feat(tt_tool): cell/category definitions for gf180mcuD

Enables the --print-cell-summary and --print-cell-category commands for gf projects

tech/gf180mcuD/gf180mcu_cell_defs.py

@@ -0,0 +1,49 @@
+# Create a JSON file with cell definitions from the gf180mcu_fd_sc_mcu7t5v0 standard cell library.
+# To run this script, first clone the standard cell library by running:
+#
+#     git clone --depth 1 https://github.com/google/globalfoundries-pdk-libs-gf180mcu_fd_sc_mcu7t5v0 gf180mcu_fd_sc_mcu7t5v0
+
+import glob
+import json
+import os
+from typing import Dict, List, TypedDict
+
+
+class GF180Cell(TypedDict):
+    description: str
+    file_prefix: str
+    library: str
+    name: str
+    parameters: List[str]
+    ports: List[List[str]]  # kind, name, direction, description
+    type: str
+    verilog_name: str
+    """
+    Each variant is a different drive strength (e.g. _1, _2, _4, etc.).
+    Cells with a single drive strength have the empty string as variant.
+    """
+    variants: List[str]
+
+
+def create_cell_defs():
+    json_files = glob.glob("gf180mcu_fd_sc_mcu7t5v0/cells/*/definition.json")
+    definitions: Dict[str, GF180Cell] = {}
+    for json_file in json_files:
+        with open(json_file) as fh:
+            definition: GF180Cell = json.load(fh)
+            definitions[definition["name"]] = definition
+            variants = []
+            for item in os.listdir(os.path.dirname(json_file)):
+                if item.startswith(definition["file_prefix"]) and item.endswith(".gds"):
+                    variants.append(item[len(definition["file_prefix"]) : -4])
+            variants.sort()
+            definition["variants"] = variants
+            print(definition["name"], variants)
+
+    script_dir = os.path.dirname(os.path.realpath(__file__))
+    with open(f"{script_dir}/cells.json", "w") as fh:
+        json.dump(definitions, fh, indent=2)
+
+
+if __name__ == "__main__":
+    create_cell_defs()