name: Auto-fix Image Files on: issue_comment: types: [created] permissions: contents: write pull-requests: write issues: write jobs: auto-fix: name: Auto-fix Images (EXIF & Size) if: > github.event.issue.pull_request && startsWith(github.event.comment.body, '/auto-fix') && (github.event.comment.author_association == 'OWNER' || github.event.comment.author_association == 'MEMBER' || github.event.comment.author_association == 'COLLABORATOR' || github.event.comment.user.login == github.event.issue.user.login) runs-on: ubuntu-latest steps: - name: Acknowledge command and start processing id: init uses: actions/github-script@v7 with: script: | await github.rest.reactions.createForIssueComment({ owner: context.repo.owner, repo: context.repo.repo, comment_id: context.payload.comment.id, content: "rocket" }); const response = await github.rest.issues.createComment({ owner: context.repo.owner, repo: context.repo.repo, issue_number: context.issue.number, body: "🚀 自动修复工作中...(Auto-fix initiated! Processing images...)" }); core.setOutput("comment_id", response.data.id); - name: Checkout Repository uses: actions/checkout@v4 with: fetch-depth: 0 - name: Setup Git identity and auth env: GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} run: | git config --global user.name "github-actions[bot]" git config --global user.email "github-actions[bot]@users.noreply.github.com" gh auth setup-git - name: Checkout PR branch env: GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} run: | gh pr checkout ${{ github.event.issue.number }} - name: Install dependencies run: | sudo apt-get update sudo apt-get install -y --no-install-recommends libimage-exiftool-perl imagemagick jpegoptim optipng pngquant - name: Get list of changed image files env: GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} run: | gh pr diff ${{ github.event.issue.number }} --name-only | grep -iE '\.(jpe?g|png|webp|tiff?|hei[cf]|avif|gif)$' > changed_images.txt || true if [ ! -s changed_images.txt ]; then echo "No images changed in this PR." exit 0 fi echo "Changed images to process:" cat changed_images.txt - name: Process Phase 1 - Remove EXIF Data run: | if [ ! -s changed_images.txt ]; then exit 0; fi exif_files_changed=0 while IFS= read -r file; do if [ -f "$file" ]; then count=$(exiftool -EXIF:all -S -q -- "$file" 2>/dev/null | wc -l || echo 0) if [ "$count" -gt 0 ]; then echo "Removing EXIF: $file" exiftool -all= -overwrite_original "$file" exif_files_changed=1 fi fi done < changed_images.txt if [ "$exif_files_changed" -eq 1 ]; then git add . git commit -m "chore: auto-remove EXIF data from images" || true fi - name: Process Phase 2 - Compress Oversized Images id: compress continue-on-error: true run: | if [ ! -s changed_images.txt ]; then exit 0; fi size_files_changed=0 failed_files=() MAX_SIZE=$((1024 * 1024)) # 1MB Limit while IFS= read -r file; do if [ -f "$file" ]; then size=$(stat -c%s "$file" 2>/dev/null || stat -f%z "$file" 2>/dev/null || echo 0) if [ "$size" -gt "$MAX_SIZE" ]; then echo "Compressing: $file ($size bytes)" ext="${file##*.}" ext_lower=$(echo "$ext" | tr '[:upper:]' '[:lower:]') case "$ext_lower" in jpg|jpeg) jpegoptim --size=990k "$file" || mogrify -quality 75 "$file" ;; png) # Use pngquant for highly effective lossy PNG compression first pngquant --quality=60-80 --ext .png --force "$file" || optipng -o2 "$file" ;; *) mogrify -quality 75 "$file" ;; esac # Check if file size is successfully reduced under 1MB new_size=$(stat -c%s "$file" 2>/dev/null || echo 0) if [ "$new_size" -gt "$MAX_SIZE" ]; then echo "Failed to compress $file below 1MB (Current: $new_size bytes)" failed_files+=("$file") else size_files_changed=1 fi fi fi done < changed_images.txt if [ ${#failed_files[@]} -gt 0 ]; then echo "Some files failed to compress below 1MB." { echo "failed=true" echo "failed_list<> $GITHUB_OUTPUT # Revert changes to prevent pushing conflicted or partial states git reset --hard exit 1 fi if [ "$size_files_changed" -eq 1 ]; then git add . git commit -m "chore: auto-compress oversized images" || true fi - name: Push Changes id: push if: steps.compress.outcome != 'failure' env: GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} run: | if ! git diff --quiet @{u}...HEAD; then echo "Pushing changes back to the PR branch..." git push else echo "No changes made during processing." fi - name: Report Completion if: always() uses: actions/github-script@v7 with: script: | const compressOutcome = "${{ steps.compress.outcome }}"; const failedList = `${{ steps.compress.outputs.failed_list }}`; const commentId = `${{ steps.init.outputs.comment_id }}`; let message = ""; if (compressOutcome === 'failure' && failedList.trim().length > 0) { // Compression failed because some files couldn't be brought under 1MB message = `❌ **自动修复未完全成功 (Auto-fix failed to compress some files).** 自动修复算法无法在保持分辨率的前提下，将以下文件压缩至 1MB 以内： (The automated algorithm could not compress the following files strictly under 1MB without reducing their resolution:) ${failedList} **如何手动修复 (How to fix manually):** 为了满足通过条件，请您在本地手动将这些图片尺寸缩小（缩小分辨率/长宽），或者转换为更高压缩率的格式后再次提交。 (Please manually scale down the images' resolution or convert them to a more efficient format and commit again.) *请放心，为了防止冲突，本次自动化修改已被拦截，没有发起代码推送。* *(The auto-fix push was aborted to prevent conflicts.)*`; } else if (compressOutcome === 'failure') { // Unexpected failure in the compress step message = "❌ **自动修复失败 (Auto-fix failed).**\n请查看 [Actions Log](" + context.serverUrl + "/" + context.repo.owner + "/" + context.repo.repo + "/actions/runs/" + context.runId + ") 获取详情。(Please check the Actions Log for details.)"; } else { // success or skipped — everything went fine message = "✅ **自动修复成功 (Auto-fix completed successfully)!**\nEXIF 信息已被移除且文件已被压缩（如需要）。(EXIF data removed and files compressed if needed. Check the latest commits.)"; } if (commentId && commentId !== "undefined" && commentId !== "") { await github.rest.issues.updateComment({ owner: context.repo.owner, repo: context.repo.repo, comment_id: parseInt(commentId, 10), body: message }); } else { await github.rest.issues.createComment({ owner: context.repo.owner, repo: context.repo.repo, issue_number: context.issue.number, body: message }); }