Export Drawio to PDF files

gistfile1.txt

#!/bin/zsh

# Ensure the previous_exports directory exists
mkdir -p previous_exports

for drawioFile in *.drawio.svg; do
  # Extracting the "content" attribute value
  content=$(sed -n 's/.*content="\([^"]*\)".*/\1/p' "$drawioFile")
  
  # Calculating the MD5 hash of the "content" and taking the first 5 characters
  hash=$(echo -n "$content" | md5 | cut -c 1-5)
  
  baseName="${drawioFile%.drawio.svg}"
  outputName="${baseName}_$hash.pdf"
  outputFilePath="./$outputName"
  
  # Ensure globbing does not split filenames with spaces
  OLDIFS=$IFS
  IFS=$'\n'
  
  # Check if the PDF with the current hash already exists to avoid unnecessary moves
  if [[ -f "$outputFilePath" ]]; then
    echo "PDF $outputName already exists with the same content. Skipping export and any moves."
    continue
  fi
  
  # Find any existing PDFs that start with the base name but aren't the current hash version
  existingPdfs=($(ls "${baseName}"_*.pdf 2> /dev/null))
  for existingPdf in "${existingPdfs[@]}"; do
    if [[ "$existingPdf" != "$outputFilePath" ]]; then
      # Move the existing PDF with a different hash to the previous_exports directory
      echo "Moving existing PDF $existingPdf to previous_exports directory."
      mv "$existingPdf" "./previous_exports/"
    fi
  done
  
  # Reset IFS to its original value
  IFS=$OLDIFS
  
  # Export the new PDF
  /Applications/draw.io.app/Contents/MacOS/draw.io --export --format pdf --output "$outputName" "$drawioFile"
  echo "Exported new PDF with hash $hash: $outputName"
done