|
| 1 | +name: PR Category Check |
| 2 | + |
| 3 | +# Ensures every PR has at least one category checkbox checked. |
| 4 | +# Automatically applies matching GitHub labels to the PR. |
| 5 | +# Creates labels with custom colors if they don't exist yet. |
| 6 | +# Uses pull_request_target so it works for fork PRs too (runs in base repo context). |
| 7 | +# This is safe because we only read the PR body from the event payload — no fork code is checked out or executed. |
| 8 | + |
| 9 | +on: |
| 10 | + pull_request_target: |
| 11 | + types: [opened, edited, synchronize, reopened] |
| 12 | + |
| 13 | +permissions: |
| 14 | + pull-requests: write |
| 15 | + contents: read |
| 16 | + |
| 17 | +jobs: |
| 18 | + check-pr-category: |
| 19 | + name: Validate PR Category & Auto-Label |
| 20 | + runs-on: ubuntu-latest |
| 21 | + steps: |
| 22 | + - name: Check categories and apply labels |
| 23 | + uses: actions/github-script@v7 |
| 24 | + with: |
| 25 | + script: | |
| 26 | + const prBody = context.payload.pull_request.body || ''; |
| 27 | + const prNumber = context.payload.pull_request.number; |
| 28 | +
|
| 29 | + // Category checkboxes mapped to their GitHub label names, colors, and descriptions |
| 30 | + const categories = [ |
| 31 | + { |
| 32 | + label: 'bug fix', |
| 33 | + color: 'D73A4A', |
| 34 | + description: 'Fixes a bug or incorrect behavior', |
| 35 | + displayName: 'Bug Fix', |
| 36 | + pattern: /-\s*\[x\]\s*Bug Fix/i, |
| 37 | + }, |
| 38 | + { |
| 39 | + label: 'feature', |
| 40 | + color: '9333EA', |
| 41 | + description: 'Adds new functionality', |
| 42 | + displayName: 'Feature', |
| 43 | + pattern: /-\s*\[x\]\s*Feature/i, |
| 44 | + }, |
| 45 | + { |
| 46 | + label: 'performance', |
| 47 | + color: 'F97316', |
| 48 | + description: 'Improves performance (load time, memory, rendering)', |
| 49 | + displayName: 'Performance', |
| 50 | + pattern: /-\s*\[x\]\s*Performance/i, |
| 51 | + }, |
| 52 | + { |
| 53 | + label: 'tests', |
| 54 | + color: '3B82F6', |
| 55 | + description: 'Adds or updates test coverage', |
| 56 | + displayName: 'Tests', |
| 57 | + pattern: /-\s*\[x\]\s*Tests/i, |
| 58 | + }, |
| 59 | + { |
| 60 | + label: 'documentation', |
| 61 | + color: '10B981', |
| 62 | + description: 'Updates to docs, comments, or README', |
| 63 | + displayName: 'Documentation', |
| 64 | + pattern: /-\s*\[x\]\s*Documentation/i, |
| 65 | + }, |
| 66 | + ]; |
| 67 | +
|
| 68 | + const checkedCategories = categories.filter(cat => cat.pattern.test(prBody)); |
| 69 | + const uncheckedCategories = categories.filter(cat => !cat.pattern.test(prBody)); |
| 70 | +
|
| 71 | + // --- Step 1: Fail CI if no category is selected --- |
| 72 | + if (checkedCategories.length === 0) { |
| 73 | + const message = [ |
| 74 | + '## PR Category Required', |
| 75 | + '', |
| 76 | + 'This pull request does not have any **PR Category** selected.', |
| 77 | + 'Please edit your PR description and check **at least one** category checkbox:', |
| 78 | + '', |
| 79 | + '| Category | Description |', |
| 80 | + '|----------|-------------|', |
| 81 | + '| Bug Fix | Fixes a bug or incorrect behavior |', |
| 82 | + '| Feature | Adds new functionality |', |
| 83 | + '| Performance | Improves performance |', |
| 84 | + '| Tests | Adds or updates test coverage |', |
| 85 | + '| Documentation | Updates to docs, comments, or README |', |
| 86 | + '', |
| 87 | + 'Example: Change `- [ ] Bug Fix` to `- [x] Bug Fix`', |
| 88 | + '', |
| 89 | + '> **Tip:** You can select multiple categories if your PR spans several areas.', |
| 90 | + ].join('\n'); |
| 91 | +
|
| 92 | + core.setFailed(message); |
| 93 | + return; |
| 94 | + } |
| 95 | +
|
| 96 | + // --- Step 2: Ensure labels exist with proper colors --- |
| 97 | + const { data: existingLabels } = await github.rest.issues.listLabelsForRepo({ |
| 98 | + owner: context.repo.owner, |
| 99 | + repo: context.repo.repo, |
| 100 | + per_page: 100, |
| 101 | + }); |
| 102 | + const existingLabelNames = existingLabels.map(l => l.name); |
| 103 | +
|
| 104 | + for (const cat of categories) { |
| 105 | + if (!existingLabelNames.includes(cat.label)) { |
| 106 | + try { |
| 107 | + await github.rest.issues.createLabel({ |
| 108 | + owner: context.repo.owner, |
| 109 | + repo: context.repo.repo, |
| 110 | + name: cat.label, |
| 111 | + color: cat.color, |
| 112 | + description: cat.description, |
| 113 | + }); |
| 114 | + core.info(`Created label: "${cat.label}" with color #${cat.color}`); |
| 115 | + } catch (error) { |
| 116 | + core.warning(`Could not create label "${cat.label}". Error: ${error.message}`); |
| 117 | + } |
| 118 | + } |
| 119 | + } |
| 120 | +
|
| 121 | + // --- Step 3: Auto-apply labels for checked categories --- |
| 122 | + const labelsToAdd = checkedCategories.map(cat => cat.label); |
| 123 | + const labelsToRemove = uncheckedCategories.map(cat => cat.label); |
| 124 | +
|
| 125 | + // Get current labels on the PR |
| 126 | + const { data: currentLabels } = await github.rest.issues.listLabelsOnIssue({ |
| 127 | + owner: context.repo.owner, |
| 128 | + repo: context.repo.repo, |
| 129 | + issue_number: prNumber, |
| 130 | + }); |
| 131 | + const currentLabelNames = currentLabels.map(l => l.name); |
| 132 | +
|
| 133 | + // Add labels that are checked but not yet on the PR |
| 134 | + for (const label of labelsToAdd) { |
| 135 | + if (!currentLabelNames.includes(label)) { |
| 136 | + try { |
| 137 | + await github.rest.issues.addLabels({ |
| 138 | + owner: context.repo.owner, |
| 139 | + repo: context.repo.repo, |
| 140 | + issue_number: prNumber, |
| 141 | + labels: [label], |
| 142 | + }); |
| 143 | + core.info(`Added label: "${label}"`); |
| 144 | + } catch (error) { |
| 145 | + core.warning(`Could not add label "${label}". Error: ${error.message}`); |
| 146 | + } |
| 147 | + } |
| 148 | + } |
| 149 | +
|
| 150 | + // Remove labels that are unchecked but still on the PR |
| 151 | + for (const label of labelsToRemove) { |
| 152 | + if (currentLabelNames.includes(label)) { |
| 153 | + try { |
| 154 | + await github.rest.issues.removeLabel({ |
| 155 | + owner: context.repo.owner, |
| 156 | + repo: context.repo.repo, |
| 157 | + issue_number: prNumber, |
| 158 | + name: label, |
| 159 | + }); |
| 160 | + core.info(`Removed label: "${label}"`); |
| 161 | + } catch (error) { |
| 162 | + core.warning(`Could not remove label "${label}". Error: ${error.message}`); |
| 163 | + } |
| 164 | + } |
| 165 | + } |
| 166 | +
|
| 167 | + const selected = checkedCategories.map(c => c.displayName).join(', '); |
| 168 | + core.info(`PR categories selected: ${selected}`); |
| 169 | + core.info(`Labels synced: ${labelsToAdd.join(', ')}`); |
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