From d62fe7c9bc2df6a4464440a3cae0539074bf99aa Mon Sep 17 00:00:00 2001 From: Paul Eggleton Date: Tue, 22 Dec 2015 17:02:54 +1300 Subject: scripts: print usage in argparse-using scripts when a command-line error occurs For scripts that use Python's standard argparse module to parse command-line arguments, create a subclass which will show the usage the usage information when a command-line parsing error occurs. The most common case would be when the script is run with no arguments; at least then the user immediately gets to see what arguments they might need to pass instead of just an error message. Signed-off-by: Paul Eggleton Signed-off-by: Richard Purdie --- scripts/devtool | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'scripts/devtool') diff --git a/scripts/devtool b/scripts/devtool index 9d3287c6d3..955495ea33 100755 --- a/scripts/devtool +++ b/scripts/devtool @@ -37,6 +37,7 @@ lib_path = scripts_path + '/lib' sys.path = sys.path + [lib_path] from devtool import DevtoolError, setup_tinfoil import scriptutils +import argparse_oe logger = scriptutils.logger_create('devtool') plugins = [] @@ -185,9 +186,9 @@ def main(): break pth = os.path.dirname(pth) - parser = argparse.ArgumentParser(description="OpenEmbedded development tool", - add_help=False, - epilog="Use %(prog)s --help to get help on a specific command") + parser = argparse_oe.ArgumentParser(description="OpenEmbedded development tool", + add_help=False, + epilog="Use %(prog)s --help to get help on a specific command") parser.add_argument('--basepath', help='Base directory of SDK / build directory') parser.add_argument('--bbpath', help='Explicitly specify the BBPATH, rather than getting it from the metadata') parser.add_argument('-d', '--debug', help='Enable debug output', action='store_true') -- cgit 1.2.3-korg