fix: when extracting name of rendered recipe

src/rattler_build_conda_compat/render.py

@@ -83,7 +83,7 @@ def name(self) -> str:
             - ValueError: If the name is not lowercase or missing.
 
         """
-        name = _get_recipe_metadata(self.meta, "name")
+        name = _get_recipe_metadata(self.meta, "name", rendered=self._rendered)
 
         if not name:
             raise ValueError(f"Error: package/name missing in: {self.meta_path!r}")
@@ -105,7 +105,7 @@ def version(self) -> str:
             - CondaBuildUserError: If the `version` contains bad characters.
             - ValueError: If the version starts with a period or version is missing.
         """
-        version = _get_recipe_metadata(self.meta, "version")
+        version = _get_recipe_metadata(self.meta, "version", rendered=self._rendered)
 
         if not version:
             raise ValueError(f"Error: package/version missing in: {self.meta_path!r}")
@@ -255,9 +255,9 @@ def render_recipe(
 
 
 def render(
-    recipe_path,
-    config=None,
-    variants=None,
+    recipe_path: os.PathLike,
+    config: Optional[Config] = None,
+    variants: Optional[Dict[str, Any] | None] = None,
     **kwargs,
 ):
     """Given path to a recipe, return the MetaData object(s) representing that recipe, with jinja2

src/rattler_build_conda_compat/utils.py

@@ -177,11 +177,15 @@ def has_recipe(recipe_dir: Path) -> bool:
 _Metadata = Literal["name", "version"]
 
 
-def _get_recipe_metadata(meta: dict[str, Any], field: _Metadata) -> str:
+def _get_recipe_metadata(meta: dict[str, Any], field: _Metadata, rendered: bool = False) -> str:
     """
-    Get recipe metadata ( name or version ).
+    Get recipe metadata ( name or version )
     It will extract from recipe or package section, depending on the presence of multiple outputs.
+    If recipe was rendered by rattler-build, they are always present under recipe.package field.
     """
+    if rendered:
+        return meta.get("recipe", {}).get("package", {}).get(field, "")
+
     if "outputs" in meta:
         return meta.get("recipe", {}).get(field, "")
     else:

tests/conftest.py

@@ -72,6 +72,11 @@ def rich_recipe() -> Path:
     return Path("tests/data/rich_recipe.yaml")
 
 
+@pytest.fixture()
+def multiple_outputs() -> Path:
+    return Path("tests/data/multiple_outputs.yaml")
+
+
 @pytest.fixture()
 def feedstock_dir_with_recipe(tmpdir: Path) -> Path:
     feedstock_dir = tmpdir / "feedstock"

tests/data/mamba_recipe.yaml

@@ -41,7 +41,7 @@ outputs:
       run:
         - libsolv >=0.7.23
       run_exports:
-        - ${{ pin_subpackage('libmamba', max_pin='x.x') }}
+        - ${{ pin_subpackage('libmamba', upper_bound='x.x') }}
       ignore_run_exports:
         by_name:
           - spdlog

tests/data/multiple_outputs.yaml

@@ -0,0 +1,121 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/prefix-dev/recipe-format/main/schema.json
+
+context:
+  name: mamba
+  libmamba_version: "1.5.8"
+  libmambapy_version: "1.5.8"
+  mamba_version: "1.5.8"
+  release: "2024.03.25"
+  build_number: 2
+
+recipe:
+  name: mamba-split
+  version: ${{ mamba_version }}
+
+source:
+  url: https://github.com/mamba-org/mamba/archive/refs/tags/${{ release }}.tar.gz
+  sha256: 6ddaf4b0758eb7ca1250f427bc40c2c3ede43257a60bac54e4320a4de66759a6
+
+build:
+  number: ${{ build_number }}
+
+outputs:
+  - package:
+      name: libmamba
+      version: ${{ libmamba_version }}
+    build:
+      script:
+        - ${{ "build_mamba.sh" if unix }}
+        - ${{ "build_mamba.bat" if win }}
+    requirements:
+      build:
+        - ${{ compiler('cxx') }}
+        - cmake
+        - ninja
+        - ${{ "python" if win }}
+      host:
+        - libsolv >=0.7.23
+        - libcurl >=8.4.0
+        - fmt
+        - ${{ "winreg" if win }}
+      run:
+        - libsolv >=0.7.23
+      run_exports:
+        - ${{ pin_subpackage('libmamba', upper_bound='x.x') }}
+      ignore_run_exports:
+        by_name:
+          - spdlog
+          - python
+    tests:
+      - script:
+        - if: unix
+          then:
+            - test -d ${PREFIX}/include/mamba  # [unix]
+          else:
+            - if not exist %LIBRARY_PREFIX%\include\mamba\version.hpp (exit 1)  # [win]
+
+  - package:
+      name: libmambapy
+      version: ${{ libmambapy_version }}
+    build:
+      script:
+        - ${{ "build_mamba.sh" if unix }}
+        - ${{ "build_mamba.bat" if win }}
+      # string: py_sup${{ python | version_to_buildstring }}h${{ hash }}_${{ build_number }}
+    requirements:
+      build:
+        - ${{ compiler('cxx') }}
+        - cmake
+        - ninja
+        - if: build_platform != target_platform
+          then:
+            - python
+            - cross-python_${{ target_platform }}
+            - pybind11
+            - pybind11-abi
+      host:
+        - python
+        - nlohmann_json
+        - ${{ pin_subpackage('libmamba', exact=True) }}
+      run:
+        - python
+        - ${{ pin_subpackage('libmamba', exact=True) }}
+      run_exports:
+        - ${{ pin_subpackage('libmambapy', upper_bound='x.x') }}
+      ignore_run_exports:
+        by_name:
+          - spdlog
+
+  - package:
+      name: mamba
+      version: ${{ mamba_version }}
+    build:
+      script:
+        - ${{ "build_mamba.sh" if unix }}
+        - ${{ "build_mamba.bat" if win }}
+        - ${{ "test_mamba.bat" if target_platform == win }}
+      string: py${{ python | version_to_buildstring }}h${{ hash }}_${{ build_number }}
+      python:
+        entry_points:
+          - mamba = mamba.mamba:main
+    requirements:
+      build:
+        - if: build_platform != target_platform
+          then:
+            - python
+            - cross-python_${{ target_platform }}
+      run:
+        - python
+        - conda >=23.9,<24
+        - ${{ pin_subpackage('libmambapy', exact=True) }}
+
+
+about:
+  homepage: https://github.com/mamba-org/mamba
+  license: BSD-3-Clause
+  license_file: LICENSE
+  license_family: BSD
+  summary: A fast drop-in alternative to conda, using libsolv for dependency resolution
+  description: Mamba, the Fast Cross-Platform Package Manager
+
+  repository: https://github.com/mamba-org/mamba

tests/test_rattler_render.py

@@ -65,3 +65,27 @@ def test_metadata_for_multiple_output(feedstock_dir_with_recipe: Path, mamba_rec
 
     assert rattler_metadata.name() == "mamba-split"
     assert rattler_metadata.version() == "1.5.8"
+
+
+def test_metadata_when_rendering_single_output(
+    feedstock_dir_with_recipe: Path, rich_recipe: Path
+) -> None:
+    recipe_path = feedstock_dir_with_recipe / "recipe" / "recipe.yaml"
+    (recipe_path).write_text(rich_recipe.read_text(), encoding="utf8")
+
+    rendered = render(str(recipe_path), platform="linux", arch="64")
+
+    assert rendered[0][0].name() == "rich"
+    assert rendered[0][0].version() == "13.4.2"
+
+
+def test_metadata_when_rendering_multiple_output(
+    feedstock_dir_with_recipe: Path, multiple_outputs: Path
+) -> None:
+    recipe_path = feedstock_dir_with_recipe / "recipe" / "recipe.yaml"
+    (recipe_path).write_text(multiple_outputs.read_text(), encoding="utf8")
+
+    rendered = render(str(recipe_path), platform="linux", arch="64")
+
+    assert rendered[0][0].name() == "libmamba"
+    assert rendered[0][0].version() == "1.5.8"