Merge pull request ampproject#7649 from ampproject/enhancement/workflows

Update `Build, test & measure` workflow

.github/actions/determine-changed-files/action.yml

@@ -0,0 +1,84 @@
+name: Determine count of changed files
+
+description: Determine count of changed files based on the current branch and the base branch
+
+outputs:
+ count:
+ description: The count of changed files
+ value: ${{ steps.determine-file-counts.outputs.count }}
+ php-count:
+ description: The count of changed PHP files
+ value: ${{ steps.determine-file-counts.outputs.php-count }}
+ css-count:
+ description: The count of changed CSS files
+ value: ${{ steps.determine-file-counts.outputs.css-count }}
+ js-count:
+ description: The count of changed JS files
+ value: ${{ steps.determine-file-counts.outputs.js-count }}
+ gha-workflow-count:
+ description: The count of changed GHA workflow files
+ value: ${{ steps.determine-file-counts.outputs.gha-workflow-count }}
+
+runs:
+ using: 'composite'
+ steps:
+ - name: Fetch base branch
+ # Only fetch base ref if it's a PR.
+ if: ${{ github.base_ref != null }}
+ shell: bash
+ run: git fetch --depth=1 --no-tags origin ${{ github.base_ref }}
+
+ - name: Determine modified files for PR
+ if: ${{ github.base_ref != null }}
+ shell: bash
+ run: echo "MODIFIED_FILES=$(git diff --name-only FETCH_HEAD HEAD | base64 -w 0)" >> $GITHUB_ENV
+
+ - name: Determine modified files for commit
+ if: ${{ github.base_ref == null }}
+ shell: bash
+ run: echo "MODIFIED_FILES=$(git diff --name-only HEAD~1 HEAD | base64 -w 0)" >> $GITHUB_ENV
+
+ - name: Determine if modified files should make the workflow run continue
+ id: determine-file-counts
+ shell: bash
+ run: |
+ # Get modified files.
+ MODIFIED_FILES=$(echo "$MODIFIED_FILES" | base64 -d)
+
+ # Determine file counts.
+ FILE_COUNT=$(php -f ./.github/actions/determine-changed-files/determine-modified-files-count.php "$IGNORE_PATH_REGEX" "$MODIFIED_FILES" --invert)
+ PHP_FILE_COUNT=$(php -f ./.github/actions/determine-changed-files/determine-modified-files-count.php ".+\.php|composer\.(json|lock)|phpstan\.neon\.dist" "$MODIFIED_FILES")
+ CSS_FILE_COUNT=$(php -f ./.github/actions/determine-changed-files/determine-modified-files-count.php ".+\.s?css|package\.json|package-lock\.json" "$MODIFIED_FILES")
+ JS_FILE_COUNT=$(php -f ./.github/actions/determine-changed-files/determine-modified-files-count.php ".+\.(js|snap)|package\.json|package-lock\.json" "$MODIFIED_FILES")
+ GHA_WORKFLOW_COUNT=$(php -f ./.github/actions/determine-changed-files/determine-modified-files-count.php "(\.github\/workflows\/.+\.yml)" "$MODIFIED_FILES")
+
+ # Set output variables.
+ echo "count=$FILE_COUNT" >> $GITHUB_OUTPUT
+ echo "php-count=$PHP_FILE_COUNT" >> $GITHUB_OUTPUT
+ echo "css-count=$CSS_FILE_COUNT" >> $GITHUB_OUTPUT
+ echo "js-count=$JS_FILE_COUNT" >> $GITHUB_OUTPUT
+ echo "gha-workflow-count=$GHA_WORKFLOW_COUNT" >> $GITHUB_OUTPUT
+
+ # Add modified files summary.
+ echo "# Modified files summary" >> $GITHUB_STEP_SUMMARY
+ echo "## Modified files" >> $GITHUB_STEP_SUMMARY
+ echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
+ echo "$MODIFIED_FILES" >> $GITHUB_STEP_SUMMARY
+ echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
+ echo "## Modified files count" >> $GITHUB_STEP_SUMMARY
+ echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
+ echo "Total modified files: $FILE_COUNT" >> $GITHUB_STEP_SUMMARY
+ echo "PHP files: $PHP_FILE_COUNT" >> $GITHUB_STEP_SUMMARY
+ echo "CSS files: $CSS_FILE_COUNT" >> $GITHUB_STEP_SUMMARY
+ echo "JS files: $JS_FILE_COUNT" >> $GITHUB_STEP_SUMMARY
+ echo "GHA workflow files: $GHA_WORKFLOW_COUNT" >> $GITHUB_STEP_SUMMARY
+ echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
+ env:
+ # Ignore Paths:
+ # - .github/
+ # - !.github/actions
+ # - !.github/workflows
+ # - .github/actions/draft-release/
+ # - .wordpress-org/
+ # - docs/
+ IGNORE_PATH_REGEX: \.github\/(?!actions|workflows)|\.wordpress-org\/|docs\/|\.github\/actions\/draft-release\/