feat: add -h help option to all commands

CHANGELOG-nightly.md

@@ -8,6 +8,7 @@ will be backported to the master branch at every major release.
 When backporting changes to master, we should keep only the entries that correspond to user-
 facing changes.
 -->
+- [Improvement] Add the `-h` help option to all commands and subcommands. Previously, we could only use `--help`, which is quite long for lazy fingers. (by @regisb)
 - 💥[Feature] Add an extensible `local/dev/k8s do ...` command to trigger custom job commands. These commands are used to run a series of bash scripts in designated containers. Any plugin can add custom jobs thanks to the `CLI_DO_COMMANDS` filter. This causes the following breaking changes:
     - The "init", "createuser", "settheme", "importdemocourse" commands were all migrated to this new interface. For instance,  `tutor local init` was replaced by `tutor local do init`.
     - Plugin developers are encouraged to replace calls to the `COMMANDS_INIT` and `COMMANDS_PRE_INIT` filters by `CLI_DO_INIT_TASKS`.

tutor/commands/cli.py

@@ -117,6 +117,7 @@ def cli(context: click.Context, root: str, show_help: bool) -> None:
             "/install/linux/linux-postinstall/#manage-docker-as-a-non-root-user)"
         )
     context.obj = Context(root)
+    context.help_option_names = ["-h", "--help"]
     if context.invoked_subcommand is None or show_help:
         click.echo(context.get_help())
 

tutor/commands/compose.py

@@ -306,6 +306,7 @@ def do(
     """
     Run a custom job in the right container(s).
     """
+
     @hooks.Actions.DO_JOB.add()
     def _mount_tmp_volumes(_job_name: str, *_args: t.Any, **_kwargs: t.Any) -> None:
         """

tutor/commands/jobs.py

@@ -263,8 +263,7 @@ P = ParamSpec("P")
 
 
 def _patch_callback(
-    job_name: str,
-    func: t.Callable[P, t.Iterable[t.Tuple[str, str]]]
+    job_name: str, func: t.Callable[P, t.Iterable[t.Tuple[str, str]]]
 ) -> t.Callable[P, None]:
     """
     Modify a subcommand callback function such that its results are processed by `do_callback`.

tutor/commands/k8s.py

@@ -369,6 +369,7 @@ def do(context: K8sContext) -> None:
     We make sure that some essential containers (databases, proxy) are up before we
     launch the jobs.
     """
+
     @hooks.Actions.DO_JOB.add()
     def _start_base_deployments(_job_name: str, *_args: Any, **_kwargs: Any) -> None:
         """