fix: ensure lib name is valid

fix #247

Author: qmhc

examples/ts/package.json

@@ -7,6 +7,7 @@
   "scripts": {
     "build": "DEBUG=\"vite-plugin-dts:bundle\" vite build"
   },
+  "types": "dist/ts-test.d.ts",
   "devDependencies": {
     "tslib": "^2.5.3",
     "typescript": "5.0.4",

examples/ts/src/index.ts

@@ -15,6 +15,7 @@ export { manualDts } from './manual-dts'
 export { ParametersTest, test, method } from './test'
 
 export { data }
+export default data
 
 export type { User } from './types'
 export type { AliasType } from '@alias/type'

examples/ts/vite.config.ts

@@ -15,7 +15,7 @@ export default defineConfig({
   build: {
     lib: {
       entry: [resolve(__dirname, 'src/index.ts'), resolve(__dirname, 'src/main.ts')],
-      name: 'Test',
+      name: 'ts-test',
       formats: ['es']
     }
   },
@@ -26,8 +26,8 @@ export default defineConfig({
       exclude: ['src/ignore'],
       // aliasesExclude: [/^@components/],
       staticImport: true,
-      rollupTypes: true,
-      insertTypesEntry: true
+      // insertTypesEntry: true,
+      rollupTypes: true
     })
   ]
 })

src/plugin.ts

@@ -28,6 +28,7 @@ import {
   removeDirIfEmpty,
   resolve,
   runParallel,
+  toCapitalCase,
   tryGetPkgPath,
   wrapPromise
 } from './utils'
@@ -289,7 +290,7 @@ export function dtsPlugin(options: PluginOptions = {}): import('vite').Plugin {
       host = ts.createCompilerHost(compilerOptions, true)
       program = createProgram({ host, rootNames, options: compilerOptions })
 
-      libName = libName || '_default'
+      libName = toCapitalCase(libName || '_default')
       indexName = indexName || defaultIndex
 
       const maybeEmitted = (sourceFile: ts.SourceFile) => {

src/utils.ts

@@ -306,3 +306,19 @@ export function tryGetPkgPath(beginPath: string) {
 
   return tryGetPkgPath(parentDir)
 }
+
+type CapitalCase<T extends string> = T extends `${infer First} ${infer Rest}`
+  ? CapitalCase<`${First}-${Rest}`>
+  : T extends `${infer First}-${infer Rest}`
+    ? `${Capitalize<First>}${CapitalCase<Rest>}`
+    : Capitalize<T>
+
+export function toCapitalCase<T extends string>(value: T) {
+  value = value.trim().replace(/\s+/g, '-') as T
+  value = value.replace(/-+(\w)/g, (_, char) => (char ? char.toUpperCase() : '')) as T
+
+  return (value.charAt(0).toLocaleUpperCase() + value.slice(1)).replace(
+    /[^\w]/g,
+    ''
+  ) as CapitalCase<T>
+}

tests/utils.spec.ts

@@ -13,7 +13,8 @@ import {
   isRegExp,
   mergeObjects,
   normalizePath,
-  queryPublicPath
+  queryPublicPath,
+  toCapitalCase
 } from '../src/utils'
 
 describe('utils tests', () => {
@@ -149,4 +150,18 @@ describe('utils tests', () => {
       expect(base64VLQEncode([i - 255])).toEqual(snapshots[i])
     }
   })
+
+  it('test: toCapitalCase', () => {
+    expect(toCapitalCase('abc')).toEqual('Abc')
+    expect(toCapitalCase('aa-bb-cc')).toEqual('AaBbCc')
+    expect(toCapitalCase('aa_bb_cc')).toEqual('Aa_bb_cc')
+    expect(toCapitalCase('_aa-bb-cc')).toEqual('_aaBbCc')
+    expect(toCapitalCase('aa--bb')).toEqual('AaBb')
+    expect(toCapitalCase('aa bb cc')).toEqual('AaBbCc')
+    expect(toCapitalCase('aa -bb- cc')).toEqual('AaBbCc')
+    expect(toCapitalCase(' aa bb cc')).toEqual('AaBbCc')
+    expect(toCapitalCase(' aa bb cc ')).toEqual('AaBbCc')
+    expect(toCapitalCase('-aa bb cc ')).toEqual('AaBbCc')
+    expect(toCapitalCase(' -aa bb cc -')).toEqual('AaBbCc')
+  })
 })