Check PR Approvals #1048
Workflow file for this run
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# This workflow checks that the PR has been approved by 2+ members of the committee listed in `pull_requests.toml`. | |
# | |
# Run this action when a pull request review is submitted / dismissed. | |
# Note that an approval can be dismissed, and this can affect the job status. | |
# We currently trust that contributors won't make significant changes to their PRs after approval, so we accept | |
# changes after approval. | |
# | |
# We still need to run this in the case of a merge group, since it is a required step. In that case, the workflow | |
# is a NOP. | |
name: Check PR Approvals | |
on: | |
merge_group: | |
pull_request_review: | |
types: [submitted, dismissed] | |
jobs: | |
check-approvals: | |
runs-on: ubuntu-latest | |
steps: | |
- name: Checkout repository | |
uses: actions/checkout@v2 | |
if: ${{ github.event_name != 'merge_group' }} | |
- name: Install TOML parser | |
run: npm install @iarna/toml | |
if: ${{ github.event_name != 'merge_group' }} | |
- name: Check PR Relevance and Approvals | |
uses: actions/github-script@v6 | |
if: ${{ github.event_name != 'merge_group' }} | |
with: | |
script: | | |
const fs = require('fs'); | |
const toml = require('@iarna/toml'); | |
const { owner, repo } = context.repo; | |
let pull_number; | |
if (github.event_name === 'workflow_dispatch') { | |
const branch = github.ref.replace('refs/heads/', ''); | |
const prs = await github.rest.pulls.list({ | |
owner, | |
repo, | |
head: `${owner}:${branch}`, | |
state: 'open' | |
}); | |
if (prs.data.length === 0) { | |
console.log('No open PR found for this branch.'); | |
return; | |
} | |
pull_number = prs.data[0].number; | |
} else { | |
pull_number = context.issue.number; | |
} | |
console.log(`owner is ${owner}`); | |
console.log(`pull_number is ${pull_number}`); | |
// Get parsed data | |
let requiredApprovers; | |
try { | |
const tomlContent = fs.readFileSync('.github/pull_requests.toml', 'utf8'); | |
console.log('TOML content:', tomlContent); | |
const tomlData = toml.parse(tomlContent); | |
console.log('Parsed TOML data:', JSON.stringify(tomlData, null, 2)); | |
if (!tomlData.committee || !Array.isArray(tomlData.committee.members)) { | |
throw new Error('committee.members is not an array in the TOML file'); | |
} | |
requiredApprovers = tomlData.committee.members; | |
} catch (error) { | |
console.error('Error reading or parsing TOML file:', error); | |
core.setFailed('Failed to read required approvers list'); | |
return; | |
} | |
// Get all reviews with pagination | |
async function getAllReviews() { | |
let allReviews = []; | |
let page = 1; | |
let page_limit = 100; | |
while (page < page_limit) { | |
const response = await github.rest.pulls.listReviews({ | |
owner, | |
repo, | |
pull_number, | |
per_page: 100, | |
page | |
}); | |
allReviews = allReviews.concat(response.data); | |
if (response.data.length < 100) { | |
break; | |
} | |
page++; | |
} | |
if (page == page_limit) { | |
console.log(`WARNING: Reached page limit of ${page_limit} while fetching reviews data; approvals count may be less than the real total.`) | |
} | |
return allReviews; | |
} | |
const reviews = await getAllReviews(); | |
// Example: approvers = ["celina", "zyad"] | |
const approvers = new Set( | |
reviews | |
.filter(review => review.state === 'APPROVED') | |
.map(review => review.user.login) | |
); | |
const requiredApprovals = 2; | |
const committeeApprovers = Array.from(approvers) | |
.filter(approver => requiredApprovers.includes(approver)); | |
const currentCountfromCommittee = committeeApprovers.length; | |
// Core logic that checks if the approvers are in the committee | |
const conclusion = (currentCountfromCommittee >= 2) ? 'success' : 'failure'; | |
console.log('PR Approval Status'); | |
console.log(`PR has ${approvers.size} total approvals and ${currentCountfromCommittee} required approvals from the committee.`); | |
console.log(`Committee Members: [${requiredApprovers.join(', ')}]`); | |
console.log(`Committee Approvers: ${committeeApprovers.length === 0 ? 'NONE' : `[${committeeApprovers.join(', ')}]`}`); | |
console.log(`All Approvers: ${approvers.size === 0 ? 'NONE' : `[${Array.from(approvers).join(', ')}]`}`); | |
if (conclusion === 'failure') { | |
core.setFailed(`PR needs 2 approvals from committee members, but it has ${currentCountfromCommittee}`); | |
} else { | |
core.info('PR approval check passed successfully.'); | |
} |