fixup the implementation

Author: aignas

python/private/pypi/hub_builder.bzl

@@ -331,7 +331,8 @@ def _add_whl_library(self, *, python_version, whl, repo):
         # in the hub context. If we have whl-only pipstar extraction, then we can reuse the
         # extracted sources.
         repos_dict = self._whl_libraries
-        deps_args = repo.args
+        deps_args = dict(repo.args)
+        deps_args["requirement"] = requirement(deps_args["requirement"]).name
     else:
         extract_args = {
             k: v
@@ -348,12 +349,12 @@ def _add_whl_library(self, *, python_version, whl, repo):
         _add_library(
             self,
             repos_dict = self._whl_libraries,
-            name = repo.whl_repo_name,
+            name = repo.base_repo_name,
             args = extract_args,
         )
 
         deps_args = {
-            k: repo.args[k]
+            k: repo.args.get(k)
             for k in [
                 "config_load",
                 "dep_template",
@@ -363,7 +364,7 @@ def _add_whl_library(self, *, python_version, whl, repo):
         } | {
             # TODO @aignas 2026-07-04: add a test
             "extras": req.extras,
-            "whl_library": "@{}//:BUILD.bazel".format(repo.whl_repo_name),
+            "whl_library": "@{}//:BUILD.bazel".format(repo.base_repo_name),
         }
         repos_dict = self._whl_library_deps
 
@@ -589,16 +590,6 @@ def _create_whl_repos(
     interpreter = _detect_interpreter(self, pip_attr, python_version)
 
     for whl in requirements_by_platform:
-        # Check if all sources for this wheel have the same requirement line.
-        # If they do, we can reuse the same whl_library repository across platforms.
-        same_requirements = True
-        if whl.srcs:
-            first_req = whl.srcs[0].requirement_line
-            for src in whl.srcs[1:]:
-                if src.requirement_line != first_req:
-                    same_requirements = False
-                    break
-
         whl_library_args = common_args | _whl_library_args(
             self,
             whl = whl,
@@ -615,7 +606,6 @@ def _create_whl_repos(
                 auth_patterns = self._config.auth_patterns or pip_attr.auth_patterns,
                 python_version = _major_minor_version(python_version),
                 is_multiple_versions = whl.is_multiple_versions,
-                same_requirements = same_requirements,
                 interpreter = interpreter,
                 enable_pipstar_extract = enable_pipstar_extract,
             )
@@ -686,7 +676,6 @@ def _whl_repo(
         whl_library_args,
         index_url,
         is_multiple_versions,
-        same_requirements,
         download_only,
         netrc,
         auth_patterns,
@@ -718,12 +707,15 @@ def _whl_repo(
             return None
         else:
             # Fallback to a pip-installed wheel
-            target_platforms = src.target_platforms if (is_multiple_versions or not same_requirements) else []
+            target_platforms = src.target_platforms if is_multiple_versions else []
             return struct(
                 repo_name = pypi_repo_name(
                     normalize_name(src.distribution),
                     *target_platforms
                 ),
+                base_repo_name = pypi_repo_name(
+                    normalize_name(src.distribution),
+                ),
                 args = args,
                 config_setting = whl_config_setting(
                     version = python_version,
@@ -748,11 +740,11 @@ def _whl_repo(
     # TODO @aignas 2025-11-02: once we have pipstar enabled we can add extra
     # targets to each hub for each extra combination and solve this more cleanly as opposed to
     # duplicating whl_library repositories.
-    target_platforms = src.target_platforms if (is_multiple_versions or not same_requirements) else []
+    target_platforms = src.target_platforms if is_multiple_versions else []
 
     return struct(
         repo_name = whl_repo_name(src.filename, src.sha256, *target_platforms),
-        whl_repo_name = whl_repo_name(src.filename, src.sha256, *target_platforms),
+        base_repo_name = whl_repo_name(src.filename, src.sha256),
         args = args,
         config_setting = whl_config_setting(
             version = python_version,