example-repo'
#2: [EXAMPLE-13799] PR for branch `second` (Merges into #1) #1: [EXAMPLE-13799] PR for branch `first` (Base)
#3: [EXAMPLE-13799] PR for branch `third` (Merges into #2) #2: [EXAMPLE-13799] PR for branch `second` (Merges into #1)
``` #3: [EXAMPLE-13799] PR for branch `third` (Merges into #2)
```
6. Annotate all PRs with information about the stack: 6. Annotate all PRs with information about the stack:
```bash
$ gh-stack annotate 'EXAMPLE-13799' ```bash
1: [EXAMPLE-13799] PR for branch `first` $ gh-stack annotate 'EXAMPLE-13799' -r 'example_user/example-repo'
2: [EXAMPLE-13799] PR for branch `second` 1: [EXAMPLE-13799] PR for branch `first`
3: [EXAMPLE-13799] PR for branch `third` 2: [EXAMPLE-13799] PR for branch `second`
Going to update these PRs ☝️ Type 'yes' to continue: yes 3: [EXAMPLE-13799] PR for branch `third`
Done! Going to update these PRs ☝️ Type 'yes' to continue: yes
``` Done!
```
This (idempotently) adds a table like this to the description of every PR in the stack: This (idempotently) adds a table like this to the description of every PR in the stack:
<img src="img/annotate.png" width="700" /> <img src="img/annotate.png" width="700" />
7. Make changes to a branch that rewrites commits in some way (amend, remove a commit, combine commits): 7. Make changes to a branch that rewrites commits in some way (amend, remove a commit, combine commits):
```bash
$ git checkout first ```bash
# Do some work $ git checkout first
$ git add -A; git commit --amend -m 'amended first' # Do some work
``` $ git add -A; git commit --amend -m 'amended first'
```
History has now diverged, and this will cause conflicts with dependent PRs when `first` is (force-)pushed. History has now diverged, and this will cause conflicts with dependent PRs when `first` is (force-)pushed.
```bash
* e7cb9c6 U - (HEAD -> first) amended first
|
| * 42315c4 N - (origin/third, third) third
| |
| * 6db2c28 N - (origin/second, second) second #2
| |
| * 5746a83 N - second #1
| |
| * e845ded N - (origin/first) first
|/
|
* 8031011 U - (origin/master, master) initial commit
```
8. Use the `autorebase` subcommand to fix this inconsistency (it requires a path to a local checkout of the repository):
```bash
$ gh-stack autorebase --repo /tmp/test EXAMPLE-13799
Checking out Commit { id: 803101159653bf4bf92bf098e577abc436458b17, summary: "initial commit" }
Working on PR: "first"
Cherry-picking: Commit { id: e7cb9c6cdb03374a6c533cbf1fc23a7d611a73c7, summary: "amended first" }
Working on PR: "second"
Cherry-picking: Commit { id: 5746a83aed004d0867d52d40efc9bd800b5b7499, summary: "second #1" }
Cherry-picking: Commit { id: 6db2c2817dfed244d5fbd8cbb9b8095965ac9a05, summary: "second #2" }
Working on PR: "third"
Cherry-picking: Commit { id: 42315c46b42044ebc4b57a995a75b97699f4855a, summary: "third" }
["b45e5838a93b33411a5f0c9f726bc1987bc71ff5:refs/heads/first", "93170d2199ed9c2ae30d1e7492947acf477fb035:refs/heads/second", "a85a1931c44c3138d993128591af2cad2ef6c68d:refs/heads/third"]
Going to push these refspecs ☝️ Type 'yes' to continue: yes
Enumerating objects: 12, done.
Counting objects: 100% (12/12), done.
Delta compression using up to 8 threads
Compressing objects: 100% (8/8), done.
Writing objects: 100% (11/11), 907 bytes | 453.00 KiB/s, done.
Total 11 (delta 3), reused 0 (delta 0)
remote: Resolving deltas: 100% (3/3), done.
To github.com:timothyandrew/test.git
+ e845ded...b45e583 b45e5838a93b33411a5f0c9f726bc1987bc71ff5 -> first (forced update)
+ 6db2c28...93170d2 93170d2199ed9c2ae30d1e7492947acf477fb035 -> second (forced update)
+ 42315c4...a85a193 a85a1931c44c3138d993128591af2cad2ef6c68d -> third (forced update)
Updating local branches so they point to the new stack.
+ Branch first now points to b45e5838a93b33411a5f0c9f726bc1987bc71ff5
+ Branch second now points to 93170d2199ed9c2ae30d1e7492947acf477fb035
+ Branch third now points to a85a1931c44c3138d993128591af2cad2ef6c68d
All done!
```
- This restores local history to a flat list and pushes the tip of each branch up to update the PRs themselves.
```bash ```bash
* e7cb9c6 U - (HEAD -> first) amended first * a85a193 N - (HEAD, origin/third, third) third
| |
| * 42315c4 N - (origin/third, third) third * 93170d2 N - (origin/second, second) second #2
| | |
| * 6db2c28 N - (origin/second, second) second #2 * 61f64b6 N - second #1
| | |
| * 5746a83 N - second #1 * b45e583 N - (origin/first, first) amended first
| |
| * e845ded N - (origin/first) first
|/
| |
* 8031011 U - (origin/master, master) initial commit * 8031011 U - (origin/master, master) initial commit
``` ```
8. Use the `autorebase` subcommand to fix this inconsistency (it requires a path to a local checkout of the repository): - If conflicts are encountered, `autorebase` will pause and allow you to fix the conflicts before resuming.
```bash
$ gh-stack autorebase --repo /tmp/test EXAMPLE-13799
Checking out Commit { id: 803101159653bf4bf92bf098e577abc436458b17, summary: "initial commit" }
Working on PR: "first"
Cherry-picking: Commit { id: e7cb9c6cdb03374a6c533cbf1fc23a7d611a73c7, summary: "amended first" }
Working on PR: "second"
Cherry-picking: Commit { id: 5746a83aed004d0867d52d40efc9bd800b5b7499, summary: "second #1" }
Cherry-picking: Commit { id: 6db2c2817dfed244d5fbd8cbb9b8095965ac9a05, summary: "second #2" }
Working on PR: "third"
Cherry-picking: Commit { id: 42315c46b42044ebc4b57a995a75b97699f4855a, summary: "third" }
["b45e5838a93b33411a5f0c9f726bc1987bc71ff5:refs/heads/first", "93170d2199ed9c2ae30d1e7492947acf477fb035:refs/heads/second", "a85a1931c44c3138d993128591af2cad2ef6c68d:refs/heads/third"]
Going to push these refspecs ☝️ Type 'yes' to continue: yes
Enumerating objects: 12, done.
Counting objects: 100% (12/12), done.
Delta compression using up to 8 threads
Compressing objects: 100% (8/8), done.
Writing objects: 100% (11/11), 907 bytes | 453.00 KiB/s, done.
Total 11 (delta 3), reused 0 (delta 0)
remote: Resolving deltas: 100% (3/3), done.
To github.com:timothyandrew/test.git
+ e845ded...b45e583 b45e5838a93b33411a5f0c9f726bc1987bc71ff5 -> first (forced update)
+ 6db2c28...93170d2 93170d2199ed9c2ae30d1e7492947acf477fb035 -> second (forced update)
+ 42315c4...a85a193 a85a1931c44c3138d993128591af2cad2ef6c68d -> third (forced update)
Updating local branches so they point to the new stack.
+ Branch first now points to b45e5838a93b33411a5f0c9f726bc1987bc71ff5
+ Branch second now points to 93170d2199ed9c2ae30d1e7492947acf477fb035
+ Branch third now points to a85a1931c44c3138d993128591af2cad2ef6c68d
All done!
```
- This restores local history to a flat list and pushes the tip of each branch up to update the PRs themselves.
```bash
* a85a193 N - (HEAD, origin/third, third) third
|
* 93170d2 N - (origin/second, second) second #2
|
* 61f64b6 N - second #1
|
* b45e583 N - (origin/first, first) amended first
|
* 8031011 U - (origin/master, master) initial commit
```
- If conflicts are encountered, `autorebase` will pause and allow you to fix the conflicts before resuming.
## Strategy ## Strategy
@ -242,3 +263,11 @@ Use at your own risk (and make sure your git repository is backed up), especiall
- This tool works for my specific use case, but has _not_ been extensively tested. - This tool works for my specific use case, but has _not_ been extensively tested.
- I've been writing Rust for all of 3 weeks at this point. - I've been writing Rust for all of 3 weeks at this point.
- The `autorebase` command is in an experimental state; there are possibly edge cases I haven't considered. - The `autorebase` command is in an experimental state; there are possibly edge cases I haven't considered.
## Contributors
Contributors are encouraged to submit pull requests to improve the tool. Please stick to semantic versioning and don't submit pull requests that break the tool.
## Credits
This README and tool were originally written by [@timothyandrew](https://github.com/timothyandrew/gh-stack). I highly recommend reading his blog post [here](https://0xc0d1.com/blog/git-stack/).