fix: use TypeScript syntax in source code

Author: SimenB

build.ts

@@ -1,12 +1,13 @@
 import { resolve, dirname } from 'path'
-import { copy, copyFile, outputFile, readJSON, writeJSON } from 'fs-extra'
+import { copy, outputFile } from 'fs-extra'
 import ncc from '@vercel/ncc'
 
 async function main() {
   const rootDir = __dirname
+  const declarationFileName = 'jimp.d.ts'
   const input = resolve(rootDir, 'src', 'jimp.ts')
   const output = resolve(rootDir, 'dist', 'jimp.cjs')
-  const pkg = resolve(rootDir, 'package.json')
+  const declaration = resolve(rootDir, 'dist', declarationFileName)
 
   const opts = {
     cache: false,
@@ -15,11 +16,12 @@ async function main() {
   }
 
   // @ts-ignore
-  let { code } = await ncc(input, opts)
+  let { code, assets } = await ncc(input, opts)
 
   code = code.replace(/new Buffer/g, 'new JIMPBUffer')
 
   await outputFile(output, code)
+  await outputFile(declaration , assets[declarationFileName].source)
 
   const jimpDir = dirname(require.resolve('jimp/package.json'))
   // const { version } = await readJSON(resolve(jimpDir, 'package.json'))
@@ -28,8 +30,6 @@ async function main() {
 
   await copy(resolve(jimpDir, 'fonts'), resolve(rootDir, 'fonts'))
 
-  await copyFile(resolve(jimpDir, 'types/ts3.1/index.d.ts'), resolve(rootDir, 'dist/jimp.d.ts'))
-
   // console.log('jimp-compact@' + version)
 }
 

src/jimp.ts

@@ -16,4 +16,4 @@ class JIMPBUffer {
 
 globalThis.JIMPBUffer = JIMPBUffer
 
-module.exports = jimp
+export = jimp