updates

Backend/venv/lib/python3.12/site-packages/packageurl/utils.py

@@ -0,0 +1,64 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) the purl authors
+# SPDX-License-Identifier: MIT
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+# Visit https://github.com/package-url/packageurl-python for support and
+# download.
+
+from typing import Optional
+from typing import Union
+
+from packageurl import PackageURL
+
+
+def get_golang_purl(go_package: str):
+    """
+    Return a PackageURL object given an imported ``go_package``
+    or go module "name version" string as seen in a go.mod file.
+    >>> get_golang_purl(go_package="github.com/gorilla/mux v1.8.1")
+    PackageURL(type='golang', namespace='github.com/gorilla', name='mux', version='v1.8.1', qualifiers={}, subpath=None)
+    """
+    if not go_package:
+        return
+    version = None
+    # Go package in *.mod files is represented like this
+    # package version
+    # github.com/gorilla/mux v1.8.1
+    # https://github.com/moby/moby/blob/6c10086976d07d4746e03dcfd188972a2f07e1c9/vendor.mod#L51
+    if "@" in go_package:
+        raise Exception(f"{go_package} should not contain ``@``")
+    if " " in go_package:
+        go_package, _, version = go_package.rpartition(" ")
+    parts = go_package.split("/")
+    if not parts:
+        return
+    name = parts[-1]
+    namespace = "/".join(parts[:-1])
+    return PackageURL(type="golang", namespace=namespace, name=name, version=version)
+
+
+def ensure_str(value: Optional[Union[str, bytes]]) -> Optional[str]:
+    if value is None:
+        return None
+    if isinstance(value, bytes):
+        return value.decode("utf-8")  # or whatever encoding is right
+    return value