Remap repo names in ATC query script

Our repo shortnames are unique across all namespaces, so remap
governance repo names to Gerrit repo names by matching them in any
namespace. This works around asynchronous namespace moves which may
take effect independently in project-config and governance repos at
different times.

Change-Id: Ia70202bb874b6671950f4033d974087a2ee531d5

tools/atc/email_stats.py

@@ -161,13 +161,25 @@ def repo_stats(repo, output, begin, end, keyfile, user):
     print
 
 
-def get_repos(url):
+def get_repos(url, keyfile, user):
+    client = paramiko.SSHClient()
+    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+    client.load_system_host_keys()
+    client.connect(
+        'review.openstack.org', port=29418,
+        key_filename=os.path.expanduser(keyfile), username=user)
+    stdin, stdout, stderr = client.exec_command('gerrit ls-projects')
+    gerrit_repos = [x.strip() for x in stdout]
+
     projects_yaml = yaml.load(requests.get(url).text)
     repos = []
     for team in projects_yaml:
         for deliver in projects_yaml[team]['deliverables']:
             for repo in projects_yaml[team]['deliverables'][deliver]['repos']:
-                repos.append(repo)
+                for r in gerrit_repos:
+                    if re.search('/%s$' % repo.split('/')[1], r):
+                        repos.append(r)
+                        break
     return repos
 
 
@@ -206,7 +218,7 @@ def main():
         projects_url = PROJECTS_URL
         extra_atcs_url = EXTRA_ATCS_URL
 
-    for repo in get_repos(projects_url):
+    for repo in get_repos(projects_url, options.keyfile, options.user):
         output = 'out/%s.csv' % repo.split('/')[-1]
         repo_stats(repo, output, options.begin, options.end,
                    options.keyfile, options.user)