fix: respect paths in tsconfig.json in dts build

src/rollup.ts

@@ -5,7 +5,7 @@ import dtsPlugin from 'rollup-plugin-dts'
 import hashbangPlugin from 'rollup-plugin-hashbang'
 import jsonPlugin from '@rollup/plugin-json'
 import { handleError } from './errors'
-import { getDeps, removeFiles } from './utils'
+import { getDeps, removeFiles, loadTsConfig } from './utils'
 import { TsResolveOptions, tsResolvePlugin } from './rollup/ts-resolve'
 
 type RollupConfig = {
@@ -44,6 +44,8 @@ const getRollupConfig = async (
     },
   }
 
+  const tsconfig = await loadTsConfig(process.cwd())
+
   return {
     inputConfig: {
       input: dtsOptions.entry,
@@ -62,7 +64,9 @@ const getRollupConfig = async (
         tsResolveOptions && tsResolvePlugin(tsResolveOptions),
         hashbangPlugin(),
         jsonPlugin(),
-        dtsPlugin(),
+        dtsPlugin({
+          compilerOptions: tsconfig.data?.compilerOptions,
+        }),
       ].filter(Boolean),
       external: [...deps, ...(options.external || [])],
     },

test/index.test.ts

@@ -580,7 +580,7 @@ test('onSuccess', async () => {
 })
 
 test('support baseUrl and paths in tsconfig.json', async () => {
-  await run(getTestName(), {
+  const { getFileContent } = await run(getTestName(), {
     'input.ts': `export * from '@/foo'`,
     'foo.ts': `export const foo = 'foo'`,
     'tsconfig.json': `{
@@ -590,4 +590,35 @@ test('support baseUrl and paths in tsconfig.json', async () => {
       }
     }`,
   })
+  expect(await getFileContent('dist/input.js')).toMatchInlineSnapshot(`
+    "\\"use strict\\";Object.defineProperty(exports, \\"__esModule\\", {value: true});// foo.ts
+    var foo = \\"foo\\";
+
+
+    exports.foo = foo;
+    "
+  `)
+})
+
+test('support baseUrl and paths in tsconfig.json in --dts build', async () => {
+  const { getFileContent } = await run(
+    getTestName(),
+    {
+      'input.ts': `export * from '@/foo'`,
+      'src/foo.ts': `export const foo = 'foo'`,
+      'tsconfig.json': `{
+      "compilerOptions": {
+        "baseUrl":".",
+        "paths":{"@/*": ["./src/*"]}
+      }
+    }`,
+    },
+    { flags: ['--dts'] }
+  )
+  expect(await getFileContent('dist/input.d.ts')).toMatchInlineSnapshot(`
+    "declare const foo = \\"foo\\";
+
+    export { foo };
+    "
+  `)
 })