fix: Resolve incorrect platform specific dependency

Author: ewianda

CHANGELOG.md

@@ -81,6 +81,8 @@ Unreleased changes template.
 
 {#v0-0-0-fixed}
 ### Fixed
+* (pypi) Platform specific markers are now correctly handled when using `requirments_by_platform`
+  in pip.parse.
 * (runfiles) ({obj}`--bootstrap_impl=script`) Follow symlinks when searching for runfiles.
 * (toolchains) Do not try to run `chmod` when downloading non-windows hermetic toolchain
   repositories on Windows. Fixes

python/private/pypi/parse_requirements.bzl

@@ -30,6 +30,7 @@ load("//python/private:normalize_name.bzl", "normalize_name")
 load("//python/private:repo_utils.bzl", "repo_utils")
 load(":index_sources.bzl", "index_sources")
 load(":parse_requirements_txt.bzl", "parse_requirements_txt")
+load(":pep508_req.bzl", "requirement")
 load(":whl_target_platforms.bzl", "select_whls")
 
 def _extract_version(entry):
@@ -111,8 +112,9 @@ def parse_requirements(
         # The requirement lines might have duplicate names because lines for extras
         # are returned as just the base package name. e.g., `foo[bar]` results
         # in an entry like `("foo", "foo[bar] == 1.0 ...")`.
+        # Lines with different markers are not condidered duplicates.
         requirements_dict = {
-            (normalize_name(entry[0]), _extract_version(entry[1])): entry
+            (normalize_name(entry[0]), _extract_version(entry[1]), requirement(entry[1]).marker): entry
             for entry in sorted(
                 parse_result.requirements,
                 # Get the longest match and fallback to original WORKSPACE sorting,

python/private/pypi/pep508_env.bzl

@@ -30,7 +30,7 @@ _platform_system_values = {
     "windows": "Windows",
 }
 _sys_platform_values = {
-    "linux": "posix",
+    "linux": "linux",
     "osx": "darwin",
     "windows": "win32",
 }

tests/pypi/extension/extension_tests.bzl

@@ -856,6 +856,84 @@ git_dep @ git+https://git.server/repo/project@deadbeefdeadbeef
 
 _tests.append(_test_simple_get_index)
 
+def _test_optimum_sys_platform_extra(env):
+    pypi = _parse_modules(
+        env,
+        module_ctx = _mock_mctx(
+            _mod(
+                name = "rules_python",
+                parse = [
+                    _parse(
+                        hub_name = "pypi",
+                        python_version = "3.15",
+                        requirements_lock = "universal.txt",
+                    ),
+                ],
+            ),
+            read = lambda x: {
+                "universal.txt": """\
+optimum[onnxruntime]==1.17.1 ; sys_platform == 'darwin'
+optimum[onnxruntime-gpu]==1.17.1 ; sys_platform == 'linux'
+""",
+            }[x],
+        ),
+        available_interpreters = {
+            "python_3_15_host": "unit_test_interpreter_target",
+        },
+    )
+
+    pypi.exposed_packages().contains_exactly({"pypi": []})
+    pypi.hub_group_map().contains_exactly({"pypi": {}})
+    pypi.hub_whl_map().contains_exactly({
+        "pypi": {
+            "optimum": {
+                "pypi_315_optimum_linux_aarch64_linux_arm_linux_ppc_linux_s390x_linux_x86_64": [
+                    whl_config_setting(
+                        version = "3.15",
+                        target_platforms = [
+                            "cp315_linux_aarch64",
+                            "cp315_linux_arm",
+                            "cp315_linux_ppc",
+                            "cp315_linux_s390x",
+                            "cp315_linux_x86_64",
+                        ],
+                        config_setting = None,
+                        filename = None,
+                    ),
+                ],
+                "pypi_315_optimum_osx_aarch64_osx_x86_64": [
+                    whl_config_setting(
+                        version = "3.15",
+                        target_platforms = [
+                            "cp315_osx_aarch64",
+                            "cp315_osx_x86_64",
+                        ],
+                        config_setting = None,
+                        filename = None,
+                    ),
+                ],
+            },
+        },
+    })
+
+    pypi.whl_libraries().contains_exactly({
+        "pypi_315_optimum_linux_aarch64_linux_arm_linux_ppc_linux_s390x_linux_x86_64": {
+            "dep_template": "@pypi//{name}:{target}",
+            "python_interpreter_target": "unit_test_interpreter_target",
+            "repo": "pypi_315",
+            "requirement": "optimum[onnxruntime-gpu]==1.17.1",
+        },
+        "pypi_315_optimum_osx_aarch64_osx_x86_64": {
+            "dep_template": "@pypi//{name}:{target}",
+            "python_interpreter_target": "unit_test_interpreter_target",
+            "repo": "pypi_315",
+            "requirement": "optimum[onnxruntime]==1.17.1",
+        },
+    })
+    pypi.whl_mods().contains_exactly({})
+
+_tests.append(_test_optimum_sys_platform_extra)
+
 def extension_test_suite(name):
     """Create the test suite.