Cargo Graphmod

A cargo subcommand for building Graphviz DOT files of dependency graphs between the modules of a package.

Prerequisites

• You need to install Graphviz.

Installing

cargo-graphmod can be installed with cargo install:

cargo install cargo-graphmod

Usage

cd my_rust_package
cargo graphmod | tred | dot -Tsvg > modules.svg

• Assumptions:

  • You should run the command from the root of your project (just above src).
  • By default, the package name (as defined in Cargo.toml) is supposed to be the directory name. Otherwise pass it as argument: cargo graphmod a_different_name.

• Use tred if you want the transitive reduction of the graph.

• You can export to a lot of different formats.

Known limitations

• Detects only dependencies introduced by the use keyword.

• Detects only dependencies before the first #[cfg(test)] (in order to eliminate the dependencies from unit tests).

• Works best when there is a bijection between modules and files / directories.

License

cargo-graphmod is released under the terms of the GPLv3 license.

Cargo Graphmod's graph

Other example