check-package-update-gate.yml

# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.

name: Check Package Update Gate

on:
  push:
    branches: [main, 2.0*, 3.0*, fasttrack/*]
  pull_request:
    branches: [main, 2.0*, 3.0*, fasttrack/*]

jobs:

  build:
    name: Check Package Update Gate
    runs-on: ubuntu-latest
    steps:

    - name: Check out code
      uses: actions/checkout@v4

    - name: Get base commit for PRs
      if: ${{ github.event_name == 'pull_request' }}
      run: |
        git fetch origin ${{ github.base_ref }}
        echo "base_sha=$(git rev-parse origin/${{ github.base_ref }})" >> $GITHUB_ENV
        echo "Merging ${{ github.sha }} into ${{ github.base_ref }}"

    - name: Get base commit for Pushes
      if: ${{ github.event_name == 'push' }}
      run: |
        git fetch origin ${{ github.event.before }}
        echo "base_sha=${{ github.event.before }}" >> $GITHUB_ENV
        echo "Merging ${{ github.sha }} into ${{ github.event.before }}"

    - name: Get the changed files
      run: |
        echo "Files changed: '$(git diff-tree --no-commit-id --name-only -r ${{ env.base_sha }} ${{ github.sha }})'"
        changed_specs=$(git diff-tree --diff-filter=d  --no-commit-id --name-only -r ${{ env.base_sha }} ${{ github.sha }} | { grep "SPECS.*/.*\.spec$" || test $? = 1; })
        echo "Files to validate: '${changed_specs}'"
        echo "updated-specs=$(echo ${changed_specs})" >> $GITHUB_ENV

    - name: Check each spec
      run: |

        if [[ -z "${{ env.updated-specs }}" ]]; then
          echo "No spec files to validate. Exiting."
          exit 0
        fi

        for spec in ${{ env.updated-specs }}
          do
            echo "Checking '$spec'."
            # Expand macros if present
            name=$(rpmspec --parse "$spec" | grep -E "^Name:\s*(.*)" | awk '{print $2}')
            version=$(rpmspec --parse "$spec" | grep -E "^Version:\s*(.*)" | awk '{print $2}')

            # Read from packagelist-gate.csv and iterate each row
            1st column: package name
            2nd column: condition (>=, >, =,'')
            3rd column: version number
            
            while IFS=, read -r package_name condition version_number; do
              if [[ "$name" == "$package_name" ]]; then
                  case "$condition" in
                      ">=" | ">" | "=")
                          if [[ ("$condition" == ">=" && "$(printf '%s\n' "$version" "$version_number" | sort -V | head -n1)" == "$version_number") ||
                                ("$condition" == ">" && "$(printf '%s\n' "$version" "$version_number" | sort -V | head -n1)" != "$version") ||
                                ("$condition" == "=" && "$version" == "$version_number") ]]; then
                              1>&2 echo "**** ERROR ****"
                              1>&2 echo "Spec '$spec' version '$version' is not allowed in Azure Linux. Error:'$spec $condition $version_number'."
                              1>&2 echo "**** ERROR ****"
                              error_found=1
                          fi
                          ;;
                      *)
                          1>&2 echo "**** ERROR ****"
                          1>&2 echo "Spec $spec is not allowed in Azure Linux"
                          1>&2 echo "**** ERROR ****"
                          error_found=1
                          ;;
                  esac
              fi
            done < .github/workflows/packagelist-gate.csv  
          done

        if [[ -n $error_found ]]
        then
          exit 1
        fi