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| author |   Paul Eggleton <paul.eggleton@linux.intel.com> | 2015-12-22 17:02:54 +1300 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2015-12-22 16:44:02 +0000 |
| commit | d62fe7c9bc2df6a4464440a3cae0539074bf99aa (patch) | |
| tree | 2e03cf6a2b6ad3d1eb2d66a52b6f0109312a7974 /scripts/devtool | |
| parent | 82423662e297137657d67d272276a823cf3f3d4e (diff) | |
| download | openembedded-core-d62fe7c9bc2df6a4464440a3cae0539074bf99aa.tar.gz | |
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 <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'scripts/devtool')
| -rwxr-xr-x | scripts/devtool | 7 |
1 files changed, 4 insertions, 3 deletions
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 <subcommand> --help to get help on a specific command") + parser = argparse_oe.ArgumentParser(description="OpenEmbedded development tool", + add_help=False, + epilog="Use %(prog)s <subcommand> --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') |