vimPlugins: Store deprecation date.

pkgs/misc/vim-plugins/aliases.nix

@@ -31,8 +31,8 @@ let
                               (checkInPkgs n alias)))
                      aliases;
 
-  deprecations = lib.mapAttrs (old: new:
+  deprecations = lib.mapAttrs (old: info:
-    throw "${old} was renamed to ${new}. Please update to ${new}."
+    throw "${old} was renamed to ${info.new} on ${info.date}. Please update to ${info.new}."
   ) (builtins.fromJSON (builtins.readFile ./deprecated.json));
 
 in

pkgs/misc/vim-plugins/deprecated.json

@@ -1,6 +1,18 @@
 {
-    "gist-vim": "vim-gist",
+    "gist-vim": {
-    "vim-jade": "vim-pug",
+        "date": "2020-03-27",
-    "vundle": "Vundle.vim",
+        "new": "vim-gist"
-    "youcompleteme": "YouCompleteMe"
+    },
+    "vim-jade": {
+        "date": "2020-03-27",
+        "new": "vim-pug"
+    },
+    "vundle": {
+        "date": "2020-03-27",
+        "new": "Vundle.vim"
+    },
+    "youcompleteme": {
+        "date": "2020-03-27",
+        "new": "YouCompleteMe"
+    }
 }

pkgs/misc/vim-plugins/update.py

@@ -420,13 +420,17 @@ def rewrite_input(input_file: Path, output_file: Path, redirects: dict):
     if redirects:
         lines = [redirects.get(line, line) for line in lines]
 
+        cur_date_iso = datetime.now().strftime("%Y-%m-%d")
         with open(DEPRECATED, "r") as f:
             deprecations = json.load(f)
         for old, new in redirects.items():
             old_name = old.split("/")[1].split(" ")[0].strip("\n")
             new_name = new.split("/")[1].split(" ")[0].strip("\n")
             if old_name != new_name:
-                deprecations[old_name] = new_name
+                deprecations[old_name] = {
+                    "new": new_name,
+                    "date": cur_date_iso,
+                }
         with open(DEPRECATED, "w") as f:
             json.dump(deprecations, f, indent=4, sort_keys=True)