pkgs/historical-modules: Add bun 1.2.16 and update upgrade-map

Author: mattppal

pkgs/historical-modules/default.nix

@@ -24,6 +24,13 @@ let
         displayVersion = "1.1.45";
       };
     }
+    {
+      moduleId = "bun-1.2";
+      commit = "a3a6925";
+      overrides = {
+        displayVersion = "1.2.16";
+      };
+    }
     {
       moduleId = "clojure-1.11";
       commit = "4327245815e8500233ed3af1cbb674bd147f673b";

pkgs/modules/bun/default.nix

@@ -1,3 +1,10 @@
+# NOTE: Unlike Node.js, nixpkgs doesn't provide versioned bun attributes (e.g., bun_1_3).
+# This module uses pkgs.bun which tracks the latest version.
+#
+# When nixpkgs updates bun to a new major.minor version:
+# 1. Add the previous version to pkgs/historical-modules/default.nix, pinned to the
+#    commit before the nixpkgs update
+# 2. Update pkgs/upgrade-map/default.nix to chain the old version to the new one
 { bun }:
 { pkgs, lib, ... }:
 

pkgs/upgrade-map/default.nix

@@ -10,6 +10,9 @@ let
     "bun-0.5" = "bun-0.6";
     "bun-0.6" = "bun-0.7";
     "bun-0.7" = "bun-1.0";
+    "bun-1.0" = "bun-1.1";
+    "bun-1.1" = "bun-1.2";
+    "bun-1.2" = "bun-1.3";
     "dart-3.0" = "dart-3.1";
     "dart-3.1" = "dart-3.2";
     "dart-3.2" = "dart-3.3";