update-latex-math.yaml

# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
# Source version of this workflow lives in https://github.com/slds-lmu/lecture_service
# Please only update by copying from there to avoid divergences
on:
  workflow_dispatch:
  push:
    branches: [main, master]

name: update-latex-math

jobs:
  update-latex-math:
    runs-on: ubuntu-latest
    env:
      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - name: Checkout repo
        uses: actions/checkout@v4
        with:
          # 0 indicates all history for all branches and tags, 1 is shallow (and default)
          fetch-depth: 1
          # Don't show progress bar, very verbose for large repos
          show-progress: false

      # Uncomment / move to get a tmux ssh session for interactive debugging
      # - name: Setup tmate session
      #  uses: mxschmitt/action-tmate@v3

      # 1. Delete latex-math contents in the current lecture to make sure that outdated files are removed
      #     (example: there was an iml.tex that was superseded by ml-interpretable.tex)
      # 2. Download latex-math from the canonical repo into ./latex-math
      # 3. Delete latex-math.pdf to avoid dragging large binary blobs through the git history
      - name: Get latex-math
        run: |
          rm -rf latex-math/*
          curl -sL https://api.github.com/repos/slds-lmu/latex-math/tarball/master | tar -xz --directory=latex-math/ --strip-components=1
          rm latex-math/latex-math.pdf

      # Use this pull request action to auto-generate a PR with the changes
      # See https://github.com/peter-evans/create-pull-request#action-inputs
      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v5
        with:
          title: "[Automated] Update latex-math"
          commit-message: "Update latex-math"
          body: |
              Automated changes by `update-latex-math.yaml` workflow.
              Compare and merge to keep latex-math up to date with [latex-math](slds-lmu/latex-math).
              This branch will automatically be updated on subsequent commits.
          branch: update-latex-math
          add-paths: latex-math