Minor changes

clusterman/__main__.py

@@ -1,6 +1,6 @@
 import argparse,sys
 from clusterman.config import *
-from  clusterman.commands import node, plugins
+from  clusterman.commands import node, plugins, frontend
 
 def main():
     parser = argparse.ArgumentParser()
@@ -20,7 +20,10 @@ def main():
     
     ##### Frontend commands #####
     target_frontend = subparsers.add_parser("frontend")
-
+    frontend_subparsers=target_frontend.add_subparsers(dest="command", help='Command')
+    # Info
+    node_cmd_scan=frontend_subparsers.add_parser("info")
+    
     ##### Plugins commands #####
     target_plugins = subparsers.add_parser("plugins")
     target_plugins.add_argument("name", help="Plugin's name")
@@ -51,7 +54,11 @@ def main():
             target_node.print_help(sys.stderr)
             sys.exit(1)  
     elif args.target == "frontend":
-        print("Do frontend related stuff")
+        if args.command == "info":
+            frontend.info()
+        else:
+            target_frontend.print_help(sys.stderr)
+            sys.exit(1)  
     elif args.target == "plugins":
         plugins.execute(args.name,args.parameters)
     

clusterman/commands/frontend.py

@@ -0,0 +1,25 @@
+import os, json
+from clusterman.config import CONF
+
+
+
+
+def info():
+    nodes=None
+    if os.path.exists(CONF.NODE_FILE):
+        with open(CONF.NODE_FILE) as f:
+            nodes=json.load(f)
+
+    cache=None
+    if os.path.exists(CONF.CACHE_FILE):
+        with open(CONF.CACHE_FILE) as f:
+            cache=json.load(f)
+
+    # Node 
+    print("Node count: ",end="")
+    print("NA") if nodes==None else print(len(nodes))
+
+    # Cache
+    print("Last node scan: ",end="")
+    if cache!=None and "last_scan" in CONF["cache"]:
+        print(CONF["cache"]["last_scan"])