Whippet - like husky, but leaner

Use make targets to execute git hooks. Inspired by husky.

Rationale

When working on Node.js projects, I liked the simplicity of setting up git hooks using husky. Since I failed to find a similar tool in python ecosystem, I decided to write one myself.

As far as I know, there is no standard equivalent to npm scripts in python, so I chose to rely on make which seems to be a popular way to organise project-related tasks in the python world.

Note

Development follows my needs at work, which means whippet might be a bit light on features. Feel free to make a suggestion if you're missing something.

Installation

Whippet is available as a PyPI package. Use a tool that can install packages from it, like for instance pip.

$ pip install whippet

Usage

Install hooks

Once whippet is installed, it is used by invoking whippet executable in the directory where you wish to install hooks. Whippet checks if that directory (or its ancestor) contains a .git directory and offers to install hooks into it.

$ cd demo
$ whippet
whippet - Are you sure you want to install hooks in /home/bpp/demo/.git? [Y/n] y

Setup target

Whippet hooks are scripts that check for the existence of make targets with the same name as git hooks. If such a target exists, the script executes it. Let's take pre-commit as an example. Once whippet hooks are installed, we simply add pre-commit target to the Makefile like so:

pre-commit:
    @echo "Whippet says: Woof!"

Then the target will be executed on pre-commit:

$ git commit -m 'Testing whippet'
pre-commit
Whippet says: Woof!
[master d654d33] Bar
1 file changed, 12 insertions(+)
create mode 100644 Makefile
$

Uninstall hooks

If you had enough and want to remove whippet git hooks invoke whippet and pass uninstall command

$ whippet uninstall
whippet - Are you sure you want to uninstall hooks in /home/bpp/demo/.git? [Y/n] y

Non-interactive

To avoid the prompt pass the --assume-yes argument to whippet. This can be useful when adding whippet to initialisation target in Makefile. Example:

init:
    pip install -r requirements.txt
    whippet --assume-yes