.gitattributes

@@ -1,10 +1,14 @@
 # `git apply` and friends don't understand CRLF, even on windows. Force those
 # files to be checked out with LF endings even if core.autocrlf is true.
+*.patch text eol=lf
 DEPS text eol=lf
 yarn.lock text eol=lf
 script/zip_manifests/*.manifest text eol=lf
 patches/**/.patches merge=union
 
+# Patch file line ending exceptions (patches that affect CRLF files)
+reland_lzma_sdk_update_to_24_09.patch -text
+
 # Source code and markdown files should always use LF as line ending.
 *.c text eol=lf
 *.cc text eol=lf

.github/actions/checkout/action.yml

@@ -9,6 +9,8 @@ inputs:
     description: 'Whether to persist the cache to the shared drive'
     required: false
     default: 'true'
+  target-platform:
+    description: 'Target platform, should be linux, win, macos'    
 runs:
   using: "composite"
   steps:
@@ -18,40 +20,34 @@ runs:
       echo "GIT_CACHE_PATH=$(pwd)/git-cache" >> $GITHUB_ENV
   - name: Install Dependencies
     uses: ./src/electron/.github/actions/install-dependencies
-  - name: Install Build Tools
-    uses: ./src/electron/.github/actions/install-build-tools
   - name: Set Chromium Git Cookie
     uses: ./src/electron/.github/actions/set-chromium-cookie
-  - name: Get Depot Tools
-    shell: bash
-    run: |
-      if [[ ! -d depot_tools ]]; then
-        git clone --depth=1 https://chromium.googlesource.com/chromium/tools/depot_tools.git
-
-        # Ensure depot_tools does not update.
-        test -d depot_tools && cd depot_tools
-        touch .disable_auto_update
-      fi
-  - name: Add Depot Tools to PATH
-    shell: bash
-    run: echo "$(pwd)/depot_tools" >> $GITHUB_PATH
+  - name: Install Build Tools
+    uses: ./src/electron/.github/actions/install-build-tools
   - name: Generate DEPS Hash
     shell: bash
     run: |
       node src/electron/script/generate-deps-hash.js
-      echo "DEPSHASH=v1-src-cache-$(cat src/electron/.depshash)" >> $GITHUB_ENV
+      DEPSHASH="v1-src-cache-$(cat src/electron/.depshash)"
+      echo "DEPSHASH=$DEPSHASH" >> $GITHUB_ENV
+      echo "CACHE_FILE=$DEPSHASH.tar" >> $GITHUB_ENV
+      if [ "${{ inputs.target-platform }}" = "win" ]; then
+        echo "CACHE_DRIVE=/mnt/win-cache" >> $GITHUB_ENV
+      else
+        echo "CACHE_DRIVE=/mnt/cross-instance-cache" >> $GITHUB_ENV
+      fi
   - name: Generate SAS Key
     if: ${{ inputs.generate-sas-token == 'true' }}
     shell: bash
     run: |
-      curl --unix-socket /var/run/sas/sas.sock --fail "http://foo/$DEPSHASH.tar" > sas-token
+      curl --unix-socket /var/run/sas/sas.sock --fail "http://foo/$CACHE_FILE?platform=${{ inputs.target-platform }}" > sas-token
   - name: Save SAS Key
     if: ${{ inputs.generate-sas-token == 'true' }}
-    uses: actions/cache/save@1bd1e32a3bdc45362d1e726936510720a7c30a57
+    uses: actions/cache/save@d4323d4df104b026a6aa633fdb11d772146be0bf
     with:
-      path: |
-        sas-token
-      key: sas-key-${{ github.run_number }}-${{ github.run_attempt }}
+      path: sas-token
+      key: sas-key-${{ inputs.target-platform }}-${{ github.run_number }}-${{ github.run_attempt }}
+      enableCrossOsArchive: true
   - name: Check If Cache Exists
     id: check-cache
     shell: bash
@@ -60,7 +56,7 @@ runs:
         echo "Not using cache this time..."
         echo "cache_exists=false" >> $GITHUB_OUTPUT
       else
-        cache_path=/mnt/cross-instance-cache/$DEPSHASH.tar
+        cache_path=$CACHE_DRIVE/$CACHE_FILE
         echo "Using cache key: $DEPSHASH"
         echo "Checking for cache in: $cache_path"
         if [ ! -f "$cache_path" ] || [ `du $cache_path | cut -f1` = "0" ]; then
@@ -76,8 +72,8 @@ runs:
     shell: bash
     run: |    
       # if there is less than 35 GB free space then creating the cache might fail so exit early
-      freespace=`df -m /mnt/cross-instance-cache | grep -w /mnt/cross-instance-cache | awk '{print $4}'`
-      freespace_human=`df -h /mnt/cross-instance-cache | grep -w /mnt/cross-instance-cache | awk '{print $4}'`
+      freespace=`df -m $CACHE_DRIVE | grep -w $CACHE_DRIVE | awk '{print $4}'`
+      freespace_human=`df -h $CACHE_DRIVE | grep -w $CACHE_DRIVE | awk '{print $4}'`
       if [ $freespace -le 35000 ]; then
         echo "The cross mount cache has $freespace_human free space which is not enough - exiting"
         exit 1
@@ -99,7 +95,7 @@ runs:
       fi
 
       ELECTRON_USE_THREE_WAY_MERGE_FOR_PATCHES=1 e d gclient sync --with_branch_heads --with_tags -vv
-      if [[ "${{ inputs.is-release }}" != "true" && -n "${{ env.PATCH_UP_APP_CREDS }}" ]]; then
+      if [[ "${{ inputs.is-release }}" != "true" ]]; then
         # Re-export all the patches to check if there were changes.
         python3 src/electron/script/export_all_patches.py src/electron/patches/config.json
         cd src/electron
@@ -167,14 +163,14 @@ runs:
     shell: bash
     run: |
       echo "Uncompressed src size: $(du -sh src | cut -f1 -d' ')"
-      tar -cf $DEPSHASH.tar src
-      echo "Compressed src to $(du -sh $DEPSHASH.tar | cut -f1 -d' ')"
-      cp ./$DEPSHASH.tar /mnt/cross-instance-cache/
+      tar -cf $CACHE_FILE src
+      echo "Compressed src to $(du -sh $CACHE_FILE | cut -f1 -d' ')"
+      cp ./$CACHE_FILE $CACHE_DRIVE/
   - name: Persist Src Cache
     if: ${{ steps.check-cache.outputs.cache_exists == 'false' && inputs.use-cache == 'true' }}
     shell: bash
     run: |
-      final_cache_path=/mnt/cross-instance-cache/$DEPSHASH.tar
+      final_cache_path=$CACHE_DRIVE/$CACHE_FILE
       echo "Using cache key: $DEPSHASH"
       echo "Checking path: $final_cache_path"
       if [ ! -f "$final_cache_path" ]; then

.github/actions/cipd-install/action.yml

@@ -0,0 +1,40 @@
+name: 'CIPD install'
+description: 'Installs the specified CIPD package'
+inputs:
+  cipd-root-prefix-path:
+    description: 'Path to prepend to installation directory'
+    default: ''
+  dependency:
+    description: 'Name of dependency to install'
+  deps-file:
+    description: 'Location of DEPS file that defines the dependency'
+  installation-dir:
+    description: 'Location to install dependency'
+  target-platform:
+    description: 'Target platform, should be linux, win, macos'
+  package:
+    description: 'Package to install'
+runs:
+  using: "composite"
+  steps:
+    - name: Delete wrong ${{ inputs.dependency }}
+      shell: bash
+      run : |
+        rm -rf ${{ inputs.cipd-root-prefix-path }}${{ inputs.installation-dir }}
+    - name: Create ensure file for ${{ inputs.dependency }}
+      shell: bash
+      run: |
+        echo '${{ inputs.package }}' `e d gclient getdep --deps-file=${{ inputs.deps-file }} -r '${{ inputs.installation-dir }}:${{ inputs.package }}'` > ${{ inputs.dependency }}_ensure_file
+        cat ${{ inputs.dependency }}_ensure_file
+    - name: CIPD installation of ${{ inputs.dependency }} (macOS)
+      if: ${{ inputs.target-platform == 'macos' }}
+      shell: bash
+      run: |
+        echo "ensuring ${{ inputs.dependency }} on macOS"
+        e d cipd ensure --root ${{ inputs.cipd-root-prefix-path }}${{ inputs.installation-dir }} -ensure-file ${{ inputs.dependency }}_ensure_file
+    - name: CIPD installation of ${{ inputs.dependency }} (Windows)
+      if: ${{ inputs.target-platform == 'win' }}
+      shell: powershell
+      run: |
+        echo "ensuring ${{ inputs.dependency }} on Windows"
+        e d cipd ensure --root ${{ inputs.cipd-root-prefix-path }}${{ inputs.installation-dir }} -ensure-file ${{ inputs.dependency }}_ensure_file

.github/actions/fix-sync/action.yml

@@ -0,0 +1,120 @@
+name: 'Fix Sync'
+description: 'Ensures proper binaries are in place'
+# This action is required to correct for differences between "gclient sync"
+# on Linux and the expected state on macOS/windows. This requires:
+# 1. Fixing Clang Install (wrong binary)
+# 2. Fixing esbuild (wrong binary)
+# 3. Fixing rustc (wrong binary)
+# 4. Fixing gn (wrong binary)
+# 5. Fix reclient (wrong binary)
+# 6. Fixing dsymutil (wrong binary)
+# 7. Ensuring we are using the correct ninja and adding it to PATH
+# 8. Fixing angle (wrong remote)
+# 9. Install windows toolchain on Windows
+# 10. Fix node binary on Windows
+# 11. Fix rc binary on Windows
+inputs:
+  target-platform:
+    description: 'Target platform, should be linux, win, macos'
+runs:
+  using: "composite"
+  steps:
+    - name: Fix clang
+      shell: bash
+      run : |
+        rm -rf src/third_party/llvm-build
+        python3 src/tools/clang/scripts/update.py
+    - name: Fix esbuild
+      uses: ./src/electron/.github/actions/cipd-install
+      with:
+        cipd-root-prefix-path: src/third_party/devtools-frontend/src/
+        dependency: esbuild
+        deps-file: src/third_party/devtools-frontend/src/DEPS
+        installation-dir: third_party/esbuild
+        target-platform: ${{ inputs.target-platform }}
+        package: infra/3pp/tools/esbuild/${platform}
+    - name: Fix rustc
+      shell: bash
+      run : |
+        rm -rf src/third_party/rust-toolchain
+        python3 src/tools/rust/update_rust.py
+    - name: Fix gn (macOS)
+      if: ${{ inputs.target-platform == 'macos' }}
+      uses: ./src/electron/.github/actions/cipd-install
+      with:
+        dependency: gn
+        deps-file: src/DEPS
+        installation-dir: src/buildtools/mac
+        target-platform: ${{ inputs.target-platform }}
+        package: gn/gn/mac-${arch}
+    - name: Fix gn (Windows)
+      if: ${{ inputs.target-platform == 'win' }}
+      uses: ./src/electron/.github/actions/cipd-install
+      with:
+        dependency: gn
+        deps-file: src/DEPS
+        installation-dir: src/buildtools/win 
+        target-platform: ${{ inputs.target-platform }}
+        package: gn/gn/windows-amd64
+    - name: Fix reclient
+      uses: ./src/electron/.github/actions/cipd-install
+      with:
+        dependency: reclient
+        deps-file: src/DEPS
+        installation-dir: src/buildtools/reclient
+        target-platform: ${{ inputs.target-platform }}
+        package: infra/rbe/client/${platform}
+    - name: Configure reclient configs
+      shell: bash
+      run : |
+        python3 src/buildtools/reclient_cfgs/configure_reclient_cfgs.py --rbe_instance "projects/rbe-chrome-untrusted/instances/default_instance" --reproxy_cfg_template reproxy.cfg.template --rewrapper_cfg_project "" --skip_remoteexec_cfg_fetch
+    - name: Fix dsymutil (macOS)
+      if: ${{ inputs.target-platform == 'macos' }}
+      shell: bash
+      run : |
+        # Fix dsymutil
+        if [ "${{ inputs.target-platform }}" = "macos" ]; then
+          if  [ "${{ env.TARGET_ARCH }}" == "arm64" ]; then
+            DSYM_SHA_FILE=src/tools/clang/dsymutil/bin/dsymutil.arm64.sha1
+          else
+            DSYM_SHA_FILE=src/tools/clang/dsymutil/bin/dsymutil.x64.sha1
+          fi
+          python3 src/third_party/depot_tools/download_from_google_storage.py --no_resume --no_auth --bucket chromium-browser-clang -s $DSYM_SHA_FILE -o src/tools/clang/dsymutil/bin/dsymutil
+        fi
+    - name: Fix ninja
+      uses: ./src/electron/.github/actions/cipd-install
+      with:
+        dependency: ninja
+        deps-file: src/DEPS
+        installation-dir: src/third_party/ninja
+        target-platform: ${{ inputs.target-platform }}
+        package: infra/3pp/tools/ninja/${platform}
+    - name: Set ninja in path
+      shell: bash
+      run : |
+        echo "$(pwd)/src/third_party/ninja" >> $GITHUB_PATH
+    - name: Fixup angle git
+      shell: bash
+      run : |
+        cd src/third_party/angle
+        rm -f .git/objects/info/alternates
+        git remote set-url origin https://chromium.googlesource.com/angle/angle.git
+        cp .git/config .git/config.backup
+        git remote remove origin
+        mv .git/config.backup .git/config
+        git fetch
+    - name: Get Windows toolchain
+      if: ${{ inputs.target-platform == 'win' }}
+      shell: powershell
+      run: e d vpython3 src\build\vs_toolchain.py update --force
+    - name: Download nodejs
+      if: ${{ inputs.target-platform == 'win' }}
+      shell: powershell
+      run: |
+        $nodedeps = e d gclient getdep --deps-file=src/DEPS -r src/third_party/node/win | ConvertFrom-JSON
+        python3 src\third_party\depot_tools\download_from_google_storage.py --no_resume --no_auth --bucket chromium-nodejs -o src\third_party\node\win\node.exe $nodedeps.object_name
+    - name: Install rc
+      if: ${{ inputs.target-platform == 'win' }}
+      shell: bash
+      run: |
+        python3 src/third_party/depot_tools/download_from_google_storage.py --no_resume --no_auth --bucket chromium-browser-clang/rc -s src/build/toolchain/win/rc/win/rc.exe.sha1

.github/actions/install-build-tools/action.yml

@@ -14,7 +14,9 @@ runs:
       export BUILD_TOOLS_SHA=8246e57791b0af4ae5975eb96f09855f9269b1cd
       npm i -g @electron/build-tools
       e auto-update disable
+      e d auto-update disable
       if [ "$(expr substr $(uname -s) 1 10)" == "MSYS_NT-10" ]; then
         e d cipd.bat --version
         cp "C:\Python311\python.exe" "C:\Python311\python3.exe"
       fi
+      echo "$HOME/.electron_build_tools/third_party/depot_tools" >> $GITHUB_PATH

.github/actions/restore-cache-aks/action.yml

@@ -1,12 +1,20 @@
 name: 'Restore Cache AKS'
 description: 'Restores Electron src cache via AKS'
+inputs:
+  target-platform:
+    description: 'Target platform, should be linux, win, macos'
 runs:
   using: "composite"
   steps:
   - name: Restore and Ensure Src Cache
     shell: bash
     run: |
-      cache_path=/mnt/cross-instance-cache/$DEPSHASH.tar
+      if [ "${{ inputs.target-platform }}" = "win" ]; then
+        cache_path=/mnt/win-cache/$DEPSHASH.tar
+      else
+        cache_path=/mnt/cross-instance-cache/$DEPSHASH.tar
+      fi
+
       echo "Using cache key: $DEPSHASH"
       echo "Checking for cache in: $cache_path"
       if [ ! -f "$cache_path" ]; then