nix: Clean up build (#27881)

- bump our livekit version to include a fix for a crane bug (TODO: add
link when an issue is filed on crane)
- switch to a clang stdenv for both linux and macos
- manually unify versions of our notify crate
- remove old linker flags which were only needed for livekit
- fix an issue where RUSTFLAGS shadowed the rustflags from cargo configs

Release Notes:

- N/A

.cargo/config.toml

@@ -14,10 +14,10 @@ linker = "clang"
 rustflags = ["-C", "link-arg=-fuse-ld=mold"]
 
 [target.aarch64-apple-darwin]
-rustflags = ["-C", "link-args=-Objc -all_load"]
+rustflags = ["-C", "link-args=-all_load"]
 
 [target.x86_64-apple-darwin]
-rustflags = ["-C", "link-args=-Objc -all_load"]
+rustflags = ["-C", "link-args=-all_load"]
 
 [target.'cfg(target_os = "windows")']
 rustflags = [

.github/workflows/release_nightly.yml

@@ -184,9 +184,6 @@ jobs:
           - os: arm Mac
             runner: [macOS, ARM64, test]
             install_nix: false
-          - os: arm Linux
-            runner: buildjet-16vcpu-ubuntu-2204-arm
-            install_nix: true
     if: github.repository_owner == 'zed-industries'
     runs-on: ${{ matrix.system.runner }}
     needs: tests

Cargo.lock

@@ -5309,7 +5309,7 @@ dependencies = [
  "ignore",
  "libc",
  "log",
- "notify 8.0.0 (git+https://github.com/zed-industries/notify.git?rev=bbb9ea5ae52b253e095737847e367c30653a2e96)",
+ "notify",
  "objc",
  "parking_lot",
  "paths",
@@ -7717,7 +7717,7 @@ dependencies = [
 [[package]]
 name = "libwebrtc"
 version = "0.3.10"
-source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8#102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8"
+source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=ffc215666621cd903a689d1c56cce0a706ffe022#ffc215666621cd903a689d1c56cce0a706ffe022"
 dependencies = [
  "cxx",
  "jni",
@@ -7802,7 +7802,7 @@ checksum = "4ee93343901ab17bd981295f2cf0026d4ad018c7c31ba84549a4ddbb47a45104"
 [[package]]
 name = "livekit"
 version = "0.7.8"
-source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8#102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8"
+source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=ffc215666621cd903a689d1c56cce0a706ffe022#ffc215666621cd903a689d1c56cce0a706ffe022"
 dependencies = [
  "chrono",
  "futures-util",
@@ -7825,12 +7825,10 @@ dependencies = [
 [[package]]
 name = "livekit-api"
 version = "0.4.2"
-source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8#102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8"
+source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=ffc215666621cd903a689d1c56cce0a706ffe022#ffc215666621cd903a689d1c56cce0a706ffe022"
 dependencies = [
- "base64 0.21.7",
  "futures-util",
  "http 0.2.12",
- "jsonwebtoken",
  "livekit-protocol",
  "livekit-runtime",
  "log",
@@ -7841,7 +7839,6 @@ dependencies = [
  "reqwest 0.11.27",
  "scopeguard",
  "serde",
- "serde_json",
  "sha2",
  "thiserror 1.0.69",
  "tokio",
@@ -7852,7 +7849,7 @@ dependencies = [
 [[package]]
 name = "livekit-protocol"
 version = "0.3.9"
-source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8#102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8"
+source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=ffc215666621cd903a689d1c56cce0a706ffe022#ffc215666621cd903a689d1c56cce0a706ffe022"
 dependencies = [
  "futures-util",
  "livekit-runtime",
@@ -7869,7 +7866,7 @@ dependencies = [
 [[package]]
 name = "livekit-runtime"
 version = "0.4.0"
-source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8#102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8"
+source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=ffc215666621cd903a689d1c56cce0a706ffe022#ffc215666621cd903a689d1c56cce0a706ffe022"
 dependencies = [
  "tokio",
  "tokio-stream",
@@ -8239,7 +8236,7 @@ dependencies = [
  "ignore",
  "log",
  "memchr",
- "notify 8.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "notify",
  "notify-debouncer-mini",
  "once_cell",
  "opener",
@@ -8666,25 +8663,6 @@ dependencies = [
  "workspace",
 ]
 
-[[package]]
-name = "notify"
-version = "8.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2fee8403b3d66ac7b26aee6e40a897d85dc5ce26f44da36b8b73e987cc52e943"
-dependencies = [
- "bitflags 2.9.0",
- "filetime",
- "fsevent-sys 4.1.0",
- "inotify",
- "kqueue",
- "libc",
- "log",
- "mio",
- "notify-types 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "walkdir",
- "windows-sys 0.59.0",
-]
-
 [[package]]
 name = "notify"
 version = "8.0.0"
@@ -8698,7 +8676,7 @@ dependencies = [
  "libc",
  "log",
  "mio",
- "notify-types 2.0.0 (git+https://github.com/zed-industries/notify.git?rev=bbb9ea5ae52b253e095737847e367c30653a2e96)",
+ "notify-types",
  "walkdir",
  "windows-sys 0.59.0",
 ]
@@ -8710,17 +8688,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a689eb4262184d9a1727f9087cd03883ea716682ab03ed24efec57d7716dccb8"
 dependencies = [
  "log",
- "notify 8.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "notify",
- "notify-types 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "notify-types",
  "tempfile",
 ]
 
-[[package]]
-name = "notify-types"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e0826a989adedc2a244799e823aece04662b66609d96af8dff7ac6df9a8925d"
-
 [[package]]
 name = "notify-types"
 version = "2.0.0"
@@ -16191,7 +16163,7 @@ dependencies = [
 [[package]]
 name = "webrtc-sys"
 version = "0.3.7"
-source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8#102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8"
+source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=ffc215666621cd903a689d1c56cce0a706ffe022#ffc215666621cd903a689d1c56cce0a706ffe022"
 dependencies = [
  "cc",
  "cxx",
@@ -16204,7 +16176,7 @@ dependencies = [
 [[package]]
 name = "webrtc-sys-build"
 version = "0.3.6"
-source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8#102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8"
+source = "git+https://github.com/zed-industries/livekit-rust-sdks?rev=ffc215666621cd903a689d1c56cce0a706ffe022#ffc215666621cd903a689d1c56cce0a706ffe022"
 dependencies = [
  "fs2",
  "regex",

Cargo.toml

@@ -657,6 +657,8 @@ features = [
 [patch.crates-io]
 cpal = { git = "https://github.com/zed-industries/cpal", rev = "fd8bc2fd39f1f5fdee5a0690656caff9a26d9d50" }
 real-async-tls = { git = "https://github.com/zed-industries/async-tls", rev = "1e759a4b5e370f87dc15e40756ac4f8815b61d9d", package = "async-tls" }
+notify = { git = "https://github.com/zed-industries/notify.git", rev = "bbb9ea5ae52b253e095737847e367c30653a2e96" }
+notify-types = { git = "https://github.com/zed-industries/notify.git", rev = "bbb9ea5ae52b253e095737847e367c30653a2e96" }
 
 [profile.dev]
 split-debuginfo = "unpacked"

crates/fs/Cargo.toml

@@ -40,7 +40,7 @@ objc = "0.2"
 cocoa = "0.26"
 
 [target.'cfg(not(target_os = "macos"))'.dependencies]
-notify = { git = "https://github.com/zed-industries/notify.git", rev = "bbb9ea5ae52b253e095737847e367c30653a2e96" }
+notify = "8.0.0"
 
 [target.'cfg(target_os = "windows")'.dependencies]
 windows.workspace = true

crates/livekit_client/.cargo/config.toml

@@ -1,2 +0,0 @@
-[livekit_client_test]
-rustflags = ["-C", "link-args=-ObjC"]

crates/livekit_client/Cargo.toml

@@ -39,8 +39,8 @@ tokio-tungstenite.workspace = true
 util.workspace = true
 
 [target.'cfg(not(all(target_os = "windows", target_env = "gnu")))'.dependencies]
-libwebrtc = { rev = "102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8", git = "https://github.com/zed-industries/livekit-rust-sdks" }
+libwebrtc = { rev = "ffc215666621cd903a689d1c56cce0a706ffe022", git = "https://github.com/zed-industries/livekit-rust-sdks" }
-livekit = { rev = "102ebbb1ccfbdbcb7332d86dc30b1b1c8c01e4f8", git = "https://github.com/zed-industries/livekit-rust-sdks", features = ["__rustls-tls"] }
+livekit = { rev = "ffc215666621cd903a689d1c56cce0a706ffe022", git = "https://github.com/zed-industries/livekit-rust-sdks", features = ["__rustls-tls"] }
 
 [target.'cfg(target_os = "macos")'.dependencies]
 core-foundation.workspace = true

nix/build.nix

@@ -1,48 +1,49 @@
 {
   lib,
-  crane,
-  rustToolchain,
-  rustPlatform,
-  cmake,
-  copyDesktopItems,
-  fetchFromGitHub,
-  curl,
-  clang,
-  perl,
-  pkg-config,
-  protobuf,
-  fontconfig,
-  freetype,
-  libgit2,
-  openssl,
-  sqlite,
-  zlib,
-  zstd,
-  alsa-lib,
-  libxkbcommon,
-  wayland,
-  libglvnd,
-  xorg,
   stdenv,
-  makeFontsConf,
+
-  vulkan-loader,
-  envsubst,
-  cargo-about,
-  cargo-bundle,
-  git,
-  livekit-libwebrtc,
   apple-sdk_15,
   darwin,
   darwinMinVersionHook,
+
+  cargo-about,
+  cargo-bundle,
+  crane,
+  rustPlatform,
+  rustToolchain,
+
+  copyDesktopItems,
+  envsubst,
+  fetchFromGitHub,
+  makeFontsConf,
   makeWrapper,
+
+  alsa-lib,
+  cmake,
+  curl,
+  fontconfig,
+  freetype,
+  git,
+  libgit2,
+  libglvnd,
+  libxkbcommon,
+  livekit-libwebrtc,
   nodejs_22,
+  openssl,
+  perl,
+  pkg-config,
+  protobuf,
+  sqlite,
+  vulkan-loader,
+  wayland,
+  xorg,
+  zlib,
+  zstd,
 
   withGLES ? false,
   profile ? "release",
 }:
-
 assert withGLES -> stdenv.hostPlatform.isLinux;
-
 let
   mkIncludeFilter =
     root': path: type:
@@ -58,6 +59,7 @@ let
         "tooling"
         "Cargo.toml"
         ".config" # nextest?
+        ".cargo"
       ];
       firstComp = builtins.head (lib.path.subpath.components relPath);
     in
@@ -68,6 +70,7 @@ let
   commonArgs =
     let
       zedCargoLock = builtins.fromTOML (builtins.readFile ../crates/zed/Cargo.toml);
+      stdenv' = stdenv;
     in
     rec {
       pname = "zed-editor";
@@ -82,7 +85,6 @@ let
 
       nativeBuildInputs =
         [
-          clang # TODO: use pkgs.clangStdenv or ignore cargo config?
           cmake
           copyDesktopItems
           curl
@@ -92,8 +94,8 @@ let
           cargo-about
           rustPlatform.bindgenHook
         ]
-        ++ lib.optionals stdenv.hostPlatform.isLinux [ makeWrapper ]
+        ++ lib.optionals stdenv'.hostPlatform.isLinux [ makeWrapper ]
-        ++ lib.optionals stdenv.hostPlatform.isDarwin [
+        ++ lib.optionals stdenv'.hostPlatform.isDarwin [
           # TODO: move to overlay so it's usable in the shell
           (cargo-bundle.overrideAttrs (
             new: old: {
@@ -128,14 +130,14 @@ let
           zlib
           zstd
         ]
-        ++ lib.optionals stdenv.hostPlatform.isLinux [
+        ++ lib.optionals stdenv'.hostPlatform.isLinux [
           alsa-lib
           libxkbcommon
           wayland
           gpu-lib
           xorg.libxcb
         ]
-        ++ lib.optionals stdenv.hostPlatform.isDarwin [
+        ++ lib.optionals stdenv'.hostPlatform.isDarwin [
           apple-sdk_15
           darwin.apple_sdk.frameworks.System
           (darwinMinVersionHook "10.15")
@@ -143,6 +145,22 @@ let
 
       cargoExtraArgs = "-p zed -p cli --locked --features=gpui/runtime_shaders";
 
+      stdenv =
+        pkgs:
+        let
+          base = pkgs.llvmPackages.stdenv;
+          addBinTools = old: {
+            cc = old.cc.override {
+              inherit (pkgs.llvmPackages) bintools;
+            };
+          };
+          custom = lib.pipe base [
+            (stdenv: stdenv.override addBinTools)
+            pkgs.stdenvAdapters.useMoldLinker
+          ];
+        in
+        if stdenv'.hostPlatform.isLinux then custom else base;
+
       env = {
         ZSTD_SYS_USE_PKG_CONFIG = true;
         FONTCONFIG_FILE = makeFontsConf {
@@ -153,7 +171,6 @@ let
         };
         ZED_UPDATE_EXPLANATION = "Zed has been installed using Nix. Auto-updates have thus been disabled.";
         RELEASE_VERSION = version;
-        RUSTFLAGS = if withGLES then "--cfg gles" else "";
         LK_CUSTOM_WEBRTC = livekit-libwebrtc;
 
         CARGO_PROFILE = profile;
@@ -162,7 +179,7 @@ let
 
         # for some reason these deps being in buildInputs isn't enough, the only thing
         # about them that's special is that they're manually dlopened at runtime
-        NIX_LDFLAGS = lib.optionalString stdenv.hostPlatform.isLinux "-rpath ${
+        NIX_LDFLAGS = lib.optionalString stdenv'.hostPlatform.isLinux "-rpath ${
           lib.makeLibraryPath [
             gpu-lib
             wayland
@@ -171,7 +188,7 @@ let
       };
 
       # prevent nix from removing the "unused" wayland/gpu-lib rpaths
-      dontPatchELF = stdenv.hostPlatform.isLinux;
+      dontPatchELF = stdenv'.hostPlatform.isLinux;
 
       # TODO: try craneLib.cargoNextest separate output
       # for now we're not worried about running our test suite (or tests for deps) in the nix sandbox
@@ -182,13 +199,24 @@ let
         overrideVendorGitCheckout =
           let
             hasWebRtcSys = builtins.any (crate: crate.name == "webrtc-sys");
+            # we can't set $RUSTFLAGS because that clobbers the cargo config
+            # see https://github.com/rust-lang/cargo/issues/5376#issuecomment-2163350032
+            glesConfig = builtins.toFile "config.toml" ''
+              [target.'cfg(all())']
+              rustflags = ["--cfg", "gles"]
+            '';
+
             # `webrtc-sys` expects a staticlib; nixpkgs' `livekit-webrtc` has been patched to
             # produce a `dylib`... patching `webrtc-sys`'s build script is the easier option
             # TODO: send livekit sdk a PR to make this configurable
-            postPatch = ''
+            postPatch =
-              substituteInPlace webrtc-sys/build.rs --replace-fail \
+              ''
-                "cargo:rustc-link-lib=static=webrtc" "cargo:rustc-link-lib=dylib=webrtc"
+                substituteInPlace webrtc-sys/build.rs --replace-fail \
-            '';
+                  "cargo:rustc-link-lib=static=webrtc" "cargo:rustc-link-lib=dylib=webrtc"
+              ''
+              + lib.optionalString withGLES ''
+                cat ${glesConfig} >> .cargo/config/config.toml
+              '';
           in
           crates: drv:
           if hasWebRtcSys crates then

nix/shell.nix

@@ -1,7 +1,5 @@
 {
   mkShell,
-  stdenv,
-  stdenvAdapters,
   makeFontsConf,
 
   zed-editor,
@@ -12,12 +10,7 @@
   protobuf,
   nodejs_22,
 }:
-let
+(mkShell.override { inherit (zed-editor) stdenv; }) {
-  moldStdenv = stdenvAdapters.useMoldLinker stdenv;
-  mkShell' =
-    if stdenv.hostPlatform.isLinux then mkShell.override { stdenv = moldStdenv; } else mkShell;
-in
-mkShell' {
   inputsFrom = [ zed-editor ];
   packages = [
     rust-analyzer