Allow overriding clone depth

This changes the default for packages to be unlimited depth, but allows setting
the depth on a per project basis.  Without this change it's not possible to use
a gitref other than 'master'.

giftwrap/builders/package_builder.py

@@ -78,7 +78,8 @@ class PackageBuilder(Builder):
 
             LOG.info("Fetching source code for '%s'", project.name)
             repo = OpenstackGitRepo(project.giturl, project.name,
-                                    project.gitref)
+                                    project.gitref,
+                                    depth=project.gitdepth)
             repo.clone(project_src_path)
 
             # tell package users where this came from

giftwrap/openstack_git_repo.py

@@ -30,13 +30,14 @@ LOG = logging.getLogger(__name__)
 class OpenstackGitRepo(object):
 
     def __init__(self, url, project=None, branch='master',
-                 metadata_cache_dir=None):
+                 metadata_cache_dir=None, depth=None):
         self.url = url
         self._project = project
         self.branch = branch
         self._repo = None
         self._metadata_cache_dir = metadata_cache_dir
         self._head_commit = None
+        self._depth = depth
 
     @property
     def cloned(self):
@@ -60,7 +61,11 @@ class OpenstackGitRepo(object):
 
     def clone(self, outdir):
         LOG.debug("Cloning '%s' to '%s'", self.url, outdir)
-        self._repo = Repo.clone_from(self.url, outdir, recursive=True, depth=1)
+        kwargs = {'recursive': True}
+        if self._depth:
+            LOG.debug("Cloning with depth=%d", self._depth)
+            kwargs['depth'] = self._depth
+        self._repo = Repo.clone_from(self.url, outdir, **kwargs)
         git = self._repo.git
         git.checkout(self.branch)
         self._invalidate_attrs()

giftwrap/openstack_project.py

@@ -33,14 +33,15 @@ TEMPLATE_VARS = ('name', 'version', 'gitref', 'stackforge')
 class OpenstackProject(object):
 
     def __init__(self, settings, name, version=None, gitref=None, giturl=None,
-                 venv_command=None, install_command=None, install_path=None,
-                 package_name=None, stackforge=False, system_dependencies=[],
-                 pip_dependencies=[]):
+                 gitdepth=None, venv_command=None, install_command=None,
+                 install_path=None, package_name=None, stackforge=False,
+                 system_dependencies=[], pip_dependencies=[]):
         self._settings = settings
         self.name = name
         self._version = version
         self._gitref = gitref
         self._giturl = giturl
+        self.gitdepth = gitdepth
         self._venv_command = venv_command
         self._install_command = install_command
         self._install_path = install_path