Table of Contents
Cargo subcommand for building dependency graphs of Rust projects.
This project is an improvement on the unmaintained and buggy cargo-graph.
cargo-deps can be installed with
cargo install cargo-deps
First, make sure you have graphviz installed.
cd into the Rust project directory you want to graph and run:
cargo deps | dot -Tpng > graph.png
graph.png will contain the graph (you can change its name, of course!)
> may not work if the output file already exists, in which case you can try
The default behavior is to exclude optional, dev, and build dependencies. To see all dependencies, pass
cargo deps --all-deps | dot -Tpng > graph.png
Dependencies are colored depending on their kind:
- Black: regular dependency
- Purple: build dependency
- Blue: dev dependency
- Red: optional dependency
A dependency can be of more than one kind. In such cases, it is colored with the following priority:
Regular -> Build -> Dev -> Optional
For example, if a dependency is both a build and a dev dependency, then it will be colored as a build dependency. If, however, you pass the
--dev-deps option instead of
--all-deps, the dependency will be colored as a dev dependency (as the build-dependency graph will not be shown).
Some Rust projects have really big dependency trees and maybe you just want to display certain dependencies, like the ones in the same workspace. Fortunately,
cargo-deps provides the
--filter option for this use case. Unfortunately, you have to explicitly list all the dependencies you want to keep, and
cargo-deps doesn't detect workspaces just yet.
It can be useful to exclude certain crates from the final graph. This can be achieved with the
--exclude flag taking the undesired crates as arguments.
In order to constrain the size of graphs and make them cleaner, it is possible to limit the output to dependencies within a certain depth using the
Filtering transitive edges
For large dependency graphs, the
--no-transitive-deps option can be used to filter out edges that are "covered" by a transitive dependency, which can make visual parsing a little easier by omitting some redundant edges. For example, if crate
A depends directly on crate
C, and crate
B depends directly on crate
C, this option would omit the edge from
C. To illustrate, compare the default dependency graph for Tokei, generated by
cargo deps, to the graph with transitive edges removed, generated by
cargo deps --no-transitive-deps.
You can visually group a set of dependencies by using the
This was generated using the command:
cargo deps -I --all-deps --no-regular-deps | dot -Tpng > tokei.png
This was generated using the following whopper of a command to display only MaidSafe dependencies:
cargo deps --all-deps --include-orphans --subgraph safe_app safe_app_jni safe_authenticator safe_authenticator_jni safe_core --subgraph-name "SAFE Client Libs" --filter accumulator config_file_handler crust ffi_utils fake_clock lru_time_cache maidsafe_utilities parsec resource_proof routing rust_sodium safe_app safe_app_jni safe_authenticator safe_authenticator_jni safe_bindgen safe_core safe_crypto safe_vault secure_serialisation self_encryption system_uri tokio_utp --manifest-path safe_app/Cargo.toml | dot -Tpng -Nfontname=Iosevka -Gfontname=Iosevka > safe-client-libs.png
cargo deps -h to see all available options.
cargo-deps is released under the terms of the MIT license. See the LICENSE-MIT file for the details.