feat: emit warp config instead of tshy for Azure monorepo packages

packages/autorest.typescript/package.json

@@ -3,9 +3,9 @@
   "version": "6.0.59",
   "scripts": {
     "build": "tsc -p . && npm run copyFiles",
-    "build:test:browser:rlc": "tsc -p tsconfig.browser-test.json && ts-node test/commands/prepare-deps.ts --browser && webpack --config webpack.config.test.js --env mode=rlc",
-    "build:test:browser": "tsc -p tsconfig.browser-test.json && ts-node test/commands/prepare-deps.ts --removal && webpack --config webpack.config.test.js --env mode=hlc",
-    "check:tree": "ts-node ./test/commands/check-clean-tree.ts",
+    "build:test:browser:rlc": "tsc -p tsconfig.browser-test.json && tsx test/commands/prepare-deps.ts --browser && webpack --config webpack.config.test.js --env mode=rlc",
+    "build:test:browser": "tsc -p tsconfig.browser-test.json && tsx test/commands/prepare-deps.ts --removal && webpack --config webpack.config.test.js --env mode=hlc",
+    "check:tree": "tsx ./test/commands/check-clean-tree.ts",
     "format": "echo skipped",
     "pack": "npm pack 2>&1",
     "clean": "rimraf --glob test-browser test/**/node_modules",
@@ -22,26 +22,26 @@
     "integration-test:new": "npm-run-all start-test-server generate-and-test integration-test:alone stop-test-server",
     "integration-test:browser": "npm run build:test:browser && karma start karma.conf.js",
     "generate-and-test": "npm-run-all -s build generate-swaggers integration-test:alone integration-test:browser",
-    "integration-test:alone": "mocha -r ts-node/register --timeout 2000 \"./test/integration/**/!(sampleTest).spec.ts\"",
+    "integration-test:alone": "mocha --require tsx/cjs --timeout 2000 \"./test/integration/**/!(sampleTest).spec.ts\"",
     "rlc-integration-test": "npm run start-test-server:v2 & npm run rlc-generate-and-test && npm run stop-test-server",
     "rlc-integration-test:new": "npm-run-all start-test-server rlc-generate-and-test rlc-integration-test:alone stop-test-server",
     "rlc-integration-test:browser": "npm run build:test:browser:rlc && karma start karma.conf.js",
     "rlc-generate-and-test": "npm-run-all -s build rlc-generate-swaggers rlc-integration-test:alone rlc-integration-test:browser",
-    "rlc-integration-test:alone": "ts-node test/commands/prepare-deps.ts && mocha -r ts-node/register --timeout 2000 \"./test/rlcIntegration/!(sampleTest).spec.ts\"",
-    "start-test-server": "ts-node test/commands/start-server.ts",
+    "rlc-integration-test:alone": "tsx test/commands/prepare-deps.ts && mocha --require tsx/cjs --timeout 2000 \"./test/rlcIntegration/!(sampleTest).spec.ts\"",
+    "start-test-server": "tsx test/commands/start-server.ts",
     "start-test-server:v2": "autorest-testserver run --appendCoverage",
     "stop-test-server": "autorest-testserver stop",
     "debug": "node --inspect-brk ./dist/src/main.js",
-    "generate-swaggers": "ts-node ./test/commands/test-swagger-gen.ts",
-    "rlc-generate-swaggers": "ts-node ./test/commands/test-swagger-gen.ts -- rlc",
+    "generate-swaggers": "tsx ./test/commands/test-swagger-gen.ts",
+    "rlc-generate-swaggers": "tsx ./test/commands/test-swagger-gen.ts -- rlc",
     "validate-version-tolerance": "npm run start-test-server:v2 & npm run generate-version-tolerance && npm run generate-version-tolerance:tests && npm run test-version-tolerance && npm run stop-test-server",
-    "generate-version-tolerance": "ts-node ./test/commands/version-tolerance.ts",
-    "generate-version-tolerance:tests": "ts-node ./test/commands/version-tolerance.ts --test-gen",
+    "generate-version-tolerance": "tsx ./test/commands/version-tolerance.ts",
+    "generate-version-tolerance:tests": "tsx ./test/commands/version-tolerance.ts --test-gen",
     "regen-test-baselines": "npm run generate-swaggers && npm run rlc-generate-swaggers && npm run generate-version-tolerance && npm run smoke-test",
-    "test-version-tolerance": "mocha -r ts-node/register --timeout 2000 \"./test/version-tolerance/**/!(sampleTest).spec.ts\"",
+    "test-version-tolerance": "mocha --require tsx/cjs --timeout 2000 \"./test/version-tolerance/**/!(sampleTest).spec.ts\"",
     "clone:specs": "git clone -c core.longpaths=true https://github.com/Azure/azure-rest-api-specs.git ./.tmp/specs",
-    "smoke-test": "ts-node ./test/commands/smoke-test.ts",
-    "copyFiles": "ts-node ./src/utils/copyFiles.ts"
+    "smoke-test": "tsx ./test/commands/smoke-test.ts",
+    "copyFiles": "tsx ./src/utils/copyFiles.ts"
   },
   "browser": {
     "./test-browser/utils/stream-helpers.js": "./test-browser/utils/stream-helpers.browser.js",
@@ -112,6 +112,7 @@
     "puppeteer": "^22.2.0",
     "sinon": "^10.0.0",
     "source-map-loader": "^1.0.0",
+    "tsx": "^4.19.0",
     "ts-node": "^8.5.2",
     "wait-port": "^0.2.6",
     "webpack": "^5.72.0",

packages/autorest.typescript/test/rlcIntegration/generated/dpgCustomization/package.json

@@ -54,7 +54,6 @@
     "@azure-tools/test-recorder": "workspace:^",
     "@azure-tools/test-utils-vitest": "workspace:^",
     "@azure/dev-tool": "workspace:^",
-    "tshy": "catalog:",
     "@azure/eslint-plugin-azure-sdk": "workspace:^",
     "@azure/identity": "catalog:internal",
     "@types/node": "catalog:",

packages/autorest.typescript/test/rlcIntegration/generated/httpInfrastructureRest/package.json

@@ -52,7 +52,6 @@
     "@azure-tools/test-recorder": "workspace:^",
     "@azure-tools/test-utils-vitest": "workspace:^",
     "@azure/dev-tool": "workspace:^",
-    "tshy": "catalog:",
     "@azure/eslint-plugin-azure-sdk": "workspace:^",
     "@azure/identity": "catalog:internal",
     "@types/node": "catalog:",

packages/autorest.typescript/test/rlcIntegration/generated/multipleUrlParameters/package.json

@@ -52,7 +52,6 @@
     "@azure-tools/test-recorder": "workspace:^",
     "@azure-tools/test-utils-vitest": "workspace:^",
     "@azure/dev-tool": "workspace:^",
-    "tshy": "catalog:",
     "@azure/eslint-plugin-azure-sdk": "workspace:^",
     "@azure/identity": "catalog:internal",
     "@types/node": "catalog:",

packages/autorest.typescript/test/rlcIntegration/generated/securityAADRest/package.json

@@ -52,7 +52,6 @@
     "@azure-tools/test-recorder": "workspace:^",
     "@azure-tools/test-utils-vitest": "workspace:^",
     "@azure/dev-tool": "workspace:^",
-    "tshy": "catalog:",
     "@azure/eslint-plugin-azure-sdk": "workspace:^",
     "@azure/identity": "catalog:internal",
     "@types/node": "catalog:",

packages/autorest.typescript/test/rlcIntegration/generated/securityKeyRest/package.json

@@ -52,7 +52,6 @@
     "@azure-tools/test-recorder": "workspace:^",
     "@azure-tools/test-utils-vitest": "workspace:^",
     "@azure/dev-tool": "workspace:^",
-    "tshy": "catalog:",
     "@azure/eslint-plugin-azure-sdk": "workspace:^",
     "@azure/identity": "catalog:internal",
     "@types/node": "catalog:",

packages/rlc-common/src/index.ts

@@ -27,6 +27,7 @@ export * from "./metadata/buildApiExtractorConfig.js";
 export * from "./metadata/buildPackageFile.js";
 export * from "./metadata/buildRollupConfig.js";
 export * from "./metadata/buildTsConfig.js";
+export * from "./metadata/buildWarpConfig.js";
 export * from "./metadata/buildESLintConfig.js";
 export * from "./metadata/buildLicenseFile.js";
 export * from "./metadata/buildVitestConfig.js";

packages/rlc-common/src/metadata/buildPackageFile.ts

@@ -10,7 +10,8 @@ import {
 } from "../helpers/packageUtil.js";
 import {
   PackageCommonInfoConfig,
-  getTshyConfig
+  getTshyConfig,
+  resolveWarpExports
 } from "./packageJson/packageCommon.js";
 import { Project, SourceFile } from "ts-morph";
 import { RLCModel } from "../interfaces.js";
@@ -118,13 +119,19 @@ export function updatePackageFile(
     packageInfo = existingFilePathOrContent;
   }
 
-  // Update tshy.exports if exports are provided and tshy exists
-  if (needsExportsUpdate && packageInfo.tshy) {
-    const newTshy = getTshyConfig({
-      exports,
-      azureSdkForJs: model.options?.azureSdkForJs
-    } as PackageCommonInfoConfig);
-    packageInfo.tshy.exports = newTshy.exports;
+  // Update exports based on build system (warp for monorepo, tshy for others)
+  if (needsExportsUpdate) {
+    if (model.options?.azureSdkForJs) {
+      // Warp: update resolved exports in package.json
+      packageInfo.exports = resolveWarpExports(exports);
+    } else if (packageInfo.tshy) {
+      // Tshy: update tshy.exports in package.json
+      const newTshy = getTshyConfig({
+        exports,
+        azureSdkForJs: model.options?.azureSdkForJs
+      } as PackageCommonInfoConfig);
+      packageInfo.tshy.exports = newTshy.exports;
+    }
   }
 
   // Update LRO dependencies for Azure packages

packages/rlc-common/src/metadata/buildWarpConfig.ts

@@ -0,0 +1,64 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+import { RLCModel } from "../interfaces.js";
+import { isAzureMonorepoPackage } from "../helpers/packageUtil.js";
+
+export interface WarpConfigOptions {
+  /** Source-level exports, e.g. { ".": "./src/index.ts", "./models": "./src/models/index.ts" } */
+  exports?: Record<string, string>;
+}
+
+/**
+ * Builds a warp.config.yml file for Azure SDK monorepo packages.
+ * Only generated when azureSdkForJs is true.
+ */
+export function buildWarpConfig(
+  model: RLCModel,
+  { exports }: WarpConfigOptions = {}
+) {
+  if (!isAzureMonorepoPackage(model)) {
+    return;
+  }
+
+  if (model.options?.moduleKind !== "esm") {
+    return;
+  }
+
+  const allExports: Record<string, string> = {
+    "./package.json": "./package.json",
+    ".": "./src/index.ts",
+    ...exports
+  };
+
+  const lines: string[] = [];
+  lines.push("# warp.config.yml — build configuration");
+  lines.push("");
+  lines.push("exports:");
+  for (const [key, value] of Object.entries(allExports)) {
+    lines.push(`  ${JSON.stringify(key)}: ${JSON.stringify(value)}`);
+  }
+  lines.push("");
+  lines.push("targets:");
+  lines.push("  - name: browser");
+  lines.push('    tsconfig: "../../../tsconfig.src.browser.json"');
+  lines.push('    polyfillSuffix: "-browser"');
+  lines.push("");
+  lines.push("  - name: react-native");
+  lines.push('    tsconfig: "../../../tsconfig.src.react-native.json"');
+  lines.push('    polyfillSuffix: "-react-native"');
+  lines.push("");
+  lines.push("  - name: esm");
+  lines.push("    condition: import");
+  lines.push('    tsconfig: "../../../tsconfig.src.esm.json"');
+  lines.push("");
+  lines.push("  - name: commonjs");
+  lines.push("    condition: require");
+  lines.push('    tsconfig: "../../../tsconfig.src.cjs.json"');
+  lines.push("");
+
+  return {
+    path: "warp.config.yml",
+    content: lines.join("\n")
+  };
+}

packages/rlc-common/src/metadata/packageJson/buildAzureMonorepoPackage.ts

@@ -73,7 +73,6 @@ export function getAzureMonorepoDependencies(config: AzureMonorepoInfoConfig) {
       "@azure-tools/test-recorder": "workspace:^",
       "@azure-tools/test-utils-vitest": "workspace:^",
       "@azure/dev-tool": "workspace:^",
-      tshy: "catalog:",
       "@azure/eslint-plugin-azure-sdk": "workspace:^",
       "@azure/identity": "catalog:internal",
       "@types/node": "catalog:",

packages/rlc-common/src/metadata/packageJson/packageCommon.ts

@@ -50,10 +50,17 @@ export function getCommonPackageDevDependencies(
   };
 }
 
-function getEsmDevDependencies({ moduleKind }: PackageCommonInfoConfig) {
+function getEsmDevDependencies({
+  moduleKind,
+  azureSdkForJs
+}: PackageCommonInfoConfig) {
   if (moduleKind !== "esm") {
     return {};
   }
+  // Azure monorepo packages use warp (invoked via dev-tool), no tshy needed
+  if (azureSdkForJs) {
+    return {};
+  }
   return {
     tshy: "^2.0.0"
   };
@@ -97,6 +104,19 @@ function getEsmEntrypointInformation(config: PackageCommonInfoConfig) {
     return;
   }
 
+  // Azure monorepo packages use warp instead of tshy
+  if (config.azureSdkForJs) {
+    return {
+      type: "module",
+      main: "./dist/commonjs/index.js",
+      module: "./dist/esm/index.js",
+      types: "./dist/commonjs/index.d.ts",
+      browser: "./dist/browser/index.js",
+      "react-native": "./dist/react-native/index.js",
+      exports: resolveWarpExports(config.exports)
+    };
+  }
+
   return {
     tshy: getTshyConfig(config),
     type: "module",
@@ -105,6 +125,54 @@ function getEsmEntrypointInformation(config: PackageCommonInfoConfig) {
   };
 }
 
+/**
+ * Resolve source-level exports to dist-level exports for warp.
+ * Converts { ".": "./src/index.ts" } to the nested condition map with
+ * browser/import/require conditions pointing to dist/ paths.
+ */
+export function resolveWarpExports(
+  sourceExports?: Record<string, any>
+): Record<string, any> {
+  const exports: Record<string, any> = {};
+  const allExports: Record<string, string> = {
+    "./package.json": "./package.json",
+    ".": "./src/index.ts",
+    ...sourceExports
+  };
+
+  for (const [subpath, sourcePath] of Object.entries(allExports)) {
+    // Pass-through entries (e.g. "./package.json": "./package.json")
+    if (!/\.ts$/.test(sourcePath)) {
+      exports[subpath] = sourcePath;
+      continue;
+    }
+
+    // Convert source path to dist path: "./src/foo/index.ts" -> "foo/index"
+    const relPath = sourcePath.replace(/^\.\/src\//, "").replace(/\.ts$/, "");
+
+    exports[subpath] = {
+      browser: {
+        types: `./dist/browser/${relPath}.d.ts`,
+        default: `./dist/browser/${relPath}.js`
+      },
+      "react-native": {
+        types: `./dist/react-native/${relPath}.d.ts`,
+        default: `./dist/react-native/${relPath}.js`
+      },
+      import: {
+        types: `./dist/esm/${relPath}.d.ts`,
+        default: `./dist/esm/${relPath}.js`
+      },
+      require: {
+        types: `./dist/commonjs/${relPath}.d.ts`,
+        default: `./dist/commonjs/${relPath}.js`
+      }
+    };
+  }
+
+  return exports;
+}
+
 export function getTshyConfig(config: PackageCommonInfoConfig) {
   const { exports = {} } = config;
   const tshyConfig: Record<string, any> = {