Implement getting and setting repo metadata for all host types

* GitlabUpstream: Implement get_repo_metadata
* {Gerrit,Gitlab,Local}Downstream: Use given metadata in prepare_repo

3 files changed, 45 insertions, 17 deletions

diff --git a/lorrycontroller/gerrit.py b/lorrycontroller/gerrit.py
index 6fde905..dd82ff8 100644
--- a/lorrycontroller/gerrit.py
+++ b/lorrycontroller/gerrit.py
@@ -66,12 +66,22 @@ class GerritDownstream(hosts.DownstreamHost):
         The 'lorry' user must have createProject capability in the Gerrit.
 
         '''
-        # TODO: set metadata
 
         if self._has_project(name):
             logging.info('Project %s exists in local Gerrit already.',
                          name)
-            return
-
-        self._ssh_command(['gerrit', 'create-project', name])
-        logging.info('Created %s project in local Gerrit.', name)
+        else:
+            self._ssh_command(['gerrit', 'create-project', name])
+            logging.info('Created %s project in local Gerrit.', name)
+
+        # We can only set this metadata if we're the owner of the
+        # repository.  For now, ignore failures.
+        try:
+            if 'head' in metadata:
+                self._ssh_command(['gerrit', 'set-head', name,
+                                   '--new-head', metadata['head']])
+            if 'description' in metadata:
+                self._ssh_command(['gerrit', 'set-project', name,
+                                   '-d', metadata['description']])
+        except cliapp.AppException:
+            pass
diff --git a/lorrycontroller/gitlab.py b/lorrycontroller/gitlab.py
index ab6df63..4f70f0a 100644
--- a/lorrycontroller/gitlab.py
+++ b/lorrycontroller/gitlab.py
@@ -66,19 +66,22 @@ class GitlabDownstream(hosts.DownstreamHost):
 
         self.gl = _init_gitlab(host, app_settings['gitlab-private-token'])
 
-    def _has_project(self, repo_path):
-        try:
-            self.gl.projects.get(repo_path)
-            return True
-        except gitlab.GitlabGetError:
-            return False
-
     def prepare_repo(self, repo_path, metadata):
-        # TODO: set metadata
 
-        if self._has_project(repo_path):
+        try:
+            project = self.gl.projects.get(repo_path)
+        except gitlab.GitlabGetError:
+            pass
+        else:
             logging.info('Project %s exists in local GitLab already.',
                          repo_path)
+            if 'head' in metadata \
+               and project.default_branch != metadata['head']:
+                project.default_branch = metadata['head']
+            if 'description' in metadata \
+               and project.description != metadata['description']:
+                project.description = metadata['description']
+            project.save()
             return
 
         path_comps = repo_path.split('/')
@@ -109,6 +112,8 @@ class GitlabDownstream(hosts.DownstreamHost):
             'public': True,
             'merge_requests_enabled': False,
             'namespace_id': group.id,
+            'default_branch': metadata.get('head'),
+            'description': metadata.get('description'),
         }
         self.gl.projects.create(project)
 
@@ -157,5 +162,10 @@ class GitlabUpstream(hosts.UpstreamHost):
                 self._protocol, split.netloc, split.path, '', ''))
 
     def get_repo_metadata(self, repo_path):
-        # TODO
-        return {}
+        project = self.gl.projects.get(repo_path)
+        metadata = {}
+        if project.default_branch is not None:
+            metadata['head'] = project.default_branch
+        if project.description is not None:
+            metadata['description'] = project.description
+        return metadata
diff --git a/lorrycontroller/local.py b/lorrycontroller/local.py
index 15a4048..d55214d 100644
--- a/lorrycontroller/local.py
+++ b/lorrycontroller/local.py
@@ -15,6 +15,7 @@
 
 import logging
 import os
+import os.path
 
 import cliapp
 
@@ -45,4 +46,11 @@ class LocalDownstream(hosts.DownstreamHost):
         # whether the repository already exists
         os.makedirs(repo_path, exist_ok=True)
         cliapp.runcmd(['git', 'init', '--bare', repo_path])
-        # TODO: set metadata
+
+        if 'head' in metadata:
+            cliapp.runcmd(['git', '--git-dir', repo_path,
+                           'symbolic-ref', 'HEAD',
+                           'refs/heads/' + metadata['head']])
+        if 'description' in metadata:
+            with open(os.path.join(repo_path, 'description'), 'w') as f:
+                print(metadata['description'], file=f)