Combine PRs #1
Workflow file for this run
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: 'Combine PRs' | |
| # Controls when the action will run - in this case triggered manually | |
| on: | |
| workflow_dispatch: | |
| inputs: | |
| branchPrefix: | |
| description: 'Branch prefix to find combinable PRs based on' | |
| required: true | |
| default: 'dependabot' | |
| mustBeGreen: | |
| description: 'Only combine PRs that are green (status is success). Set to false if repo does not run checks' | |
| type: boolean | |
| required: true | |
| default: true | |
| combineBranchName: | |
| description: 'Name of the branch to combine PRs into' | |
| required: true | |
| default: 'combine-prs-branch' | |
| ignoreLabel: | |
| description: 'Exclude PRs with this label' | |
| required: true | |
| default: 'nocombine' | |
| # A workflow run is made up of one or more jobs that can run sequentially or in parallel | |
| jobs: | |
| # This workflow contains a single job called "combine-prs" | |
| combine-prs: | |
| # The type of runner that the job will run on | |
| runs-on: ubuntu-latest | |
| # Steps represent a sequence of tasks that will be executed as part of the job | |
| steps: | |
| - uses: actions/github-script@v6 | |
| id: create-combined-pr | |
| name: Create Combined PR | |
| with: | |
| github-token: ${{secrets.GITHUB_TOKEN}} | |
| script: | | |
| const pulls = await github.paginate('GET /repos/:owner/:repo/pulls', { | |
| owner: context.repo.owner, | |
| repo: context.repo.repo | |
| }); | |
| let branchesAndPRStrings = []; | |
| let baseBranch = null; | |
| let baseBranchSHA = null; | |
| for (const pull of pulls) { | |
| const branch = pull['head']['ref']; | |
| console.log('Pull for branch: ' + branch); | |
| if (branch.startsWith('${{ github.event.inputs.branchPrefix }}')) { | |
| console.log('Branch matched prefix: ' + branch); | |
| let statusOK = true; | |
| if(${{ github.event.inputs.mustBeGreen }}) { | |
| console.log('Checking green status: ' + branch); | |
| const stateQuery = `query($owner: String!, $repo: String!, $pull_number: Int!) { | |
| repository(owner: $owner, name: $repo) { | |
| pullRequest(number:$pull_number) { | |
| commits(last: 1) { | |
| nodes { | |
| commit { | |
| statusCheckRollup { | |
| state | |
| } | |
| } | |
| } | |
| } | |
| } | |
| } | |
| }` | |
| const vars = { | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| pull_number: pull['number'] | |
| }; | |
| const result = await github.graphql(stateQuery, vars); | |
| const [{ commit }] = result.repository.pullRequest.commits.nodes; | |
| const state = commit.statusCheckRollup.state | |
| console.log('Validating status: ' + state); | |
| if(state != 'SUCCESS') { | |
| console.log('Discarding ' + branch + ' with status ' + state); | |
| statusOK = false; | |
| } | |
| } | |
| console.log('Checking labels: ' + branch); | |
| const labels = pull['labels']; | |
| for(const label of labels) { | |
| const labelName = label['name']; | |
| console.log('Checking label: ' + labelName); | |
| if(labelName == '${{ github.event.inputs.ignoreLabel }}') { | |
| console.log('Discarding ' + branch + ' with label ' + labelName); | |
| statusOK = false; | |
| } | |
| } | |
| if (statusOK) { | |
| console.log('Adding branch to array: ' + branch); | |
| const prString = '#' + pull['number'] + ' ' + pull['title']; | |
| branchesAndPRStrings.push({ branch, prString }); | |
| baseBranch = pull['base']['ref']; | |
| baseBranchSHA = pull['base']['sha']; | |
| } | |
| } | |
| } | |
| if (branchesAndPRStrings.length == 0) { | |
| core.setFailed('No PRs/branches matched criteria'); | |
| return; | |
| } | |
| try { | |
| await github.rest.git.createRef({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| ref: 'refs/heads/' + '${{ github.event.inputs.combineBranchName }}', | |
| sha: baseBranchSHA | |
| }); | |
| } catch (error) { | |
| console.log(error); | |
| core.setFailed('Failed to create combined branch - maybe a branch by that name already exists?'); | |
| return; | |
| } | |
| let combinedPRs = []; | |
| let mergeFailedPRs = []; | |
| for(const { branch, prString } of branchesAndPRStrings) { | |
| try { | |
| await github.rest.repos.merge({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| base: '${{ github.event.inputs.combineBranchName }}', | |
| head: branch, | |
| }); | |
| console.log('Merged branch ' + branch); | |
| combinedPRs.push(prString); | |
| } catch (error) { | |
| console.log('Failed to merge branch ' + branch); | |
| mergeFailedPRs.push(prString); | |
| } | |
| } | |
| console.log('Creating combined PR'); | |
| const combinedPRsString = combinedPRs.join('\n'); | |
| let body = '✅ This PR was created by the Combine PRs action by combining the following PRs:\n' + combinedPRsString; | |
| if(mergeFailedPRs.length > 0) { | |
| const mergeFailedPRsString = mergeFailedPRs.join('\n'); | |
| body += '\n\n⚠️ The following PRs were left out due to merge conflicts:\n' + mergeFailedPRsString | |
| } | |
| await github.rest.pulls.create({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| title: 'Combined PR', | |
| head: '${{ github.event.inputs.combineBranchName }}', | |
| base: baseBranch, | |
| body: body | |
| }); |