rerun.yml

name: Auto-rerun (Uninstall .NET SDKs failure)

on:
  workflow_run:
    workflows: ["CI"]
    types: [completed]

permissions:
  actions: write
  contents: read

jobs:
  rerun_if_uninstall_dotnet_failed:
    if: >
      github.event.workflow_run.conclusion == 'failure' &&
      github.event.workflow_run.run_attempt < 3
    runs-on: ubuntu-latest

    steps:
      - name: Decide whether to rerun
        id: decide
        env:
          GH_TOKEN: ${{ github.token }}
          REPO: ${{ github.repository }}
          RUN_ID: ${{ github.event.workflow_run.id }}
          STEP_NAME: "Uninstall .NET SDKs"
        shell: bash
        run: |
          set -euo pipefail

          # Fetch jobs + steps for the failed workflow run
          jobs_json="$(gh api -H "Accept: application/vnd.github+json" \
            "/repos/${REPO}/actions/runs/${RUN_ID}/jobs?per_page=100")"

          # Check whether the specific step failed
          if echo "$jobs_json" | jq -e --arg step "$STEP_NAME" '
              .jobs[].steps[]? | select(.name == $step and .conclusion == "failure")
            ' >/dev/null; then
            echo "rerun=true" >> "$GITHUB_OUTPUT"
            echo "Detected failure in step: $STEP_NAME"
          else
            echo "rerun=false" >> "$GITHUB_OUTPUT"
            echo "No failure in step '$STEP_NAME' detected; not rerunning."
          fi

      - name: Rerun failed jobs
        if: steps.decide.outputs.rerun == 'true'
        env:
          GH_TOKEN: ${{ github.token }}
          REPO: ${{ github.repository }}
          RUN_ID: ${{ github.event.workflow_run.id }}
        shell: bash
        run: |
          gh run rerun "$RUN_ID" -R "$REPO" --failed