[gnome-continuous-yocto/gnomeostree-3.28-rocko: 860/8267] scripts: ensure not specifying subcommand shows help text

[Emmanuele Bassi <ebassi src gnome org>]

commit b41b2fa4dd69fdc8946bfa1d2cb4a20b68435ddc
Author: Paul Eggleton <paul eggleton linux intel com>
Date:   Mon Jun 13 16:43:41 2016 +1200

    scripts: ensure not specifying subcommand shows help text
    
    With Python 2, argparse subparsers behaviour in Python 2 was to print
    the usage information if the subparsers argument wasn't specified.
    However, with Python 3.2.3 and later a subparsers argument is not
    required by default, leading to errors when no arguments are specified:
    
      AttributeError: 'Namespace' object has no attribute 'func'
    
    Restore the previous desired behaviour of showing the help text for
    devtool, recipetool and the devtool-stress script by setting
    subparsers.required to True.
    
    (From OE-Core rev: d36fdea1a7f32d97187e0e9e6d701ae8fa304e8f)
    
    Signed-off-by: Paul Eggleton <paul eggleton linux intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 scripts/contrib/devtool-stress.py |    1 +
 scripts/devtool                   |    1 +
 scripts/recipetool                |    1 +
 3 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/scripts/contrib/devtool-stress.py b/scripts/contrib/devtool-stress.py
index 2723491..ab77a2d 100755
--- a/scripts/contrib/devtool-stress.py
+++ b/scripts/contrib/devtool-stress.py
@@ -213,6 +213,7 @@ def main():
     parser.add_argument('-s', '--skip', help='Skip specified recipes (comma-separated without spaces, 
wildcards allowed)', metavar='PNLIST')
     parser.add_argument('-c', '--skip-classes', help='Skip recipes inheriting specified classes 
(comma-separated) - default %(default)s', metavar='CLASSLIST', 
default='native,nativesdk,cross,cross-canadian,image,populate_sdk,meta,packagegroup')
     subparsers = parser.add_subparsers(title='subcommands', metavar='<subcommand>')
+    subparsers.required = True
 
     parser_modify = subparsers.add_parser('modify',
                                           help='Run "devtool modify" followed by a build with bitbake on 
matching recipes',
diff --git a/scripts/devtool b/scripts/devtool
index 63d2ef9..a93a11f 100755
--- a/scripts/devtool
+++ b/scripts/devtool
@@ -301,6 +301,7 @@ def main():
         tinfoil.shutdown()
 
     subparsers = parser.add_subparsers(dest="subparser_name", title='subcommands', metavar='<subcommand>')
+    subparsers.required = True
 
     subparsers.add_subparser_group('sdk', 'SDK maintenance', -2)
     subparsers.add_subparser_group('advanced', 'Advanced', -1)
diff --git a/scripts/recipetool b/scripts/recipetool
index 0e8bffb..17233d4 100755
--- a/scripts/recipetool
+++ b/scripts/recipetool
@@ -60,6 +60,7 @@ def main():
     parser.add_argument('-h', '--help', action='help', default=argparse.SUPPRESS,
                         help='show this help message and exit')
     subparsers = parser.add_subparsers(title='subcommands', metavar='<subcommand>')
+    subparsers.required = True
 
     if global_args.debug:
         logger.setLevel(logging.DEBUG)