Add dump_dummy script (#25)

* Add `dump_dummy` script

* type error

scripts/dump_dummy.py

@@ -0,0 +1,57 @@
+# ruff: noqa: E402
+"""
+This is a tool for dumping the state dict of a dummy model.
+
+Purpose:
+When adding/testing model detection or model parameter detection code,
+it is useful to see the effects a single parameter has on the state dict of a
+model. Since there aren't pretrained models for every possible parameter
+configuration, this script can be used to generate a dummy model with the given
+parameters.
+
+Usage:
+To use this script, you need to edit the `create_dummy` function below. Edit
+the function to make it return a model with your desired parameters. As always,
+VSCode is the recommended IDE for this task.
+
+After you edited the function, run this script, and it will dump the state dict
+of the dummy model to `dump.yml`.
+
+    python scripts/dump_dummy.py
+
+For more detail on the dump itself, see the docs of `dump_state_dict.py`.
+"""
+
+
+import inspect
+import os
+import sys
+from textwrap import dedent
+
+import torch
+
+# This hack is necessary to make our module import
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../src")))
+
+from dump_state_dict import dump
+
+from spandrel.architectures import SCUNet
+
+
+def create_dummy() -> torch.nn.Module:
+    """Edit this function"""
+    return SCUNet.SCUNet()
+
+
+if __name__ == "__main__":
+    net = create_dummy()
+    state = net.state_dict()
+
+    # get source code expression of network
+    source = inspect.getsource(create_dummy)
+    source = "\n".join(source.split("\n")[1:])  # remove "def create_dummy():
+    source = dedent(source)
+    if source.startswith("return "):
+        source = source[7:]
+
+    dump(state, source)

scripts/dump_state_dict.py

@@ -44,11 +44,11 @@
 import os
 import sys
 from dataclasses import dataclass
-from typing import Dict, Generic, Iterable, TypeVar
+from typing import Any, Dict, Generic, Iterable, TypeVar
 
 from torch import Tensor
 
-# I fucking hate python. This hack is necessary to make our module import
+# This hack is necessary to make our module import
 sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "../src")))
 
 from spandrel import ModelLoader  # noqa: E402
@@ -181,12 +181,18 @@ def dump(s: Fork[State] | State, level: int = 0):
     return lines
 
 
-file = sys.argv[1]
-print(f"Input file: {file}")
-state = load_state(file)
+def dump(state: dict[str, Any], comment: str, file: str = "dump.yml"):
+    with open(file, "w") as f:
+        comment = "\n".join("# " + s for s in comment.splitlines())
+        f.write(f"{comment}\n")
+        f.write("\n".join(dump_lines(state)))
 
-with open("dump.yml", "w") as f:
-    f.write(f"# {file}\n")
-    f.write("\n".join(dump_lines(state)))
+    print(f"Dumped {len(state)} keys to {file}")
 
-print(f"Dumped {len(state)} keys to dump.yml")
+
+if __name__ == "__main__":
+    file = sys.argv[1]
+    print(f"Input file: {file}")
+    state = load_state(file)
+
+    dump(state, file)