[Feature]: Allow listing available key resources such as gpu, region, and backends #2142 (WIP)

Renamed `dstack list gpu` to `dstack gpu`

Author: peterschmidt85

src/dstack/_internal/cli/commands/list.py src/dstack/_internal/cli/commands/gpu.pysrc/dstack/_internal/cli/commands/list.py renamed to src/dstack/_internal/cli/commands/gpu.py

@@ -18,7 +18,7 @@
 from dstack.api.utils import load_profile
 
 
-class ListGpuConfigurator(BaseRunConfigurator):
+class GpuConfigurator(BaseRunConfigurator):
     TYPE = ApplyConfigurationType.TASK
 
     @classmethod
@@ -35,7 +35,7 @@ def register_args(
         )
 
 
-class ListGpuCommand(APIBaseCommand):
+class GpuCommand(APIBaseCommand):
     NAME = "gpu"
     DESCRIPTION = "List available GPUs"
 
@@ -54,13 +54,13 @@ def _register(self):
             dest="format",
             help="Output in JSON format (equivalent to --format json)",
         )
-        ListGpuConfigurator.register_args(self._parser)
+        GpuConfigurator.register_args(self._parser)
 
     def _command(self, args: argparse.Namespace):
         super()._command(args)
         conf = TaskConfiguration(commands=[":"])
 
-        configurator = ListGpuConfigurator(api_client=self.api)
+        configurator = GpuConfigurator(api_client=self.api)
         configurator.apply_args(conf, args, [])
         profile = load_profile(Path.cwd(), profile_name=args.profile)
 
@@ -278,21 +278,3 @@ def th(s: str) -> str:
 
         console.print(props)
         console.print()
-
-
-class ListCommand(APIBaseCommand):
-    NAME = "list"
-    DESCRIPTION = "List various resources"
-
-    def _register(self):
-        super()._register()
-        subparsers = self._parser.add_subparsers(dest="subcommand", help="Available subcommands")
-
-        gpu_parser = subparsers.add_parser("gpu", help="List available GPUs")
-        gpu_cmd = ListGpuCommand(gpu_parser)
-        gpu_cmd._register()
-        gpu_parser.set_defaults(func=gpu_cmd._command)
-
-    def _command(self, args: argparse.Namespace):
-        if not hasattr(args, "subcommand") or args.subcommand is None:
-            self._parser.print_help()

src/dstack/_internal/cli/main.py

@@ -11,8 +11,8 @@
 from dstack._internal.cli.commands.delete import DeleteCommand
 from dstack._internal.cli.commands.fleet import FleetCommand
 from dstack._internal.cli.commands.gateway import GatewayCommand
+from dstack._internal.cli.commands.gpu import GpuCommand
 from dstack._internal.cli.commands.init import InitCommand
-from dstack._internal.cli.commands.list import ListCommand
 from dstack._internal.cli.commands.logs import LogsCommand
 from dstack._internal.cli.commands.metrics import MetricsCommand
 from dstack._internal.cli.commands.offer import OfferCommand
@@ -69,7 +69,7 @@ def main():
     FleetCommand.register(subparsers)
     GatewayCommand.register(subparsers)
     InitCommand.register(subparsers)
-    ListCommand.register(subparsers)
+    GpuCommand.register(subparsers)
     OfferCommand.register(subparsers)
     LogsCommand.register(subparsers)
     MetricsCommand.register(subparsers)