1 files changed, 45 insertions, 0 deletions
diff --git a/python/pip_install/tools/lib/bazel.py b/python/pip_install/tools/lib/bazel.py
new file mode 100644
index 0000000..81119e9
--- /dev/null
+++ b/python/pip_install/tools/lib/bazel.py
@@ -0,0 +1,45 @@
+# Copyright 2023 The Bazel Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import re
+
+WHEEL_FILE_LABEL = "whl"
+PY_LIBRARY_LABEL = "pkg"
+DATA_LABEL = "data"
+DIST_INFO_LABEL = "dist_info"
+WHEEL_ENTRY_POINT_PREFIX = "rules_python_wheel_entry_point"
+
+
+def sanitise_name(name: str, prefix: str) -> str:
+    """Sanitises the name to be compatible with Bazel labels.
+
+    See the doc in ../../../private/normalize_name.bzl.
+    """
+    return prefix + re.sub(r"[-_.]+", "_", name).lower()
+
+
+def _whl_name_to_repo_root(whl_name: str, repo_prefix: str) -> str:
+    return "@{}//".format(sanitise_name(whl_name, prefix=repo_prefix))
+
+
+def sanitised_repo_library_label(whl_name: str, repo_prefix: str) -> str:
+    return '"{}:{}"'.format(
+        _whl_name_to_repo_root(whl_name, repo_prefix), PY_LIBRARY_LABEL
+    )
+
+
+def sanitised_repo_file_label(whl_name: str, repo_prefix: str) -> str:
+    return '"{}:{}"'.format(
+        _whl_name_to_repo_root(whl_name, repo_prefix), WHEEL_FILE_LABEL
+    )