The @PLUGIN@ allows a systematic collection of repository metrics. Metrics are updated upon a ref-update receive.
Currently, the metrics exposed are the following:
plugins_git_repo_metrics_numberofbitmaps_<repo_name> plugins_git_repo_metrics_numberoflooseobjects_<repo_name> plugins_git_repo_metrics_numberoflooserefs_<repo_name> plugins_git_repo_metrics_numberofpackedobjects_<repo_name> plugins_git_repo_metrics_numberofpackedrefs_<repo_name> plugins_git_repo_metrics_numberofpackfiles_<repo_name> plugins_git_repo_metrics_sizeoflooseobjects_<repo_name> plugins_git_repo_metrics_sizeofpackedobjects_<repo_name>
The plugin allows to customize its behaviour through a specific git-repo-metrics.config file in the $GERRIT_SITE/etc directory.
The metrics are not collected for all the projects, otherwise there might be an explosion of metrics exported, but only the one listed in the configuration file, i.e.:
[git-repo-metrics] project = test-project project = another-repo