suyu-mirror/hooks/pre-commit

#!/bin/sh

# Enforce citra's whitespace policy
git config --local core.whitespace tab-in-indent,trailing-space

# If there are whitespace errors, print the offending file names and fail.
if ! git diff --cached --check; then
    cat<<END;

Error: This commit would contain trailing spaces or tabs, which is against this repo's policy.
Please correct those issues before commiting. (Use 'git diff --check' for more details)
If you know what you are doing, you can try 'git commit --no-verify' to bypass the check
END
    exit 1
fi

# Check for tabs, since tab-in-indent catches only those at the beginning of a line
if git diff --cached | egrep '^\+.*	'; then
    cat<<END;
Error: This commit would contain a tab, which is against this repo's policy.
If you know what you are doing, you can try 'git commit --no-verify' to bypass the check.
END
    exit 1
fi