mirror of
https://github.com/NixOS/nixpkgs.git
synced 2025-11-09 16:18:34 +01:00
0601cf6fd0
This moves the no-channel-base check into the prepare script to exit early and prevent all of CI to run against those branches. We also provide better output by posting a "Changes Requested" review, using the existing infrastructure from the old cherry-picks check. The review will be dismissed automatically once the branch has been corrected, because the commits check will run and do it.
103 lines
3.2 KiB
JavaScript
103 lines
3.2 KiB
JavaScript
const { classify } = require('../supportedBranches.js')
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const { postReview } = require('./reviews.js')
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module.exports = async ({ github, context, core, dry }) => {
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const pull_number = context.payload.pull_request.number
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for (const retryInterval of [5, 10, 20, 40, 80]) {
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core.info('Checking whether the pull request can be merged...')
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const prInfo = (
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await github.rest.pulls.get({
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...context.repo,
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pull_number,
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})
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).data
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if (prInfo.state !== 'open') throw new Error('PR is not open anymore.')
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if (prInfo.mergeable == null) {
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core.info(
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`GitHub is still computing whether this PR can be merged, waiting ${retryInterval} seconds before trying again...`,
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)
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await new Promise((resolve) => setTimeout(resolve, retryInterval * 1000))
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continue
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}
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const { base, head } = prInfo
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const baseClassification = classify(base.ref)
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core.setOutput('base', baseClassification)
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console.log('base classification:', baseClassification)
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const headClassification =
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base.repo.full_name === head.repo.full_name
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? classify(head.ref)
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: // PRs from forks are always considered WIP.
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{ type: ['wip'] }
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core.setOutput('head', headClassification)
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console.log('head classification:', headClassification)
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if (baseClassification.type.includes('channel')) {
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const { stable, version } = baseClassification
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const correctBranch = stable ? `release-${version}` : 'master'
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const body = [
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'The `nixos-*` and `nixpkgs-*` branches are pushed to by the channel release script and should not be merged into directly.',
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'',
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`Please target \`${correctBranch}\` instead.`,
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].join('\n')
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await postReview({ github, context, core, dry, body })
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throw new Error('The PR targets a channel branch.')
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}
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let mergedSha, targetSha
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if (prInfo.mergeable) {
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core.info('The PR can be merged.')
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mergedSha = prInfo.merge_commit_sha
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targetSha = (
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await github.rest.repos.getCommit({
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...context.repo,
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ref: prInfo.merge_commit_sha,
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})
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).data.parents[0].sha
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} else {
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core.warning('The PR has a merge conflict.')
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mergedSha = prInfo.head.sha
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targetSha = (
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await github.rest.repos.compareCommitsWithBasehead({
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...context.repo,
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basehead: `${base.sha}...${head.sha}`,
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})
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).data.merge_base_commit.sha
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}
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core.info(
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`Checking the commits:\nmerged: ${mergedSha}\ntarget: ${targetSha}`,
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)
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core.setOutput('mergedSha', mergedSha)
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core.setOutput('targetSha', targetSha)
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core.setOutput('systems', require('../supportedSystems.json'))
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const files = (
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await github.paginate(github.rest.pulls.listFiles, {
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...context.repo,
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pull_number: context.payload.pull_request.number,
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per_page: 100,
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})
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).map((file) => file.filename)
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if (files.includes('ci/pinned.json')) core.setOutput('touched', ['pinned'])
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else core.setOutput('touched', [])
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return
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}
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throw new Error(
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"Not retrying anymore. It's likely that GitHub is having internal issues: check https://www.githubstatus.com.",
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)
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}
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