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@v4

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

      - 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.oas EBeam.txt"

          IFS=' '

          mkdir -p merge_output

          for file in $output_files; do
            cp "/home/runner/work/openEBL-2024-02/openEBL-2024-02/merge/$file" merge_output/
          done

      - name: upload merge artifact
        uses: actions/upload-artifact@v4
        id: artifact-upload
        with:
          name: merge-files
          path: merge_output/
      
      - name: add vars needed for merge artifact url to a txt file
        run: |
          IFS='/' read -ra REPO <<< "$GITHUB_REPOSITORY"
          OWNER="${REPO[0]}"
          REPO_NAME="${REPO[1]}"
          RUN_ID=${{ github.run_id }}
          ARTIFACT_ID=${{ steps.artifact-upload.outputs.artifact-id }}

          # add vars to txt file
          echo "$ARTIFACT_ID" > url_info.txt
          echo "$RUN_ID" >> url_info.txt
          echo "$OWNER" >> url_info.txt
          echo "$REPO_NAME" >> url_info.txt

      - name: upload txt file as an artifact
        uses: actions/upload-artifact@v4
        with:
          name: url-info
          path: url_info.txt
        
  # seperate job needed so we can check out and change code from gh-pages branch
  update-url:
    runs-on: ubuntu-latest
  
    needs: merge
  
    steps:
      - name: checkout repo content
        uses: actions/checkout@v2
        with:
          ref: gh-pages
        
      - name: download url-info artifact
        uses: actions/download-artifact@v4
        with:
          name: url-info
          path: .
          
      - name: get vars from url_info.txt file
        run: |
          ARTIFACT_ID=$(head -1 url_info.txt)
          RUN_ID=$(sed -n '2p' url_info.txt)
          OWNER=$(sed -n '3p' url_info.txt)
          REPO_NAME=$(sed -n '4p' url_info.txt)

          echo "ARTIFACT_ID=$ARTIFACT_ID" >> $GITHUB_ENV
          echo "RUN_ID=$RUN_ID" >> $GITHUB_ENV
          echo "OWNER=$OWNER" >> $GITHUB_ENV
          echo "REPO_NAME=$REPO_NAME" >> $GITHUB_ENV

      - name: delete url-info artifact
        uses: geekyeggo/delete-artifact@v4
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          name: url-info
          
      - name: update index.html with new merge artifact link
        run: |
          echo "New artifact URL: https://github.com/$OWNER/$REPO_NAME/actions/runs/$RUN_ID/artifacts/$ARTIFACT_ID"
          sed -i 's|URL=https://github.com/'"$OWNER"'/'"$REPO_NAME"'/actions/runs/.*|URL=https://github.com/'"$OWNER"'/'"$REPO_NAME"'/actions/runs/'"$RUN_ID"'/artifacts/'"$ARTIFACT_ID"'">|' index.html
          sed -i 's|href="https://github.com/'"$OWNER"'/'"$REPO_NAME"'/actions/runs/.*|href="https://github.com/'"$OWNER"'/'"$REPO_NAME"'/actions/runs/'"$RUN_ID"'/artifacts/'"$ARTIFACT_ID"'">|' index.html
  
      # merge script always runs on any PR, the if statement ensures link is only updated after a PR is merged into SiEPIC
      - name: push changes to gh-pages branch
        run: |
          git config user.name "${{ github.actor }}"
          git config user.email "${{ github.actor }}@users.noreply.github.com"
          git add index.html
          git commit -m "Update index.html to redirect to new merge artifact url"
          git push 
        if: ${{ github.repository_owner == 'SiEPIC'}}