build_pr_thesis.yml

name: "Build Thesis Document for PR"
on: 
  pull_request:
    paths:
      - 'report_thesis/**'
  workflow_dispatch:
permissions:
    contents: write
    pull-requests: write
defaults:
    run:
        working-directory: report_thesis
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
jobs:
    build:
        runs-on: ubuntu-latest

        steps:
            - name: Checkout
              uses: actions/checkout@v3
            - uses: actions/cache@v3
              name: Tectonic Cache
              with:
                  path: ~/.cache/tectonic
                  key: ${{ runner.os }}-tectonic-${{ hashFiles('**/*.tex') }}
                  restore-keys: |
                      ${{ runner.os }}-tectonic-
            - uses: wtfjoke/setup-tectonic@v2
              with:
                  github-token: ${{ secrets.github_token }}
            - name: Run Tectonic
              run: tectonic -X build
            - name: Upload PDF
              id: upload_pdf
              uses: actions/upload-artifact@v4
              with:
                  name: thesis-pdf
                  path: report_thesis/build/thesis/thesis.pdf
            - name: Post comment with PDF link
              uses: actions/github-script@v6
              with:
                  script: |
                    const artifactUrl = `https://github.com/${context.repo.owner}/${context.repo.repo}/actions/runs/${context.runId}/artifacts/${{ steps.upload_pdf.outputs.artifact-id }}`;
                    const commitHash = context.sha;
                    const comment = `Built PDF for this PR: [Download PDF](${artifactUrl})\n\nCommit: \`${commitHash}\``;
                    await github.rest.issues.createComment({
                      ...context.repo,
                      issue_number: context.issue.number,
                      body: comment
                    });
                  github-token: ${{ secrets.GITHUB_TOKEN }}