Generate a graph of the module dependencies in the "dot" format, suitable as input to the graphviz tools.
Similar to ghc-pkg dot, but on modules instead of packages.
See the wiki for more documentation and examples.
$ cabal install graphmod
$ ~/.cabal/bin/graphmod --help
$ ~/.cabal/bin/graphmod | tred | dot -Tpdf > modules.pdf
$ stack build --copy-compiler-tool graphmod
$ stack exec graphmod -- --help
$ stack exec graphmod | tred | dot -Tpdf > modules.pdf