Script to batch-convert Dot files (e.g. created by Scitools Understand) to drawio

convert_dots_to_drawio.sh

#!/usr/bin/env bash
set -euo pipefail

DOT_DIR="${DOT_DIR:-./ControlFlow_Reports/flowcharts_dot}"
OUTPUT="${OUTPUT:-./ControlFlow_Reports/drawio}"

# Ensure these are exported or set before running
: "${DOT_DIR:?Need to set DOT_DIR}"
: "${OUTPUT:?Need to set OUTPUT}"

# Create output directory if not existing
mkdir -p "$OUTPUT"

# Loop through all .dot files
for src in "$DOT_DIR"/*.dot; do
  # Skip if no .dot files present
  [[ -e "$src" ]] || continue

  # Derive basename and destination path
  base=$(basename "$src" .dot)
  dest="$OUTPUT/${base}.xml"

  echo "Converting '$src' → '$dest'…"
  graphviz2drawio "$src" -o "$dest"

  echo "   ✔ Generated '$dest'"
done

echo "All done!"