emerge --sync: support repo arguments

diff --git a/pym/_emerge/actions.py b/pym/_emerge/actions.py
index 5d20e003d968491bbb84202f1b6a0871d66def11..c5ee353771fda16aa7fef13b981912689c5a819a 100644 (file)
--- a/pym/_emerge/actions.py
+++ b/pym/_emerge/actions.py
@@ -2025,7 +2025,38 @@ def action_sync(emerge_config, trees=DeprecationWarning,
                emerge_config.target_config.settings.features
        emergelog(xterm_titles, " === sync")
 
-       for repo in emerge_config.target_config.settings.repositories:
+       selected_repos = []
+       unknown_repo_names = []
+       missing_sync_type = []
+       if emerge_config.args:
+               for repo_name in emerge_config.args:
+                       try:
+                               repo = emerge_config.target_config.settings.repositories[repo_name]
+                       except KeyError:
+                               unknown_repo_names.append(repo_name)
+                       else:
+                               selected_repos.append(repo)
+                               if repo.sync_type is None:
+                                       missing_sync_type.append(repo)
+
+               if unknown_repo_names:
+                       writemsg_level("!!! %s\n" % _("Unknown repo(s): %s") %
+                               " ".join(unknown_repo_names),
+                               level=logging.ERROR, noiselevel=-1)
+
+               if missing_sync_type:
+                       writemsg_level("!!! %s\n" %
+                               _("Missing sync-type for repo(s): %s") %
+                               " ".join(repo.name for repo in missing_sync_type),
+                               level=logging.ERROR, noiselevel=-1)
+
+               if unknown_repo_names or missing_sync_type:
+                       return 1
+
+       else:
+               selected_repos.extend(emerge_config.target_config.settings.repositories)
+
+       for repo in selected_repos:
                if repo.sync_type is not None:
                        returncode = _sync_repo(emerge_config, repo)
                        if returncode != os.EX_OK: