Add user interface integration for psot repositories via cli and environment variable

psot/config.py

@@ -123,8 +123,20 @@ class Config:
       config['repository_paths'] = self.repo_paths
       return config
 
-def load_config():
-    return Config([pkg_resources.resource_filename('psot', '')]).load_config()
+def load_config(repositories=None):
+    # always use the installed repository as the first repo
+    all_repositories = [pkg_resources.resource_filename('psot', '')]
+
+    # check for repositories via environment variable
+    if 'PSOT_REPOSITORIES' in os.environ:
+      variable = os.environ['PSOT_REPOSITORIES']
+      env_repos = variable.split(':')
+      all_repositories.extend(env_repos) 
+
+    if repositories:
+      all_repositories.extend(repositories)
+
+    return Config(all_repositories).load_config()
 
 if __name__ == "__main__":
     """prints the configuration"""

psot/main.py

@@ -15,6 +15,7 @@ def main():
     subparsers = parser.add_subparsers()
     info_parser = subparsers.add_parser('info')
     info_parser.add_argument('--listanalyses', '-l', action='store_true', help='Show available analysis steps')
+    info_parser.add_argument('--repository', '-r', action='append', help='Include the given repository')
     info_parser.set_defaults(func=info)
 
     analyze_parser = subparsers.add_parser('analyze')
@@ -28,10 +29,11 @@ def main():
     analyze_parser.add_argument('--debug', '-d', action='store_true', help='Debug mode, computation directory will not be removed after computation')
     analyze_parser.add_argument('--execution_dir', '-e', help='Use the specified execution directory and do not delete it after the computation')
     analyze_parser.add_argument('--use_cluster', '-C', action='store_true', help='Use compute cluster for execution')
+    analyze_parser.add_argument('--repository', '-r', action='append', help='Include the given repository')
     analyze_parser.set_defaults(func=analyze)
 
     args = parser.parse_args()
-    config = load_config()
+    config = load_config(repositories=args.repository)
     args.parser = parser
     args.func(args, config)