From a677d1aab1c72033bae06aded688cab830f54c21 Mon Sep 17 00:00:00 2001
From: Jonas Hoersch <jonas@chaoflow.net>
Date: Wed, 4 Dec 2013 16:41:58 +0100
Subject: [PATCH 1/2] add --help-all meta-switch for recursive help

---
 plumbum/cli/application.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/plumbum/cli/application.py b/plumbum/cli/application.py
index 9d0677125..6b4c480f4 100644
--- a/plumbum/cli/application.py
+++ b/plumbum/cli/application.py
@@ -11,6 +11,8 @@
 
 class ShowHelp(SwitchError):
     pass
+class ShowHelpAll(SwitchError):
+    pass
 class ShowVersion(SwitchError):
     pass
 
@@ -274,6 +276,8 @@ def _parse_args(self, argv):
     def _validate_args(self, swfuncs, tailargs):
         if six.get_method_function(self.help) in swfuncs:
             raise ShowHelp()
+        if six.get_method_function(self.helpall) in swfuncs:
+            raise ShowHelpAll()
         if six.get_method_function(self.version) in swfuncs:
             raise ShowVersion()
 
@@ -334,6 +338,8 @@ def run(cls, argv = sys.argv, exit = True):  # @ReservedAssignment
             ordered, tailargs = inst._validate_args(swfuncs, tailargs)
         except ShowHelp:
             inst.help()
+        except ShowHelpAll:
+            inst.helpall()
         except ShowVersion:
             inst.version()
         except SwitchError:
@@ -383,6 +389,20 @@ def cleanup(self, retcode):
         
         :param retcode: the return code of ``main()``
         """
+    @switch(["--help-all"], overridable = True, group = "Meta-switches")
+    def helpall(self):
+        """Prints the help messages of all subcommands and quits"""
+        self.help()
+        print "\n"
+
+        if self._subcommands:
+            for name, subcls in sorted(self._subcommands.items()):
+                subapp = (subcls.get())("%s %s" % (self.PROGNAME, name))
+                subapp.parent = self
+                for si in subapp._switches_by_func.values():
+                    if si.group == "Meta-switches":
+                        si.group = "Hidden-switches"
+                subapp.helpall()
 
     @switch(["-h", "--help"], overridable = True, group = "Meta-switches")
     def help(self):  # @ReservedAssignment

From 5251977148f3dd3489c7dcb6a3c78c66743c3436 Mon Sep 17 00:00:00 2001
From: Florian Friesdorf <flo@chaoflow.net>
Date: Mon, 9 Jun 2014 12:00:24 +0200
Subject: [PATCH 2/2] cosmetical changes to --help-all

---
 plumbum/cli/application.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/plumbum/cli/application.py b/plumbum/cli/application.py
index 6b4c480f4..04e8e0ab3 100644
--- a/plumbum/cli/application.py
+++ b/plumbum/cli/application.py
@@ -389,11 +389,12 @@ def cleanup(self, retcode):
         
         :param retcode: the return code of ``main()``
         """
+
     @switch(["--help-all"], overridable = True, group = "Meta-switches")
     def helpall(self):
-        """Prints the help messages of all subcommands and quits"""
+        """Print help messages of all subcommands and quit"""
         self.help()
-        print "\n"
+        print("")
 
         if self._subcommands:
             for name, subcls in sorted(self._subcommands.items()):