Support cesm workflow

helper_scripts/generate_cupid_config_for_cesm_case.py

@@ -0,0 +1,113 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import argparse
+import os
+import sys
+
+import yaml
+
+
+def _parse_args():
+    """Parse command line arguments"""
+
+    parser = argparse.ArgumentParser(
+        description="Generate config.yml based on an existing CUPID example",
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
+    )
+
+    # Command line argument for location of CESM source code (required)
+    parser.add_argument(
+        "--cesm-root",
+        action="store",
+        dest="cesm_root",
+        required=True,
+        help="Location of CESM source code",
+    )
+
+    # Command line argument for CUPiD example from which to get config.yml
+    parser.add_argument(
+        "--cupid-example",
+        action="store",
+        dest="cupid_example",
+        default="key_metrics",
+        help="CUPiD example to use as template for config.yml",
+    )
+
+    # Command line argument location of CESM case directory
+    parser.add_argument(
+        "--case-root",
+        action="store",
+        dest="case_root",
+        default=os.getcwd(),
+        help="CESM case directory",
+    )
+
+    return parser.parse_args()
+
+
+def generate_cupid_config(case_root, cesm_root, cupid_example):
+    sys.path.append(os.path.join(cesm_root, "cime"))
+    from CIME.case import Case
+
+    # Is cupid_example a valid value?
+    cupid_root = os.path.join(cesm_root, "tools", "CUPiD")
+    cupid_examples = os.path.join(cupid_root, "examples")
+    valid_examples = [
+        example
+        for example in next(os.walk(cupid_examples))[1]
+        if example not in ["ilamb", "nblibrary"]
+    ]
+    if cupid_example not in valid_examples:
+        error_msg = f"argument --cupid-example: invalid choice '{cupid_example}'"
+        raise KeyError(
+            f"{error_msg} (choose from subdirectories of {cupid_examples}: {valid_examples})",
+        )
+
+    with Case(case_root, read_only=False, record=True) as cesm_case:
+        case = cesm_case.get_value("CASE")
+        dout_s_root = cesm_case.get_value("DOUT_S_ROOT")
+
+    # Additional options we need to get from env_cupid.xml
+    nyears = 1
+    start_date = "0001-01-01"
+    end_date = f"{nyears+1:04d}-01-01"
+    climo_nyears = 1
+    base_case_output_dir = "/glade/campaign/cesm/development/cross-wg/diagnostic_framework/CESM_output_for_testing"
+    base_nyears = 100
+    base_end_date = f"{base_nyears+1:04d}-01-01"
+    base_climo_nyears = 40
+
+    with open(os.path.join(cupid_root, "examples", cupid_example, "config.yml")) as f:
+        my_dict = yaml.safe_load(f)
+
+    my_dict["global_params"]["case_name"] = case
+    my_dict["global_params"]["start_date"] = start_date
+    my_dict["global_params"]["end_date"] = end_date
+    my_dict["global_params"]["climo_nyears"] = climo_nyears
+    my_dict["global_params"]["base_case_output_dir"] = base_case_output_dir
+    my_dict["global_params"]["base_end_date"] = base_end_date
+    my_dict["global_params"]["base_climo_nyears"] = base_climo_nyears
+    my_dict["timeseries"]["case_name"] = case
+    my_dict["timeseries"]["atm"]["end_years"] = [nyears, base_nyears]
+
+    # replace with environment variable
+    my_dict["global_params"]["CESM_output_dir"] = dout_s_root
+
+    # create new file, make it writeable
+    with open("config.yml", "w") as f:
+        # Header of file is a comment logging provenance
+        f.write(f"# This file has been auto-generated for use with {case}\n")
+        f.write(f"# It is based off of examples/{cupid_example}/config.yml\n")
+        f.write("# Arguments used:\n")
+        f.write(f"# cesm_root = {cesm_root}\n")
+        f.write(f"# case_root = {case_root}\n")
+        f.write(f"# cupid_example= {cupid_example}\n")
+
+        # enter in each element of the dictionary into the new file
+        yaml.dump(my_dict, f, sort_keys=False)
+
+
+if __name__ == "__main__":
+    args = vars(_parse_args())
+    generate_cupid_config(**args)