pre-commit

#!/bin/sh
#
# 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=4b825dc642cb6eb9a060e54bf8d69288fbee4904
# fi

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

# # Redirect output to stderr.
# exec 1>&2

# 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
# 	cat <<\EOF
# Error: Attempt to add a non-ASCII file name.

# This can cause problems if you want to work with people on other platforms.

# To be portable it is advisable to rename the file.

# If you know what you are doing you can disable this check using:

#   git config hooks.allownonascii true
# EOF
# 	exit 1
# fi

# If there are whitespace errors, print the offending file names and fail.
# exec git diff-index --check --cached $against --

if flake8 --version >/dev/null 2>&1; then
	echo "Flake8 already installed!" >/dev/null
else
	echo "\n\033[40m\033[1;37m Installing Flake8... \033[0m\n"
	pip install flake8
	[[ $? -eq 0 ]] && echo "\n\033[40m\033[1;97m Flake8 installed! \033[0m\n"
fi

python_files=$(git status --porcelain | awk '{ print $2 }' | grep .py)

if [ -z "$python_files" ]; then
	echo "No python files to commit..." >/dev/null
else
	echo "\n\033[40m\033[1;37m Running lint against your python changed files... :)\033[0m\n"

	for pyfile in $python_files; do
		flake8 $pyfile --show-source --statistics
	done

	if [[ $? -eq 0 ]]; then
		echo "\033[40m\033[1;97m Well done warrior, your python files are PEP8 compliant :) \033[0m\n"
		exit 0
	else
		echo "\033[0;101m\033[1;97m Your code is not PEP8 compliant :( Fixt it!\033[0m\n"
		exit 1
	fi
fi