Update PR branches from fork #9
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# This workflow is centrally managed in https://github.com/asyncapi/.github/ | |
# Don't make changes to this file in this repo as they will be overwritten with changes made to the same file in above mentioned repo | |
# This workflow will run on every comment with /update or /u. And will create merge-commits for the PR. | |
# This also works with forks, not only with branches in the same repository/organization. | |
# Currently, does not work with forks in different organizations. | |
# This workflow will be distributed to all repositories in the AsyncAPI organization | |
name: Update PR branches from fork | |
on: | |
issue_comment: | |
types: [created] | |
jobs: | |
update-pr: | |
if: > | |
startsWith(github.repository, 'asyncapi/') && | |
github.event.issue.pull_request && | |
github.event.issue.state != 'closed' && ( | |
contains(github.event.comment.body, '/update') || | |
contains(github.event.comment.body, '/u') | |
) | |
runs-on: ubuntu-latest | |
steps: | |
- name: Get Pull Request Details | |
id: pr | |
uses: actions/github-script@v7 | |
with: | |
github-token: ${{ secrets.GH_TOKEN || secrets.GITHUB_TOKEN }} | |
previews: 'merge-info-preview' # https://docs.github.com/en/graphql/overview/schema-previews#merge-info-preview-more-detailed-information-about-a-pull-requests-merge-state-preview | |
script: | | |
const prNumber = context.payload.issue.number; | |
core.debug(`PR Number: ${prNumber}`); | |
const { data: pr } = await github.rest.pulls.get({ | |
owner: context.repo.owner, | |
repo: context.repo.repo, | |
pull_number: prNumber | |
}); | |
// If the PR has conflicts, we don't want to update it | |
const updateable = ['behind', 'blocked', 'unknown', 'draft', 'clean'].includes(pr.mergeable_state); | |
console.log(`PR #${prNumber} is ${pr.mergeable_state} and is ${updateable ? 'updateable' : 'not updateable'}`); | |
core.setOutput('updateable', updateable); | |
core.debug(`Updating PR #${prNumber} with head ${pr.head.sha}`); | |
return { | |
id: pr.node_id, | |
number: prNumber, | |
head: pr.head.sha, | |
} | |
- name: Update the Pull Request | |
if: steps.pr.outputs.updateable == 'true' | |
uses: actions/github-script@v7 | |
with: | |
github-token: ${{ secrets.GH_TOKEN || secrets.GITHUB_TOKEN }} | |
script: | | |
const mutation = `mutation update($input: UpdatePullRequestBranchInput!) { | |
updatePullRequestBranch(input: $input) { | |
pullRequest { | |
mergeable | |
} | |
} | |
}`; | |
const pr_details = ${{ steps.pr.outputs.result }}; | |
try { | |
const { data } = await github.graphql(mutation, { | |
input: { | |
pullRequestId: pr_details.id, | |
expectedHeadOid: pr_details.head, | |
} | |
}); | |
} catch (GraphQLError) { | |
core.debug(GraphQLError); | |
if ( | |
GraphQLError.name === 'GraphqlResponseError' && | |
GraphQLError.errors.some( | |
error => error.type === 'FORBIDDEN' || error.type === 'UNAUTHORIZED' | |
) | |
) { | |
// Add comment to PR if the bot doesn't have permissions to update the PR | |
const comment = `Hi @${context.actor}. Update of PR has failed. It can be due to one of the following reasons: | |
- I don't have permissions to update this PR. To update your fork with upstream using bot you need to enable [Allow edits from maintainers](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork) option in the PR. | |
- The fork is located in an organization, not under your personal profile. No solution for that. You are on your own with manual update. | |
- There may be a conflict in the PR. Please resolve the conflict and try again.`; | |
await github.rest.issues.createComment({ | |
owner: context.repo.owner, | |
repo: context.repo.repo, | |
issue_number: context.issue.number, | |
body: comment | |
}); | |
core.setFailed('Bot does not have permissions to update the PR'); | |
} else { | |
core.setFailed(GraphQLError.message); | |
} | |
} |