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
$

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:
    poetry install
    whippet --assume-yes