Add simple subcommand for logging to server admin log

Summary: Sometimes it's annoying to context switch back to IRC. Also, there's been some talk about removing the IRC dependency for logging, so this would provide a useful fallback

Test Plan: Tyler tested it, not me

Reviewers: mmodell, #release-engineering-team, thcipriani

Reviewed By: #release-engineering-team, thcipriani

Subscribers: thcipriani

Tags: #release-engineering-team

Differential Revision: https://phabricator.wikimedia.org/D567

Author: Chad Horohoe

Diff for: scap/__init__.py

@@ -15,6 +15,7 @@
     RebuildCdbs,
     RefreshCdbJsonFiles,
     RestartHHVM,
+    ServerAdminLog,
     Scap,
     SecurityPatchCheck,
     SyncCommon,
@@ -43,6 +44,7 @@
     'RebuildCdbs',
     'RefreshCdbJsonFiles',
     'RestartHHVM',
+    'ServerAdminLog',
     'Scap',
     'SecurityPatchCheck',
     'SyncCommon',
@@ -72,6 +74,7 @@ def all_applications():
     MWVersionsInUse,
     RebuildCdbs,
     RefreshCdbJsonFiles,
+    ServerAdminLog,
     RestartHHVM,
     Scap,
     SecurityPatchCheck,

Diff for: scap/main.py

@@ -802,3 +802,15 @@ def main(self, *extra_args):
             os.mkdir(upstream_dir)
 
         tasks.refresh_cdb_json_files(cdb_dir, use_cores, self.verbose)
+
+
+@cli.command('log')
+@cli.command('sal')
+class ServerAdminLog(cli.Application):
+    """
+    Send an entry to the server admin log
+    """
+
+    @cli.argument('message', nargs='*', help='Log message for SAL')
+    def main(self, *extra_args):
+        self.announce(self.arguments.message)