golangci-lint.yml

name: golangci-lint
on:
  push:
    tags:
      - v*
    branches:
      - master
  pull_request:
permissions:
  contents: read
  pull-requests: read
jobs:
  golangci:
    name: lint
    runs-on: ubuntu-latest
    env:
#      finds your first commit ahead from master then finds revision before your first commit to be used as starting point for linter
      REV: $(FIRST_COMMIT=$(git rev-list --topo-order origin/master..HEAD | tail -1); if [[ $FIRST_COMMIT == '' ]]; then echo $(git rev-parse origin/master^1); else echo $(git rev-parse $FIRST_COMMIT^1); fi)
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: '0'
      - uses: actions/setup-go@v5
        with:
          go-version: '1.x'
          check-latest: true
      - name: Echo start commit
        run: |
          rev=${{ env.REV }}
          if [[ $rev == '' ]]; then echo 'revision not found'; else echo used revision number: $rev; fi
      - name: golangci-lint
        uses: golangci/golangci-lint-action@v6
        with:
          version: 'v1.60'
          args: $(rev=${{ env.REV }}; if [[ $rev != '' ]]; then echo --new-from-rev=$rev; fi)