.github/workflows/model-results-comparison.yaml

name: Model Results Comparison

on:
  pull_request_target:
    types: [opened, synchronize, edited]
    paths:
      - 'results/**/*.json'
  workflow_dispatch:
    inputs:
      reference_models:
        description: 'Space-separated list of reference models for comparison'
        required: true
        type: string
        default: 'intfloat/multilingual-e5-large google/gemini-embedding-001'
      pull_request_number:
        description: 'The pull request number to comment on (required if triggered manually)'
        required: false
        type: string

permissions:
  contents: read
  pull-requests: write

jobs:
  compare-results:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      with:
        # IMPORTANT: For pull_request_target, check out the PR branch explicitly
        ref: ${{ github.event.pull_request.head.sha }}
        fetch-depth: 0

    - name: Fetch origin main
      run: git fetch origin main

    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: '3.10'

    - name: Install dependencies
      run: |
        pip install git+https://github.com/embeddings-benchmark/mteb.git tabulate

    - name: Generate model comparison
      env:
        REFERENCE_MODELS: ${{ github.event.inputs.reference_models || 'intfloat/multilingual-e5-large google/gemini-embedding-001' }}
      run: |
        python scripts/create_pr_results_comment.py --reference-models $REFERENCE_MODELS --output model-comparison.md

    - name: Upload comparison report
      uses: actions/upload-artifact@v4
      with:
        name: model-comparison
        path: model-comparison.md

    - name: Determine PR Number
      id: pr_info
      run: |
        if [ "${{ github.event_name }}" == "pull_request_target" ]; then
          echo "pr_number=${{ github.event.number }}" >> $GITHUB_OUTPUT
        elif [ "${{ github.event_name }}" == "workflow_dispatch" ] && [ -n "${{ github.event.inputs.pull_request_number }}" ]; then
          echo "pr_number=${{ github.event.inputs.pull_request_number }}" >> $GITHUB_OUTPUT
        else
          echo "pr_number=" >> $GITHUB_OUTPUT
        fi

    - name: Post PR comment
      if: steps.pr_info.outputs.pr_number != ''
      env:
        GITHUB_TOKEN: ${{ github.token }}
      run: gh pr comment ${{ steps.pr_info.outputs.pr_number }} --body-file model-comparison.md --create-if-none --edit-last