fix: missing git urls when freezing requirements (#22)

Signed-off-by: Frost Ming <me@frostming.com>

nodes/api.py

@@ -11,6 +11,7 @@ import tempfile
 import time
 import uuid
 import zipfile
+from importlib.metadata import Distribution, distributions
 from pathlib import Path
 from typing import Any, Union
 
@@ -25,25 +26,33 @@ from comfy_pack.package import build_bento
 ZPath = Union[Path, zipfile.Path]
 TEMP_FOLDER = Path(__file__).parent.parent / "temp"
 COMFY_PACK_DIR = Path(__file__).parent.parent / "src" / "comfy_pack"
-EXCLUDE_PACKAGES = ["bentoml", "onnxruntime"]  # TODO: standardize this
+EXCLUDE_PACKAGES = ["bentoml", "onnxruntime", "conda"]  # TODO: standardize this
+
+
+def _get_requirement_string(dist: Distribution) -> str:
+    direct_url_text = dist.read_text("direct_url.json")
+    pinned_str = f'{dist.metadata["Name"]}=={dist.version}'
+    if not direct_url_text:
+        return pinned_str
+    direct_url = json.loads(direct_url_text)
+    if url := direct_url.get("url"):
+        if url.startswith("file://"):
+            # we are not able to share local files
+            return pinned_str
+        if vcs_info := direct_url.get("vcs_info"):
+            url = f"{vcs_info['vcs']}+{url}@{vcs_info['commit_id']}"
+        if subdirectory := direct_url.get("subdirectory"):
+            url += f"#subdirectory={subdirectory}"
+        return f"{dist.metadata['Name']} @ {url}"
+    else:
+        return pinned_str
 
 
 async def _write_requirements(path: ZPath, extras: list[str] | None = None) -> None:
     print("Package => Writing requirements.txt")
     with path.joinpath("requirements.txt").open("w") as f:
-        proc = await asyncio.subprocess.create_subprocess_exec(
-            sys.executable,
-            "-m",
-            "pip",
-            "list",
-            "--format",
-            "freeze",
-            "--exclude-editable",
-            *[f"--exclude={p}" for p in EXCLUDE_PACKAGES],
-            stdout=subprocess.PIPE,
-        )
-        stdout, _ = await proc.communicate()
-        f.write(stdout.decode().rstrip("\n") + "\n")
+        for dist in distributions():
+            f.write(_get_requirement_string(dist) + "\n")
         if extras:
             f.write("\n".join(extras) + "\n")