Generate pretty SVG of haskell project dependencies

generate-dependency-graph.sh

#!/usr/bin/env nix-shell
#!nix-shell -i bash -p haskellPackages.cabal-plan graphviz

dot="$(cabal-plan dot --tred)"

echo "$dot" > dep_filtered.dot

targets="$(echo "$dot" | grep  "color=black"  | cut -d ' ' -f 1 | sort | uniq)"

for pkg in "$targets"; do
    # Remove surrounding quotes if any.
    pkg_clean="$(echo "$pkg" | tr -d '"')"
    # Remove lines containing the package name from the working .dot file.
    grep -v "$pkg_clean" dep_filtered.dot > /tmp/temp.dot && mv /tmp/temp.dot dep_filtered.dot
done

cat dep_filtered.dot | dot -Tsvg > deps.svg
rm dep_filtered.dot