check_new_commits.yml

name: Check for new commits
on:
  schedule:
    - cron: '30 12 * * *'
  workflow_dispatch:
    inputs: {}

jobs:
  # Ensure all steps use a common revision
  check:
    name: Check for new commits since last release
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          repository: NationalSecurityAgency/Ghidra
      - name: Check for new commits
        id: check
        run: |
          LAST_REL_NAME=$(curl --silent "https://api.github.com/repos/${{github.repository}}/releases/latest" | jq .name)
          LAST_REL_COMMITID=$(echo $LAST_REL_NAME | grep -oP "\(\K\w+(?=\))")
          COMMIT_HASH_SHORT=$(git rev-parse --short HEAD)
          COMMIT_HASH_LONG=$(git rev-parse HEAD)
          echo "Latest commit is $COMMIT_HASH_LONG"
          if [[ "$LAST_REL_NAME" == *"$COMMIT_HASH_SHORT"* ]]; then
            echo "No commits since last release $LAST_REL_NAME"
          else
            echo "Found new commits since $LAST_REL_NAME. Triggering ci."
            echo "trigger=true" >> $GITHUB_OUTPUT
            echo "rev=$COMMIT_HASH_LONG" >> $GITHUB_OUTPUT
            echo "lastrev=$LAST_REL_COMMITID" >> $GITHUB_OUTPUT
          fi
      - name: Trigger build
        if: steps.check.outputs.trigger
        uses: benc-uk/workflow-dispatch@v1.2
        with:
          workflow: "Ghidra Build"
          token: ${{secrets.PAT_TOKEN}}
          inputs: '{ "rev": "${{steps.check.outputs.rev}}", "prevRev": "${{steps.check.outputs.lastrev}}" }'