1 files changed, 70 insertions, 0 deletions
diff --git a/charms/trusty/ceilometer-contrail/hooks/charmhelpers/fetch/giturl.py b/charms/trusty/ceilometer-contrail/hooks/charmhelpers/fetch/giturl.py
new file mode 100644
index 0000000..65ed531
--- /dev/null
+++ b/charms/trusty/ceilometer-contrail/hooks/charmhelpers/fetch/giturl.py
@@ -0,0 +1,70 @@
+# Copyright 2014-2015 Canonical Limited.
+#
+# This file is part of charm-helpers.
+#
+# charm-helpers is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License version 3 as
+# published by the Free Software Foundation.
+#
+# charm-helpers is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with charm-helpers.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+from subprocess import check_call, CalledProcessError
+from charmhelpers.fetch import (
+    BaseFetchHandler,
+    UnhandledSource,
+    filter_installed_packages,
+    apt_install,
+)
+
+if filter_installed_packages(['git']) != []:
+    apt_install(['git'])
+    if filter_installed_packages(['git']) != []:
+        raise NotImplementedError('Unable to install git')
+
+
+class GitUrlFetchHandler(BaseFetchHandler):
+    """Handler for git branches via generic and github URLs"""
+    def can_handle(self, source):
+        url_parts = self.parse_url(source)
+        # TODO (mattyw) no support for ssh git@ yet
+        if url_parts.scheme not in ('http', 'https', 'git', ''):
+            return False
+        elif not url_parts.scheme:
+            return os.path.exists(os.path.join(source, '.git'))
+        else:
+            return True
+
+    def clone(self, source, dest, branch="master", depth=None):
+        if not self.can_handle(source):
+            raise UnhandledSource("Cannot handle {}".format(source))
+
+        if os.path.exists(dest):
+            cmd = ['git', '-C', dest, 'pull', source, branch]
+        else:
+            cmd = ['git', 'clone', source, dest, '--branch', branch]
+            if depth:
+                cmd.extend(['--depth', depth])
+        check_call(cmd)
+
+    def install(self, source, branch="master", dest=None, depth=None):
+        url_parts = self.parse_url(source)
+        branch_name = url_parts.path.strip("/").split("/")[-1]
+        if dest:
+            dest_dir = os.path.join(dest, branch_name)
+        else:
+            dest_dir = os.path.join(os.environ.get('CHARM_DIR'), "fetched",
+                                    branch_name)
+        try:
+            self.clone(source, dest_dir, branch, depth)
+        except CalledProcessError as e:
+            raise UnhandledSource(e)
+        except OSError as e:
+            raise UnhandledSource(e.strerror)
+        return dest_dir