fix(unplugin-dts): publicRoot mismatch of TS 6.0 rootDir

TypeScript 6.0 changes the default rootDir settings from the public
ancestor of source files to the directory of tsconfig.json. This causes
the default value of publicRoot mismatched to the resolution after an
internal TS compilation callback of file paths. When bundling types,
the built .d.ts cannot add any import from the built entry which results
in an empty module due to this mismatch.

fix #467

Author: qmhc

packages/unplugin-dts/src/core/runtime.ts

@@ -5,6 +5,7 @@ import { cpus } from 'node:os'
 
 import ts from 'typescript'
 import { createFilter } from '@rollup/pluginutils'
+import { compare } from 'compare-versions'
 import { green, red, yellow } from 'kolorist'
 import { loadProgramProcessor } from './processor'
 import { JsonResolver, SvelteResolver, VueResolver, parseResolvers } from './resolvers'
@@ -275,12 +276,16 @@ export class Runtime {
       ? ensureAbsolute(resolveConfigDir(compilerOptions.rootDir, root), root)
       : compilerOptions.composite && compilerOptions.configFilePath
         ? dirname(compilerOptions.configFilePath as string)
-        : queryPublicPath(
-          program
-            .getSourceFiles()
-            .filter(maybeEmitted)
-            .map(sourceFile => sourceFile.fileName),
-        )
+        : compare(ts.version, '6.0.0', '>=')
+          ? configPath
+            ? dirname(configPath)
+            : root
+          : queryPublicPath(
+            program
+              .getSourceFiles()
+              .filter(maybeEmitted)
+              .map(sourceFile => sourceFile.fileName),
+          )
     publicRoot = normalizePath(publicRoot)
 
     let entryRoot = options.entryRoot || publicRoot