👷 Validate PR Title Length #16
Workflow file for this run
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name: Validate PR Titles | |
on: | |
pull_request: | |
types: [opened, edited, synchronize, reopened] | |
permissions: | |
contents: read | |
pull-requests: write | |
env: | |
# https://cbea.ms/git-commit/#limit-50 | |
MAX_PR_TITLE_LENGTH: 50 | |
jobs: | |
validate-pr-title: | |
runs-on: ubuntu-latest | |
steps: | |
- name: Get PR info | |
id: pr | |
uses: actions/github-script@v7 | |
with: | |
script: | | |
// Get PR Title | |
const title = context.payload.pull_request.title; | |
// Get PR Comments | |
const comments = await github.rest.issues.listComments({ | |
owner: context.repo.owner, | |
repo: context.repo.repo, | |
issue_number: context.issue.number | |
}); | |
core.setOutput('title', title); | |
core.setOutput('comments', comments.data); | |
- name: PR title should start with emoji | |
uses: actions/github-script@v7 | |
if: always() | |
with: | |
script: | | |
const prTitle = "${{ steps.pr.outputs.title }}"; | |
const comments = ${{ steps.pr.outputs.comments }}; | |
// Match either: | |
// 1. Unicode emoji at start (using Unicode properties) | |
// 2. GitHub emoji shortcode format (e.g. :fire:) | |
const emojiRegex = /^(?:[\p{Emoji_Presentation}\p{Extended_Pictographic}]|:[a-z0-9_+-]+:)/u; | |
// Find our bot's validation comment if it exists | |
const botComment = comments.find(comment => | |
comment.user.type === 'Bot' && | |
comment.body.includes('Your PR title should start with an emoji!') | |
); | |
if (!emojiRegex.test(prTitle)) { | |
// Only add a comment if we haven't already | |
if (!botComment) { | |
await github.rest.issues.createComment({ | |
owner: context.repo.owner, | |
repo: context.repo.repo, | |
issue_number: context.issue.number, | |
body: `⚠️ Your PR title should start with an emoji!\n\nExample valid titles:\n- ✨ Add new feature (or :sparkles: Add new feature)\n- 🐛 Fix login bug (or :bug: Fix login bug)\n- 📝 Update documentation (or :memo: Update documentation)\n\nNeed emoji suggestions? Check out [gitmoji.dev](https://gitmoji.dev) for a comprehensive list of Git-friendly emojis!\n\nPlease update your PR title and try again.` | |
}); | |
} | |
// Create warning annotation instead of failing | |
core.warning(`PR title should start with an emoji! Current title: "${prTitle}". Use either Unicode emoji (🔥) or GitHub shortcode format (:fire:)`); | |
} else if (botComment) { | |
// If title is now valid and we have a comment, delete it | |
await github.rest.issues.deleteComment({ | |
owner: context.repo.owner, | |
repo: context.repo.repo, | |
comment_id: botComment.id | |
}); | |
} | |
- name: PR title should not exceed ${{ env.MAX_PR_TITLE_LENGTH }} characters | |
uses: actions/github-script@v7 | |
if: always() | |
with: | |
script: | | |
const prTitle = "${{ steps.pr.outputs.title }}"; | |
const comments = ${{ steps.pr.outputs.comments }}; | |
const MAX_LENGTH = ${{ env.MAX_PR_TITLE_LENGTH }}; | |
// Match either: | |
// 1. Unicode emoji at start (using Unicode properties) | |
// 2. GitHub emoji shortcode format (e.g. :fire:) | |
const emojiRegex = /^(?:[\p{Emoji_Presentation}\p{Extended_Pictographic}]|:[a-z0-9_+-]+:)/u; | |
// Remove emoji prefix and its trailing space for length check | |
const titleWithoutEmoji = prTitle.replace(emojiRegex, ''); | |
// Find our bot's validation comment if it exists | |
const botComment = comments.find(comment => | |
comment.user.type === 'Bot' && | |
comment.body.includes('Your PR title is too long!') | |
); | |
if (titleWithoutEmoji.length > MAX_LENGTH) { | |
if (!botComment) { | |
await github.rest.issues.createComment({ | |
owner: context.repo.owner, | |
repo: context.repo.repo, | |
issue_number: context.issue.number, | |
body: `⚠️ Your PR title is too long!\n\nPR titles should be no longer than ${MAX_LENGTH} characters (excluding emoji). Your title is ${titleWithoutEmoji.length} characters long.\n\nPlease update your PR title to be more concise.` | |
}); | |
} | |
// Create warning annotation instead of failing | |
// Change to `core.setFailed()` to fail the check | |
core.warning(`PR title is too long (${titleWithoutEmoji.length}/${MAX_LENGTH} characters, excluding emoji)`); | |
} else if (botComment) { | |
await github.rest.issues.deleteComment({ | |
owner: context.repo.owner, | |
repo: context.repo.repo, | |
comment_id: botComment.id | |
}); | |
} |