feat: replace terser with swc

- closes #136

lib/filter.js

@@ -2,7 +2,7 @@
 
 const { minify: htmlMinify } = require('html-minifier')
 const CleanCSS = require('clean-css')
-const { minify: terserMinify } = require('terser')
+const { minify: jsMinify } = require('@swc/core')
 const { optimize: svgOptimize } = require('svgo')
 const zlib = require('zlib')
 const { promisify } = require('util')
@@ -109,9 +109,10 @@ async function minifyJs (str, data) {
 
   if (isMatch(path, exclude, globOptions)) return str
 
-  // Terser doesn't like unsupported options
+  // Terser/SWC doesn't like unsupported options
   const jsOptions = Object.assign({}, options)
   delete jsOptions.enable
+  delete jsOptions.output
   delete jsOptions.priority
   delete jsOptions.verbose
   // Old option, retained to avoid crash when upgrading to v4
@@ -120,7 +121,7 @@ async function minifyJs (str, data) {
   delete jsOptions.globOptions
 
   try {
-    const { code } = await terserMinify(str, jsOptions)
+    const { code } = await jsMinify(str, jsOptions)
     if (verbose) logFn.call(this, str, code, path, 'js')
     return code
   } catch (err) {

package.json

@@ -28,7 +28,7 @@
     "micromatch": "^4.0.2",
     "minify-xml": "^3.2.0",
     "svgo": "^3.0.0",
-    "terser": "^5.3.0"
+    "@swc/core": "^1.3.14"
   },
   "devDependencies": {
     "hexo": "^6.1.0",
@@ -53,6 +53,7 @@
     "clearMocks": true,
     "collectCoverage": true,
     "coverageDirectory": "./coverage/",
+    "testTimeout": 10000,
     "testEnvironment": "node"
   }
 }

test/js.test.js

@@ -2,7 +2,7 @@
 'use strict'
 
 const Hexo = require('hexo')
-const { minify: terserMinify } = require('terser')
+const { minify: jsMinify } = require('@swc/core')
 
 describe('js', () => {
   const hexo = new Hexo(__dirname)
@@ -12,7 +12,7 @@ describe('js', () => {
   let expected = ''
 
   beforeAll(async () => {
-    const { code } = await terserMinify(input, { mangle: true })
+    const { code } = await jsMinify(input, { mangle: true })
     expected = code
   })
 
@@ -55,13 +55,13 @@ describe('js', () => {
   test('option', async () => {
     const customOpt = {
       mangle: {
-        properties: true
+        properties: {}
       }
     }
     hexo.config.minify.js = customOpt
 
     const result = await j(input, { path })
-    const { code: expected } = await terserMinify(input, customOpt)
+    const { code: expected } = await jsMinify(input, customOpt)
 
     expect(result).toBe(expected)
   })
@@ -84,7 +84,7 @@ describe('js', () => {
 
     let expected
     try {
-      await terserMinify(input, customOpt)
+      await jsMinify(input, customOpt)
     } catch (err) {
       expected = err
     }
@@ -118,6 +118,14 @@ describe('js', () => {
   test('invalid string', async () => {
     const invalid = 'console.log("\\");'
 
-    await expect(j(invalid, { path })).rejects.toThrow(`Path: ${path}\nSyntaxError`)
+    let expected
+    try {
+      await jsMinify(invalid)
+    } catch (err) {
+      expected = err
+    }
+
+    expect(expected).toBeDefined()
+    await expect(j(invalid, { path })).rejects.toThrow(`Path: ${path}\n${expected}`)
   })
 })