generate-pdfs

#!/usr/bin/env bash

### IMPORTANT!!!
### Keep this file in sync with action.yml

# Ignore failures due to grep when piped.
# https://stackoverflow.com/a/11231970/5868796
set +o pipefail

# These are magic workflow commands for GitHub Actions
# Docs: https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#grouping-log-lines
echo "::group::Creating PDFs"
echo "List of files:"
grep -s -l "window\.PrimerSpecConfig" _site/**/*.html _site/*.html | cat
echo "Generating PDFs..."
grep -s -l "window\.PrimerSpecConfig" _site/**/*.html _site/*.html | while read -r file
do
  relativePath=${file#_site/}
  pdfFile="_site/assets/primer-spec-pdf/${relativePath%.html}.pdf"
  pdfFileDir=${pdfFile%/*}
  echo "Source: $file"
  echo "Dest: $pdfFile"
  echo "In directory: $pdfFileDir"
  echo ""
  mkdir -p $pdfFileDir
  echo "Writing to $pdfFile..."
  chrome --no-sandbox --headless --disable-gpu --disable-software-rasterizer --run-all-compositor-stages-before-draw --print-to-pdf-no-header --print-to-pdf="$pdfFile" $file
  # Chrome appears to provide r/w permissions only to the `user/owner` group,
  # so GitHub Pages is unable to read the file.
  # HUGE thanks to Arthur from GitHub Support for figuring this out! ❤️
  echo "Making the PDF readable to GitHub Pages..."
  chmod a+r $pdfFile
  # Update the corresponding HTML file so Primer Spec knows that a PDF is
  # available.
  echo "Updating the corresponding HTML file to include PDF path: ${pdfFile#_site/}"
  sed -i "s=pdfPath:.*// @managed by build-primer-spec-action=pdfPath: '${pdfFile#_site/}', // @managed by build-primer-spec-action=" $file
  echo "Done."
done
echo "::endgroup::"