Remove unused checkout_vendor

Keystone tests don't, and shouldn't, use checkout_vendor, so
remove it and other test functions that it was calling and are
now unused.

Change-Id: I530560d2b7e57278116fab6a4f7df3ea61e757c8

keystone/tests/unit/core.py

@@ -22,7 +22,6 @@ import re
 import shutil
 import socket
 import sys
-import time
 import warnings
 
 import fixtures
@@ -50,13 +49,11 @@ from keystone.common.kvs import core as kvs_core
 from keystone import config
 from keystone import controllers
 from keystone import exception
-from keystone.i18n import _LW
 from keystone import notifications
 from keystone.policy.backends import rules
 from keystone.server import common
 from keystone import service
 from keystone.tests.unit import ksfixtures
-from keystone.tests.unit import utils
 
 
 config.configure()
@@ -116,38 +113,6 @@ class dirs(object):
 DEFAULT_TEST_DB_FILE = dirs.tmp('test.db')
 
 
-def checkout_vendor(repo, rev):
-    # TODO(termie): this function is a good target for some optimizations :PERF
-    name = repo.split('/')[-1]
-    if name.endswith('.git'):
-        name = name[:-4]
-
-    working_dir = os.getcwd()
-    revdir = os.path.join(VENDOR, '%s-%s' % (name, rev.replace('/', '_')))
-    modcheck = os.path.join(VENDOR, '.%s-%s' % (name, rev.replace('/', '_')))
-    try:
-        if os.path.exists(modcheck):
-            mtime = os.stat(modcheck).st_mtime
-            if int(time.time()) - mtime < 10000:
-                return revdir
-
-        if not os.path.exists(revdir):
-            utils.git('clone', repo, revdir)
-
-        os.chdir(revdir)
-        utils.git('checkout', '-q', 'master')
-        utils.git('pull', '-q')
-        utils.git('checkout', '-q', rev)
-
-        # write out a modified time
-        with open(modcheck, 'w') as fd:
-            fd.write('1')
-    except environment.subprocess.CalledProcessError:
-        LOG.warning(_LW('Failed to checkout %s'), repo)
-    os.chdir(working_dir)
-    return revdir
-
-
 @atexit.register
 def remove_test_databases():
     db = dirs.tmp('test.db')

keystone/tests/unit/utils.py

@@ -21,8 +21,6 @@ from oslo_log import log
 import six
 from testtools import testcase
 
-from keystone.common import environment
-
 
 LOG = log.getLogger(__name__)
 
@@ -54,47 +52,6 @@ def new_uuid():
     return uuid.uuid4().hex
 
 
-# From python 2.7
-def check_output(*popenargs, **kwargs):
-    r"""Run command with arguments and return its output as a byte string.
-
-    If the exit code was non-zero it raises a CalledProcessError.  The
-    CalledProcessError object will have the return code in the returncode
-    attribute and output in the output attribute.
-
-    The arguments are the same as for the Popen constructor.  Example:
-
-    >>> check_output(['ls', '-l', '/dev/null'])
-    'crw-rw-rw- 1 root root 1, 3 Oct 18  2007 /dev/null\n'
-
-    The stdout argument is not allowed as it is used internally.
-    To capture standard error in the result, use stderr=STDOUT.
-
-    >>> import sys
-    >>> check_output(['/bin/sh', '-c',
-    ...               'ls -l non_existent_file ; exit 0'],
-    ...              stderr=sys.STDOUT)
-    'ls: non_existent_file: No such file or directory\n'
-    """
-    if 'stdout' in kwargs:
-        raise ValueError('stdout argument not allowed, it will be overridden.')
-    LOG.debug(' '.join(popenargs[0]))
-    process = environment.subprocess.Popen(stdout=environment.subprocess.PIPE,
-                                           *popenargs, **kwargs)
-    output, unused_err = process.communicate()
-    retcode = process.poll()
-    if retcode:
-        cmd = kwargs.get('args')
-        if cmd is None:
-            cmd = popenargs[0]
-        raise environment.subprocess.CalledProcessError(retcode, cmd)
-    return output
-
-
-def git(*args):
-    return check_output(['git'] + list(args))
-
-
 def wip(message):
     """Mark a test as work in progress.