ci: add github action to build for aarch64

.github/workflows/bazel_build_aarch64.yml

@@ -0,0 +1,72 @@
+# yamllint disable rule:line-length
+---
+name: Bazel
+on:  # yamllint disable-line rule:truthy
+  pull_request:
+    branches: ['*']
+
+jobs:
+  build_aarch64:
+    runs-on: ubuntu-latest
+    container:
+      image: dtors/base-cpp:latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Configure Git Safe Directory
+        run: |
+          git config --global --add safe.directory $(pwd)
+
+      - name: Find affected files
+        id: affected_files
+        run: |
+          git fetch origin ${{ github.base_ref }} --depth=1
+          git diff --diff-filter=ACM --name-only origin/${{ github.base_ref }} > affected_files.txt
+          echo "Affected files:"
+          cat affected_files.txt
+
+      - name: Find affected Bazel targets
+        id: bazel_targets
+        run: |
+          > affected_targets.txt
+
+          while read file; do
+            if [[ "$file" == *.c || "$file" == *.cc || "$file" == *.cpp || "$file" == *.cxx || "$file" == *.h || "$file" == *.hpp || "$file" == *.hxx ]]; then
+              echo "Finding targets for: $file"
+              targets=$(bazelisk query --output=package "$file")/...
+              echo "$targets" >> affected_targets.txt
+            fi
+          done < affected_files.txt
+
+          sort -u affected_targets.txt -o affected_targets.txt
+          echo "Affected targets:"
+          cat affected_targets.txt
+
+          echo "targets=$(cat affected_targets.txt | tr -s '\n' ' ' | sed 's/^[ \t]*//;s/[ \t]*$//')" >> $GITHUB_ENV
+        shell: bash
+
+      - name: Setup bazel cache
+        if: env.targets != ''
+        uses: actions/cache@v4
+        env:
+          cache-name: bazel-cache
+        with:
+          path: |
+            ~/.cache/bazelisk
+            ~/.cache/bazel
+          key: ${{ runner.os }}-${{ env.cache-name }}-${{ github.ref }}
+          restore-keys: |
+            ${{ runner.os }}-${{ env.cache-name }}-development
+
+      - name: Build affected targets
+        if: env.targets != ''
+        run: |
+          echo "Building targets for aarch64: $targets"
+          bazelisk build $targets --platforms=//bazel/platforms:aarch64_linux
+        shell: bash
+
+      - name: No targets to build
+        if: env.targets == ''
+        run: echo "No affected Bazel targets found. Skipping build."

.github/workflows/bazel_build.yml → .github/workflows/bazel_build_x86.yml

@@ -6,7 +6,7 @@ on:  # yamllint disable-line rule:truthy
     branches: ['*']
 
 jobs:
-  build:
+  build_x86:
     runs-on: ubuntu-latest
     container:
       image: dtors/base-cpp:latest
@@ -63,8 +63,8 @@ jobs:
       - name: Build affected targets
         if: env.targets != ''
         run: |
-          echo "Building targets: $targets"
-          bazelisk build $targets
+          echo "Building targets for x86: $targets"
+          bazelisk build $targets --platforms=//bazel/platforms:x86_64_linux
         shell: bash
 
       - name: No targets to build