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.

(From OE-Core rev: d62fe7c9bc2df6a4464440a3cae0539074bf99aa)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/scripts/send-error-report b/scripts/send-error-report
index 1a1b96580d..a29feff325 100755
--- a/scripts/send-error-report
+++ b/scripts/send-error-report
@@ -15,6 +15,10 @@ import subprocess
 import argparse
 import logging
 
+scripts_lib_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'lib')
+sys.path.insert(0, scripts_lib_path)
+import argparse_oe
+
 version = "0.3"
 
 log = logging.getLogger("send-error-report")
@@ -143,7 +147,7 @@ def send_data(data, args):
 
 
 if __name__ == '__main__':
-    arg_parse = argparse.ArgumentParser(description="This scripts will send an error report to your specified error-report-web server.")
+    arg_parse = argparse_oe.ArgumentParser(description="This scripts will send an error report to your specified error-report-web server.")
 
     arg_parse.add_argument("error_file",
                            help="Generated error report file location",