Sync Fork with Upstream #146
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| name: Sync Fork with Upstream | |
| on: | |
| schedule: | |
| - cron: '0 3 * * *' # Daily at 3:00 AM UTC | |
| workflow_dispatch: | |
| issue_comment: | |
| types: [created] | |
| jobs: | |
| sync-scheduled: | |
| name: Sync Fork (Scheduled) | |
| if: github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' | |
| runs-on: ubuntu-latest | |
| permissions: | |
| contents: write | |
| steps: | |
| - name: Checkout fork master | |
| uses: actions/checkout@v4 | |
| with: | |
| ref: master | |
| fetch-depth: 0 | |
| token: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Configure Git | |
| run: | | |
| git config user.name "github-actions[bot]" | |
| git config user.email "github-actions[bot]@users.noreply.github.com" | |
| - name: Add upstream remote | |
| run: | | |
| git remote add upstream https://github.com/eclipse-jdt/eclipse.jdt.ui.git | |
| git fetch upstream master | |
| - name: Check if sync needed | |
| id: check_sync | |
| run: | | |
| UPSTREAM_SHA=$(git rev-parse upstream/master) | |
| LAST_COMMIT_MSG=$(git log -1 --pretty=%s) | |
| if [ "$LAST_COMMIT_MSG" = "Fork-specific CI and workflow configurations" ]; then | |
| CURRENT_PARENT=$(git rev-parse HEAD~1 2>/dev/null || echo "none") | |
| if [ "$UPSTREAM_SHA" = "$CURRENT_PARENT" ]; then | |
| echo "Upstream has not changed since last sync. Skipping." | |
| echo "needs_sync=false" >> $GITHUB_OUTPUT | |
| exit 0 | |
| fi | |
| fi | |
| echo "Upstream has new commits. Syncing..." | |
| echo "needs_sync=true" >> $GITHUB_OUTPUT | |
| - name: Identify and backup fork-specific files | |
| id: backup | |
| if: steps.check_sync.outputs.needs_sync == 'true' | |
| run: | | |
| # Create temporary directory for fork-specific files | |
| mkdir -p /tmp/fork-specific | |
| # Read the list of fork-specific files from the manifest | |
| MANIFEST=".github/fork-specific-files.txt" | |
| if [ ! -f "$MANIFEST" ]; then | |
| echo "Warning: $MANIFEST not found, no files to backup" | |
| echo "has_fork_files=false" >> $GITHUB_OUTPUT | |
| exit 0 | |
| fi | |
| HAS_FILES=false | |
| while IFS= read -r file || [ -n "$file" ]; do | |
| # Skip empty lines and comments | |
| [ -z "$file" ] && continue | |
| case "$file" in \#*) continue ;; esac | |
| if [ -f "$file" ]; then | |
| echo "Backing up fork-specific file: $file" | |
| mkdir -p "/tmp/fork-specific/$(dirname "$file")" | |
| cp "$file" "/tmp/fork-specific/$file" | |
| HAS_FILES=true | |
| fi | |
| done < "$MANIFEST" | |
| if [ "$HAS_FILES" = "true" ]; then | |
| echo "has_fork_files=true" >> $GITHUB_OUTPUT | |
| echo "Found fork-specific files:" | |
| find /tmp/fork-specific -type f | |
| else | |
| echo "has_fork_files=false" >> $GITHUB_OUTPUT | |
| echo "No fork-specific files found" | |
| fi | |
| - name: Reset to upstream master | |
| if: steps.check_sync.outputs.needs_sync == 'true' | |
| run: | | |
| # Reset fork master to upstream master | |
| git reset --hard upstream/master | |
| - name: Restore fork-specific files | |
| if: steps.check_sync.outputs.needs_sync == 'true' && steps.backup.outputs.has_fork_files == 'true' | |
| run: | | |
| # Restore all backed-up fork-specific files | |
| if [ -d "/tmp/fork-specific" ]; then | |
| cp -r /tmp/fork-specific/. ./ | |
| fi | |
| # Stage all restored files | |
| git add -A | |
| - name: Commit fork-specific changes | |
| if: steps.check_sync.outputs.needs_sync == 'true' && steps.backup.outputs.has_fork_files == 'true' | |
| run: | | |
| # Check if there are changes to commit | |
| if ! git diff --cached --quiet; then | |
| git commit -m "Fork-specific CI and workflow configurations" | |
| echo "✅ Fork-specific changes committed" | |
| else | |
| echo "ℹ️ No fork-specific changes to commit" | |
| fi | |
| - name: Push to fork master | |
| if: steps.check_sync.outputs.needs_sync == 'true' | |
| run: | | |
| git push --force origin master | |
| echo "✅ Successfully synced with upstream" | |
| sync-manual: | |
| name: Sync Fork (Manual) | |
| if: | | |
| github.event_name == 'issue_comment' && | |
| contains(github.event.comment.body, '/sync-upstream') | |
| runs-on: ubuntu-latest | |
| permissions: | |
| contents: write | |
| issues: write | |
| steps: | |
| - name: Check user permission | |
| id: check | |
| uses: actions/github-script@v8 | |
| with: | |
| result-encoding: string | |
| script: | | |
| const authorAssociation = context.payload.comment.author_association; | |
| const allowedRoles = ['OWNER', 'MEMBER', 'COLLABORATOR']; | |
| if (allowedRoles.includes(authorAssociation)) { | |
| return 'true'; | |
| } else { | |
| return 'false'; | |
| } | |
| - name: Add unauthorized reaction | |
| if: steps.check.outputs.result != 'true' | |
| uses: actions/github-script@v8 | |
| with: | |
| script: | | |
| github.rest.reactions.createForIssueComment({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| comment_id: context.payload.comment.id, | |
| content: '-1' | |
| }); | |
| github.rest.issues.createComment({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| issue_number: context.issue.number, | |
| body: '❌ Only repository collaborators can trigger the sync.' | |
| }); | |
| - name: Exit if unauthorized | |
| if: steps.check.outputs.result != 'true' | |
| run: exit 1 | |
| - name: Add rocket reaction | |
| uses: actions/github-script@v8 | |
| with: | |
| script: | | |
| github.rest.reactions.createForIssueComment({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| comment_id: context.payload.comment.id, | |
| content: 'rocket' | |
| }); | |
| - name: Checkout fork master | |
| uses: actions/checkout@v4 | |
| with: | |
| ref: master | |
| fetch-depth: 0 | |
| token: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Configure Git | |
| run: | | |
| git config user.name "github-actions[bot]" | |
| git config user.email "github-actions[bot]@users.noreply.github.com" | |
| - name: Add upstream remote | |
| run: | | |
| git remote add upstream https://github.com/eclipse-jdt/eclipse.jdt.ui.git | |
| git fetch upstream master | |
| - name: Check if sync needed | |
| id: check_sync | |
| run: | | |
| UPSTREAM_SHA=$(git rev-parse upstream/master) | |
| LAST_COMMIT_MSG=$(git log -1 --pretty=%s) | |
| if [ "$LAST_COMMIT_MSG" = "Fork-specific CI and workflow configurations" ]; then | |
| CURRENT_PARENT=$(git rev-parse HEAD~1 2>/dev/null || echo "none") | |
| if [ "$UPSTREAM_SHA" = "$CURRENT_PARENT" ]; then | |
| echo "Upstream has not changed since last sync. Skipping." | |
| echo "needs_sync=false" >> $GITHUB_OUTPUT | |
| exit 0 | |
| fi | |
| fi | |
| echo "Upstream has new commits. Syncing..." | |
| echo "needs_sync=true" >> $GITHUB_OUTPUT | |
| - name: Identify and backup fork-specific files | |
| id: backup | |
| if: steps.check_sync.outputs.needs_sync == 'true' | |
| run: | | |
| # Create temporary directory for fork-specific files | |
| mkdir -p /tmp/fork-specific | |
| # Read the list of fork-specific files from the manifest | |
| MANIFEST=".github/fork-specific-files.txt" | |
| if [ ! -f "$MANIFEST" ]; then | |
| echo "Warning: $MANIFEST not found, no files to backup" | |
| echo "has_fork_files=false" >> $GITHUB_OUTPUT | |
| exit 0 | |
| fi | |
| HAS_FILES=false | |
| while IFS= read -r file || [ -n "$file" ]; do | |
| # Skip empty lines and comments | |
| [ -z "$file" ] && continue | |
| case "$file" in \#*) continue ;; esac | |
| if [ -f "$file" ]; then | |
| echo "Backing up fork-specific file: $file" | |
| mkdir -p "/tmp/fork-specific/$(dirname "$file")" | |
| cp "$file" "/tmp/fork-specific/$file" | |
| HAS_FILES=true | |
| fi | |
| done < "$MANIFEST" | |
| if [ "$HAS_FILES" = "true" ]; then | |
| echo "has_fork_files=true" >> $GITHUB_OUTPUT | |
| echo "Found fork-specific files:" | |
| find /tmp/fork-specific -type f | |
| else | |
| echo "has_fork_files=false" >> $GITHUB_OUTPUT | |
| echo "No fork-specific files found" | |
| fi | |
| - name: Reset to upstream master | |
| id: reset | |
| if: steps.check_sync.outputs.needs_sync == 'true' | |
| run: | | |
| # Reset fork master to upstream master | |
| git reset --hard upstream/master | |
| echo "success=true" >> $GITHUB_OUTPUT | |
| - name: Restore fork-specific files | |
| if: steps.check_sync.outputs.needs_sync == 'true' && steps.backup.outputs.has_fork_files == 'true' | |
| run: | | |
| # Restore all backed-up fork-specific files | |
| if [ -d "/tmp/fork-specific" ]; then | |
| cp -r /tmp/fork-specific/. ./ | |
| fi | |
| # Stage all restored files | |
| git add -A | |
| - name: Commit fork-specific changes | |
| if: steps.check_sync.outputs.needs_sync == 'true' && steps.backup.outputs.has_fork_files == 'true' | |
| run: | | |
| # Check if there are changes to commit | |
| if ! git diff --cached --quiet; then | |
| git commit -m "Fork-specific CI and workflow configurations" | |
| echo "✅ Fork-specific changes committed" | |
| else | |
| echo "ℹ️ No fork-specific changes to commit" | |
| fi | |
| - name: Push to fork master | |
| id: push | |
| if: steps.check_sync.outputs.needs_sync == 'true' | |
| run: | | |
| if git push --force origin master; then | |
| echo "success=true" >> $GITHUB_OUTPUT | |
| else | |
| echo "success=false" >> $GITHUB_OUTPUT | |
| fi | |
| - name: Add already-up-to-date comment | |
| if: steps.check_sync.outputs.needs_sync == 'false' | |
| uses: actions/github-script@v8 | |
| with: | |
| script: | | |
| github.rest.issues.createComment({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| issue_number: context.issue.number, | |
| body: 'ℹ️ Fork master is already up to date with `eclipse-jdt/eclipse.jdt.ui:master`. No sync needed.' | |
| }); | |
| - name: Add success comment | |
| if: steps.push.outputs.success == 'true' | |
| uses: actions/github-script@v8 | |
| with: | |
| script: | | |
| github.rest.reactions.createForIssueComment({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| comment_id: context.payload.comment.id, | |
| content: '+1' | |
| }); | |
| github.rest.issues.createComment({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| issue_number: context.issue.number, | |
| body: '✅ Successfully synced fork master with `eclipse-jdt/eclipse.jdt.ui:master`' | |
| }); | |
| - name: Add failure comment | |
| if: steps.push.outputs.success == 'false' | |
| uses: actions/github-script@v8 | |
| with: | |
| script: | | |
| github.rest.reactions.createForIssueComment({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| comment_id: context.payload.comment.id, | |
| content: '-1' | |
| }); | |
| const comment = `❌ Sync failed. Please check the workflow logs for details. | |
| [View workflow run](${context.payload.repository.html_url}/actions/runs/${context.runId})`; | |
| github.rest.issues.createComment({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| issue_number: context.issue.number, | |
| body: comment | |
| }); | |
| - name: Fail workflow if push failed | |
| if: steps.push.outputs.success == 'false' | |
| run: exit 1 |