check_license_and_history.yml

name: Check License and History

on:
  workflow_call:
  workflow_dispatch:
  push:
  pull_request_target:


jobs:
  changedfiles:
    runs-on: ubuntu-latest
    outputs:
      output1: ${{ steps.changes.outputs.diff_list }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          ref: ${{ github.event.pull_request.head.sha }}  
      - name: Get changed files
        id: changes       
        run: |
          echo "files added or changed in a PR: "
          git diff --name-only --diff-filter=ACMRT ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }}  -- . ':!.github' ':!*.md'
          echo "added or changed files: "
          git diff --name-only --diff-filter=ACMRT remotes/origin/main HEAD  -- . ':!.github' ':!*.md'
          echo "diff_list<<EOF" >> $GITHUB_OUTPUT
          git diff --name-only --diff-filter=ACMRT ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }}  -- . ':!.github' ':!*.md' >> $GITHUB_OUTPUT
          git diff --name-only --diff-filter=ACMRT remotes/origin/main HEAD  -- . ':!.github' ':!*.md' >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT
          
      - name: list new files
        run: |
          echo "New files in this PR ${{ steps.changes.outputs.diff_list }}"
  
  lint:
    runs-on: ubuntu-latest
    needs: changedfiles
    env: 
      OUTPUT1: ${{needs.changedfiles.outputs.output1}}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          ref: ${{ github.event.pull_request.head.sha }}
      - name: Check License
        run: |  
          exit_code=0
          for file in $(echo $OUTPUT1)
          do         
            if ! grep -qE "Copyright \(C\) 20[0-9]{2} Speedb Ltd\. All rights reserved\." "$file"; then
              echo $file does not have the Apache 2.0 license header && exit_code=222
            fi
          done
          exit $exit_code
      - name: Check HISTORY PR
        run: |  
          set +e
          git diff --name-only --diff-filter=ACMRT ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }}|grep -v "\.github" |grep -q [a-z,A-Z]
          if [ $? -eq "0" ]; then
            history_not_in=1
            git diff --name-only --diff-filter=M ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }}|grep -v "\.github" |grep -q "HISTORY.md"
            if [ $? -ne "0" ]; then
              echo "New files were added in this PR but the HISTORY.md file was not updated"
              else 
              history_not_in=0
            fi
            exit $history_not_in 
          fi
          echo "No files were added"
          exit 0

      - name: Check HISTORY WD
        run: |  
          set +e
          git diff --name-only --diff-filter=ACMRT remotes/origin/main HEAD  -- . ':!.github' ':!*.md' |grep -q [a-z,A-Z]
          if [ $? -eq "0" ]; then
            history_not_in=1
            git diff --name-only --diff-filter=ACMRT remotes/origin/main HEAD  -- . ':!.github' |grep -q "HISTORY.md"
            if [ $? -ne "0" ]; then
              echo "New files were added in this PR but the HISTORY.md file was not updated"
              else 
              history_not_in=0
            fi
            exit $history_not_in 
          fi
          echo "No files were added"
          exit 0