Work around low bandwith connection with PIP to install a requirements file in jenkins.

cackinstaller.py

# Terrible hack to get around pip bailing on flaky internet connection.
#
# Usage:
#   python cackinstaller.py requirements.txt
#


import os
import sys

retries = 5

LOCALSHOP_INSTANCE = 'http://192.168.91.37:8900/simple/'

if __name__ == '__main__':
    if len(sys.argv) == 2:
        filename = sys.argv[1]
        # Try and instlal the old fashioned way first
        command = 'pip install -r %s' % filename
        status os.system(command)
        if status == 0:
            sys.exit(0)
        for package in open(filename).readlines():
            if package.strip().startswith('#'):
                 continue
            if package.strip() == '':
                 continue
            for go in range(retries):
                command = 'pip install %s' % package
                if go == 0:
                    command += 'pip install -i %s %s' % (LOCALSHOP_INSTANCE, package)
                else:
                    command = 'pip install %s' % package
                status = os.system(command)
                if not status:
                    break
            else:
                print 'Failed with %d retrys' % retries
                sys.exit(1)