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wic: Add dummy subcommand and usage strings 

In order to reuse the existing subcommand infrastructure to display
various general-purpose help topics, add a dummy 'help_topic'
subcommand and usage string.  This allows users to invoke general help
topics by the natural form 'wic help <topic>' even though topic
doesn't correspond to a real subcommand.

(From OE-Core rev: d03f39a99058c2393d7b50ac4909bdaa84b09920)

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Tom Zanussi 2014-07-07 15:30:12 -05:00 committed by Richard Purdie
parent b5dceca436
commit f2ab619681
1 changed files with 13 additions and 0 deletions
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13
scripts/wic
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@ -226,6 +226,19 @@ def wic_list_subcommand(args, usage_str):
sys.exit(1)
def wic_help_topic_subcommand(args, usage_str):
"""
Command-line handling for help-only 'subcommands'. This is
essentially a dummy command that doesn nothing but allow users to
use the existing subcommand infrastructure to display help on a
particular topic not attached to any particular subcommand.
"""
pass
wic_help_topic_usage = """
"""
subcommands = {
"create": [wic_create_subcommand,
wic_create_usage,