ci-lint-checks.yaml

name: Lint Checks

on:
  push:
    branches: [main]

  pull_request:
    branches: [main]

concurrency:
  group: ${{ github.workflow }}-${{ (github.event.pull_request && github.event.pull_request.number) || github.ref || github.run_id }}
  cancel-in-progress: true

# See https://github.com/ossf/scorecard/blob/main/docs/checks.md#token-permissions
permissions:  # added using https://github.com/step-security/secure-workflows
  contents: read

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
    - uses: step-security/harden-runner@91182cccc01eb5e619899d80e4e971d6181294a7 # v2.10.1
      with:
        egress-policy: audit # TODO: change to 'egress-policy: block' after a couple of runs

    - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0

    - uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a # v5.2.0
      with:
        go-version: 1.23.x

    - name: Print Jaeger version for no reason
      run: make echo-v1 echo-v2

    - run: make install-test-tools

    - run: make lint

  pull-request-preconditions:
    runs-on: ubuntu-latest
    steps:
    - uses: step-security/harden-runner@91182cccc01eb5e619899d80e4e971d6181294a7 # v2.10.1
      with:
        egress-policy: audit # TODO: change to 'egress-policy: block' after a couple of runs

    - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0

    - uses: ./.github/actions/block-pr-from-main-branch

    - run: |
        git fetch origin main
        make lint-nocommit

  dco-check:
    runs-on: ubuntu-latest
    steps:
    - uses: step-security/harden-runner@91182cccc01eb5e619899d80e4e971d6181294a7 # v2.10.1
      with:
        egress-policy: audit # TODO: change to 'egress-policy: block' after a couple of runs

    - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0

    - name: Set up Python 3.x for DCO check
      uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b # v5.3.0
      with:
        python-version: '3.x'

    - name: Run DCO check
      run: python3 scripts/lint/dco_check.py -b main -v --exclude-pattern '@users\.noreply\.github\.com'
      env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  generated-files-check:
    runs-on: ubuntu-latest
    steps:
    - uses: step-security/harden-runner@91182cccc01eb5e619899d80e4e971d6181294a7 # v2.10.1
      with:
        egress-policy: audit # TODO: change to 'egress-policy: block' after couple of runs

    - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
      with:
        submodules: recursive

    - uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a # v5.2.0
      with:
        go-version: 1.23.x

    - name: Verify Protobuf types are up to date
      run: make proto && git diff --name-status --exit-code

    - name: Verify Thrift types are up to date
      run: make thrift && git diff --name-status --exit-code

    - name: Verify Mockery types are up to date
      run: make generate-mocks && { if git status --porcelain | grep '??'; then exit 1; else git diff --name-status --exit-code; fi }

  lint-shell-scripts:
    runs-on: ubuntu-latest

    steps:
    - uses: step-security/harden-runner@91182cccc01eb5e619899d80e4e971d6181294a7 # v2.10.1
      with:
        egress-policy: audit

    - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0

    - run: sudo apt-get install shellcheck

    - run: shellcheck scripts/**/*.sh

    - name: Install shunit2 for shell unit tests
      uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
      with:
        repository: kward/shunit2
        path: .tools/shunit2

    - name: Run unit tests for scripts
      run: |
        SHUNIT2=.tools/shunit2 bash scripts/utils/compute-tags.test.sh

  binary-size-check:
    runs-on: ubuntu-latest
    steps:
    - uses: step-security/harden-runner@91182cccc01eb5e619899d80e4e971d6181294a7 # v2.10.1
      with:
        egress-policy: audit 

    - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
      with:
        submodules: true

    - uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a # v5.2.0
      with:
        go-version: 1.23.x

    - name: Setup Node.js version
      uses: ./.github/actions/setup-node.js

    - name: Build jaeger binary
      run: make build-jaeger

    - name: Calculate jaeger binary size
      run: |
        TOTAL_SIZE=$(du -sb ./cmd/jaeger/jaeger-linux-amd64 | cut -f1)
        echo "$TOTAL_SIZE" > ./new_jaeger_binary_size.txt
        echo "Total binary size: $TOTAL_SIZE bytes"
        
    - name: Restore previous binary size
      id: cache-binary-size
      uses: actions/cache/restore@1bd1e32a3bdc45362d1e726936510720a7c30a57      #v4.2.0
      with:
        path: ./jaeger_binary_size.txt
        key: jaeger_binary_size
        restore-keys: |
          jaeger_binary_size

    - name: Compare jaeger binary sizes
      if: steps.cache-binary-size.outputs.cache-matched-key != ''
      run: |
        OLD_BINARY_SIZE=$(cat ./jaeger_binary_size.txt)
        NEW_BINARY_SIZE=$(cat ./new_jaeger_binary_size.txt)
        echo "Previous binary size: $OLD_BINARY_SIZE bytes"
        echo "New binary size: $NEW_BINARY_SIZE bytes"
        
        SIZE_CHANGE=$(( $NEW_BINARY_SIZE - $OLD_BINARY_SIZE ))
        PERCENTAGE_CHANGE=$(( SIZE_CHANGE * 100 / $OLD_BINARY_SIZE ))
        echo "Size change: $PERCENTAGE_CHANGE%"
        if [ $PERCENTAGE_CHANGE -gt 2 ]; then
          echo "❌ binary size increased by more than 2% ($PERCENTAGE_CHANGE%)"
          exit 1
        else
          echo "✅ binary size change is within acceptable range ($PERCENTAGE_CHANGE%)"
        fi
 

    - name: Remove previous *_binary_*.txt
      run: |
        rm -rf ./jaeger_binary_size.txt
        mv ./new_jaeger_binary_size.txt ./jaeger_binary_size.txt
      
    - name: Save new jaeger binary size
      if: ${{ (github.event_name == 'push') && (github.ref == 'refs/heads/main') }}
      uses: actions/cache/save@1bd1e32a3bdc45362d1e726936510720a7c30a57     #v4.2.0
      with:
        path: ./jaeger_binary_size.txt
        key: jaeger_binary_size_${{ github.run_id }}