Command-Line Conditional Pre-Clamp for GIT: Is this Possible?

Question

We have a good pre-commit hook for GIT, as well as a good commit-msg. The pre-commit hook performs syntax checking, and commit-msg does some other business logic. Everything works well.

However, I would like to add a coding standard check on the pre-hook. In fact, this has already been added. However, I do not want to strictly monitor that our developers comply with the coding standards. By default, I would like to check the code for the standards, but if they would like to pass a check on the coding standards, I would like them to pass by adding a parameter to fixing time.

Is it possible to capture / interpret any command line parameter that was set during commit on git at the capture level before commit in order to skip the standard encoding check in the pre-commit hook (optional?)

Or is this only possible when intercepting a message before committing by analyzing the commit message for a specific substring?

Share your recommendations on how (and where) to create conditional code with a controlled command line using the git pre-commit hook (or other git hooks).

Answer 1

An easy way to do this would be to simply use an environment variable:

STANDARDS=no git commit 

and then in the script (example in Bash, but you can read env vars in any language your hook is in):

 if [ "$STANDARDS" != "no" ]; then ...check for code standards... fi 

---

Git usually does not pass information beyond the limits specified in man githooks to every attempt, so try to do this using the command line option a la git commit --no-standards or some of them will not work.

Answer 2

To add to what @Amber said, you should be able to:

 STANDARDS=no git commit -m "committing" 

and you have the corresponding pre-commit hook that will see the environment variable and make decisions.

Of course there is --no-verify , but I suppose you don't want to skip all the pre-commit:

-P
--no-verify

This option bypasses the pre-commit and commit-msg hooks. See also githooks (5).