feat: Upgrade to esbuild 0.9 (#210)

BREAKING CHANGE:

Require esbuild 0.9 or above.

Recently esbuild 0.9 was released with some breaking changes.
A breaking change broke this plugin: esbuild.startService function
is being removed.

This commit change peer and devDependencies to esbuild 0.9 and
also removing usage of service in the plugin. Instead it use
transform function directly.

All tests passed and example is built just fine.

package.json

@@ -19,7 +19,7 @@
     "@types/jest": "^26.0.20",
     "@types/mock-fs": "^4.13.0",
     "@types/node": "14.14.32",
-    "esbuild": "^0.8.0",
+    "esbuild": "^0.9.0",
     "jest": "^26.6.3",
     "mock-fs": "^4.13.0",
     "prettier": "^2.2.1",
@@ -35,7 +35,7 @@
     "strip-json-comments": "^3.1.1"
   },
   "peerDependencies": {
-    "esbuild": ">=0.7.0"
+    "esbuild": ">=0.9.0"
   },
   "engines": {
     "node": ">=12"

src/index.ts

@@ -1,7 +1,7 @@
 import { existsSync, statSync } from 'fs'
 import { extname, resolve, dirname, join, relative } from 'path'
 import { Plugin, PluginContext } from 'rollup'
-import { startService, Loader, Service, TransformResult } from 'esbuild'
+import { transform, Loader, TransformResult } from 'esbuild'
 import { createFilter, FilterPattern } from '@rollup/pluginutils'
 import { getOptions } from './options'
 
@@ -66,15 +66,6 @@ export default (options: Options = {}): Plugin => {
     options.exclude || EXCLUDE_REGEXP
   )
 
-  let service: Service | undefined
-
-  const stopService = () => {
-    if (service) {
-      service.stop()
-      service = undefined
-    }
-  }
-
   // The order is:
   // buildStart -> resolveId -> transform -> buildEnd -> renderChunk -> generateBundle
 
@@ -89,12 +80,6 @@ export default (options: Options = {}): Plugin => {
   return {
     name: 'esbuild',
 
-    async buildStart() {
-      if (!service) {
-        service = await startService()
-      }
-    },
-
     resolveId(importee, importer) {
       if (importer && importee[0] === '.') {
         const resolved = resolve(
@@ -119,7 +104,7 @@ export default (options: Options = {}): Plugin => {
       const ext = extname(id)
       const loader = loaders[ext]
 
-      if (!loader || !service) {
+      if (!loader) {
         return null
       }
 
@@ -130,7 +115,7 @@ export default (options: Options = {}): Plugin => {
 
       target = options.target || defaultOptions.target || 'es2017'
 
-      const result = await service.transform(code, {
+      const result = await transform(code, {
         loader,
         target,
         jsxFactory: options.jsxFactory || defaultOptions.jsxFactory,
@@ -150,16 +135,9 @@ export default (options: Options = {}): Plugin => {
       )
     },
 
-    buildEnd(error) {
-      // Stop the service early if there's error
-      if (error && !this.meta.watchMode) {
-        stopService()
-      }
-    },
-
     async renderChunk(code) {
-      if (options.minify && service) {
-        const result = await service.transform(code, {
+      if (options.minify) {
+        const result = await transform(code, {
           loader: 'js',
           minify: true,
           target,
@@ -173,12 +151,6 @@ export default (options: Options = {}): Plugin => {
       }
       return null
     },
-
-    generateBundle() {
-      if (!this.meta.watchMode) {
-        stopService()
-      }
-    },
   }
 }
 

yarn.lock

@@ -1275,10 +1275,10 @@ error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
-esbuild@^0.8.0:
-  version "0.8.0"
-  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.8.0.tgz#3173e851303dce0682ebbcbaf6072b991dd6f60e"
-  integrity sha512-xCHJpLRlU0NIANQHNsiMDNC/HlrKoye7iH5YOcoZNurauUZgMhjmm9PCal+Oo9ARYZrWxN15mykbfCX//UEvng==
+esbuild@^0.9.0:
+  version "0.9.0"
+  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.9.0.tgz#b8320df85048ed1637c6b59ee52abba248936d3c"
+  integrity sha512-IqYFO7ZKHf0y4uJpJfGqInmSRn8jMPMbyI1W0Y2PSjSjJcVP538tC8TleJAS4Y8QeqwajqBTwFKayWVzYlMIgg==
 
 escape-string-regexp@^1.0.5:
   version "1.0.5"