Switch to symlinked actions instead of one file per action.

actions/actions.py

@@ -0,0 +1,51 @@
+#!/usr/bin/python
+
+import os
+import sys
+
+from charmhelpers.core.host import service_pause, service_resume
+from charmhelpers.core.hookenv import action_fail, status_set
+
+
+MYSQL_SERVICE = "mysql"
+
+def pause():
+    """Pause the MySQL service.
+
+    @raises Exception should the service fail to stop.
+    """
+    if not service_pause(MYSQL_SERVICE):
+        raise Exception("Failed to pause MySQL service.")
+    status_set(
+        "maintenance", "Paused. Use 'resume' action to resume normal service.")
+
+def resume():
+    """Resume the MySQL service.
+
+    @raises Exception should the service fail to start."""
+    if not service_resume(MYSQL_SERVICE):
+        raise Exception("Failed to resume MySQL service.")
+    status_set("active", "")
+
+
+# A dictionary of all the defined actions to callables (which take
+# parsed arguments).
+ACTIONS = {"pause": pause, "resume": resume}
+
+
+def main(args):
+    action_name = os.path.basename(args[0])
+    try:
+        action = ACTIONS[action_name]
+    except KeyError:
+        return "Action %s undefined" % action_name
+    else:
+        try:
+            action(args)
+        except Exception as e:
+            action_fail(str(e))
+
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))
+

actions/pause

@@ -1,9 +0,0 @@
-#!/usr/bin/python
-import sys
-
-from charmhelpers.core import hookenv, host
-
-if __name__ == "__main__":
-    if not host.service_pause("mysql"):
-        hookenv.action_fail("Failed to pause MySQL service.")
-        sys.exit(-1)        

actions/pause

@@ -0,0 +1 @@
+actions.py

actions/resume

@@ -1,12 +0,0 @@
-#!/usr/bin/python
-import os
-import sys
-
-from charmhelpers.core import hookenv, host
-
-if __name__ == "__main__":
-    if not host.service_resume("mysql"):
-        hookenv.action_fail("Failed to resume MySQL service.")
-        sys.exit(-1)
-        
-

actions/resume

@@ -0,0 +1 @@
+actions.py