Fixed run command to allow passing args to the called python script

osxphotos/cli/install_uninstall_run.py

@@ -6,6 +6,25 @@ from runpy import run_module, run_path
 import click
 
 
+class RunCommand(click.Command):
+    """Custom command that ignores unknown options so options can be passed to the run script"""
+
+    def make_parser(self, ctx):
+        """Creates the underlying option parser for this command."""
+        parser = click.OptionParser(ctx)
+        parser.ignore_unknown_options = True
+        for param in self.get_params(ctx):
+            param.add_to_parser(parser, ctx)
+        return parser
+
+    def get_usage(self, ctx):
+        """Returns the help for this command;
+        normally it would just return the usage string
+        but in order to pass --help on to the run script,
+        help for the run command is handled here"""
+        return self.get_help(ctx)
+
+
 @click.command()
 @click.argument("packages", nargs=-1, required=True)
 @click.option(
@@ -30,8 +49,15 @@ def uninstall(packages, yes):
     run_module("pip", run_name="__main__")
 
 
-@click.command(name="run")
+@click.command(name="run", cls=RunCommand)
+# help command passed just to keep click from intercepting help
+# and allowing --help to be passed to the script being run
+@click.option("--help", "-h", is_flag=True, help="Show this message and exit")
 @click.argument("python_file", nargs=1, type=click.Path(exists=True))
-def run(python_file):
-    """Run a python file using same environment as osxphotos"""
+@click.argument("args", metavar="ARGS", nargs=-1)
+def run(python_file, help, args):
+    """Run a python file using same environment as osxphotos.
+    Any args are made available to the python file."""
+    # drop first two arguments, which are the osxphotos script and run command
+    sys.argv = sys.argv[2:]
     run_path(python_file, run_name="__main__")