Add -h help flag support to all CLI commands (#185)

Updated each command in the CLI to support the `-h` flag for displaying
usage instructions.

# What does this PR do?
This PR adds support for the -h help flag to all CLI commands. It
enables users to view usage instructions and command options by
appending -h or --help to any command in the CLI. This enhancement
improves the usability of the CLI by providing a consistent and easy way
for users to access command-specific help information. The help flag
functionality is implemented across all commands, ensuring that every
CLI command supports this feature.

## Test Plan
Manual Testing:

Run each CLI command with the -h or --help flag.
Verify that the correct help message is displayed for each command,
including the command options, arguments, and usage instructions.

Signed-off-by: Alina Ryan <aliryan@redhat.com>

Author: alinaryan

src/llama_stack_client/lib/cli/configure.py

@@ -23,6 +23,7 @@ def get_config():
 
 
 @click.command()
+@click.help_option("-h", "--help")
 @click.option("--endpoint", type=str, help="Llama Stack distribution endpoint", default="")
 @click.option("--api-key", type=str, help="Llama Stack distribution API key", default="")
 def configure(endpoint: str | None, api_key: str | None):

src/llama_stack_client/lib/cli/datasets/datasets.py

@@ -10,6 +10,7 @@
 
 
 @click.group()
+@click.help_option("-h", "--help")
 def datasets():
     """Manage datasets."""
 

src/llama_stack_client/lib/cli/datasets/list.py

@@ -12,6 +12,7 @@
 
 
 @click.command("list")
+@click.help_option("-h", "--help")
 @click.pass_context
 @handle_client_errors("list datasets")
 def list_datasets(ctx):

src/llama_stack_client/lib/cli/datasets/register.py

@@ -30,6 +30,7 @@ def data_url_from_file(file_path: str) -> str:
 
 
 @click.command("register")
+@click.help_option("-h", "--help")
 @click.option("--dataset-id", required=True, help="Id of the dataset")
 @click.option("--provider-id", help="Provider ID for the dataset", default=None)
 @click.option("--provider-dataset-id", help="Provider's dataset ID", default=None)

src/llama_stack_client/lib/cli/eval/eval.py

@@ -12,6 +12,7 @@
 
 
 @click.group()
+@click.help_option("-h", "--help")
 def eval():
     """Run evaluation tasks."""
 

src/llama_stack_client/lib/cli/eval/run_benchmark.py

@@ -17,6 +17,7 @@
 
 
 @click.command("run-benchmark")
+@click.help_option("-h", "--help")
 @click.argument("benchmark-ids", nargs=-1, required=True)
 @click.option(
     "--model-id",

src/llama_stack_client/lib/cli/eval/run_scoring.py

@@ -15,6 +15,7 @@
 
 
 @click.command("run-scoring")
+@click.help_option("-h", "--help")
 @click.argument("scoring-function-ids", nargs=-1, required=True)
 @click.option(
     "--dataset-id",

src/llama_stack_client/lib/cli/eval_tasks/eval_tasks.py

@@ -16,11 +16,13 @@
 
 
 @click.group()
+@click.help_option("-h", "--help")
 def eval_tasks():
     """Manage evaluation tasks."""
 
 
 @eval_tasks.command()
+@click.help_option("-h", "--help")
 @click.option("--eval-task-id", required=True, help="ID of the eval task")
 @click.option("--dataset-id", required=True, help="ID of the dataset to evaluate")
 @click.option("--scoring-functions", required=True, multiple=True, help="Scoring functions to use for evaluation")

src/llama_stack_client/lib/cli/eval_tasks/list.py

@@ -12,6 +12,7 @@
 
 
 @click.command("list")
+@click.help_option("-h", "--help")
 @click.pass_context
 @handle_client_errors("list eval tasks")
 def list_eval_tasks(ctx):

src/llama_stack_client/lib/cli/inference/inference.py

@@ -15,11 +15,13 @@
 
 
 @click.group()
+@click.help_option("-h", "--help")
 def inference():
     """Inference (chat)."""
 
 
 @click.command("chat-completion")
+@click.help_option("-h", "--help")
 @click.option("--message", help="Message")
 @click.option("--stream", is_flag=True, help="Streaming", default=False)
 @click.option("--session", is_flag=True, help="Start a Chat Session", default=False)