chatops_retest.yaml

# The _chatops_retest workflow reruns failed GHA for a PR
#
# This workflow is triggered by leaving a "/retest" comment on
# a pull request. If the required preconditions are met, it will
# rerun failed GitHub actions checks on that PR
#
# Condition for the "/retest" command are:
# - either the issuer is a maintainer
# - or the issuer is the owner the PR

name: Rerun Failed Actions
on:
  repository_dispatch:
    types: [retest-command]

jobs:
  retest:
    name: Rerun Failed Actions
    runs-on: ubuntu-latest
    steps:
    - name: Show Environment Variables
      run: env
    - name: Show Github Object
      run: |
        cat <<'EOF'
        ${{ toJson(github) }}
        EOF
    - name: Show Github Event Path Json
      run: 'cat $GITHUB_EVENT_PATH || true'
    - name: Rerun Failed Actions
      run: |
        echo '::group:: Get the PR commit sha'
        # Get the sha of the HEAD commit in the PR
        GITHUB_COMMIT_SHA=$(gh api $(echo ${GITHUB_PULL_URL#https://api.github.com/}) | \
            jq -r .head.sha)
        echo GITHUB_COMMIT_SHA=${GITHUB_COMMIT_SHA}
        echo '::endgroup::'

        echo '::group:: Get the list of run IDs'
        # Get a list of run IDs
        RUN_IDS=$(gh api repos/${GITHUB_REPO}/commits/${GITHUB_COMMIT_SHA}/check-runs | \
            jq -r '.check_runs[] | select(.name != "Rerun Failed Actions") | .html_url | capture("/runs/(?<number>[0-9]+)/job") | .number' | \
            sort -u)
        echo RUN_IDS=${RUN_IDS}
        echo '::endgroup::'

        echo '::group:: Rerun failed runs'
        # For each run, retrigger faild jobs
        for runid in ${RUN_IDS}; do
            echo Restarting run ${runid} for commit ${GITHUB_COMMIT_SHA}
            gh run \
                --repo ${GITHUB_REPO} \
                rerun ${runid} \
                --failed || true
        done
        echo '::endgroup::'
      env:
        GITHUB_TOKEN: ${{ secrets.CHATOPS_TOKEN }}
        GITHUB_REPO: ${{ github.event.client_payload.github.payload.repository.full_name }}
        GITHUB_PULL_URL: ${{ github.event.client_payload.github.payload.issue.pull_request.url }}

    - name: Create comment
      if: ${{ failure() && steps.landStack.outcome == 'failure' }}
      uses: peter-evans/create-or-update-comment@v4
      with:
        token: ${{ secrets.CHATOPS_TOKEN }}
        repository: ${{ github.event.client_payload.github.payload.repository.full_name }}
        issue-number: ${{ github.event.client_payload.github.payload.issue.number }}
        body: |
          Something went wrong with your `/${{ github.event.client_payload.slash_command.command }}` command: [please check the logs][1].

          [1]: ${{ steps.vars.outputs.run-url }}

    - name: Add reaction
      if: ${{ success() }}
      uses: peter-evans/create-or-update-comment@v4
      with:
        token: ${{ secrets.CHATOPS_TOKEN }}
        repository: ${{ github.event.client_payload.github.payload.repository.full_name }}
        comment-id: ${{ github.event.client_payload.github.payload.comment.id }}
        reactions: hooray