1 files changed, 53 insertions, 0 deletions
diff --git a/overseerlib/plugins/ramfree_plugin.py b/overseerlib/plugins/ramfree_plugin.py
new file mode 100644
index 0000000..b1161ee
--- /dev/null
+++ b/overseerlib/plugins/ramfree_plugin.py
@@ -0,0 +1,53 @@
+#!/usr/bin/python
+#
+# Copyright (C) 2014  Codethink Limited
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+
+import cliapp
+
+import overseerlib
+
+
+class RamFreePlugin(cliapp.Plugin):
+
+    def enable(self):
+        self.app.add_subcommand('ramfree', self.ramfree,
+                                arg_synopsis='THRESHOLD')
+
+    def disable(self):
+        pass
+
+    def ramfree(self, args):
+        if len(args) < 1:
+            raise cliapp.AppException('ramfree requires a threshold to be '
+                                      'specified')
+        threshold = args[0]
+        threshold_type = args[1] if len(args) == 2 else 'high'
+
+        if threshold.isdigit() == False:
+            threshold = overseerlib.app.human_to_bytes(threshold)
+
+        with open('/proc/meminfo') as f:
+            for line in f:
+                if line.startswith('MemFree'):
+                    free = line.split()[1]
+        free = int(free) * 1024
+
+        message = ''
+        if free >= threshold:
+            message+=('%s bytes of memory free\n' % free)
+        if message != '':
+            print message