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#!/usr/bin/env python

import hashlib
import os
import sys
import tarfile
import urllib

root = os.path.join(os.path.dirname(__file__), '..')
with open(os.path.join(root, 'cpanfile.snapshot')) as cpanfile:
    hash = hashlib.md5(cpanfile.read()).hexdigest()
wanted_filename = 'fixmystreet-local-%s.tgz' % hash

url = 'https://fixmystreet-bundle-cache.s3.amazonaws.com/%s' % wanted_filename
try:
    urllib.urlretrieve(url, wanted_filename)
    if tarfile.is_tarfile(wanted_filename):
        tfile = tarfile.open(wanted_filename)
        tfile.extractall()
        print "Cached copy found and extracted"
        sys.exit(0)
    else:
        os.remove(wanted_filename)
except IOError:
    os.remove(wanted_filename)

print "No cached copy found, running carton install..."
os.system('vendor/bin/carton install --deployment')