X-Git-Url: https://wannabe.guru.org/gitweb/?a=blobdiff_plain;f=config.py;h=dc0042d5b664228a67a04925435b2e9f83729386;hb=e8671a716da868332d3ac1f66d4d2f7f8d33fc28;hp=ea5f68a296b66ea8946a61e6f85fe1891a0b33a8;hpb=5f75cf834725ac26b289cc5f157af0cb71cd5f0e;p=python_utils.git

diff --git a/config.py b/config.py
index ea5f68a..dc0042d 100644
--- a/config.py
+++ b/config.py
@@ -133,6 +133,16 @@ group.add_argument(
     default=None,
     help='Populate config file compatible with --config_loadfile to save global config for later use.',
 )
+group.add_argument(
+    '--config_rejects_unrecognized_arguments',
+    default=False,
+    action='store_true',
+    help=(
+        'If present, config will raise an exception if it doesn\'t recognize an argument.  The ' +
+        'default behavior is to ignore this so as to allow interoperability with programs that ' +
+        'want to use their own argparse calls to parse their own, separate commandline args.'
+    )
+)
 
 
 def is_flag_already_in_argv(var: str):
@@ -249,6 +259,12 @@ def parse(entry_module: Optional[str]) -> Dict[str, Any]:
     # future argument parsers.  For example, unittest_main in python
     # has some of its own flags.  If we didn't recognize it, maybe
     # someone else will.
+    if len(unknown) > 0:
+        if config['config_rejects_unrecognized_arguments']:
+            raise Exception(
+                f'Encountered unrecognized config argument(s) {unknown} with --config_rejects_unrecognized_arguments enabled; halting.'
+            )
+        saved_messages.append(f'Config encountered unrecognized commandline arguments: {unknown}')
     sys.argv = sys.argv[:1] + unknown
 
     # Check for savefile and populate it if requested.