Create a github_webhook url that will update the hackathon PRs #6399
Workflow file for this run
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| name: Add Files Changed Label | |
| # Uses pull_request_target so it runs with base repo permissions for forked PRs. | |
| # SECURITY: We do NOT check out or execute PR code. We only use the GitHub API. | |
| on: | |
| pull_request_target: | |
| types: | |
| - opened | |
| - synchronize | |
| - reopened | |
| - ready_for_review | |
| - edited | |
| permissions: | |
| contents: write | |
| pull-requests: write | |
| issues: write | |
| jobs: | |
| add_files_changed_label: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Add Files Changed Label | |
| uses: actions/github-script@v7 | |
| with: | |
| github-token: ${{ secrets.GITHUB_TOKEN }} | |
| script: | | |
| const pr = context.payload.pull_request; | |
| if (!pr) { | |
| core.info('No pull_request in context. Skipping.'); | |
| return; | |
| } | |
| const owner = context.repo.owner; | |
| const repo = context.repo.repo; | |
| const pull_number = pr.number; | |
| // Get all files (with pagination) and count them | |
| const files = await github.paginate(github.rest.pulls.listFiles, { | |
| owner, | |
| repo, | |
| pull_number, | |
| per_page: 100, | |
| }); | |
| const count = files.length; | |
| // Determine the label based on the number of files changed | |
| const newLabel = `files-changed: ${count}`; | |
| // Set color based on the number of files changed | |
| let labelColor; | |
| if (count === 0) { | |
| labelColor = 'cccccc'; // Gray | |
| } else if (count === 1) { | |
| labelColor = '0e8a16'; // Green | |
| } else if (count >= 2 && count <= 5) { | |
| labelColor = 'fbca04'; // Yellow | |
| } else if (count >= 6 && count <= 10) { | |
| labelColor = 'ff9800'; // Orange | |
| } else { | |
| labelColor = 'e74c3c'; // Red (project's preferred red color) | |
| } | |
| // Set grammatically correct description | |
| const description = count === 1 ? 'PR changes 1 file' : `PR changes ${count} files`; | |
| // Get current labels on the PR | |
| const { data: current } = await github.rest.issues.listLabelsOnIssue({ | |
| owner, | |
| repo, | |
| issue_number: pull_number, | |
| per_page: 100 | |
| }); | |
| const currentNames = new Set(current.map(l => l.name)); | |
| // Remove any existing files-changed labels | |
| const filesChangedRegex = /^files-changed:/i; | |
| for (const name of currentNames) { | |
| if (filesChangedRegex.test(name) && name !== newLabel) { | |
| try { | |
| await github.rest.issues.removeLabel({ | |
| owner, | |
| repo, | |
| issue_number: pull_number, | |
| name | |
| }); | |
| core.info(`Removed label ${name}`); | |
| } catch (err) { | |
| core.warning(`Failed to remove label ${name}: ${err.message}`); | |
| } | |
| } | |
| } | |
| // Ensure the new label exists (create if missing) | |
| async function ensureLabelExists(labelName) { | |
| try { | |
| await github.rest.issues.getLabel({ owner, repo, name: labelName }); | |
| } catch (e) { | |
| if (e.status === 404) { | |
| await github.rest.issues.createLabel({ | |
| owner, | |
| repo, | |
| name: labelName, | |
| color: labelColor, | |
| description: description, | |
| }); | |
| core.info(`Created label ${labelName}`); | |
| } else { | |
| throw e; | |
| } | |
| } | |
| } | |
| await ensureLabelExists(newLabel); | |
| // Add the label if it isn't already present | |
| if (!currentNames.has(newLabel)) { | |
| await github.rest.issues.addLabels({ | |
| owner, | |
| repo, | |
| issue_number: pull_number, | |
| labels: [newLabel] | |
| }); | |
| core.info(`Applied label ${newLabel} to PR #${pull_number}`); | |
| } else { | |
| core.info(`Label ${newLabel} already present on PR #${pull_number}`); | |
| } | |
| // Log the count for transparency | |
| core.info(`PR #${pull_number} has ${count} changed file(s).`); |