feat: add has_recipe

src/rattler_build_conda_compat/utils.py

@@ -1,6 +1,7 @@
 import fnmatch
 from logging import getLogger
 import os
+from pathlib import Path
 from typing import Iterable
 
 
@@ -158,3 +159,21 @@ def find_recipe(path):
     raise OSError(
         "More than one meta files ({}) found in {}".format(", ".join(VALID_METAS), path)
     )
+
+
+def has_recipe(recipe_dir: Path) -> bool:
+    """
+    
+    verify if recipe_dir contains recipe.yaml
+
+    it is used to detect whetever old or recipe should be used
+
+    
+    """
+    try:
+        recipe_path = find_recipe(recipe_dir)
+        if recipe_path:
+            return True
+        return False
+    except OSError:
+        return False

tests/conftest.py

@@ -24,3 +24,25 @@ def unix_namespace():
     namespace = {"linux-64": True, "unix": True}
 
     return namespace
+
+
+@pytest.fixture
+def recipe_dir(tmpdir):
+    py_recipe = Path("tests/data/py_recipe.yaml").read_text()
+    recipe_dir = tmpdir / "recipe"
+    mkdir(recipe_dir)
+
+    (recipe_dir / "recipe.yaml").write_text(py_recipe, encoding="utf8")
+
+    yield recipe_dir
+
+
+@pytest.fixture
+def old_recipe_dir(tmpdir):
+    recipe_dir = tmpdir / "recipe"
+    mkdir(recipe_dir)
+
+    meta = Path(recipe_dir / "meta.yaml")
+    meta.touch()
+
+    yield recipe_dir

tests/test_utils.py

@@ -0,0 +1,9 @@
+from rattler_build_conda_compat.utils import has_recipe
+
+
+def test_recipe_is_present(recipe_dir):
+    assert has_recipe(recipe_dir)
+
+
+def test_recipe_is_absent(old_recipe_dir):
+    assert has_recipe(old_recipe_dir) is False