#!/bin/sh
#
# An hook script to verify linting and passing unit tests.
#
# 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, copy or symlink to your repo's
# ".git/hooks/pre-commit".
#
# Please read the following as it will execute on your machine on each commit.

set -e

# stash everything that wasn't just staged
# so that we are only testing the staged code
stash_result=$(git stash --keep-index)

# Run flake8 linting
flake8 zipline tests
# Run unit tests
nosetests -x

# restore unstaged code
# N.B. this won't run if linting or unit tests fail
# But if either fail, it's probably best to have only the offending
# staged commits 'active', anyway.
stash_result=$(git stash --keep-index)
if [ "$stash_result" != "No local changes to save" ]
then
    git stash pop -q
fi