Tools: Improve idf.py error message when the argument value collides with the environment variable
Closes
@@ -527,9 +527,14 @@ def init_cli(verbose_output: List=None) -> Any:
default = () if option.multiple else option.default
if global_value != default and local_value != default and global_value != local_value:
- raise FatalError(
- 'Option "%s" provided for "%s" is already defined to a different value. '
- 'This option can appear at most once in the command line.' % (key, task.name))
+ if hasattr(option, 'envvar') and option.envvar and os.getenv(option.envvar) != default:
+ msg = (f'This option cannot be set in command line if the {option.envvar} '
+ 'environment variable is set to a different value.')
+ else:
+ msg = 'This option can appear at most once in the command line.'
+
+ raise FatalError(f'Option "{key}" provided for "{task.name}" is already defined to '
+ f'a different value. {msg}')
if local_value != default:
global_args[key] = local_value
