feat: expose jsx options

README.md

@@ -22,6 +22,8 @@ export default {
       watch: process.argv.includes('--watch'),
       minify: process.env.NODE_ENV === 'production',
       target: 'es2015' // default, or 'es20XX', 'esnext'
+      jsxFactory: 'React.createElement',
+      jsxFragment: 'React.Fragment'
     }),
   ],
 }

jest.config.js

@@ -0,0 +1,9 @@
+module.exports = {
+  testEnvironment: 'node',
+  transform: {
+    '^.+\\.tsx?$': 'ts-jest'
+  },
+  testRegex: '(/__test__/.*|(\\.|/)(test|spec))\\.tsx?$',
+  testPathIgnorePatterns: ['/node_modules/', '/dist/', '/types/'],
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node']
+}

package.json

@@ -1,21 +1,25 @@
 {
   "name": "rollup-plugin-esbuild",
   "version": "0.0.0-semantic-release",
-  "main": "src/index.js",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
   "author": "EGOIST",
   "license": "MIT",
   "scripts": {
-    "test": "jest --env node",
-    "example": "rollup -c example/rollup.config.js"
+    "test": "jest",
+    "example": "rollup -c example/rollup.config.js",
+    "build": "tsc",
+    "prepublishOnly": "npm run build"
   },
   "files": [
-    "src"
+    "dist"
   ],
   "devDependencies": {
     "@types/jest": "^25.2.1",
     "jest": "^26.0.1",
     "prettier": "^2.0.5",
     "rollup": "^2.8.2",
+    "ts-jest": "^25.5.1",
     "typescript": "^3.8.3"
   },
   "dependencies": {

src/index.ts

@@ -0,0 +1,104 @@
+import { existsSync } from 'fs'
+import { extname, resolve, dirname } from 'path'
+import { Plugin, PluginContext } from 'rollup'
+import { startService, Loader, Service, Target, TransformResult } from 'esbuild'
+
+const loaders: Loader[] = ['js', 'jsx', 'ts', 'tsx']
+
+export type Options = {
+  watch?: boolean
+  minify?: boolean
+  target?: Target
+  jsxFactory?: string
+  jsxFragment?: string
+}
+
+export default (options: Options = {}): Plugin => {
+  let service: Service | undefined
+
+  return {
+    name: 'esbuild',
+
+    async buildStart() {
+      service = await startService()
+    },
+
+    resolveId(importee, importer) {
+      if (importer && importee[0] === '.') {
+        const resolved = resolve(
+          importer ? dirname(importer) : process.cwd(),
+          importee
+        )
+
+        const exists = existsSync(resolved)
+
+        if (!exists && existsSync(`${resolved}.jsx`)) {
+          return `${resolved}.jsx`
+        }
+
+        if (!exists && existsSync(`${resolved}.ts`)) {
+          return `${resolved}.ts`
+        }
+
+        if (!exists && existsSync(`${resolved}.tsx`)) {
+          return `${resolved}.tsx`
+        }
+      }
+    },
+
+    async transform(code, id) {
+      const loader = extname(id).slice(1) as Loader
+
+      if (!loaders.includes(loader) || !service) {
+        return null
+      }
+
+      const result = await service.transform(code, {
+        loader,
+        target: options.target || 'es2015',
+        jsxFactory: options.jsxFactory,
+        jsxFragment: options.jsxFragment,
+      })
+
+      printWarnings(result, this)
+
+      return result.js && {
+        code: result.js,
+        map: result.jsSourceMap,
+      }
+    },
+
+    async renderChunk(code) {
+      if (options.minify && service) {
+        const result = await service.transform(code, {
+          loader: 'js',
+          target: 'esnext',
+          minify: true,
+        })
+        printWarnings(result, this)
+        if (result.js) {
+					return {
+						code: result.js,
+						map: result.jsSourceMap,
+					}
+				}
+      }
+      return null
+    },
+
+    generateBundle() {
+      if (!options.watch && service) {
+        service.stop()
+        service = undefined
+      }
+    },
+  }
+}
+
+function printWarnings(result: TransformResult, plugin: PluginContext) {
+  if (result.warnings) {
+    for (const warning of result.warnings) {
+      plugin.warn(warning.text)
+    }
+  }
+}

test/index.test.js → test/index.test.ts

@@ -1,5 +1,5 @@
-const { rollup } = require('rollup')
-const esbuild = require('../src')
+import { rollup } from 'rollup'
+import esbuild from '../src'
 
 test('simple', async () => {
   const bundle = await rollup({

tsconfig.json

@@ -0,0 +1,67 @@
+{
+  "compilerOptions": {
+    /* Basic Options */
+    // "incremental": true,                   /* Enable incremental compilation */
+    "target": "es2018",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
+    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
+    // "lib": [],                             /* Specify library files to be included in the compilation. */
+    // "allowJs": true,                       /* Allow javascript files to be compiled. */
+    // "checkJs": true,                       /* Report errors in .js files. */
+    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
+    "declaration": true,                   /* Generates corresponding '.d.ts' file. */
+    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
+    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
+    // "outFile": "./",                       /* Concatenate and emit output to single file. */
+    "outDir": "./dist",                        /* Redirect output structure to the directory. */
+    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    // "composite": true,                     /* Enable project compilation */
+    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
+    // "removeComments": true,                /* Do not emit comments to output. */
+    // "noEmit": true,                        /* Do not emit outputs. */
+    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
+    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+
+    /* Strict Type-Checking Options */
+    "strict": true,                           /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,              /* Enable strict null checks. */
+    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+    // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
+    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    // "noUnusedLocals": true,                /* Report errors on unused locals. */
+    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
+    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
+    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
+
+    /* Module Resolution Options */
+    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
+    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
+    // "typeRoots": [],                       /* List of folders to include type definitions from. */
+    // "types": [],                           /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
+    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
+
+    /* Source Map Options */
+    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
+    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+
+    /* Advanced Options */
+    "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
+  },
+  "include": ["src/**/*"]
+}