cargo-real-deps
THIS FORK HAS BEEN DEPRECATED IN FAVOUR OF
cargo-deps-list.It actually works as desired, and doesn't take years to compile. It also better suits my use case (gives a total count of dependencies, and doesn't show features enabled on each dependency)
About
Cargo subcommand to check which crates are built when building for the host machine with the selected features
The Cargo.lock file indicates the entire list of dependencies, but some of those might not be built depending on the platform or the set of features you have chosen.
This tool will give you the actual list of dependencies, their version and the activated features depending on how you build it
As an example, here is the dependency list generated for a normal build of nom:
$ cargo real-deps nom/Cargo.toml
cfg-if 0.1.9 {}
semver-parser 0.7.0 {}
semver 0.9.0 {"default"}
rustc_version 0.2.3 {}
ryu 1.0.0 {}
void 1.0.2 {}
unreachable 1.0.0 {}
stackvector 1.0.6 {"std", "default"}
static_assertions 0.3.4 {}
lexical-core 0.4.3 {"correct", "ryu", "stackvector", "table", "std", "default"}
memchr 2.2.1 {"use_std"}
version_check 0.1.5 {}
nom 5.0.1 {"default", "std", "lexical", "lexical-core", "alloc"}
But if you wanted to see which dependencies are built when in "no std":
$ cargo real-deps nom/Cargo.toml --no-default-features
memchr 2.2.1 {}
version_check 0.1.5 {}
nom 5.0.1 {}
You can also specify exactly the features you want with the option --features=feature1,feature2,etc
Installing
cargo-real-deps can be installed with cargo install:
cargo install cargo-real-deps
Usage
cargo-real-deps
Cargo subcommand to check which crates are built depending on features
USAGE:
cargo real-deps [FLAGS] [OPTIONS] [path]
FLAGS:
--all-features Activate all features
-c, --count Prints only the total number of dependencies
-h, --help Prints help information
--no-default-features Deactivate default features
-V, --version Prints version information
OPTIONS:
--features <features> Activates some features
ARGS:
<path> Project directory, or path to Cargo.toml