Add --json flag to view command

lib/pavilion/commands/view.py

@@ -2,6 +2,7 @@
 
 import errno
 import pprint
+import json
 
 from pavilion import output
 from pavilion import cmd_utils
@@ -53,6 +54,9 @@ def _setup_arguments(self, parser):
             '-f', '--file', dest='files', action='append', default=[],
             help='Add tests listed in the given file, as per the "pav run" command',
         )
+        parser.add_argument(
+            '-j', '--json', action='store_true',
+            help='Output the resolved test config as JSON')
         parser.add_argument(
             'tests', action='store', nargs='*',
             help='The name of the test to view. Should be in the format '
@@ -96,5 +100,9 @@ def run(self, pav_cfg, args):
             return errno.EINVAL
 
         configs = {pt.config['name']: pt.config for pt in proto_tests}
-        pprint.pprint(configs, stream=self.outfile)  # ext-print: ignore
+
+        if args.json:
+            json.dump(configs, self.outfile, indent=2)
+        else:
+            pprint.pprint(configs, stream=self.outfile)  # ext-print: ignore
         return 0

test/tests/view_cmd_tests.py

@@ -1,4 +1,6 @@
 """Exercise the view command."""
+import json
+
 from pavilion import arguments
 from pavilion import commands
 from pavilion.unittest import PavTestCase
@@ -18,3 +20,31 @@ def test_view(self):
         ])
 
         self.assertEqual(view_cmd.run(self.pav_cfg, args), 0)
+
+    def test_view_json(self):
+        """Test that the --json flag outputs valid JSON."""
+
+        view_cmd = commands.get_command('view')
+        view_cmd.silence()
+
+        arg_parser = arguments.get_parser()
+
+        args = arg_parser.parse_args([
+            'view', '--json', 'hello_world'
+        ])
+
+        self.assertEqual(view_cmd.run(self.pav_cfg, args), 0)
+
+        # Verify output is valid JSON
+        output_str = view_cmd.outfile.getvalue()
+
+        try:
+            json_obj = json.loads(output_str)
+        except json.JSONDecodeError as e:
+            self.fail(f"Output is not valid JSON: {e}")
+
+        print(json_obj)
+
+        # Ensure it's a dict with expected structure (non-empty)
+        self.assertIsInstance(json_obj, dict)
+        self.assertTrue(json_obj != {})