add cli neps with command run and init

neps/utils/cli.py

@@ -0,0 +1,82 @@
+import argparse
+import os
+
+import neps
+
+
+def init_config(args):
+    # Define the paths for the configuration files
+    config_path = "config.yaml"
+    search_space_path = "search_space.yaml"
+
+    # Check if 'config.yaml' exists to avoid overwriting
+    if not os.path.exists(config_path):
+        with open(config_path, "w") as file:
+            file.write("# Add your NEPS configuration settings here\n")
+        print(f"Generated template: {config_path}")
+    else:
+        print(f"{config_path} already exists. Skipping to avoid overwriting.")
+
+    # Check if 'search_space.yaml' exists to avoid overwriting
+    if not os.path.exists(search_space_path):
+        with open(search_space_path, "w") as file:
+            file.write(
+                """pipeline_space:
+  # Define your search space parameters here
+  # Example:
+  # learning_rate:
+  #   type: float
+  #   lower: 1e-4
+  #   upper: 1e-1
+  #   log: true
+"""
+            )
+        print(f"Generated template: {search_space_path}")
+    else:
+        print(f"{search_space_path} already exists. Skipping to avoid overwriting.")
+
+
+def run_optimization(args):
+    config_path = args.config if args.config else "config.yaml"
+
+    # Check if the config file exists
+    if not os.path.isfile(config_path):
+        print(f"No configuration file found at '{config_path}'.")
+        print("Please create one using 'neps init' or specify the path using '--config'.")
+        return
+
+    print(f"Running optimization using configuration from {config_path}")
+    neps.run(run_args=config_path)
+
+
+def main():
+    parser = argparse.ArgumentParser(description="NePS Command Line Interface")
+    subparsers = parser.add_subparsers(
+        dest="command", help="Available commands: init, run"
+    )
+
+    # Subparser for "init" command
+    parser_init = subparsers.add_parser(
+        "init", help="Generate starter configuration YAML files"
+    )
+    parser_init.set_defaults(func=init_config)
+
+    # Subparser for "run" command
+    parser_run = subparsers.add_parser(
+        "run", help="Run optimization with specified configuration"
+    )
+    parser_run.add_argument(
+        "--config", type=str, help="Path to the configuration YAML file."
+    )
+    parser_run.set_defaults(func=run_optimization)
+
+    args = parser.parse_args()
+
+    if hasattr(args, "func"):
+        args.func(args)
+    else:
+        parser.print_help()
+
+
+if __name__ == "__main__":
+    main()