fix: normalize default dependency group name to underscores to prevent configuration mismatches

e2e/BUILD.bazel

@@ -36,6 +36,9 @@ write_source_files(
     name = "snapshots",
     testonly = True,
     files = {
+        # @pypi_rdflib_linux — dep_group names must be underscore-normalized.
+        "snapshots/pypi_rdflib_linux.dep_group.BUILD.bazel": "@pypi_rdflib_linux//dep_group:BUILD.bazel",
+
         # @pypi_multi (multi-project: alpha, beta, gamma)
         # ----------------------------------------------------------------
         # Per-package alias with multiple select arms. Catches regressions in

e2e/MODULE.bazel

@@ -98,6 +98,7 @@ include("//cases/freethreaded-805:setup.MODULE.bazel")
 include("//cases/multi-project-hub:setup.MODULE.bazel")
 include("//cases/oci:setup.MODULE.bazel")
 include("//cases/pth-namespace-547:setup.MODULE.bazel")
+include("//cases/rdflib-linux:setup.MODULE.bazel")
 include("//cases/pytest-main-867:setup.MODULE.bazel")
 include("//cases/pytest-mock-530:setup.MODULE.bazel")
 include("//cases/pytest-subdir-imports:setup.MODULE.bazel")
@@ -107,6 +108,7 @@ include("//cases/single-project-hub:setup.MODULE.bazel")
 include("//cases/unconstrained-dependencies:setup.MODULE.bazel")
 include("//cases/uv-abi3-compat-853:setup.MODULE.bazel")
 include("//cases/uv-bare-linux-wheels:setup.MODULE.bazel")
+include("//cases/uv-hub-cross-project:setup.MODULE.bazel")
 include("//cases/uv-conflict-817:setup.MODULE.bazel")
 include("//cases/uv-conflict-gte:setup.MODULE.bazel")
 include("//cases/uv-conflict-max-863:setup.MODULE.bazel")

e2e/cases/firebase-admin-import/BUILD.bazel

@@ -39,7 +39,7 @@ load("//tools:pth_snapshot.bzl", "extract_venv_pth")
 py_test(
     name = "test",
     srcs = ["test.py"],
-    dep_group = "firebase-admin-import",
+    dep_group = "firebase_admin_import",
     main = "test.py",
     deps = [
         "@pypi_firebase_admin_import//firebase_admin",
@@ -53,7 +53,7 @@ py_test(
 py_test(
     name = "test_tool",
     srcs = ["test.py"],
-    dep_group = "firebase-admin-import",
+    dep_group = "firebase_admin_import",
     expose_venv = True,
     isolated = False,
     main = "test.py",
@@ -73,7 +73,7 @@ py_test(
 py_binary(
     name = "firebase_importer",
     srcs = ["test.py"],
-    dep_group = "firebase-admin-import",
+    dep_group = "firebase_admin_import",
     main = "test.py",
     deps = [
         "@pypi_firebase_admin_import//firebase_admin",

e2e/cases/freethreaded-805/BUILD.bazel

@@ -26,7 +26,7 @@ _LINUX_X86_64 = [
 py_test(
     name = "test_bin",
     srcs = ["test.py"],
-    dep_group = "freethreaded-test",
+    dep_group = "freethreaded_test",
     main = "test.py",
     python_version = "3.13",
     tags = ["manual"],
@@ -46,7 +46,7 @@ platform_transition_test(
 py_test(
     name = "venv_test_bin",
     srcs = ["test.py"],
-    dep_group = "freethreaded-test",
+    dep_group = "freethreaded_test",
     expose_venv = True,
     isolated = False,
     main = "test.py",

e2e/cases/pth-namespace-547/BUILD.bazel

@@ -5,7 +5,7 @@ load("//tools:pth_snapshot.bzl", "extract_venv_pth")
 py_test(
     name = "test",
     srcs = ["__test__.py"],
-    dep_group = "pth-namespace-547",
+    dep_group = "pth_namespace_547",
     expose_venv = True,
     isolated = False,
     main = "__test__.py",
@@ -21,7 +21,7 @@ py_test(
 py_test(
     name = "test_legacy",
     srcs = ["__test__.py"],
-    dep_group = "pth-namespace-547",
+    dep_group = "pth_namespace_547",
     main = "__test__.py",
     deps = [
         "@pypi_pth_namespace_547//jaraco_classes",

e2e/cases/pytest-main-867/BUILD.bazel

@@ -5,7 +5,7 @@ load("@aspect_rules_py//py:defs.bzl", "py_pytest_main", "py_test")
 py_test(
     name = "test_example",
     srcs = ["test_example.py"],
-    dep_group = "pytest-main-867",
+    dep_group = "pytest_main_867",
     pytest_main = True,
     deps = ["@pypi_pytest_main_867//pytest"],
 )
@@ -15,7 +15,7 @@ py_test(
 py_test(
     name = "test_naming_regression",
     srcs = ["test_example.py"],
-    dep_group = "pytest-main-867",
+    dep_group = "pytest_main_867",
     pytest_main = True,
     deps = ["@pypi_pytest_main_867//pytest"],
 )
@@ -29,7 +29,7 @@ py_test(
         "test_a.py",
         "test_b.py",
     ],
-    dep_group = "pytest-main-867",
+    dep_group = "pytest_main_867",
     pytest_main = True,
     deps = ["@pypi_pytest_main_867//pytest"],
 )
@@ -39,7 +39,7 @@ py_test(
 py_test(
     name = "test_collection_check",
     srcs = ["test_collection_check.py"],
-    dep_group = "pytest-main-867",
+    dep_group = "pytest_main_867",
     pytest_main = True,
     deps = ["@pypi_pytest_main_867//pytest"],
 )
@@ -58,7 +58,7 @@ py_test(
         "test_a.py",
         ":test_direct_main",
     ],
-    dep_group = "pytest-main-867",
+    dep_group = "pytest_main_867",
     main = ":__test__test_direct_main__.py",
     deps = [
         ":test_direct_main",

e2e/cases/pytest-mock-530/BUILD.bazel

@@ -4,7 +4,7 @@ load("@aspect_rules_py//py:defs.bzl", "py_test")
 py_test(
     name = "test_mock_py_test",
     srcs = ["test_mock.py"],
-    dep_group = "pytest-mock-530",
+    dep_group = "pytest_mock_530",
     pytest_main = True,
     deps = [
         "@pypi_pytest_mock_530//pytest",
@@ -18,7 +18,7 @@ py_test(
         "__test__.py",
         "test_mock.py",
     ],
-    dep_group = "pytest-mock-530",
+    dep_group = "pytest_mock_530",
     expose_venv = True,
     isolated = False,
     main = "__test__.py",

e2e/cases/pytest-subdir-imports/BUILD.bazel

@@ -9,7 +9,7 @@ py_library(
 py_test(
     name = "test_subdir_import",
     srcs = ["tests/test_subdir.py"],
-    dep_group = "pytest-subdir-imports",
+    dep_group = "pytest_subdir_imports",
     pytest_main = True,
     deps = [
         ":lib",

e2e/cases/pytest-xdist-integration/BUILD.bazel

@@ -13,7 +13,7 @@ py_test(
         "-n",
         "2",
     ],
-    dep_group = "pytest-xdist-integration",
+    dep_group = "pytest_xdist_integration",
     pytest_main = True,
     deps = [
         "@pypi_pytest_xdist_integration//pytest",

e2e/cases/rdflib-linux/BUILD.bazel

@@ -0,0 +1,22 @@
+load("@aspect_rules_py//py:defs.bzl", "py_test")
+load("@rules_shell//shell:sh_test.bzl", "sh_test")
+
+# Regression: hyphenated [project].name caused config_setting names with hyphens,
+# breaking dep_group = "rdflib_linux" (underscore) matching. Fix: normalize_name().
+sh_test(
+    name = "dep_group_names_normalized",
+    srcs = ["check_dep_group_names.sh"],
+    args = ["$(location @pypi_rdflib_linux//dep_group:BUILD.bazel)"],
+    data = ["@pypi_rdflib_linux//dep_group:BUILD.bazel"],
+    target_compatible_with = ["@platforms//os:linux"],
+)
+
+py_test(
+    name = "rdflib_linux",
+    srcs = ["__test__.py"],
+    dep_group = "rdflib_linux",
+    main = "__test__.py",
+    python_version = "3.11",
+    target_compatible_with = ["@platforms//os:linux"],
+    deps = ["@pypi_rdflib_linux//rdflib"],
+)

e2e/cases/rdflib-linux/__test__.py

@@ -0,0 +1,14 @@
+"""Regression: rdflib must be importable on Linux.
+
+Reported error:
+  @@aspect_rules_py++uv+pypi//rdflib:rdflib (cae838)
+    <-- target platform (...:linux_host_platform) didn't satisfy constraint
+        @@platforms//:incompatible
+"""
+
+import rdflib
+from rdflib import Graph
+
+g = Graph()
+assert rdflib.__version__ == "7.1.1", rdflib.__version__
+print("rdflib", rdflib.__version__, "imported and Graph() constructed successfully")

e2e/cases/rdflib-linux/check_dep_group_names.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+# Regression: dep_group config_setting names must be normalized (hyphens → underscores).
+# If the hub emits config_setting(name = "rdflib-linux"), then dep_group = "rdflib_linux"
+# never matches and every package in the hub becomes @@platforms//:incompatible.
+set -euo pipefail
+
+BUILD_FILE="${1:?usage: check_dep_group_names.sh <dep_group/BUILD.bazel>}"
+
+if grep -qF '"rdflib-linux"' "$BUILD_FILE"; then
+    echo "FAIL: config_setting name contains hyphens: 'rdflib-linux'"
+    echo "      dep_group = \"rdflib_linux\" (underscore) will never match it."
+    echo "      uv_hub must normalize project names via normalize_name() before"
+    echo "      emitting config_setting targets and flag_values."
+    echo ""
+    grep '"rdflib-linux"' "$BUILD_FILE"
+    exit 1
+fi
+
+echo "PASS: all dep_group config_setting names are underscore-normalized"

e2e/cases/rdflib-linux/pyproject.toml

@@ -0,0 +1,8 @@
+[project]
+name = "rdflib-linux"
+version = "0.0.0"
+authors = []
+requires-python = ">=3.11"
+dependencies = [
+    "rdflib>=7.0.0",
+]

e2e/cases/rdflib-linux/setup.MODULE.bazel

@@ -0,0 +1,10 @@
+# Regression: hyphenated [project].name → config_setting name mismatch → @@platforms//:incompatible.
+
+uv = use_extension("@aspect_rules_py//uv:extensions.bzl", "uv")
+uv.declare_hub(hub_name = "pypi_rdflib_linux")
+uv.project(
+    hub_name = "pypi_rdflib_linux",
+    lock = "//cases/rdflib-linux:uv.lock",
+    pyproject = "//cases/rdflib-linux:pyproject.toml",
+)
+use_repo(uv, "pypi_rdflib_linux")

e2e/cases/uv-abi3-compat-853/BUILD.bazel

@@ -7,7 +7,7 @@ load("@aspect_rules_py//py:defs.bzl", "py_test")
 py_test(
     name = "test_import",
     srcs = ["test_abi3.py"],
-    dep_group = "abi3-compat",
+    dep_group = "abi3_compat",
     main = "test_abi3.py",
     python_version = "3.12",
     target_compatible_with = ["@platforms//os:linux"],
@@ -17,7 +17,7 @@ py_test(
 py_test(
     name = "test_import_venv_test",
     srcs = ["test_abi3.py"],
-    dep_group = "abi3-compat",
+    dep_group = "abi3_compat",
     expose_venv = True,
     isolated = False,
     main = "test_abi3.py",

e2e/cases/uv-hub-cross-project/BUILD.bazel

@@ -0,0 +1,12 @@
+load("@rules_shell//shell:sh_test.bzl", "sh_test")
+
+# Regression: packages must be isolated to the dep_group of the project that declares them.
+# rdflib is in rdflib-project; other-project has cowsay only. The rdflib hub alias
+# must not contain an other_project arm (cross-project contamination).
+sh_test(
+    name = "cross_project_isolation",
+    srcs = ["check_cross_project_isolation.sh"],
+    args = ["$(location @pypi_cross_hub//rdflib:BUILD.bazel)"],
+    data = ["@pypi_cross_hub//rdflib:BUILD.bazel"],
+    target_compatible_with = ["@platforms//os:linux"],
+)

e2e/cases/uv-hub-cross-project/check_cross_project_isolation.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+BUILD="${1:?}"
+
+if grep -qF "other_project" "$BUILD"; then
+    echo "FAIL: rdflib alias contains other_project arm — cross-project contamination"
+    grep "other_project" "$BUILD"
+    exit 1
+fi
+
+if ! grep -qF "rdflib_project" "$BUILD"; then
+    echo "FAIL: rdflib alias missing rdflib_project arm"
+    cat "$BUILD"
+    exit 1
+fi
+
+echo "PASS: rdflib isolated to rdflib_project"

e2e/cases/uv-hub-cross-project/other/BUILD.bazel

@@ -0,0 +1,7 @@
+exports_files(
+    [
+        "pyproject.toml",
+        "uv.lock",
+    ],
+    visibility = ["//:__subpackages__"],
+)

e2e/cases/uv-hub-cross-project/other/pyproject.toml

@@ -0,0 +1,8 @@
+[project]
+name = "other-project"
+version = "0.0.0"
+authors = []
+requires-python = ">=3.11"
+dependencies = [
+    "cowsay",
+]

e2e/cases/uv-hub-cross-project/pyproject.toml

@@ -0,0 +1,8 @@
+[project]
+name = "rdflib-project"
+version = "0.0.0"
+authors = []
+requires-python = ">=3.11"
+dependencies = [
+    "rdflib>=7.0.0",
+]