feat: started on 'inject'

src/uvx/cli.py

@@ -20,6 +20,7 @@
 from .core import (
     as_virtualenv,
     format_bools,
+    inject_packages,
     install_package,
     list_packages,
     reinstall_package,
@@ -68,6 +69,16 @@ def reinstall(package: str, python: Optional[str] = None, force: bool = False):
     )
 
 
+@app.command()
+def inject(into: str, package_specs: list[str]):
+    output(
+        inject_packages(
+            into,
+            package_specs,
+        )
+    )
+
+
 # list
 def _list_short(name: str, metadata: Maybe[Metadata]):
     rich.print("-", name, metadata.map_or("[red]?[/red]", lambda md: md.installed_version))
@@ -154,8 +165,6 @@ def runpython(venv: str, ctx: Context):
 
 # self-upgrade (uv and uvx)
 
-# inject
-
 # ...
 
 

src/uvx/core.py

@@ -211,6 +211,23 @@ def reinstall_package(package_name: str, python: Optional[str] = None, force: bo
     return install_package(install_spec, python=python, force=force)
 
 
+def inject_packages(into: str, package_specs: list[str]) -> Result[str, Exception]:
+    match collect_metadata(into):
+        case Err(e):
+            return Err(e)
+        case Ok(meta):
+            # just bind meta
+            ...
+
+    workdir = ensure_local_folder()
+    venv = workdir / "venvs" / meta.name
+
+    if not venv.exists():
+        return Err(ValueError(f"'{meta.name}' was not previously installed. Please run 'uvx install {into}' first."))
+
+    return Ok(f"todo in {meta}")
+
+
 def remove_dir(path: Path):
     """
     Remove a directory.