chore: switch esbuild output format from iife to esm

This setting currently blocks Berry from using ESM modules that use top-level await (e.g. ink).
yarnpkg · Jan 7, 2025 · f7d128d · f7d128d
1 parent 93a5664
commit f7d128d
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Showing 2 changed files with 13 additions and 1 deletion.
diff --git a/.yarn/versions/f5873988.yml b/.yarn/versions/f5873988.yml
@@ -0,0 +1,12 @@
+releases:
+  "@yarnpkg/builder": minor
+  "@yarnpkg/cli": minor
+
+declined:
+  - "@yarnpkg/plugin-constraints"
+  - "@yarnpkg/plugin-exec"
+  - "@yarnpkg/plugin-interactive-tools"
+  - "@yarnpkg/plugin-stage"
+  - "@yarnpkg/plugin-typescript"
+  - "@yarnpkg/plugin-version"
+  - "@yarnpkg/plugin-workspace-tools"
diff --git a/packages/yarnpkg-builder/sources/commands/build/bundle.ts b/packages/yarnpkg-builder/sources/commands/build/bundle.ts
@@ -141,7 +141,7 @@ export default class BuildBundleCommand extends Command {
           // Default extensions + .mjs
           resolveExtensions: [`.tsx`, `.ts`, `.jsx`, `.mjs`, `.js`, `.css`, `.json`],
           logLevel: `silent`,
-          format: `iife`,
+          format: `esm`,
           platform: `node`,
           plugins: [valLoader],
           minify: !this.noMinify,