Add --json to save candidates to orphaned_backports.json

orphaned_backports.py

@@ -5,7 +5,7 @@
 """
 
 # /// script
-# requires-python = ">=3.9"
+# requires-python = ">=3.11"
 # dependencies = [
 #     "ghapi",
 #     "rich",
@@ -15,9 +15,12 @@
 from __future__ import annotations
 
 import argparse
+import datetime as dt
+import json
 import os
 from typing import Any, TypeAlias
 
+from fastcore.xtras import obj2dict
 from ghapi.all import GhApi, paged  # pip install ghapi
 from rich import print  # pip install rich
 
@@ -128,6 +131,7 @@ def main() -> None:
         ),
         help="Sort by",
     )
+    parser.add_argument("-j", "--json", action="store_true", help="output to JSON file")
     parser.add_argument(
         "-x", "--dry-run", action="store_true", help="show but don't open PRs"
     )
@@ -150,6 +154,21 @@ def main() -> None:
         if not args.dry_run:
             os.system(cmd)
 
+    if args.json:
+        # Use same name as this .py but with .json
+        filename = os.path.splitext(__file__)[0] + ".json"
+        now = dt.datetime.now(dt.UTC).isoformat()
+        with open(filename, "w", encoding="utf-8") as f:
+            json.dump(
+                {
+                    "last_update": now,
+                    "candidates": [obj2dict(c) for c in candidates],
+                },
+                f,
+                indent=2,
+            )
+            print(f"Saved candidates to {filename}")
+
 
 if __name__ == "__main__":
     main()