Add `"bun": { "alwaysBundle": ["packageName"] },` to package.json

This is for monorepos that symlink directories into node_modules. For example, if you have a design system in your monorepo, you probably want to always bundle that.

1 files changed, 23 insertions, 0 deletions

diff --git a/src/resolver/package_json.zig b/src/resolver/package_json.zig
index fa8603569..bff445bf2 100644
--- a/src/resolver/package_json.zig
+++ b/src/resolver/package_json.zig
@@ -55,6 +55,8 @@ pub const PackageJSON = struct {
     version: string = "",
     hash: u32 = 0xDEADBEEF,
 
+    always_bundle: []string = &.{},
+
     // Present if the "browser" field is present. This field is intended to be
     // used by bundlers and lets you redirect the paths of certain 3rd-party
     // modules that don't work in the browser to other modules that shim that
@@ -527,6 +529,27 @@ pub const PackageJSON = struct {
             }
         }
 
+        if (json.asProperty("bun")) |bun_json| {
+            if (bun_json.expr.asProperty("alwaysBundle")) |bundle_| {
+                if (bundle_.expr.data == .e_array) {
+                    var always_bundle_count: u16 = 0;
+                    const array = bundle_.expr.data.e_array.items;
+                    for (array) |item| {
+                        always_bundle_count += @intCast(u16, @boolToInt(item.data == .e_string and item.data.e_string.utf8.len > 0));
+                    }
+                    package_json.always_bundle = r.allocator.alloc(string, always_bundle_count) catch unreachable;
+
+                    var i: u16 = 0;
+                    for (array) |item| {
+                        if (!(item.data == .e_string and item.data.e_string.utf8.len > 0)) continue;
+                        package_json.always_bundle[i] = item.asString(r.allocator).?;
+                        i += 1;
+                    }
+                    // for (var i = 0; i < bundle_.expr.data.e_array.len; i++) {
+                }
+            }
+        }
+
         // Read the "main" fields
         for (r.opts.main_fields) |main| {
             if (json.asProperty(main)) |main_json| {