bitbake cooker/ui: handle cmd line parsing result by individual UI.

Changed the return result of "getCmdLineAction" to a dictionary
{'action', 'msg'} to allow the individual UI decide how to handle the
cmd line parsing result.

(Bitbake rev: 521909d1350a415d19516aa1710041e30950c7cc)

Signed-off-by: Lianhao Lu <lianhao.lu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/depexp.py

@@ -199,10 +199,13 @@ class gtkthread(threading.Thread):
 def main(server, eventHandler):
     try:
         cmdline = server.runCommand(["getCmdLineAction"])
-        if not cmdline or cmdline[0] != "generateDotGraph":
+        if cmdline and not cmdline['action']:
+            print(cmdline['msg'])
+            return
+        elif not cmdline or (cmdline['action'] and cmdline['action'][0] != "generateDotGraph"):
             print("This UI is only compatible with the -g option")
             return
-        ret = server.runCommand(["generateDepTreeEvent", cmdline[1], cmdline[2]])
+        ret = server.runCommand(["generateDepTreeEvent", cmdline['action'][1], cmdline['action'][2]])
         if ret != True:
             print("Couldn't run command! %s" % ret)
             return

bitbake/lib/bb/ui/goggle.py

@@ -82,8 +82,12 @@ def main (server, eventHandler):
     try:
         cmdline = server.runCommand(["getCmdLineAction"])
         if not cmdline:
+            print("Nothing to do.  Use 'bitbake world' to build everything, or run 'bitbake --help' for usage information.")
             return 1
-        ret = server.runCommand(cmdline)
+        elif not cmdline['action']:
+            print(cmdline['msg'])
+            return 1
+        ret = server.runCommand(cmdline['action'])
         if ret != True:
             print("Couldn't get default commandline! %s" % ret)
             return 1

bitbake/lib/bb/ui/knotty.py

@@ -80,8 +80,12 @@ def main(server, eventHandler):
     try:
         cmdline = server.runCommand(["getCmdLineAction"])
         if not cmdline:
+            print("Nothing to do.  Use 'bitbake world' to build everything, or run 'bitbake --help' for usage information.")
             return 1
-        ret = server.runCommand(cmdline)
+        elif not cmdline['action']:
+            print(cmdline['msg'])
+            return 1
+        ret = server.runCommand(cmdline['action'])
         if ret != True:
             print("Couldn't get default commandline! %s" % ret)
             return 1

bitbake/lib/bb/ui/ncurses.py

@@ -232,8 +232,12 @@ class NCursesUI:
         try:
             cmdline = server.runCommand(["getCmdLineAction"])
             if not cmdline:
+                print("Nothing to do.  Use 'bitbake world' to build everything, or run 'bitbake --help' for usage information.")
                 return
-            ret = server.runCommand(cmdline)
+            elif not cmdline['action']:
+                print(cmdline['msg'])
+                return
+            ret = server.runCommand(cmdline['action'])
             if ret != True:
                 print("Couldn't get default commandlind! %s" % ret)
                 return