Check_On_Commit.yml

name: Push Check on Changed Scripts
run-name: Action on push by ${{ github.actor }} 

on:
  workflow_call:
    inputs:
    
      image_to_use:
        required: true
        type: string

      action_branch: 
        required: false
        type: string
      
jobs:
  Check_on_Changed_Scripts:
    name: Push Check to ${{ github.head_ref }} by ${{ github.actor }}
    runs-on: ubuntu-latest
    container:
      image: ${{ inputs.image_to_use }}
      credentials:
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}
         
    steps:
      - run: echo "Checking in ${{ inputs.image_to_use }}"

      - uses: actions/checkout@v3
        with:
           token: ${{secrets.GITHUB_TOKEN}}
           ref: ${{ github.ref_name }}
           fetch-depth: 0

      - name: Setup Workflow
        id: setup_workflow
        run: |
          echo "Checking in ${{ inputs.image_to_use }}"

          export current_wd="/__w/${GITHUB_REPOSITORY#*/}/${GITHUB_REPOSITORY#*/}"
          echo "$current_wd"

          conda env list

          # Configure git
          git config --global --add safe.directory $current_wd

          repo_name=${{ github.repository }}
          access_token=${{ secrets.GITHUB_TOKEN }}

          # Acquire main branch's latest hash for reference
          # This is to handle the error message when a new branch
          # is created from a push

          response=$(curl -s -H "Authorization: Bearer $access_token" \
            "https://api.github.com/repos/$repo_name/branches/main")

          commit_hash=$(echo "$response" | \
            grep -oP '(?<="sha": ")[^"]+' | head -n 1)

          echo "Latest commit hash of main branch: $commit_hash"
          echo "main_commit_hash=$commit_hash" >> $GITHUB_ENV

          # Getting current commit information

          echo "Current Commit SHA: ${{ github.sha }}"
          echo "Previous Commit SHA: ${{ github.event.before }}"

          # The series of 0 is the indication of creation from push

          if [ "${{ github.event.before }}" = \
            "0000000000000000000000000000000000000000" ]; then
            echo "Branch ${{ github.event_name }} is created by current push."
            echo "create_on_push=Yes" >> $GITHUB_ENV
          else
            echo "Branch ${{ github.event_name }} is not created from the current push."
            echo "create_on_push=No" >> $GITHUB_ENV
          fi

      - id: Lint_check
        name: Use lintr to check code
        run: |
          export current_wd="/__w/${GITHUB_REPOSITORY#*/}/${GITHUB_REPOSITORY#*/}"
          echo "$current_wd"
          
          git config --global --add safe.directory "$current_wd"
          
          git clone https://github.com/fnlcr-bids-sdsi/gitflow-R.git
          
          cd gitflow-R

          git checkout "${{ inputs.action_branch }}"
          
          cd -
          
          if [ "${{ env.create_on_push }}" = "Yes" ]; then

            bash $current_wd/gitflow-R/src/Lint_on_Commit.sh \
              "$current_wd" \
              "${{ env.main_commit_hash }}"
          
          else

            bash $current_wd/gitflow-R/src/Lint_on_Commit.sh \
              "$current_wd" \
              "${{ env.main_commit_hash }}"

          fi
           
      - id: Unit_Test
        name: Unit test for changed scripts
        run: |
          export current_wd="/__w/${GITHUB_REPOSITORY#*/}/${GITHUB_REPOSITORY#*/}"
          echo "$current_wd"
          
          bash $current_wd/gitflow-R/src/Check_on_Commit.sh \
              "$current_wd" \
              "${{ github.event.before }}"          
          
      - name: Undo Push (Off)
        if: ${{ failure() }}
        run: |

          echo "Undo Push is turned off."

          # if [ "${{ env.create_on_push }}" = "Yes" ]; then

          #   echo " Current GitHub branch is created with this push, nowhere to revert."

          # else

          #   export current_wd="/__w/${GITHUB_REPOSITORY#*/}/${GITHUB_REPOSITORY#*/}"
          #   echo "$current_wd"
            
          #   export MY_GIT_TOKEN=${{secrets.GITHUB_TOKEN}}
          #   export MY_GIT_USERNAME=${{ github.actor }}
          #   export MY_GIT_EMAIL=${{ github.event.pusher.email }}
            
          #   git config --global user.name "$MY_GIT_USERNAME"
          #   git config --global user.email "$MY_GIT_EMAIL"
          #   git config --global url."https://api:$MY_GIT_TOKEN@github.com/".insteadOf "https://github.com/"
          #   git config --global url."https://ssh:$MY_GIT_TOKEN@github.com/".insteadOf "ssh://git@github.com/"
          #   git config --global url."https://git:$MY_GIT_TOKEN@github.com/".insteadOf "git@github.com:"
            
          #   git clone https://github.com/${GITHUB_REPOSITORY}.git
            
          #   cd ${GITHUB_REPOSITORY#*/}
            
          #   git checkout ${{ github.ref_name }}
            
          #   git reset --hard ${{ github.event.before }}
            
          #   git push -f origin ${{ github.ref_name }}
          
          # fi