[pull] master from prebid:master #378
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| name: Check for linter warnings / exceptions | |
| on: | |
| pull_request_target: | |
| branches: | |
| - master | |
| jobs: | |
| check-linter: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Set up Node.js | |
| uses: actions/setup-node@v4 | |
| with: | |
| node-version: '20' | |
| - name: Checkout code | |
| uses: actions/checkout@v4 | |
| with: | |
| fetch-depth: 0 | |
| ref: ${{ github.event.pull_request.base.sha }} | |
| - name: Fetch base and target branches | |
| run: | | |
| git fetch origin +refs/heads/${{ github.event.pull_request.base.ref }}:refs/remotes/origin/${{ github.event.pull_request.base.ref }} | |
| git fetch origin +refs/pull/${{ github.event.pull_request.number }}/merge:refs/remotes/pull/${{ github.event.pull_request.number }}/merge | |
| - name: Install dependencies | |
| run: npm ci | |
| - name: Get the diff | |
| run: git diff --name-only origin/${{ github.event.pull_request.base.ref }}...refs/remotes/pull/${{ github.event.pull_request.number }}/merge | grep '^\(modules\|src\|libraries\|creative\)/.*\.js$' > __changed_files.txt || true | |
| - name: Run linter on base branch | |
| run: npx eslint --no-inline-config --format json $(cat __changed_files.txt | xargs stat --printf '%n\n' 2> /dev/null) > __base.json || true | |
| - name: Check out PR | |
| run: git checkout ${{ github.event.pull_request.head.sha }} | |
| - name: Install dependencies | |
| run: npm ci | |
| - name: Run linter on PR | |
| run: npx eslint --no-inline-config --format json $(cat __changed_files.txt | xargs stat --printf '%n\n' 2> /dev/null) > __pr.json || true | |
| - name: Compare them and post comment if necessary | |
| uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const fs = require('fs'); | |
| const path = require('path'); | |
| const process = require('process'); | |
| function parse(fn) { | |
| return JSON.parse(fs.readFileSync(fn)).reduce((memo, data) => { | |
| const file = path.relative(process.cwd(), data.filePath); | |
| if (!memo.hasOwnProperty(file)) { memo[file] = { errors: 0, warnings: 0} } | |
| data.messages.forEach(({severity}) => { | |
| memo[file][severity > 1 ? 'errors' : 'warnings']++; | |
| }); | |
| return memo; | |
| }, {}) | |
| } | |
| function mkDiff(old, new_) { | |
| const files = Object.fromEntries( | |
| Object.entries(new_) | |
| .map(([file, {errors, warnings}]) => { | |
| const {errors: oldErrors, warnings: oldWarnings} = old[file] || {}; | |
| return [file, {errors: Math.max(0, errors - (oldErrors ?? 0)), warnings: Math.max(0, warnings - (oldWarnings ?? 0))}] | |
| }) | |
| .filter(([_, {errors, warnings}]) => errors > 0 || warnings > 0) | |
| ) | |
| return Object.values(files).reduce((memo, {warnings, errors}) => { | |
| memo.errors += errors; | |
| memo.warnings += warnings; | |
| return memo; | |
| }, {errors: 0, warnings: 0, files}) | |
| } | |
| function mkComment({errors, warnings, files}) { | |
| function pl(noun, number) { | |
| return noun + (number === 1 ? '' : 's') | |
| } | |
| if (errors === 0 && warnings === 0) return; | |
| const summary = []; | |
| if (errors) summary.push(`**${errors}** linter ${pl('error', errors)}`) | |
| if (warnings) summary.push(`**${warnings}** linter ${pl('warning', warnings)}`) | |
| let cm = `Tread carefully! This PR adds ${summary.join(' and ')} (possibly disabled through directives):\n\n`; | |
| Object.entries(files).forEach(([file, {errors, warnings}]) => { | |
| const summary = []; | |
| if (errors) summary.push(`+${errors} ${pl('error', errors)}`); | |
| if (warnings) summary.push(`+${warnings} ${pl('warning', warnings)}`) | |
| cm += ` * \`${file}\` (${summary.join(', ')})\n` | |
| }) | |
| return cm; | |
| } | |
| const [base, pr] = ['__base.json', '__pr.json'].map(parse); | |
| const comment = mkComment(mkDiff(base, pr)); | |
| if (comment) { | |
| github.rest.issues.createComment({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| issue_number: context.issue.number, | |
| body: comment | |
| }); | |
| } |