|
| 1 | +name: PR Size |
| 2 | + |
| 3 | +on: |
| 4 | + pull_request_target: |
| 5 | + types: [opened, reopened, synchronize, ready_for_review, converted_to_draft] |
| 6 | + |
| 7 | +permissions: |
| 8 | + contents: read |
| 9 | + |
| 10 | +jobs: |
| 11 | + prepare-config: |
| 12 | + name: Prepare PR size config |
| 13 | + runs-on: ubuntu-24.04 |
| 14 | + outputs: |
| 15 | + labels_json: ${{ steps.config.outputs.labels_json }} |
| 16 | + steps: |
| 17 | + - id: config |
| 18 | + name: Build PR size label config |
| 19 | + uses: actions/github-script@v8 |
| 20 | + with: |
| 21 | + result-encoding: string |
| 22 | + script: | |
| 23 | + const managedLabels = [ |
| 24 | + { |
| 25 | + name: "size:XS", |
| 26 | + color: "0e8a16", |
| 27 | + description: "0-9 changed lines (additions + deletions).", |
| 28 | + }, |
| 29 | + { |
| 30 | + name: "size:S", |
| 31 | + color: "5ebd3e", |
| 32 | + description: "10-29 changed lines (additions + deletions).", |
| 33 | + }, |
| 34 | + { |
| 35 | + name: "size:M", |
| 36 | + color: "fbca04", |
| 37 | + description: "30-99 changed lines (additions + deletions).", |
| 38 | + }, |
| 39 | + { |
| 40 | + name: "size:L", |
| 41 | + color: "fe7d37", |
| 42 | + description: "100-499 changed lines (additions + deletions).", |
| 43 | + }, |
| 44 | + { |
| 45 | + name: "size:XL", |
| 46 | + color: "d93f0b", |
| 47 | + description: "500-999 changed lines (additions + deletions).", |
| 48 | + }, |
| 49 | + { |
| 50 | + name: "size:XXL", |
| 51 | + color: "b60205", |
| 52 | + description: "1,000+ changed lines (additions + deletions).", |
| 53 | + }, |
| 54 | + ]; |
| 55 | +
|
| 56 | + core.setOutput("labels_json", JSON.stringify(managedLabels)); |
| 57 | + sync-label-definitions: |
| 58 | + name: Sync PR size label definitions |
| 59 | + needs: prepare-config |
| 60 | + if: github.event_name != 'pull_request_target' |
| 61 | + runs-on: ubuntu-24.04 |
| 62 | + permissions: |
| 63 | + contents: read |
| 64 | + issues: write |
| 65 | + steps: |
| 66 | + - name: Ensure PR size labels exist |
| 67 | + uses: actions/github-script@v8 |
| 68 | + env: |
| 69 | + PR_SIZE_LABELS_JSON: ${{ needs.prepare-config.outputs.labels_json }} |
| 70 | + with: |
| 71 | + script: | |
| 72 | + const managedLabels = JSON.parse(process.env.PR_SIZE_LABELS_JSON ?? "[]"); |
| 73 | +
|
| 74 | + for (const label of managedLabels) { |
| 75 | + try { |
| 76 | + const { data: existing } = await github.rest.issues.getLabel({ |
| 77 | + owner: context.repo.owner, |
| 78 | + repo: context.repo.repo, |
| 79 | + name: label.name, |
| 80 | + }); |
| 81 | +
|
| 82 | + if ( |
| 83 | + existing.color !== label.color || |
| 84 | + (existing.description ?? "") !== label.description |
| 85 | + ) { |
| 86 | + await github.rest.issues.updateLabel({ |
| 87 | + owner: context.repo.owner, |
| 88 | + repo: context.repo.repo, |
| 89 | + name: label.name, |
| 90 | + color: label.color, |
| 91 | + description: label.description, |
| 92 | + }); |
| 93 | + } |
| 94 | + } catch (error) { |
| 95 | + if (error.status !== 404) { |
| 96 | + throw error; |
| 97 | + } |
| 98 | +
|
| 99 | + try { |
| 100 | + await github.rest.issues.createLabel({ |
| 101 | + owner: context.repo.owner, |
| 102 | + repo: context.repo.repo, |
| 103 | + name: label.name, |
| 104 | + color: label.color, |
| 105 | + description: label.description, |
| 106 | + }); |
| 107 | + } catch (createError) { |
| 108 | + if (createError.status !== 422) { |
| 109 | + throw createError; |
| 110 | + } |
| 111 | + } |
| 112 | + } |
| 113 | + } |
| 114 | + label: |
| 115 | + name: Label PR size |
| 116 | + needs: prepare-config |
| 117 | + if: github.event_name == 'pull_request_target' |
| 118 | + runs-on: ubuntu-24.04 |
| 119 | + permissions: |
| 120 | + contents: read |
| 121 | + issues: read |
| 122 | + pull-requests: write |
| 123 | + concurrency: |
| 124 | + group: pr-size-${{ github.event.pull_request.number }} |
| 125 | + cancel-in-progress: true |
| 126 | + steps: |
| 127 | + - name: Sync PR size label |
| 128 | + uses: actions/github-script@v8 |
| 129 | + env: |
| 130 | + PR_SIZE_LABELS_JSON: ${{ needs.prepare-config.outputs.labels_json }} |
| 131 | + with: |
| 132 | + script: | |
| 133 | + const issueNumber = context.payload.pull_request.number; |
| 134 | + const additions = context.payload.pull_request.additions ?? 0; |
| 135 | + const deletions = context.payload.pull_request.deletions ?? 0; |
| 136 | + const changedLines = additions + deletions; |
| 137 | + const managedLabels = JSON.parse(process.env.PR_SIZE_LABELS_JSON ?? "[]"); |
| 138 | +
|
| 139 | + const managedLabelNames = new Set(managedLabels.map((label) => label.name)); |
| 140 | +
|
| 141 | + const resolveSizeLabel = (totalChangedLines) => { |
| 142 | + if (totalChangedLines < 10) { |
| 143 | + return "size:XS"; |
| 144 | + } |
| 145 | +
|
| 146 | + if (totalChangedLines < 30) { |
| 147 | + return "size:S"; |
| 148 | + } |
| 149 | +
|
| 150 | + if (totalChangedLines < 100) { |
| 151 | + return "size:M"; |
| 152 | + } |
| 153 | +
|
| 154 | + if (totalChangedLines < 500) { |
| 155 | + return "size:L"; |
| 156 | + } |
| 157 | +
|
| 158 | + if (totalChangedLines < 1000) { |
| 159 | + return "size:XL"; |
| 160 | + } |
| 161 | +
|
| 162 | + return "size:XXL"; |
| 163 | + }; |
| 164 | +
|
| 165 | + const nextLabelName = resolveSizeLabel(changedLines); |
| 166 | +
|
| 167 | + const { data: currentLabels } = await github.rest.issues.listLabelsOnIssue({ |
| 168 | + owner: context.repo.owner, |
| 169 | + repo: context.repo.repo, |
| 170 | + issue_number: issueNumber, |
| 171 | + per_page: 100, |
| 172 | + }); |
| 173 | +
|
| 174 | + for (const label of currentLabels) { |
| 175 | + if (!managedLabelNames.has(label.name) || label.name === nextLabelName) { |
| 176 | + continue; |
| 177 | + } |
| 178 | +
|
| 179 | + try { |
| 180 | + await github.rest.issues.removeLabel({ |
| 181 | + owner: context.repo.owner, |
| 182 | + repo: context.repo.repo, |
| 183 | + issue_number: issueNumber, |
| 184 | + name: label.name, |
| 185 | + }); |
| 186 | + } catch (removeError) { |
| 187 | + if (removeError.status !== 404) { |
| 188 | + throw removeError; |
| 189 | + } |
| 190 | + } |
| 191 | + } |
| 192 | +
|
| 193 | + if (!currentLabels.some((label) => label.name === nextLabelName)) { |
| 194 | + await github.rest.issues.addLabels({ |
| 195 | + owner: context.repo.owner, |
| 196 | + repo: context.repo.repo, |
| 197 | + issue_number: issueNumber, |
| 198 | + labels: [nextLabelName], |
| 199 | + }); |
| 200 | + } |
| 201 | +
|
| 202 | + core.info(`PR #${issueNumber}: ${changedLines} changed lines -> ${nextLabelName}`); |
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