[Workflows] Re-write release-binaries workflow (#89521)

This updates the release-binaries workflow so that the different build
stages are split across multiple jobs. This saves money by reducing the
time spent on the larger github runners and also makes it easier to
debug, because now it's possible to build a smaller release package
(with clang and lld) using only the free GitHub runners.

The workflow no longer uses the test-release.sh script but instead uses
the Release.cmake cache. This gives the workflow more flexibility and
ensures that the binary package will always be created even if the tests
fail.

This idea to split the stages comes from the "LLVM Precommit CI through
Github Actions" RFC:

https://discourse.llvm.org/t/rfc-llvm-precommit-ci-through-github-actions/76456
(cherry picked from commit abac98479b81cc0cc717bb6cdbae6f774e3b0232)

diff --git a/.github/workflows/release-binaries.yml b/.github/workflows/release-binaries.yml
index 131ad3004f457743403fbc07a64193cf53262c6a..02082a84d8c10779f1b8209db580d9ac496551b0 100644 (file)
--- a/.github/workflows/release-binaries.yml
+++ b/.github/workflows/release-binaries.yml
@@ -38,9 +38,6 @@ jobs:
     if: github.repository == 'llvm/llvm-project'
     outputs:
       release-version: ${{ steps.vars.outputs.release-version }}
-      flags: ${{ steps.vars.outputs.flags }}
-      build-dir: ${{ steps.vars.outputs.build-dir }}
-      rc-flags: ${{ steps.vars.outputs.rc-flags }}
       ref: ${{ steps.vars.outputs.ref }}
       upload: ${{ steps.vars.outputs.upload }}
 
@@ -85,17 +82,11 @@ jobs:
         fi
         bash .github/workflows/set-release-binary-outputs.sh "$tag" "$upload"
 
-  # Try to get around the 6 hour timeout by first running a job to fill
-  # the build cache.
-  fill-cache:
-    name: "Fill Cache ${{ matrix.os }}"
+  build-stage1-linux:
+    name: "Build Stage 1 Linux"
     needs: prepare
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-22.04
     if: github.repository == 'llvm/llvm-project'
-    strategy:
-      matrix:
-        os:
-          - ubuntu-22.04
     steps:
     - name: Checkout LLVM
       uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
@@ -109,81 +100,207 @@ jobs:
       uses: hendrikmuhs/ccache-action@ca3acd2731eef11f1572ccb126356c2f9298d35e # v1.2.9
       with:
         max-size: 250M
-        key: sccache-${{ matrix.os }}-release
+        key: sccache-${{ runner.os }}-release
         variant: sccache
 
-    - name: Build Clang
+    - name: Build Stage 1 Clang
       run: |
-        cmake -G Ninja -C clang/cmake/caches/Release.cmake -DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache -DCMAKE_POSITION_INDEPENDENT_CODE=ON -S llvm -B build
-        ninja -v -C build clang
+        sudo chown $USER:$USER /mnt/
+        cmake -G Ninja -C clang/cmake/caches/Release.cmake -DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache -S llvm -B /mnt/build
+        ninja -v -C /mnt/build
 
+    # We need to create an archive of the build directory, because it has too
+    # many files to upload.
+    - name: Package Build and Source Directories
+      run: |
+        tar -c . | zstd -T0 -c > llvm-project.tar.zst
+        tar -C /mnt/ -c build/ | zstd -T0 -c > build.tar.zst
 
-  build-binaries:
-    name: ${{ matrix.target.triple }}
-    permissions:
-      contents: write # To upload assets to release.
+    - name: Upload Stage 1 Source
+      uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
+      with:
+        name: stage1-source
+        path: llvm-project.tar.zst
+        retention-days: 2
+
+    - name: Upload Stage 1 Build Dir
+      uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
+      with:
+        name: stage1-build
+        path: build.tar.zst
+        retention-days: 2
+
+  build-stage2-linux:
+    name: "Build Stage 2 Linux"
     needs:
       - prepare
-      - fill-cache
-    runs-on: ${{ matrix.target.runs-on }}
+      - build-stage1-linux
+    runs-on: ubuntu-22.04
     if: github.repository == 'llvm/llvm-project'
-    strategy:
-      fail-fast: false
-      matrix:
-        target:
-          - triple: x86_64-linux-gnu-ubuntu-22.04
-            os: ubuntu-22.04
-            runs-on: ubuntu-22.04-16x64
-            debian-build-deps: >
-              chrpath
-              gcc-multilib
-              ninja-build
-
     steps:
-    - name: Checkout LLVM
-      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+    - name: Install Ninja
+      uses: llvm/actions/install-ninja@22e9f909d35b50bd1181709564bfe816eaeaae81 # main
+
+    - name: Download Stage 1 Artifacts
+      uses: actions/download-artifact@6b208ae046db98c579e8a3aa621ab581ff575935 # v4.1.1
       with:
-        ref: ${{ needs.prepare.outputs.ref }}
-        path: ${{ needs.prepare.outputs.build-dir }}/llvm-project
+        pattern: stage1-*
+        merge-multiple: true
 
-    - name: Setup sccache
-      uses: hendrikmuhs/ccache-action@ca3acd2731eef11f1572ccb126356c2f9298d35e # v1.2.9
+    - name: Unpack Artifacts
+      run: |
+        tar --zstd -xf llvm-project.tar.zst
+        rm llvm-project.tar.zst
+        sudo chown $USER:$USER /mnt/
+        tar --zstd -C /mnt -xf build.tar.zst
+        rm build.tar.zst
+
+    - name: Build Stage 2
+      run: |
+        ninja -C /mnt/build stage2-instrumented
+
+    # We need to create an archive of the build directory, because it has too
+    # many files to upload.
+    - name: Save Build and Source Directories
+      run: |
+        tar -c . | zstd -T0 -c > llvm-project.tar.zst
+        tar -C /mnt/ -c build/ | zstd -T0 -c > build.tar.zst
+
+    - name: Upload Stage 2 Source
+      uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
       with:
-        max-size: 250M
-        key: sccache-${{ matrix.target.os }}-release
-        save: false
-        variant: sccache
+        name: stage2-source
+        path: ${{ github.workspace }}/llvm-project.tar.zst
+        retention-days: 2
+
+    - name: Upload Stage 2 Build Dir
+      uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
+      with:
+        name: stage2-build
+        path: ${{ github.workspace }}/build.tar.zst
+        retention-days: 2
 
-    - name: Install Brew build dependencies
-      if: matrix.target.brew-build-deps != ''
-      run: brew install ${{ matrix.target.brew-build-deps }}
 
-    - name: Install Debian build dependencies
-      if: matrix.target.debian-build-deps != ''
-      run: sudo apt install ${{ matrix.target.debian-build-deps }}
+  build-stage3-linux:
+    name: "Build Stage 3 Linux"
+    needs:
+      - prepare
+      - build-stage2-linux
+    outputs:
+      filename: ${{ steps.package-info.outputs.release-filename }}
+    runs-on: ubuntu-22.04-16x64
+    if: github.repository == 'llvm/llvm-project'
+    steps:
+    - name: Install Ninja
+      uses: llvm/actions/install-ninja@22e9f909d35b50bd1181709564bfe816eaeaae81 # main
+
+    - name: 'Download artifact'
+      uses: actions/download-artifact@6b208ae046db98c579e8a3aa621ab581ff575935 # v4.1.1
+      with:
+        pattern: stage2-*
+        merge-multiple: true
 
-    - name: Set macOS build env variables
-      if: runner.os == 'macOS'
+    - name: Unpack Artifact
       run: |
-        echo "MACOSX_DEPLOYMENT_TARGET=10.9" >> "$GITHUB_ENV"
+        tar --zstd -xf llvm-project.tar.zst
+        rm llvm-project.tar.zst
+        sudo chown $USER:$USER /mnt/
+        tar --zstd -C /mnt -xf build.tar.zst
+        rm build.tar.zst
 
-    - name: Build and test release
+    - name: Build Release Package
       run: |
-        ${{ needs.prepare.outputs.build-dir }}/llvm-project/llvm/utils/release/test-release.sh \
-        ${{ needs.prepare.outputs.flags }} \
-        -triple ${{ matrix.target.triple }} \
-        -use-ninja \
-        -no-checkout \
-        -use-cmake-cache \
-        -no-test-suite \
-        -configure-flags "-DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache"
+        ninja -C /mnt/build stage2-package
 
-    - name: Upload binaries
-      if: ${{ always() && needs.prepare.outputs.upload == 'true' }}
+    - id: package-info
+      run: |
+        filename="LLVM-${{ needs.prepare.outputs.release-version }}-Linux.tar.gz"
+        echo "filename=$filename" >> $GITHUB_OUTPUT
+        echo "path=/mnt/build/tools/clang/stage2-bins/$filename" >> $GITHUB_OUTPUT
+
+    - uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
+      if: always()
+      with:
+        name: release-binary
+        path: ${{ steps.package-info.outputs.path }}
+
+    # Clean up some build files to reduce size of artifact.
+    - name: Clean Up Build Directory
+      run: |
+        find /mnt/build -iname ${{ steps.package-info.outputs.filename }} -delete
+
+    # We need to create an archive of the build directory, because it has too
+    # many files to upload.
+    - name: Save Build and Source Directories
+      run: |
+        tar -c . | zstd -T0 -c > llvm-project.tar.zst
+        tar -C /mnt/ -c build/ | zstd -T0 -c > build.tar.zst
+
+    - name: Upload Stage 3 Source
+      uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
+      with:
+        name: stage3-source
+        path: llvm-project.tar.zst
+        retention-days: 2
+
+    - name: Upload Stage 3 Build Dir
+      uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
+      with:
+        name: stage3-build
+        path: build.tar.zst
+        retention-days: 2
+
+  upload-release-binaries-linux:
+    name: "Upload Linux Release Binaries"
+    needs:
+      - prepare
+      - build-stage3-linux
+    if : ${{ needs.prepare.outputs.upload == 'true' }}
+    runs-on: ubuntu-22.04
+    permissions:
+      contents: write # For release uploads
+
+    steps:
+    - name: 'Download artifact'
+      uses: actions/download-artifact@6b208ae046db98c579e8a3aa621ab581ff575935 # v4.1.1
+      with:
+        name: release-binary
+
+    - name: Upload Release
       run: |
         sudo apt install python3-github
-        ${{ needs.prepare.outputs.build-dir }}/llvm-project/llvm/utils/release/github-upload-release.py \
+        ./llvm-project/llvm/utils/release/github-upload-release.py \
         --token ${{ github.token }} \
         --release ${{ needs.prepare.outputs.release-version }} \
         upload \
-        --files ${{ needs.prepare.outputs.build-dir }}/clang+llvm-${{ needs.prepare.outputs.release-version }}-${{ matrix.target.triple }}.tar.xz
+        --files ${{ needs.build-stage3-linux.outputs.release-filename }}
+
+
+  test-stage3-linux:
+    name: "Test Stage 3 Linux"
+    needs:
+      - prepare
+      - build-stage3-linux
+    runs-on: ubuntu-22.04
+    if: github.repository == 'llvm/llvm-project'
+    steps:
+    - name: Install Ninja
+      uses: llvm/actions/install-ninja@22e9f909d35b50bd1181709564bfe816eaeaae81 # main
+
+    - name: 'Download artifact'
+      uses: actions/download-artifact@6b208ae046db98c579e8a3aa621ab581ff575935 # v4.1.1
+      with:
+        pattern: stage3-*
+        merge-multiple: true
+
+    - name: Unpack Artifact
+      run: |
+        tar --zstd -xf llvm-project.tar.zst
+        rm llvm-project.tar.zst
+        sudo chown $USER:$USER /mnt/
+        tar --zstd -C /mnt -xf build.tar.zst
+        rm build.tar.zst
+
+    - name: Run Tests
+      run: |
+        ninja -C /mnt/build stage2-check-all

diff --git a/.github/workflows/set-release-binary-outputs.sh b/.github/workflows/set-release-binary-outputs.sh
index 59470cf83ba75525f543230a94f2340ca11f32e0..14d0798364e914124cdaf46813e9a4c5dae652ec 100644 (file)
--- a/.github/workflows/set-release-binary-outputs.sh
+++ b/.github/workflows/set-release-binary-outputs.sh
@@ -15,10 +15,8 @@ if echo $tag | grep -e '^[0-9a-f]\+$'; then
   # This is a plain commit.
   # TODO: Don't hardcode this.
   release_version="18"
-  build_dir="$tag"
   upload='false'
   ref="$tag"
-  flags="-git-ref $tag -test-asserts"
 
 else
 
@@ -30,12 +28,7 @@ else
   fi
   release_version=`echo "$tag" | sed 's/llvmorg-//g'`
   release=`echo "$release_version" | sed 's/-.*//g'`
-  build_dir=`echo "$release_version" | sed 's,^[^-]\+,final,' | sed 's,[^-]\+-rc\(.\+\),rc\1,'`
-  rc_flags=`echo "$release_version" | sed 's,^[^-]\+,-final,' | sed 's,[^-]\+-rc\(.\+\),-rc \1 -test-asserts,' | sed 's,--,-,'`
-  flags="-release $release $rc_flags"
 fi
 echo "release-version=$release_version" >> $GITHUB_OUTPUT
-echo "build-dir=$build_dir" >> $GITHUB_OUTPUT
-echo "flags=$flags" >> $GITHUB_OUTPUT
 echo "upload=$upload" >> $GITHUB_OUTPUT
 echo "ref=$tag" >> $GITHUB_OUTPUT