[sysmon] Add git repo version metrics to sysmon

BUG=chromium:698090
TEST=None

Change-Id: Ic38856ed4a62eadcd7cb76d1cbf73842dd20ccd7
Reviewed-on: https://chromium-review.googlesource.com/449098
Commit-Ready: Allen Li <ayatane@chromium.org>
Tested-by: Allen Li <ayatane@chromium.org>
Reviewed-by: David Riley <davidriley@chromium.org>
diff --git a/scripts/sysmon/__main__.py b/scripts/sysmon/__main__.py
index c199f1f..86c4d34 100644
--- a/scripts/sysmon/__main__.py
+++ b/scripts/sysmon/__main__.py
@@ -19,6 +19,7 @@
 from chromite.lib import ts_mon_config
 from infra_libs.ts_mon.common import interface
 
+from chromite.scripts.sysmon import git_metrics
 from chromite.scripts.sysmon import loop
 from chromite.scripts.sysmon import net_metrics
 from chromite.scripts.sysmon import osinfo_metrics
@@ -54,6 +55,7 @@
     system_metrics.collect_proc_info()
     system_metrics.collect_load_avg()
     puppet_metrics.collect_puppet_summary()
+    git_metrics.collect_git_metrics()
     self._collect_prod_hosts()
     self._collect_osinfo()
     system_metrics.collect_unix_time()  # must be just before flush