|
| 1 | +name: Generate changeset from PR |
| 2 | + |
| 3 | +on: |
| 4 | + pull_request_target: |
| 5 | + types: [opened, edited, synchronize] |
| 6 | + |
| 7 | +concurrency: |
| 8 | + group: ${{ github.workflow }}-${{ github.event.pull_request.number }} |
| 9 | + cancel-in-progress: true |
| 10 | + |
| 11 | +permissions: |
| 12 | + contents: write |
| 13 | + pull-requests: read |
| 14 | + |
| 15 | +jobs: |
| 16 | + generate-changeset: |
| 17 | + name: Generate changeset |
| 18 | + runs-on: ubuntu-latest |
| 19 | + if: >- |
| 20 | + github.event.pull_request.user.login != 'renovate[bot]' && |
| 21 | + github.event.pull_request.user.login != 'dependabot[bot]' && |
| 22 | + github.event.pull_request.user.login != 'ecospark[bot]' |
| 23 | + steps: |
| 24 | + - name: Generate GitHub App Token |
| 25 | + id: generate_token |
| 26 | + uses: actions/create-github-app-token@v2 |
| 27 | + with: |
| 28 | + app-id: ${{ secrets.ECOSPARK_APP_ID }} |
| 29 | + private-key: ${{ secrets.ECOSPARK_APP_PRIVATE_KEY }} |
| 30 | + |
| 31 | + - name: Checkout PR branch |
| 32 | + uses: actions/checkout@v6 |
| 33 | + with: |
| 34 | + ref: ${{ github.event.pull_request.head.ref }} |
| 35 | + repository: ${{ github.event.pull_request.head.repo.full_name }} |
| 36 | + token: ${{ steps.generate_token.outputs.token }} |
| 37 | + fetch-depth: 2 |
| 38 | + persist-credentials: false |
| 39 | + |
| 40 | + - name: Generate or remove changeset |
| 41 | + env: |
| 42 | + GH_TOKEN: ${{ steps.generate_token.outputs.token }} |
| 43 | + PR_NUMBER: ${{ github.event.pull_request.number }} |
| 44 | + PR_TITLE: ${{ github.event.pull_request.title }} |
| 45 | + PR_BODY: ${{ github.event.pull_request.body }} |
| 46 | + PR_REPO: ${{ github.event.pull_request.head.repo.full_name }} |
| 47 | + run: | |
| 48 | + set -euo pipefail |
| 49 | +
|
| 50 | + CHANGESET_FILE=".changeset/pr-${PR_NUMBER}.md" |
| 51 | +
|
| 52 | + # Configure git for pushing (persist-credentials is off) |
| 53 | + git config user.name "ecospark[bot]" |
| 54 | + git config user.email "ecospark[bot]@users.noreply.github.com" |
| 55 | + git remote set-url origin "https://x-access-token:${GH_TOKEN}@github.com/${PR_REPO}.git" |
| 56 | +
|
| 57 | + remove_changeset() { |
| 58 | + if [ -f "$CHANGESET_FILE" ]; then |
| 59 | + git rm "$CHANGESET_FILE" |
| 60 | + git commit -m "chore: remove auto-generated changeset for PR #${PR_NUMBER}" |
| 61 | + git push --force-with-lease |
| 62 | + fi |
| 63 | + } |
| 64 | +
|
| 65 | + # --- Parse conventional commit type from PR title --- |
| 66 | + if [[ "$PR_TITLE" =~ ^([a-z]+)(\(.+\))?(!)?\:\ .+ ]]; then |
| 67 | + TYPE="${BASH_REMATCH[1]}" |
| 68 | + BREAKING="${BASH_REMATCH[3]}" |
| 69 | + else |
| 70 | + echo "::warning::PR title does not match conventional commit format" |
| 71 | + remove_changeset |
| 72 | + exit 0 |
| 73 | + fi |
| 74 | +
|
| 75 | + # --- Determine bump type --- |
| 76 | + BUMP="" |
| 77 | + case "$TYPE" in |
| 78 | + feat) BUMP="minor" ;; |
| 79 | + fix|perf|revert) BUMP="patch" ;; |
| 80 | + *) BUMP="" ;; |
| 81 | + esac |
| 82 | +
|
| 83 | + # Breaking change overrides to major |
| 84 | + if [ "$BREAKING" = "!" ]; then |
| 85 | + BUMP="major" |
| 86 | + elif [ -n "$PR_BODY" ] && echo "$PR_BODY" | grep -qE '^BREAKING CHANGE:'; then |
| 87 | + BUMP="major" |
| 88 | + fi |
| 89 | +
|
| 90 | + # Non-bump type — clean up and exit |
| 91 | + if [ -z "$BUMP" ]; then |
| 92 | + echo "PR type '${TYPE}' does not require a changeset" |
| 93 | + remove_changeset |
| 94 | + exit 0 |
| 95 | + fi |
| 96 | +
|
| 97 | + # --- Parse release notes from PR body --- |
| 98 | + RELEASE_NOTES="" |
| 99 | + if [ -n "$PR_BODY" ]; then |
| 100 | + RELEASE_NOTES=$(echo "$PR_BODY" | \ |
| 101 | + sed -n '/^### Notes for release/,/^### /{/^### /!p}' | \ |
| 102 | + sed '/^<!--/,/-->$/d' | \ |
| 103 | + sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//' | \ |
| 104 | + sed '/^$/d') |
| 105 | + fi |
| 106 | +
|
| 107 | + # Explicit opt-out (N/A, N/A: reason, N/A – reason) |
| 108 | + if echo "$RELEASE_NOTES" | grep -qiE '^N/A'; then |
| 109 | + echo "Release notes set to N/A" |
| 110 | + remove_changeset |
| 111 | + exit 0 |
| 112 | + fi |
| 113 | +
|
| 114 | + # Fall back to PR title (strip type prefix) |
| 115 | + if [ -z "$RELEASE_NOTES" ]; then |
| 116 | + RELEASE_NOTES=$(echo "$PR_TITLE" | sed 's/^[a-z]*\(([^)]*)\)\?!\?:[[:space:]]*//') |
| 117 | + fi |
| 118 | +
|
| 119 | + # --- Detect affected packages from changed files --- |
| 120 | + CHANGED_FILES=$(gh api \ |
| 121 | + "repos/${{ github.repository }}/pulls/${PR_NUMBER}/files" \ |
| 122 | + --paginate \ |
| 123 | + --jq '.[].filename') |
| 124 | +
|
| 125 | + # Build package map dynamically from workspace |
| 126 | + declare -A PKG_MAP |
| 127 | + for pkg_json in packages/*/package.json packages/@*/*/package.json; do |
| 128 | + [ -f "$pkg_json" ] || continue |
| 129 | + pkg_private=$(jq -r '.private // false' "$pkg_json") |
| 130 | + [ "$pkg_private" = "true" ] && continue |
| 131 | + pkg_name=$(jq -r '.name' "$pkg_json") |
| 132 | + pkg_dir=$(dirname "$pkg_json")/ |
| 133 | + PKG_MAP["$pkg_dir"]="$pkg_name" |
| 134 | + done |
| 135 | +
|
| 136 | + # Match changed files to packages |
| 137 | + declare -A AFFECTED |
| 138 | + while IFS= read -r file; do |
| 139 | + [ -z "$file" ] && continue |
| 140 | + for prefix in "${!PKG_MAP[@]}"; do |
| 141 | + if [[ "$file" == ${prefix}* ]]; then |
| 142 | + AFFECTED["${PKG_MAP[$prefix]}"]=1 |
| 143 | + fi |
| 144 | + done |
| 145 | + done <<< "$CHANGED_FILES" |
| 146 | +
|
| 147 | + # No packages affected — skip |
| 148 | + if [ ${#AFFECTED[@]} -eq 0 ]; then |
| 149 | + echo "No public packages affected by changed files" |
| 150 | + remove_changeset |
| 151 | + exit 0 |
| 152 | + fi |
| 153 | +
|
| 154 | + # --- Generate changeset file --- |
| 155 | + { |
| 156 | + echo "---" |
| 157 | + for pkg in "${!AFFECTED[@]}"; do |
| 158 | + echo "'${pkg}': ${BUMP}" |
| 159 | + done |
| 160 | + echo "---" |
| 161 | + echo "" |
| 162 | + echo "${RELEASE_NOTES}" |
| 163 | + } > "$CHANGESET_FILE" |
| 164 | +
|
| 165 | + echo "Generated changeset:" |
| 166 | + cat "$CHANGESET_FILE" |
| 167 | +
|
| 168 | + # --- Commit and push --- |
| 169 | + git add "$CHANGESET_FILE" |
| 170 | +
|
| 171 | + if git diff --cached --quiet; then |
| 172 | + echo "No changes to changeset file" |
| 173 | + exit 0 |
| 174 | + fi |
| 175 | +
|
| 176 | + git commit -m "chore: update auto-generated changeset for PR #${PR_NUMBER}" |
| 177 | + git push --force-with-lease |
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