pre-push

#!/usr/bin/env python

#
# Python script that implements a Git Hook of type Pre Push
# Author: Alexandre Pardo
# Date: 06/26/2019
#

import json, os, re, sys
from subprocess import check_call

def npm_check_run(task_name, scripts):
    has_task = task_name in scripts
    if has_task:
        command = 'npm run ' + task_name
	check_call(command, shell=True)

print '=================================================='
print '  GIT PRE-PUSH HOOK IS GONNA RUN LINT/TEST/BUILD'
print '=================================================='

try:

	package_json_file_name = 'package.json'
	is_npm_project = os.path.isfile(package_json_file_name)

	if not is_npm_project: # Nothing to do
		sys.exit(0)

	package_json_content = open(package_json_file_name).read()
	package_json = json.loads(package_json_content)

	scripts = package_json['scripts']

        npm_check_run('lint', scripts)
        npm_check_run('test', scripts)
        npm_check_run('build', scripts)

except Exception as e:
	# Oops, either lint, test or build failed.
	print 'EXCEPTION THROWN ON PRE-PUSH HOOK', e
	sys.exit(1)