bitbake: bitbake-setup: add support for skipping a fragment selection

In autobuilder testing a use case arised where
- the available choices in configuration file for choosing a machine are incomplete
- putting every possible machine choice into that configuration is undesirable/not possible
- autobuilder code can write a machine selection into the bitbake config
after the fact.

So this --skip-selection option is intended for advanced users that know what they're doing
and is generally not recommended as it requires manually tweaking the bitbake config to
make it usable.

(Bitbake rev: 8cb2372bdad381179969d2ecbba7decaf03a7c5f)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/bin/bitbake-setup

@@ -339,9 +339,12 @@ def choose_config(configs, non_interactive):
     config_n = int_input([i[0] for i in config_list])
     return config_list[config_n][1]
 
-def choose_fragments(possibilities, parameters, non_interactive):
+def choose_fragments(possibilities, parameters, non_interactive, skip_selection):
     choices = {}
     for k,v in possibilities.items():
+        if skip_selection and k in skip_selection:
+            print("Skipping a selection of {}, as requested on command line. The resulting bitbake configuration may require further manual adjustments.".format(k))
+            continue
         choice = [o for o in v["options"] if o in parameters]
         if len(choice) > 1:
             raise Exception("Options specified on command line do not allow a single selection from possibilities {}, please remove one or more from {}".format(v["options"], parameters))
@@ -395,9 +398,10 @@ def obtain_config(settings, args, source_overrides, d):
         upstream_config = {'type':'registry','registry':settings["default"]["registry"],'name':config_id,'data':json.load(open(get_registry_config(registry_path,config_id)))}
 
     upstream_config['bitbake-config'] = choose_bitbake_config(upstream_config['data']['bitbake-setup']['configurations'], config_parameters, args.non_interactive)
-    upstream_config['bitbake-config']['oe-fragment-choices'] = choose_fragments(upstream_config['bitbake-config'].get('oe-fragments-one-of',{}), config_parameters[1:], args.non_interactive)
+    upstream_config['bitbake-config']['oe-fragment-choices'] = choose_fragments(upstream_config['bitbake-config'].get('oe-fragments-one-of',{}), config_parameters[1:], args.non_interactive, args.skip_selection)
     upstream_config['non-interactive-cmdline-options'] = [config_id, upstream_config['bitbake-config']['name']] + sorted(upstream_config['bitbake-config']['oe-fragment-choices'].values())
     upstream_config['source-overrides'] = source_overrides
+    upstream_config['skip-selection'] = args.skip_selection
     return upstream_config
 
 def init_config(settings, args, d):
@@ -492,6 +496,7 @@ def build_status(settings, args, d, update=False):
 
     args.config = current_upstream_config['non-interactive-cmdline-options']
     args.non_interactive = True
+    args.skip_selection = current_upstream_config['skip-selection']
     source_overrides = current_upstream_config["source-overrides"]
     new_upstream_config = obtain_config(settings, args, source_overrides, d)
 
@@ -778,6 +783,7 @@ def main():
     parser_init.add_argument('--non-interactive', action='store_true', help='Do not ask to interactively choose from available options; if bitbake-setup cannot make a decision it will stop with a failure.')
     parser_init.add_argument('--source-overrides', action='store', help='Override sources information (repositories/revisions) with values from a local json file.')
     parser_init.add_argument('--build-dir-name', action='store', help='A custom build directory name under the top directory.')
+    parser_init.add_argument('--skip-selection', action='append', help='Do not select and set an option/fragment from available choices; the resulting bitbake configuration may be incomplete.')
     parser_init.set_defaults(func=init_config)
 
     parser_status = subparsers.add_parser('status', help='Check if the build needs to be synchronized with configuration')