[Eugene (OEvgeny)]

botframework-directlinespeech-sdk was built by tsup, Babel and webpack; as asked in #6037, it is now built by tsup only.

Changelog Entry

Changed

• Built botframework-directlinespeech-sdk with tsup only, replacing Babel and webpack, in PR #6045, by @OEvgeny

Removed

• 💥 botframework-directlinespeech-sdk no longer ships Babel's lib/ folder: deep imports from lib/ stop working where exports is ignored (webpack 4), in PR #6045, by @OEvgeny

Description

One tsup.config.ts builds the ES module, CommonJS and both browser scripts (same names and exports); lib/, stats.json and tests are no longer published.

It was not tested against a real Direct Line Speech bot: we have no Speech resource with that channel. Instead, with real Speech credentials, old and new builds gave the same exports and connection attempts via require() and in Chrome.

Design

• src/bundle.js sets window.DirectLineSpeech as webpack did; tsup's globalName only declares a var.

Specific Changes

• tsup.config.ts: 2 browser scripts from src/bundle.js

• package.json: main/require → dist/*.js; files; @babel/runtime → devDependencies

• addMetaTag.iife.spec.js: tests window.DirectLineSpeech

• docs/BUILD_SCRIPTS.md: updated

• I have added tests and executed them locally

• I have added .changelog/<PR#>-<slug>.md

• I have updated documentation

Review Checklist

This section is for contributors to review your work.

• Accessibility reviewed (tab order, content readability, alt text, color contrast)
• Browser and platform compatibilities reviewed
• CSS styles reviewed (minimal rules, no z-index)
• Documents reviewed (docs, samples, live demo)
• Internationalization reviewed (strings, unit formatting)
• package.json and package-lock.json reviewed
• Security reviewed (no data URIs, check for nonce leak)
• Tests reviewed (coverage, legitimacy)

[Copilot]

🟡 Changes recommended

The documented build sets node_env=test instead of NODE_ENV=test, leaving the browser bundle uninstrumented and invalidating the subsequent coverage verification step.

1 open issue

• Set NODE_ENV=test to enable Istanbul instrumentation · New

What changed in this PR

Consolidates the Direct Line Speech SDK build on tsup, following #6037, while preserving module formats, browser filenames, and the window.DirectLineSpeech API.

Changes:

• Replaces Babel and webpack build stages with tsup outputs for ES modules, CommonJS, and both browser scripts.
• Updates package entry points and published files, including the documented removal of lib/.
• Adds browser-export checks and updates build documentation.

File	Description
packages/​directlinespeech/​webpack.config.js	Removes the webpack build configuration.
packages/​directlinespeech/​tsup.config.ts	Adds development and production browser bundles.
packages/​directlinespeech/​src/​bundle.js	Exposes the SDK through window.DirectLineSpeech.
packages/​directlinespeech/​src/​__tests__/​addMetaTag.iife.spec.js	Checks browser exports and build metadata.
packages/​directlinespeech/​package.json	Simplifies builds and updates entry points, published files, and dependencies.
package-lock.json	Synchronizes build dependency changes.
docs/​BUILD_SCRIPTS.md	Updates output descriptions and verification steps.
.changelog/​6045-feat-directlinespeech-tsup.md	Records the build migration and breaking removal of lib/.

_{Review effort: Balanced}