cargo-whatfeatures
Table of Contents
Install
with cargo installed, simply do:
cargo install -f cargo-whatfeatures
Note -f will replace the previous installed version
Notes on color
if the NO_COLOR env-var has a value, all color will be disabled.
Usage
cargo-whatfeatures 0.8.0
the `whatfeatures` command
USAGE:
cargo whatfeatures [FLAGS] [OPTIONS] <crate>
FLAGS:
-h, --help
Prints help information
-V, --version
Displays the program name and version
-d, --deps
Display dependencies for the crate
This will list the required dependencies
-n, --no-features
Disable listing the features for the crate
-l, --list
List all versions for the crate.
When using the `-y` option, yanked crates can be filtered.
-s, --short
Display only the name and latest version, such as foo/0.1.2
-v, --verbose
When this is enabled, all 'implied' features will be listed.
Also, optional dependencies will be listed. Optional deps are technically features.
-o, --offline
Don't connect to the internet, limits the availities of this.
If the crate is in either cargo's local registry, or whatfeatures' cache
then this will work normally, otherwise it'll give you a nice error.
--print-cache-dir
Prints out the path to the cache directory
--purge
Purges the local cache. The command will automatically clean up after
itself if it sees the crate in the cargo local registry. If its not
in the cargo registry, it'll download the crate from crates.io and place
it in its cache. This flag causes that cache to become invalidated.
The cache is located at these locations:
* Linux: $XDG_CACHE_HOME/museun/whatfeatures
* Windows: %LOCALAPPDATA/museun/whatfeatures
* macOS: $HOME/Library/Caches/museun/whatfeatures
OPTIONS:
-c, --color [always, auto, never]
Attempts to use colors when printing as text [default: auto]
*NOTE* When NO_COLOR is set to any value, all colors will be disabled
-p, --pkgid <semver>
A specific version to lookup. e.g. 0.7.1
If this is not provided, then the latest crate is used.
--manifest-path <PATH>
A path to the Cargo.toml you want to read, locally.
Use this to read from a local crate, rather than a remote one.
-y, --show-yanked <exclude, include, only>
Shows any yanked versions when using `--list`. [default: exclude].
When 'exclude' is provided, only active releases versions will be listed
When 'include' is provided, the listing will include yanked versions along with active releases.
When 'only' is provided, only yanked versions will be listed
ARGS:
<crate> The name of the remote crate to retrieve information for.
Using this means you want a 'remote' crate.
This is exclusive with -p, --pkgid and with --manifest-path.
This allows you to lookup a specific crate, at a specific version and get its default and optional features. It also allows listing the deps for the specified crate.
You can also use this on local crates.
Examples:
Features
list the features for the latest version
cargo whatfeatures serde
or
cargo whatfeatures -p serde
serde/1.0.110
features
├─ default
├─ alloc
├─ derive
├─ rc
├─ std
└─ unstable
list the features and optional deps for the latest version
cargo whatfeatures serde -v
Note this also list 'implied features' (ones that are enabled by other features).
serde/1.0.111
features
├─ default
│ └─ std
├─ alloc
├─ derive
│ └─ serde_derive
├─ rc
├─ std
└─ unstable
optional dependencies
└─ serde_derive = = 1.0.111
list the features for a specific version
cargo whatfeatures -p twitchchat:0.10.2
twitchchat/0.10.2
features
├─ default
│ ├─ async
│ └─ tokio_native_tls
├─ async
├─ tokio_native_tls
└─ tokio_rustls
list the features for a local crate
cargo whatfeatures --manifest-path .
twitchchat/0.10.3
features
├─ default
│ ├─ async
│ └─ tokio_native_tls
├─ async
├─ tokio_native_tls
└─ tokio_rustls
Simple listing
get the latest version
cargo whatfeatures --short lock-api
lock_api/0.3.4
list all name and version pairs
cargo whatfeatures --list lock-api
lock-api/0.3.4
lock-api/0.3.3
lock-api/0.3.2
lock-api/0.3.1
lock-api/0.2.0
lock-api/0.1.5
lock-api/0.1.4
lock-api/0.1.3
lock-api/0.1.1
lock-api/0.1.0
list all name and version pairs, including yanked versions
cargo whatfeatures --list --show-yanked include lock-api
lock-api/0.3.4
lock-api/0.3.3
lock-api/0.3.2
lock-api/0.3.1
yanked: lock-api/0.3.0
lock-api/0.2.0
lock-api/0.1.5
lock-api/0.1.4
lock-api/0.1.3
yanked: lock-api/0.1.2
lock-api/0.1.1
lock-api/0.1.0
list all name and version pairs, only showing yanked versions
cargo whatfeatures --list --show-yanked only lock-api
yanked: lock-api/0.3.0
yanked: lock-api/0.1.2
Dependencies
list the deps for the latest version
Note use --no-features (-n) to not list the features
cargo whatfeatures curl --deps
curl/0.4.29
features
├─ default
│ └─ ssl
├─ force-system-lib-on-osx
├─ http2
├─ mesalink
├─ protocol-ftp
├─ spnego
├─ ssl
├─ static-curl
└─ static-ssl
required dependencies
├─ normal
│ ├─ for cfg(target_env = "msvc")
│ │ ├─ schannel = ^0.1.13
│ │ └─ winapi = ^0.3 (has enabled features)
│ ├─ curl-sys = ^0.4.31
│ ├─ libc = ^0.2.42
│ └─ socket2 = ^0.3.7
├─ development
│ ├─ mio = ^0.6
│ └─ mio-extras = ^2.0.3
└─ no build dependencies
optional dependencies
└─ for cfg(all(unix, not(target_os = "macos")))
├─ openssl-probe = ^0.1.2
└─ openssl-sys = ^0.9.43
list the deps for a specific version
note use -f false to not list the features
cargo whatfeatures -p curl:0.3.0 --deps
curl/0.3.0
no features
required dependencies
├─ normal
│ ├─ for cfg(all(unix, not(target_os = "macos")))
│ │ └─ openssl-sys = ^0.7.0
│ ├─ curl-sys = ^0.2.0
│ └─ libc = ^0.2
├─ development
│ └─ mio = ^0.5
└─ no build dependencies
no optional dependencies
list the deps for a local crate
cargo whatfeatures --manifest-path . -d -n
twitchchat/0.10.3
required dependencies
├─ normal
│ ├─ log = ^0.4
│ ├─ parking_lot = ^0.10
│ └─ static_assertions = ^1.1
├─ development
│ ├─ doc-comment = ^0.3.3
│ ├─ matches = ^0.1.8
│ ├─ tokio = ^0.2.13 (has enabled features)
│ └─ tokio-test = ^0.2.0
└─ no build dependencies
optional dependencies
├─ futures = ^0.3
├─ native-tls = ^0.2
├─ serde = ^1.0 (has enabled features)
├─ tokio = ^0.2 (has enabled features)
├─ tokio-rustls = ^0.13
├─ tokio-tls = ^0.3
└─ webpki-roots = ^0.19
License
cargo-whatfeatures is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0).
See LICENSE-APACHE and LICENSE-MIT for details.