build(esbuild): migrate from rollup to rslib

[ScriptedAlchemy]

Summary

• Replace Rollup with RSLib to simplify configuration and speed up builds
• Switch Nx target to run rslib; add rslib.config.ts and @rslib/core
• Remove Rollup config/deps; update ESLint ignore and tsconfig rootDir
• Improve runtime sourcemaps for better debugging
• Remove obsolete main.py; refresh lockfile

Details

This modernizes the esbuild package build:

• Use @rslib/core for dual ESM/CJS outputs with DTS once from ESM
• Keep MF runtime packages external; copy src/resolve to dist
• Respect FEDERATION_DEBUG by switching to iife/var and disabling externals for debug output

Impact

• Smaller, simpler build pipeline with fewer moving parts
• Clearer sourcemaps in runtime for easier debugging
• No breaking public API changes expected

Testing

• pnpm -w build:pkg and pnpm -w test:pkg should pass
• nx run esbuild:build:debug now proxies to rslib build with FEDERATION_DEBUG=true

Notes

Lockfile changes include adding @rslib/core and removing Rollup deps for esbuild package only.

[changeset-bot]

🦋 Changeset detected

Latest commit: 467614b

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 36 packages

Name	Type
@module-federation/esbuild	Patch
@module-federation/runtime	Patch
@module-federation/devtools	Patch
@module-federation/data-prefetch	Patch
@module-federation/dts-plugin	Patch
@module-federation/metro	Patch
@module-federation/modern-js	Patch
@module-federation/nextjs-mf	Patch
@module-federation/node	Patch
@module-federation/retry-plugin	Patch
@module-federation/runtime-tools	Patch
@module-federation/webpack-bundler-runtime	Patch
@module-federation/bridge-react	Patch
@module-federation/bridge-vue3	Patch
@module-federation/enhanced	Patch
@module-federation/metro-plugin-rnc-cli	Patch
@module-federation/metro-plugin-rnef	Patch
@module-federation/rsbuild-plugin	Patch
@module-federation/rspack	Patch
@module-federation/inject-external-runtime-core-plugin	Patch
@module-federation/rspress-plugin	Patch
@module-federation/storybook-addon	Patch
@module-federation/modernjsapp	Patch
remote5	Patch
website-new	Patch
@module-federation/sdk	Patch
@module-federation/managers	Patch
@module-federation/manifest	Patch
@module-federation/third-party-dts-extractor	Patch
@module-federation/bridge-shared	Patch
@module-federation/bridge-react-webpack-plugin	Patch
@module-federation/error-codes	Patch
@module-federation/runtime-core	Patch
create-module-federation	Patch
@module-federation/cli	Patch
@module-federation/utilities	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

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[ScriptedAlchemy]

@codex double check pr

[chatgpt-codex-connector]

Codex Review: Here are some suggestions.

core/packages/esbuild/package.json

Lines 5 to 7 in 040fae2

	"main": "./dist/index.cjs.js",
	"module": "./dist/index.esm.js",
	"types": "./dist/index.d.ts",

[P1] Align esbuild package exports with rslib output filenames

The new rslib build emits default filenames like dist/index.js and dist/index.mjs for the CJS/ESM bundles, but the package metadata still points at dist/index.cjs.js and dist/index.esm.js (and the sub‑exports reference plugin.cjs.js, plugin.esm.js, etc.). After this migration the referenced files will not be generated, so requiring or importing @module-federation/esbuild or its subpaths will throw MODULE_NOT_FOUND. Configure rslib’s output to keep the old naming scheme or update these paths to the names rslib actually produces.

---

Reply with @codex fix comments to fix any unresolved comments.

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[ScriptedAlchemy]

@codex fix comments and also add a changeset

[chatgpt-codex-connector]

Summary

• Updated the esbuild package metadata to use the default rslib filenames, switching main to dist/index.js and module to dist/index.mjs packages/esbuild/package.jsonL5-L7
• Realigned package exports and type mappings to reference rslib’s *.js and *.mjs outputs and pruned outdated entries packages/esbuild/package.jsonL21-L51
• Added a changeset to publish patch versions of @module-federation/esbuild and @module-federation/runtime .changeset/strong-kings-act.mdL1-L6

Testing

• ⚠️ pnpm -w build:pkg (failed: No existing Nx Cloud client and failed to download new version)
• ⚠️ pnpm -w test:pkg (failed: No existing Nx Cloud client and failed to download new version)

View task →

[ScriptedAlchemy]

@codex can we remove the sourcemap changes done to the runtime rollup config?

[chatgpt-codex-connector]

Summary

• Removed custom sourcemap options (sourcemapExcludeSources and sourcemapPathTransform) from the runtime Rollup configuration, reverting to Rollup’s default sourcemap behavior and retaining only sourcemap: true before chunk and filename settings packages/runtime/rollup.config.cjsL26-L67

Testing

• ⚠️ NX_CLOUD_DISABLED=true pnpm -w build:pkg — No existing Nx Cloud client and failed to download new version
• ⚠️ NX_CLOUD_DISABLED=true pnpm -w test:pkg — No existing Nx Cloud client and failed to download new version

View task →