git pre-commit hook

pre-commit

#!/bin/sh
#
# This pre-commit hook tests various conditions to allow the commit.
# It can be disabled by using the "-n" option with "git commit".
#
# To use it, link it to .git/hooks/pre-commit:
#
# ln -s `pwd`/pre-commit .git/hooks/

if git rev-parse --verify HEAD >/dev/null 2>&1
then
	against=HEAD
else
	# Initial commit: diff against an empty tree object
	against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi

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

# Redirect output to stderr.
exec 1>&2

echo "> Checking for non-ascii filenames"
# 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' | wc -c) != 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

# If there are whitespace errors, print the offending file names and fail.
#exec git diff-index --check --cached $against --
echo "> Checking for whitespace errors"
res=$(git diff-index --check --cached $against --)
if test -n "$res"; then  # if $res isn't empty, then some files have been found guilty
    echo "Blocking commit, found whitespace errors in files commited:"
    echo $res
    exit 1
fi

# make sure there's no TODO, debugging... left
echo "> Checking for bad text"
errors=0
for bad in 'import pdb' 'import ipdb' 'TODO' 'print' 'assert False'; do
    echo ">> checking for '$bad'"
    res=$(git diff-index --name-only --cached $against -S"$bad" --)
    if test -n "$res"; then  # if $res isn't empty, then some files have been found guilty
        echo "ERROR, found '$bad' in files commited:"
        echo $res
        errors=$(($errors + 1))
    fi
done
exit $errors