terser

packages/next/build/webpack/plugins/terser-webpack-plugin/src/minify.ts

@@ -1,7 +1,7 @@
 /* eslint-disable
   arrow-body-style
 */
-import { minify as terser, MinifyOptions } from 'terser'
+import { minify as terser, MinifyOptions } from 'next/dist/compiled/terser'
 
 const IS_MODERN_OUTPUT = /\.module\.js$/
 

packages/next/package.json

@@ -87,7 +87,6 @@
     "sass-loader": "8.0.2",
     "style-loader": "1.0.0",
     "styled-jsx": "3.2.5",
-    "terser": "4.4.2",
     "thread-loader": "2.1.3",
     "unfetch": "4.1.0",
     "url": "0.11.0",
@@ -196,6 +195,7 @@
     "string-hash": "1.1.3",
     "strip-ansi": "5.2.0",
     "taskr": "1.1.0",
+    "terser": "4.4.2",
     "text-table": "0.2.0",
     "typescript": "3.7.3",
     "unistore": "3.4.1"

packages/next/taskfile.js

@@ -531,6 +531,13 @@ export async function ncc_strip_ansi(task, opts) {
     .target('dist/compiled/strip-ansi')
 }
 // eslint-disable-next-line camelcase
+export async function ncc_terser(task, opts) {
+  await task
+    .source(opts.src || relative(__dirname, require.resolve('terser')))
+    .ncc({ packageName: 'terser' })
+    .target('dist/compiled/terser')
+}
+// eslint-disable-next-line camelcase
 export async function ncc_text_table(task, opts) {
   await task
     .source(opts.src || relative(__dirname, require.resolve('text-table')))
@@ -603,6 +610,7 @@ export async function precompile(task) {
     'ncc_source_map',
     'ncc_string_hash',
     'ncc_strip_ansi',
+    'ncc_terser',
     'ncc_text_table',
     'ncc_unistore',
   ])

packages/next/types/misc.d.ts

@@ -176,6 +176,10 @@ declare module 'next/dist/compiled/strip-ansi' {
   import m from 'strip-ansi'
   export = m
 }
+declare module 'next/dist/compiled/terser' {
+  import m from 'terser'
+  export = m
+}
 declare module 'next/dist/compiled/text-table' {
   function textTable(
     rows: Array<Array<{}>>,