added script to help update common.json with snapshot labsjdk builds

Author: dougxc

.ci/update_labsjdk_in_common_json.py

@@ -0,0 +1,91 @@
+#
+# ----------------------------------------------------------------------------------------------------
+#
+# Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+# ----------------------------------------------------------------------------------------------------
+
+"""
+Updates the values for the `version` field of the labsjdk-ce-latest and labsjdk-ee-latest
+objects in the common.json file of the Graal repos.
+"""
+
+import argparse
+import json
+import difflib
+from pathlib import Path
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Updates jdks.labsjdk-ce-latest.version and jdks.labsjdk-ee-latest.version values in common.json.")
+    parser.add_argument("labsjdk_versions", action="store", help="URL or path to file from which labsjdk versions will be read. " \
+                        "The content must be a JSON object with ce and ee fields that specify the new values.")
+    parser.add_argument("common_json", action="store", help="common.json file to process")
+
+    args = parser.parse_args()
+
+    common_json_path = Path(args.common_json)
+    common_json_text = common_json_path.read_text()
+    common_json = json.loads(common_json_text)
+    ce_version = common_json["jdks"]["labsjdk-ce-latest"]["version"]
+    ee_version = common_json["jdks"]["labsjdk-ee-latest"]["version"]
+
+    if args.labsjdk_versions.startswith("http://") or args.labsjdk_versions.startswith("https://"):
+        from urllib import request, error
+        url = args.labsjdk_versions
+        with request.urlopen(url, timeout=10) as response:
+            if response.status != 200:
+                raise SystemExit(f"Received non-200 status code {response.status} reading {url}")
+            content_bytes = response.read()
+            encoding = response.info().get_content_charset() or 'utf-8'
+            new_versions = content_bytes.decode(encoding)
+    else:
+        new_versions = Path(args.labsjdk_versions).read_text()
+
+    try:
+        new_versions = json.loads(new_versions)
+    except json.decoder.JSONDecodeError as e:
+        size = len(new_versions)
+        if size > 1024:
+            new_versions = new_versions[0:1024] + "... (truncated)"
+        raise SystemExit(f"Error decoding content of size {size} from {args.labsjdk_versions} as JSON: {e}\nContent:\n{new_versions}")
+
+    try:
+        new_common_json_text = common_json_text\
+            .replace(ce_version, new_versions["ce"])\
+            .replace(ee_version, new_versions["ee"])
+    except KeyError as e:
+        raise SystemExit(f"Error extracting versions from JSON in {args.labsjdk_versions}: Missing value for {e}\nJSON:\n{json.dumps(new_versions, indent=2)}")
+    
+    if new_common_json_text == common_json_text:
+        print(f"No change to {common_json_path}")
+    else:
+        patch = "\n".join((line for line in difflib.unified_diff(
+            common_json_text.split("\n"),
+            new_common_json_text.split("\n"),
+            fromfile=f"a/{common_json_path.name}",
+            tofile=f"b/{common_json_path.name}",
+            lineterm=""
+        )))
+        print(f"Updated {common_json_path} with this patch:\n{patch}")
+        common_json_path.write_text(new_common_json_text)