Pre commit hook for rmlint - put in .git/hooks/pre-commit and chmod +x it.

pre-commit

#!/bin/sh
#
# Shamelessly stolen from: 
# http://www.es.ele.tue.nl/sdf3/manuals/development/files/pre-commit
# An example hook script to verify what is about to be committed.
# Called by "git commit" with no arguments.  The hook should
# exit with non-zero status after issuing an appropriate message if
# it wants to stop the commit.
#
# To enable this hook, rename this file to "pre-commit".

if git rev-parse --verify HEAD >/dev/null 2>&1
then
	against=HEAD
else
	# Initial commit: diff against an empty tree object
	against=519e9ec3f6d37d86bb53ab5bd389645800677549
fi

# If you want to allow non-ascii filenames set this variable to true.
allownonascii=$(git config hooks.allownonascii)

# Cross platform projects tend to avoid non-ascii filenames; prevent
# them from being added to the repository. We exploit the fact that the
# printable range starts at the space character and ends with tilde.
if [ "$allownonascii" != "true" ] &&
	# Note that the use of brackets around a tr range is ok here, (it's
	# even required, for portability to Solaris 10's /usr/bin/tr), since
	# the square bracket bytes happen to fall in the designated range.
	test "$(git diff --cached --name-only --diff-filter=A -z $against | LC_ALL=C tr -d '[ -~]\0')"
then
	echo "Error: Attempt to add a non-ascii file name."
	echo
	echo "This can cause problems if you want to work"
	echo "with people on other platforms."
	echo
	echo "To be portable it is advisable to rename the file ..."
	echo
	echo "If you know what you are doing you can disable this"
	echo "check using:"
	echo
	echo "  git config hooks.allownonascii true"
	echo
	exit 1
fi

version=`astyle --version 2> /dev/null`
if test "x$version" != "x"; then
echo "SDF3 git pre-receive hook:"
echo "Did not find astyle, please install it before continuing."
exit 1
fi
ASTYLE=astyle

case `$ASTYLE --version 2> /dev/null` in
  Artistic*)
      ;;
  default)
      echo "SDF3 git pre-commit hook:"
      echo "Did not find astyle, please install it before continuing."
      exit 1
      ;;
esac

ASTYLE_PARAMETERS="-p -k3 -A14"

echo "-- Formatting source code..."

files=`git-diff-index --diff-filter=ACMR --name-only -r --cached $against --`
for file in $files; do
    x=`echo $file |grep -E '(\.c|\.h)'`
    if test "x$x" != "x"; then
        $ASTYLE ${ASTYLE_PARAMETERS} $file
        git add $file
    fi
done

echo "-- Formatting source code done!"