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https://github.com/rhysd/cargo-husky

Setup Git hooks automatically for cargo projects with :dog:
https://github.com/rhysd/cargo-husky

cargo development-tools git hook rust

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Setup Git hooks automatically for cargo projects with :dog:

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README 

        
Husky for Cargo :dog:

=====================

[![Crates.io][crates-io badge]][cargo-husky]

[![Build Status on Linux/macOS][travis-ci badge]][travis-ci]

[![Build status on Windows][appveyor badge]][appveyor]



[cargo-husky][] is a crate for Rust project managed by [cargo][]. In short, cargo-husky is a Rust

version of [husky][].



cargo-husky is a development tool to set Git hooks automatically on `cargo test`. By hooking `pre-push`

and running `cargo test` automatically, it prevents broken codes from being pushed to a remote

repository.



## Usage



Please add `cargo-husky` crate to `[dev-dependencies]` section of your project's `Cargo.toml`.



```toml

[dev-dependencies]

cargo-husky = "1"

```



Then run tests in your project directory.



```

$ cargo test

```



Check Git hook was generated at `.git/hooks/pre-push`.

cargo-husky generates a hook script which runs `cargo test` by default.



e.g.



```bash

#!/bin/sh

#

# This hook was set by cargo-husky v1.0.0: https://github.com/rhysd/cargo-husky#readme

# Generated by script /path/to/cargo-husky/build.rs

# Output at /path/to/target/debug/build/cargo-husky-xxxxxx/out

#



set -e



echo '+cargo test'

cargo test

```



Note: cargo-husky does nothing on `cargo test` when

- hook script was already generated by the same version of cargo-husky

- another hook script put by someone else is already there



To uninstall cargo-husky, please remove `cargo-husky` from your `[dev-dependencies]` and remove

hook scripts from `.git/hooks`.



[Japanese blogpost](https://rhysd.hatenablog.com/entry/2018/10/08/205041)



## Customize behavior



Behavior of cargo-husky can be customized by feature flags of `cargo-husky` package.

You can specify them in `[dev-dependencies.cargo-husky]` section of `Cargo.toml` instead of adding

`cargo-husky` to `[dev-dependencies]` section.



e.g.



```toml

[dev-dependencies.cargo-husky]

version = "1"

default-features = false # Disable features which are enabled by default

features = ["precommit-hook", "run-cargo-test", "run-cargo-clippy"]

```



This configuration generates `.git/hooks/pre-commit` script which runs `cargo test` and `cargo clippy`.



All features are follows:



| Feature            | Description                                                         | Default  |

|--------------------|---------------------------------------------------------------------|----------|

| `run-for-all`      | Add `--all` option to command to run it for all crates in workspace | Enabled  |

| `prepush-hook`     | Generate `pre-push` hook script                                     | Enabled  |

| `precommit-hook`   | Generate `pre-commit` hook script                                   | Disabled |

| `postmerge-hook`   | Generate `post-merge` hook script                                   | Disabled |

| `run-cargo-test`   | Run `cargo test` in hook scripts                                    | Enabled  |

| `run-cargo-check`  | Run `cargo check` in hook scripts                                   | Disabled |

| `run-cargo-clippy` | Run `cargo clippy -- -D warnings` in hook scripts                   | Disabled |

| `run-cargo-fmt`    | Run `cargo fmt -- --check` in hook scripts                          | Disabled |

| `user-hooks`       | See below section                                                   | Disabled |



## User Hooks



If generated hooks by `run-cargo-test` or `run-cargo-clippy` features are not sufficient for you,

you can create your own hook scripts and tell cargo-husky to put them into `.git/hooks` directory.



1. Create `.cargo-husky/hooks` directory at the same directory where `.git` directory is put.

2. Create hook files such as `pre-push`, `pre-commit`, ... as you like.

3. Give an executable permission to the files (on \*nix OS).

4. Write `features = ["user-hooks"]` to `[dev-dependencies.cargo-husky]` section of your `Cargo.toml`.

5. Check whether it works by removing an existing `target` directory and run `cargo test`.



e.g.



```

your-repository/

├── .git

└── .cargo-husky

    └── hooks

        ├── post-merge

        └── pre-commit

```



```toml

[dev-dependencies.cargo-husky]

version = "1"

default-features = false

features = ["user-hooks"]

```



cargo-husky inserts an information header to copied hook files in `.git/hooks/` in order to detect

self version update.



Note that, when `user-hooks` feature is enabled, other all features are disabled. You need to prepare

all hooks in `.cargo-husky/hooks` directory.



## Ignore Installing Hooks



When you don't want to install hooks for some reason, please set `$CARGO_HUSKY_DONT_INSTALL_HOOKS`

environment variable.



```

CARGO_HUSKY_DONT_INSTALL_HOOKS=true cargo test

```



## How It Works



[husky][] utilizes npm's hook scripts, but cargo does not provide such hooks.

Instead, cargo-husky sets Git hook automatically on running tests by [cargo's build script feature][build scripts].



Build scripts are intended to be used for building third-party non-Rust code such as C libraries.

They are automatically run on compiling crates.



If `cargo-husky` crate is added to `dev-dependencies` section, it is compiled at running tests.

At the timing, [build script](./build.rs) is run and sets Git hook automatically.

The build script find the `.git` directory to put hooks based on `$OUT_DIR` environment variable

which is automatically set by `cargo`.



cargo-husky puts Git hook file only once for the same version. When it is updated to a new version,

it overwrites the existing hook by detecting itself was updated.



cargo-husky is developed on macOS and tested on Linux/macOS/Windows with 'stable' channel Rust toolchain.



## License



[MIT](./LICENSE.txt)



[cargo-husky]: https://crates.io/crates/cargo-husky

[cargo]: https://github.com/rust-lang/cargo

[husky]: https://github.com/typicode/husky

[build scripts]: https://doc.rust-lang.org/cargo/reference/build-scripts.html

[travis-ci badge]: https://travis-ci.org/rhysd/cargo-husky.svg?branch=master

[travis-ci]: https://travis-ci.org/rhysd/cargo-husky

[appveyor badge]: https://ci.appveyor.com/api/projects/status/whby8hq44tf9bob4/branch/master?svg=true

[appveyor]: https://ci.appveyor.com/project/rhysd/cargo-husky/branch/master

[crates-io badge]: https://img.shields.io/crates/v/cargo-husky.svg