Check PR Approvals #920
Workflow file for this run
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name: Check PR Approvals | |
# For now, the workflow gets triggered only when a review is submitted | |
# This technically means, a PR with zero approvals can be merged by the rules of this workflow alone | |
# To protect against that scenario, we can turn on number of approvals required to 2 in the github settings | |
# of the repository | |
on: | |
pull_request_review: | |
types: [submitted] | |
jobs: | |
check-approvals: | |
runs-on: ubuntu-latest | |
steps: | |
- name: Checkout repository | |
uses: actions/checkout@v2 | |
- name: Install TOML parser | |
run: npm install @iarna/toml | |
- name: Check PR Relevance and Approvals | |
uses: actions/github-script@v6 | |
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; | |
} | |
// Get parsed data | |
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 | |
const reviews = await github.rest.pulls.listReviews({ | |
owner, | |
repo, | |
pull_number | |
}); | |
// Example: approvers = ["celina", "zyad"] | |
const approvers = new Set( | |
reviews.data | |
.filter(review => review.state === 'APPROVED') | |
.map(review => review.user.login) | |
); | |
const requiredApprovals = 2; | |
const currentCountfromCommittee = Array.from(approvers) | |
.filter(approver => requiredApprovers.includes(approver)) | |
.length; | |
// TODO: Improve logging and messaging to the user | |
console.log('PR Approvers:', Array.from(approvers)); | |
console.log('Required Approvers:', requiredApprovals); | |
// Core logic that checks if the approvers are in the committee | |
const checkName = 'PR Approval Status'; | |
const conclusion = (approvers.size >= requiredApprovals && currentCountfromCommittee >= 2) ? 'success' : 'failure'; | |
const output = { | |
title: checkName, | |
summary: `PR has ${approvers.size} total approvals and ${requiredApprovals} required approvals.`, | |
text: `Approvers: ${Array.from(approvers).join(', ')}\nRequired Approvers: ${requiredApprovers.join(', ')}` | |
}; | |
if (conclusion === 'failure') { | |
core.setFailed(`PR needs at least ${requiredApprovals} total approvals and 2 required approvals. Current approvals: ${approvers.size}, Required approvals: ${requiredApprovals}`); | |
} |