docker.yml

# Copyright 2021 OpenSSF Scorecard Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

permissions:
  contents: read

name: docker-build

on:
 pull_request:
  branches:
  - main

env:
  GO_VERSION: 1.22

jobs:
  docs_only_check:
    name: Check for docs-only change
    runs-on: ubuntu-latest
    permissions:
      contents: read
    outputs:
      docs_only: ${{ steps.docs_only_check.outputs.docs_only }}
    steps:
    - name: Check out code
      uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 #v4.1.6
      with:
        fetch-depth: 2 # needed to diff changed files
    - id: docs_only_check
      name: Check for docs-only changes
      run: |
        set +e # dont fail based on grep exit code
        git diff --name-only HEAD~1 | grep --ignore-case --invert-match '.md$'
        if [ $? -eq 1 ]; then
            # no grep match (all files end in .md) produces exit code 1
            echo "docs_only=true" >> $GITHUB_OUTPUT
        else
            echo "docs_only=false" >> $GITHUB_OUTPUT
        fi

  docker_matrix:
    strategy:
      matrix:
        target:
          - 'scorecard-docker'
          - 'cron-controller-docker'
          - 'cron-worker-docker'
          - 'cron-cii-worker-docker'
          - 'cron-bq-transfer-docker'
          - 'cron-webhook-docker'
          - 'cron-github-server-docker'
          - 'build-attestor-docker'
    name: ${{ matrix.target }}
    runs-on: ubuntu-latest
    permissions:
      contents: read
    needs: docs_only_check
    # ideally we put one "if" here, but due to how skipped matrix jobs work, we need one for each step
    # https://github.com/orgs/community/discussions/9141
    steps:
     - name: Harden Runner
       if: (needs.docs_only_check.outputs.docs_only != 'true')
       uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
       with:
         egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs
     - name: Clone the code
       if: (needs.docs_only_check.outputs.docs_only != 'true')
       uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
     - name: Setup Go # needed for some of the Makefile evaluations, even if building happens in Docker 
       if: (needs.docs_only_check.outputs.docs_only != 'true')
       uses: actions/setup-go@cdcb36043654635271a94b9a6d1392de5bb323a7 # v5.0.1
       with:
         go-version: ${{ env.GO_VERSION }}
         check-latest: true
         cache: false # the building happens in Docker, so saving this cache would negatively impact other builds
     - name: docker build
       if: (needs.docs_only_check.outputs.docs_only != 'true')
       run: make ${{ matrix.target }}