What scripts/calls do you usually include in your Git pre-commit hooks?

Question

I want to know what are the best practices in setting up your pre-commit hooks. What the other developers using Git include in their pre-commit scripts.

In my case, assuming I'm working on a PHP project and having OCD tendencies sometimes - my pre-commit hook includes:

• PHP syntax checker - commit will fail if there are syntax errors in the committed PHP files.
• pngout - if the committed file is a png image. pngout will automatically optimize/compress that file.
• JavaScript syntax checker (in my to-do list)

Answer 1

The usual policy to check for git pre-commit hook is about:

• comment message (formatting, reference to a work item of sorts)
• number of files (too many means the commit isn't a coherent "unit", but one large set of files)
• presence of specific files (like in this hook)