feat: add experimental IHP support

config_utils.py

@@ -2,6 +2,7 @@ import json
 import logging
 import os
 import re
+import subprocess
 import tkinter
 from collections.abc import Iterable
 
@@ -42,13 +43,43 @@ def read_tcl_config(file: str, design_dir: str | None = None):
 
 
 def read_json_config(file: str):
-    return json.load(open(file))
+    config = json.load(open(file))
+    config.pop("//", None)
+    return config
 
 
 def read_yaml_config(file: str):
     return yaml.safe_load(open(file))
 
 
+def read_mk_config(file: str, design_dir: str | None = None):
+    logging.warning(
+        "Reading Makefile configuration files is an experimental feature and could be removed"
+    )
+    env_pre = {} if design_dir is None else {"DESIGN_HOME": design_dir}
+    mk_cg = "all:\n\t@env"
+    mk_tg = f"-include {file}\n{mk_cg}"
+    env_cg = subprocess.run(
+        "make -f -",
+        shell=True,
+        env=env_pre,
+        input=mk_cg,
+        capture_output=True,
+        text=True,
+    ).stdout.strip()
+    env_tg = subprocess.run(
+        "make -f -",
+        shell=True,
+        env=env_pre,
+        input=mk_tg,
+        capture_output=True,
+        text=True,
+    ).stdout.strip()
+    env_diff = set(env_tg.split("\n")) - set(env_cg.split("\n"))
+    config = dict(i.split("=", 1) for i in env_diff)
+    return config
+
+
 def read_config(basename: str, formats: Iterable[str], design_dir: str | None = None):
     for fmt in formats:
         file = f"{basename}.{fmt}"
@@ -59,6 +90,8 @@ def read_config(basename: str, formats: Iterable[str], design_dir: str | None =
                 return read_json_config(file)
             elif fmt == "yaml":
                 return read_yaml_config(file)
+            elif fmt == "mk":
+                return read_mk_config(file)
             else:
                 raise ConfigFileError(f"Unexpected configuration file format: {fmt}")
     raise ConfigFileError(
@@ -89,6 +122,16 @@ def write_yaml_config(config: dict, file: str):
         yaml.safe_dump(config, f, default_flow_style=False, sort_keys=False)
 
 
+def write_mk_config(config: dict, file: str):
+    with open(file, "w") as f:
+        for key, value in config.items():
+            if type(value) in (list, tuple):
+                value = " ".join(value)
+            if type(value) == str:
+                value = value.replace("dir::", "$(DESIGN_HOME)/")
+            print(f"export {key} = {value}", file=f)
+
+
 def write_config(config: dict, basename: str, formats: Iterable[str]):
     for fmt in formats:
         file = f"{basename}.{fmt}"
@@ -98,5 +141,7 @@ def write_config(config: dict, basename: str, formats: Iterable[str]):
             write_json_config(config, file)
         elif fmt == "yaml":
             write_yaml_config(config, file)
+        elif fmt == "mk":
+            write_mk_config(config, file)
         else:
             raise ConfigFileError("Unexpected configuration file format: {fmt}")