allow selectors in noarch_platforms recipes

conda_smithy/lint_recipe.py

@@ -384,8 +384,27 @@ def lintify(meta, recipe_dir=None, conda_forge=False):
                 )
             )
 
+    if recipe_dir:
+        forge_yaml_filename = (
+            glob(os.path.join(recipe_dir, "..", "conda-forge.yml"))
+            or glob(
+                os.path.join(recipe_dir, "conda-forge.yml"),
+            )
+            or glob(
+                os.path.join(recipe_dir, "..", "..", "conda-forge.yml"),
+            )
+        )
+        if forge_yaml_filename:
+            with open(forge_yaml_filename[0], "r") as fh:
+                forge_yaml = get_yaml().load(fh)
+        else:
+            forge_yaml = {}
+    else:
+        forge_yaml = {}
+
     # 18: noarch doesn't work with selectors for runtime dependencies
     if noarch_value is not None and os.path.exists(meta_fname):
+        noarch_platforms = len(forge_yaml.get("noarch_platforms", [])) > 1
         with io.open(meta_fname, "rt") as fh:
             in_runreqs = False
             for line in fh:
@@ -396,7 +415,7 @@ def lintify(meta, recipe_dir=None, conda_forge=False):
                     continue
                 if line_s.startswith("skip:") and is_selector_line(line):
                     lints.append(
-                        "`noarch` packages can't have selectors. If "
+                        "`noarch` packages can't have skips with selectors. If "
                         "the selectors are necessary, please remove "
                         "`noarch: {}`.".format(noarch_value)
                     )
@@ -405,7 +424,9 @@ def lintify(meta, recipe_dir=None, conda_forge=False):
                     if runreqs_spacing == line[: -len(line.lstrip())]:
                         in_runreqs = False
                         continue
-                    if is_selector_line(line):
+                    if is_selector_line(
+                        line, allow_platforms=noarch_platforms
+                    ):
                         lints.append(
                             "`noarch` packages can't have selectors. If "
                             "the selectors are necessary, please remove "
@@ -662,11 +683,18 @@ def check_pins_build_and_requirements(top_level):
     shell_scripts = []
     if recipe_dir:
         shell_scripts = glob(os.path.join(recipe_dir, "*.sh"))
-        # support feedstocks and staged-recipes
-        forge_yaml = glob(
-            os.path.join(recipe_dir, "..", "conda-forge.yml")
-        ) or glob(
-            os.path.join(recipe_dir, "..", "..", "conda-forge.yml"),
+        # support
+        # 1. feedstocks
+        # 2. staged-recipes with custom conda-forge.yaml in recipe
+        # 3. staged-recipes
+        forge_yaml = (
+            glob(os.path.join(recipe_dir, "..", "conda-forge.yml"))
+            or glob(
+                os.path.join(recipe_dir, "conda-forge.yml"),
+            )
+            or glob(
+                os.path.join(recipe_dir, "..", "..", "conda-forge.yml"),
+            )
         )
         if shell_scripts and forge_yaml:
             with open(forge_yaml[0], "r") as fh:
@@ -904,7 +932,7 @@ def run_conda_forge_specific(meta, recipe_dir, lints, hints):
                 hints.append(msg)
 
 
-def is_selector_line(line):
+def is_selector_line(line, allow_platforms=False):
     # Using the same pattern defined in conda-build (metadata.py),
     # we identify selectors.
     line = line.rstrip()
@@ -913,8 +941,10 @@ def is_selector_line(line):
         return False
     m = sel_pat.match(line)
     if m:
-        m.group(3)
-        return True
+        if allow_platforms and m.group(3) in ["win", "linux", "osx", "unix"]:
+            return False
+        else:
+            return True
     return False
 
 

news/noarch_platforms.rst

@@ -0,0 +1,23 @@
+**Added:**
+
+* <news item>
+
+**Changed:**
+
+* recipes with ``noarch_platforms`` will no longer give a lint when selectors are used.
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+* <news item>
+
+**Security:**
+
+* <news item>

tests/recipes/noarch_platforms/conda-forge.yml

@@ -0,0 +1,13 @@
+build_platform:
+  osx_arm64: osx_64
+conda_forge_output_validation: true
+github:
+  branch_name: main
+  tooling_branch_name: main
+provider:
+  linux_aarch64: default
+  linux_ppc64le: default
+test_on_native_only: true
+noarch_platforms:
+  - linux_64
+  - win_64

tests/recipes/noarch_platforms/recipe/meta.yaml

@@ -0,0 +1,71 @@
+{% set version = "7.1.3" %}
+
+package:
+  name: pytest
+  version: {{ version }}
+
+source:
+  url: https://pypi.io/packages/source/p/pytest/pytest-{{ version }}.tar.gz
+  sha256: 4f365fec2dff9c1162f834d9f18af1ba13062db0c708bf7b946f8a5c76180c39
+
+build:
+  number: 1
+  script: {{ PYTHON }} setup.py install --single-version-externally-managed --record record.txt
+  entry_points:
+    - pytest = pytest:console_main
+    - py.test = pytest:console_main
+  noarch: python
+  string: "win_pyh{{ PKG_HASH }}_{{ PKG_BUILDNUM }}"   # [win]
+  string: "unix_pyh{{ PKG_HASH }}_{{ PKG_BUILDNUM }}"  # [unix]
+
+
+requirements:
+  build:
+    - python                                 # [build_platform != target_platform]
+    - cross-python_{{ target_platform }}     # [build_platform != target_platform]
+  host:
+    - pip
+    - python >=3.8
+    - setuptools >=42.0
+    - setuptools_scm >=6.0
+  run:
+    - python >=3.8
+    - attrs >=19.2.0
+    - iniconfig
+    - packaging
+    - pluggy >=0.12,<2.0
+    - py >=1.8.2
+    - tomli >=1.0.0
+    - colorama  # [win]
+    - __win     # [win]
+    - __unix    # [unix]
+
+  run_constrained:
+    # pytest-faulthandler 2 is a dummy package.
+    # if an older version of fault-handler is installed, it will conflict with pytest >=5.
+    - pytest-faulthandler >=2
+
+test:
+  commands:
+    - pytest -h
+  imports:
+    - pytest
+
+about:
+  home: https://docs.pytest.org/en/latest/
+  license: MIT
+  license_file: LICENSE
+  summary: Simple and powerful testing with Python.
+  description: |
+    The pytest framework makes it easy to write small tests, yet scales to
+    support complex functional testing for applications and libraries.
+  doc_url: https://docs.pytest.org/en/latest/
+  dev_url: https://github.com/pytest-dev/pytest/
+
+extra:
+  recipe-maintainers:
+    - flub
+    - goanpeca
+    - nicoddemus
+    - ocefpaf
+    - mingwandroid

tests/test_lint_recipe.py

@@ -415,7 +415,7 @@ def assert_pyXY_selector(meta_string, is_good=False, kind="lint"):
             )
 
     def test_noarch_selectors(self):
-        expected_start = "`noarch` packages can't have selectors."
+        expected_start = "`noarch` packages can't have"
 
         with tmp_directory() as recipe_dir:
 
@@ -1179,6 +1179,12 @@ def test_multiple_sources(self):
         )
         assert not lints
 
+    def test_noarch_platforms(self):
+        lints = linter.main(
+            os.path.join(_thisdir, "recipes", "noarch_platforms", "recipe")
+        )
+        assert not lints
+
     def test_string_source(self):
         url = "http://mistake.com/v1.0.tar.gz"
         lints, hints = linter.lintify({"source": url})