merge.yml

name: Run Merge Script

on:
  workflow_dispatch:
  # run after layout verification
  workflow_run:
    workflows: ["Run Layout Verification"]
    types:
      - completed

jobs:
  merge:
    runs-on: ubuntu-latest

    steps:
      - name: checkout repo content
        uses: actions/checkout@v2

        # can also specify python version if needed
      - name: setup python
        uses: actions/setup-python@v5
        with:
          python-version: '3.11' 
          cache: 'pip'

      - name: install python packages
        run: |
          #python -m pip install --upgrade pip
          pip install klayout SiEPIC pandas
          # pip install siepic_ebeam_pdk

      - name: run merge script
        run: |

          python merge/EBeam_merge.py

      - name: move merge output files to new folder
        run: |
          #output_files="EBeam.gds EBeam.oas EBeam.txt EBeam.coords"
          output_files="EBeam_Si_Heaters.oas EBeam_Si_Heaters.txt"

          IFS=' '

          mkdir -p merge_output

          for file in $output_files; do
            cp "merge/$file" merge_output/
          done

      - name: upload artifact
        uses: actions/upload-artifact@v4
        id: artifact-upload
        with:
          name: merge-files
          path: merge_output/
      
      - name: get artifact url
        run: |
          IFS='/' read -ra REPO <<< "$GITHUB_REPOSITORY"
          OWNER="${REPO[0]}"
          REPO_NAME="${REPO[1]}"
          echo "Owner: $OWNER"
          echo "Repository: $REPO_NAME"
          
          RUN_ID=${{ github.run_id }}
          ARTIFACT_ID=${{ steps.artifact-upload.outputs.artifact-id }}
          ARTIFACT_URL="https://github.com/$OWNER/$REPO_NAME/actions/runs/$RUN_ID/artifacts/$ARTIFACT_ID"
          echo "Artifact URL: $ARTIFACT_URL"
          
          echo "ARTIFACT_URL=$ARTIFACT_URL" >> $GITHUB_ENV
          echo "OWNER=$OWNER" >> $GITHUB_ENV
          
      - name: update url in runner README 
        run: |
          # pull, in case there were changes since the start of this action
          git pull
          
          start_delim="<!-- start-link -->"
          end_delim="<!-- end-link -->"
          
          # remove current URL
          sed -i "/$start_delim/,/$end_delim/d" README.md
          
          # add new URL
          printf "$start_delim\n$ARTIFACT_URL\n$end_delim\n" >> README.md
          
      # merge script always runs on any PR, this ensures link is only updated after a PR is merged into SiEPIC
      - name: commit and push changes to README if we are in SiEPIC repo
        run: |
          git diff
          git config --local user.email "${{ github.actor }}@users.noreply.github.com"
          git config --local user.name "${{ github.actor }}"
          git add README.md
          git commit -m "update README with new artifact url $ARTIFACT_URL"
          git push 
        if: ${{ env.OWNER == 'SiEPIC'}}

      - name: Create comment
        uses: actions/github-script@v6
        with:
          script: |
            const ARTIFACT_URL = process.env.ARTIFACT_URL;
            const commentBody = `
            ### Draft merge:

            Thank you for submitting your design.  
          
            Please download the merged layout and confirm (by responding in a Comment below) that your layout is correctly merged:

            ${ARTIFACT_URL}

            Thank you!
            `;

            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: commentBody
            });
        if: ${{ github.event.pull_request_target.opened || github.event.pull_request_target.synchronize || github.event.pull_request_target.reopened }}

        # github.event.pull_request.merged == true