Add importutils from openstack-common

As a side-effect, openstack.common.setup is getting updated

Change-Id: I9f8696ec5c82ef32872e1a974102dcd179eb70f9

glanceclient/openstack/common/importutils.py

@@ -0,0 +1,44 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2011 OpenStack LLC.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Import related utilities and helper functions.
+"""
+
+import sys
+
+
+def import_class(import_str):
+    """Returns a class from a string including module and class"""
+    mod_str, _sep, class_str = import_str.rpartition('.')
+    try:
+        __import__(mod_str)
+        return getattr(sys.modules[mod_str], class_str)
+    except (ImportError, ValueError, AttributeError), exc:
+        raise ImportError('Class %s cannot be found (%s)' %
+                (class_str, str(exc)))
+
+
+def import_object(import_str, *args, **kwargs):
+    """Import a class and return an instance of it."""
+    return import_class(import_str)(*args, **kwargs)
+
+
+def import_module(import_str):
+    """Import a module."""
+    __import__(import_str)
+    return sys.modules[import_str]

glanceclient/openstack/common/setup.py

@@ -23,6 +23,8 @@ import os
 import re
 import subprocess
 
+from setuptools.command import sdist
+
 
 def parse_mailmap(mailmap='.mailmap'):
     mapping = {}
@@ -31,14 +33,15 @@ def parse_mailmap(mailmap='.mailmap'):
         for l in fp:
             l = l.strip()
             if not l.startswith('#') and ' ' in l:
-                canonical_email, alias = l.split(' ')
+                canonical_email, alias = [x for x in l.split(' ')
+                                          if x.startswith('<')]
                 mapping[alias] = canonical_email
     return mapping
 
 
 def canonicalize_emails(changelog, mapping):
     """Takes in a string and an email alias mapping and replaces all
-        instances of the aliases in the string with their real email
+       instances of the aliases in the string with their real email.
     """
     for alias, email in mapping.iteritems():
         changelog = changelog.replace(alias, email)
@@ -97,7 +100,7 @@ def _run_shell_command(cmd):
 
 
 def write_vcsversion(location):
-    """ Produce a vcsversion dict that mimics the old one produced by bzr
+    """Produce a vcsversion dict that mimics the old one produced by bzr.
     """
     if os.path.isdir('.git'):
         branch_nick_cmd = 'git branch | grep -Ei "\* (.*)" | cut -f2 -d" "'
@@ -118,10 +121,63 @@ version_info = {
 
 
 def write_git_changelog():
-    """ Write a changelog based on the git changelog """
+    """Write a changelog based on the git changelog."""
     if os.path.isdir('.git'):
         git_log_cmd = 'git log --stat'
         changelog = _run_shell_command(git_log_cmd)
         mailmap = parse_mailmap()
         with open("ChangeLog", "w") as changelog_file:
             changelog_file.write(canonicalize_emails(changelog, mailmap))
+
+
+def generate_authors():
+    """Create AUTHORS file using git commits."""
+    jenkins_email = 'jenkins@review.openstack.org'
+    old_authors = 'AUTHORS.in'
+    new_authors = 'AUTHORS'
+    if os.path.isdir('.git'):
+        # don't include jenkins email address in AUTHORS file
+        git_log_cmd = ("git log --format='%aN <%aE>' | sort -u | "
+                       "grep -v " + jenkins_email)
+        changelog = _run_shell_command(git_log_cmd)
+        mailmap = parse_mailmap()
+        with open(new_authors, 'w') as new_authors_fh:
+            new_authors_fh.write(canonicalize_emails(changelog, mailmap))
+            if os.path.exists(old_authors):
+                with open(old_authors, "r") as old_authors_fh:
+                    new_authors_fh.write('\n' + old_authors_fh.read())
+
+
+def get_cmdclass():
+    """Return dict of commands to run from setup.py."""
+
+    cmdclass = dict()
+
+    class LocalSDist(sdist.sdist):
+        """Builds the ChangeLog and Authors files from VC first."""
+
+        def run(self):
+            write_git_changelog()
+            generate_authors()
+            # sdist.sdist is an old style class, can't use super()
+            sdist.sdist.run(self)
+
+    cmdclass['sdist'] = LocalSDist
+
+    # If Sphinx is installed on the box running setup.py,
+    # enable setup.py to build the documentation, otherwise,
+    # just ignore it
+    try:
+        from sphinx.setup_command import BuildDoc
+
+        class LocalBuildDoc(BuildDoc):
+            def run(self):
+                for builder in ['html', 'man']:
+                    self.builder = builder
+                    self.finalize_options()
+                    BuildDoc.run(self)
+        cmdclass['build_sphinx'] = LocalBuildDoc
+    except ImportError:
+        pass
+
+    return cmdclass

openstack-common.conf

@@ -1,7 +1,7 @@
 [DEFAULT]
 
 # The list of modules to copy from openstack-common
-modules=setup
+modules=setup,importutils
 
 # The base module to hold the copy of openstack.common
 base=glanceclient