*: Switch to python

src/context.py

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+import os
+from dataclasses import dataclass, field
+from pathlib import PurePosixPath
+from typing import Any
+
+from src.container import Container
+from src.recipe import Recipe
+
+
+@dataclass
+class RecipeContext:
+    """The `self` value passed to recipe phase functions."""
+
+    recipe: Recipe
+    profile: dict
+    container: Container
+    jobs: int
+    _dest_output: str | None = None
+    env: dict[str, str] = field(default_factory=dict)
+
+    @property
+    def name(self) -> str:
+        return self.recipe.name
+
+    @property
+    def version(self) -> str:
+        return self.recipe.version
+
+    @property
+    def revision(self) -> int:
+        return self.recipe.revision
+
+    @property
+    def source_dir(self) -> PurePosixPath:
+        srcs = self.recipe.sources
+        if len(srcs) == 1:
+            return PurePosixPath("/sources")
+        raise RuntimeError(f"{self.name}: multiple sources; use self.sources")
+
+    @property
+    def sources(self) -> dict[str, PurePosixPath]:
+        srcs = self.recipe.sources
+        if len(srcs) == 1:
+            raise RuntimeError(f"{self.name}: only one source; use self.source_dir")
+        out: dict[str, PurePosixPath] = {}
+        for k in srcs.keys():
+            if k is None:
+                raise RuntimeError(f"{self.name}: multiple sources must be named")
+            out[k] = PurePosixPath("/sources") / k
+        return out
+
+    @property
+    def build_dir(self) -> PurePosixPath:
+        return PurePosixPath("/build")
+
+    @property
+    def sysroot(self) -> PurePosixPath:
+        return PurePosixPath("/sysroot")
+
+    @property
+    def dest_dir(self) -> PurePosixPath:
+        if self._dest_output is None:
+            raise RuntimeError("dest_dir only available during install/package phases")
+        return PurePosixPath("/dest") / self._dest_output
+
+    @property
+    def files(self) -> PurePosixPath:
+        if self.recipe.files_dir is None:
+            raise RuntimeError(f"{self.name}: no files/ dir")
+        return PurePosixPath("/files")
+
+    @property
+    def prefix(self) -> str:
+        return f"/tools/{self.name}" if self.recipe.kind == "host" else "/usr"
+
+    @property
+    def triple(self) -> str:
+        return self.profile["triple"]
+
+    @property
+    def arch(self) -> str:
+        return self.profile["arch"]
+
+    def run(
+        self,
+        *argv,
+        env: dict[str, str] | None = None,
+        cwd: str | os.PathLike | None = None,
+    ) -> None:
+        flat: list[str] = []
+        for a in argv:
+            if isinstance(a, (PurePosixPath, os.PathLike)):
+                flat.append(str(a))
+            elif isinstance(a, bool):
+                raise TypeError("bool not allowed in run(); use str")
+            elif isinstance(a, (str, int)):
+                flat.append(str(a))
+            else:
+                raise TypeError(f"unsupported arg type in run(): {type(a).__name__}")
+        merged = dict(self.env)
+        if env:
+            merged.update(env)
+        cwd_s = str(cwd) if cwd is not None else "/build"
+        self.container.exec(flat, env=merged, cwd=cwd_s)