Add action to generate pdf diff #1
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| name: Markdown Diff to PDF | |
| on: | |
| pull_request: | |
| types: [opened, synchronize, reopened] | |
| branches: | |
| - main | |
| jobs: | |
| check-markdown: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Checkout repository | |
| uses: actions/checkout@v3 | |
| - name: Install Dependencies | |
| run: | | |
| sudo apt-get update | |
| sudo apt-get install -y pandoc diffpdf | |
| - name: Check for modified Markdown files | |
| id: markdown_check | |
| run: | | |
| MODIFIED_MARKDOWN=$(git diff --name-only ${{ github.event.pull_request.base.sha }} ${{ github.sha }} | grep '\.md' || true) | |
| echo "MODIFIED_MARKDOWN=$MODIFIED_MARKDOWN" >> $GITHUB_ENV | |
| - name: Generate individual PDFs for modified markdown files | |
| if: env.MODIFIED_MARKDOWN != '' | |
| run: | | |
| mkdir -p pdfs | |
| for FILE in $MODIFIED_MARKDOWN; do | |
| # Generate PDF of the current version of the file | |
| pandoc "$FILE" -o "pdfs/$(basename $FILE .md)_current.pdf" | |
| # Generate PDF of the previous version of the file | |
| git show ${{ github.event.pull_request.base.sha }}:"$FILE" > "old_$FILE" | |
| pandoc "old_$FILE" -o "pdfs/$(basename $FILE .md)_previous.pdf" | |
| # Create diff PDF | |
| diffpdf "pdfs/$(basename $FILE .md)_previous.pdf" "pdfs/$(basename $FILE .md)_current.pdf" "pdfs/$(basename $FILE .md)_diff.pdf" | |
| done | |
| - name: Combine PDFs with page breaks | |
| if: env.MODIFIED_MARKDOWN != '' | |
| run: | | |
| pdftk pdfs/*_diff.pdf cat output combined_diffs.pdf | |
| - name: Upload PDFs as artifacts | |
| if: env.MODIFIED_MARKDOWN != '' | |
| uses: actions/upload-artifact@v3 | |
| with: | |
| name: markdown_diffs | |
| path: pdfs/ | |
| - name: Upload combined diff PDF as artifact | |
| if: env.MODIFIED_MARKDOWN != '' | |
| uses: actions/upload-artifact@v3 | |
| with: | |
| name: combined_markdown_diff | |
| path: combined_diffs.pdf | |
| - name: Post PR comment with download links | |
| if: env.MODIFIED_MARKDOWN != '' | |
| run: | | |
| LINKS="" | |
| for FILE in $MODIFIED_MARKDOWN; do | |
| LINKS="${LINKS}- [Download diff for $(basename $FILE)](${{ github.server_url }}/${{ github.repository }}/actions/artifacts/markdown_diffs/$(basename $FILE .md)_diff.pdf)\n" | |
| done | |
| LINKS="${LINKS}\n- [Download combined diff](${{ github.server_url }}/${{ github.repository }}/actions/artifacts/combined_markdown_diff/combined_diffs.pdf)" | |
| curl -X POST -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \ | |
| -H "Content-Type: application/json" \ | |
| -d "{\"body\": \"### Markdown Diff PDFs:\n\n${LINKS}\"}" \ | |
| "${{ github.event.pull_request.url }}/comments" |