Add script to generate bundled provides

Signed-off-by: mulhern <[email protected]>

release_management/gen_bundled_provides.py

@@ -0,0 +1,91 @@
+#!/usr/bin/python3
+#
+# Copyright 2023 Red Hat, Inc.
+#
+# 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.
+"""
+Generate vendored provides list from vendor tarfile.
+"""
+
+# isort: STDLIB
+import argparse
+import os
+import sys
+import tarfile
+import tomllib
+
+
+def main():
+    """
+    Main function
+    """
+
+    parser = argparse.ArgumentParser(
+        description=(
+            "Generate a list of bundled provides suitable for including in an "
+            "rpm spec file. Include in the list only those dependencies which "
+            "have source code in the vendor tarfile. Prints list to stdout."
+        )
+    )
+
+    parser.add_argument(
+        "vendor_tarfile",
+        action="store",
+        help="path to vendor tarfile",
+        type=os.path.abspath,
+    )
+
+    namespace = parser.parse_args()
+
+    with tarfile.open(namespace.vendor_tarfile, "r") as tar:
+        for member in tar.getmembers():
+            components = member.name.split("/")
+
+            if (
+                len(components) == 3
+                and components[0] == "vendor"
+                and components[2] == "Cargo.toml"
+            ):
+                manifest = tar.extractfile(member)
+                metadata = tomllib.load(manifest)
+                cargo_name = components[1]
+                package = metadata["package"]
+                package_version = package["version"]
+                continue
+
+            if (
+                len(components) == 4
+                and components[0] == "vendor"
+                and components[2] == "src"
+                and components[3] == "lib.rs"
+            ):
+                size = member.size
+                if size != 0:
+                    if cargo_name == components[1]:
+                        print(
+                            f"Provides: bundled(crate({components[1]})) = {package_version}"
+                        )
+                    else:
+                        raise RuntimeError(
+                            "Found an entry for bundled provides, but no version information"
+                        )
+
+    return 0
+
+
+if __name__ == "__main__":
+    try:
+        main()
+    except Exception as err:  # pylint: disable=broad-except
+        print(err)
+        sys.exit(1)