chore: added automatic title prefix #1
Workflow file for this run
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| name: PR Labeller | |
| on: | |
| pull_request: | |
| types: [opened, edited] | |
| jobs: | |
| label-pr: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - uses: actions/checkout@v4.2.2 | |
| - name: Update PR labels and title | |
| uses: actions/github-script@v7.0.1 | |
| with: | |
| script: | | |
| const prBody = context.payload.pull_request.body; | |
| const shouldHaveLabels = new Set(); | |
| const labelMappings = { | |
| 'Bug fix': 'Bug', | |
| 'New feature': 'Feature', | |
| 'UI/UX improvement': 'UI/UX', | |
| 'Weather data processing': 'Data Processing', | |
| 'Optimisation': 'Optimisation', | |
| 'Security': 'Security', | |
| 'Documentation update': 'Documentation', | |
| 'Chore': 'Chore' | |
| }; | |
| const titlePrefixMappings = { | |
| 'Bug': 'fix', | |
| 'Feature': 'feat', | |
| 'UI/UX': 'ui', | |
| 'Data Processing': 'data', | |
| 'Optimisation': 'perf', | |
| 'Security': 'security', | |
| 'Documentation': 'docs', | |
| 'Chore': 'chore' | |
| }; | |
| const validPrefixes = Object.values(titlePrefixMappings); | |
| // Determine which labels should be present | |
| for (const [text, label] of Object.entries(labelMappings)) { | |
| if (prBody && prBody.includes(`- [x] ${text}`)) { | |
| shouldHaveLabels.add(label); | |
| } | |
| } | |
| // Get current labels | |
| const currentLabels = await github.rest.issues.listLabelsOnIssue({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| issue_number: context.payload.pull_request.number, | |
| }); | |
| const currentLabelNames = new Set(currentLabels.data.map(l => l.name)); | |
| const allMappedLabels = new Set(Object.values(labelMappings)); | |
| // Remove labels that shouldn't be there | |
| const labelsToRemove = [...currentLabelNames].filter(label => | |
| allMappedLabels.has(label) && !shouldHaveLabels.has(label) | |
| ); | |
| for (const label of labelsToRemove) { | |
| await github.rest.issues.removeLabel({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| issue_number: context.payload.pull_request.number, | |
| name: label | |
| }); | |
| } | |
| // Add missing labels | |
| const labelsToAdd = [...shouldHaveLabels].filter(label => | |
| !currentLabelNames.has(label) | |
| ); | |
| if (labelsToAdd.length > 0) { | |
| await github.rest.issues.addLabels({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| issue_number: context.payload.pull_request.number, | |
| labels: labelsToAdd | |
| }); | |
| } | |
| // Update PR title with prefix | |
| const selectedLabel = [...shouldHaveLabels][0]; | |
| if (selectedLabel) { | |
| const prefix = titlePrefixMappings[selectedLabel]; | |
| let currentTitle = context.payload.pull_request.title; | |
| // Check if current title has any prefix (including non-standard ones) | |
| const prefixMatch = currentTitle.match(/^([a-zA-Z]+):\s*/); | |
| if (prefixMatch) { | |
| const currentPrefix = prefixMatch[1].toLowerCase(); | |
| // Only update if current prefix is not the correct one | |
| if (!validPrefixes.includes(currentPrefix) || currentPrefix !== prefix) { | |
| currentTitle = currentTitle.replace(/^[a-zA-Z]+:\s*/, ''); | |
| const newTitle = `${prefix}: ${currentTitle}`; | |
| await github.rest.pulls.update({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| pull_number: context.payload.pull_request.number, | |
| title: newTitle.toLowerCase() | |
| }); | |
| } | |
| } else { | |
| // No prefix exists, add new one | |
| const newTitle = `${prefix}: ${currentTitle}`; | |
| await github.rest.pulls.update({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| pull_number: context.payload.pull_request.number, | |
| title: newTitle.toLowerCase() | |
| }); | |
| } | |
| } |