git

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git hooks

Git provides hooks to run custom code when specific git actions occur. One such action would be a commit, for which git provides the following hooks:

Hook	When	Common use cases
pre-commit	before commit process is started	linting, style checks, etc.
prepare-commit-msg	before commit message editor is opened	provide default commit message
commit-msg	after commit message is entered	validate commit message
post-commit	after commit process is completed	send notifications

These hooks are basically just scripts inside the .git/hooks directory that are called by git. However, there is also a framework called pre-commit, that allows for easy reuse of existing git hooks.