gulp-rename 后 gulp-uglify 流错误

Question

Gulp noob 在这里，我看到 gulp-uglify 的奇怪行为。

这是我的任务：

var gulp = require ("gulp");
var util = require ("gulp-util");
var clean = require ("gulp-clean");
var cleanCSS = require ("gulp-clean-css");
var debug = require ("gulp-debug");
var filesize = require ("gulp-filesize");
var rename = require ("gulp-rename");
var sass = require ("gulp-ruby-sass");
var browserify = require (BROWSERIFY);
var source = require ("vinyl-source-stream");
var buffer = require ("vinyl-buffer");
var sourceMaps = require("gulp-sourcemaps");
var babelify = require ("babelify");
var uglify = require ("gulp-uglify");
var concatFileNames = require ("gulp-concat-filenames");
var header = require ("gulp-header");

function browserifyTask () {

    return browserify ("./app/main.js")
        .transform(babelify)
        .bundle()
        .pipe (source("main.js"))
        .pipe (buffer())
        .pipe (sourceMaps.init({loadMaps: true}))

        .pipe (sourceMaps.write("./")) // Ensure the source map gets written
        .pipe (gulp.dest("./public/js"))

        // Now do production build stuff

        .pipe (rename("main.min.js"))
        .pipe (sourceMaps.init({loadMaps: true}))
        .pipe (uglify().on ("error", util.log))
        .pipe (sourceMaps.write("./")) // Ensure the source map gets written
        .pipe (gulp.dest("./public/js"))
}

这个想法是产生正常（非缩小）的 JS 和缩小版本。

但是，Uglify 会抛出错误：

[16:20:26] Using gulpfile C:\play\untitled\gulpfile.js
[16:20:26] Starting 'browserify'...
[16:20:28] { [Error: C:\play\untitled\public\js\main.min.js: Unexpected      token: punc (:)]
  message: 'C:\\play\\untitled\\public\\js\\main.min.js: Unexpected token: punc (:)',
  fileName: 'C:\\play\\untitled\\public\\js\\main.min.js',
  lineNumber: 1,
  stack: 'Error\n    at new JS_Parse_Error (eval at <anonymous>  (C:\\play\\untitled\\node_modules\\uglify-js\\tools\\node.js:22:1),  <anonymous>:1526:18)\n    at js_error (eval at <anonymous>  (C:\\play\\untitled\\node_modules\\uglify-js\\tools\\node.js:22:1),  <anonymous>:1534:11)\n    at croak (eval at <anonymo
us> (C:\\play\\untitled\\node_modules\\uglify-js\\tools\\node.js:22:1),  <anonymous>:2026:9)\n    at token_error (eval at <anonymous>  (C:\\play\\untitled\\node_modules\\uglify-js\\tools\\node.js:22:1),  <anonymous>:2034:9)\n    at unexpected (eval at <anonymous>  (C:\\play\\untitled\\node_modules\\uglify-js\\tool
s\\node.js:22:1), <anonymous>:2040:9)\n    at semicolon (eval at <anonymous> (C:\\play\\untitled\\node_modules\\uglify-js\\tools\\node.js:22:1),     <anonymous>:2060:56)\n    at simple_statement (eval at <anonymous>  (C:\\play\\untitled\\node_modules\\uglify-js\\tools\\node.js:22:1),  <anonymous>:2240:73)\n    at ev
al (eval at <anonymous> (C:\\play\\untitled\\node_modules\\uglify- js\\tools\\node.js:22:1), <anonymous>:2093:47)\n    at eval (eval at <anonymous>  (C:\\play\\untitled\\node_modules\\uglify-js\\tools\\node.js:22:1),  <anonymous>:2073:24)\n    at block_ (eval at <anonymous>  (C:\\play\\untitled\\node_modules\\ugli
fy-js\\tools\\node.js:22:1), <anonymous>:2353:20)',
  showStack: false,
  showProperties: true,
  plugin: 'gulp-uglify' }

它似乎不喜欢它正在被管道传输的 JS，但如果在第一次 gulp.dest() 调用之前调用它，Uglify 不会抛出错误（而且我确实得到了缩小的代码）。

This post 表示源映射可能是一个问题，并使用 gulp-ignore 排除它们。试过了，还是不行；同样的错误。

我在这里遗漏了什么明显的东西吗？

谢谢， 杰夫

Answer 1

所以是源地图导致 Uglify 犹豫不决。将 Browserify 与其他插件结合起来似乎存在一个更普遍的问题，该问题与 Browserify 想要缓冲区中的内容和其他插件想要流中的内容有关。

为此，我将我的任务功能重新定义为：

function browserifyTask () {

    function doBrowserify (isProduction) {
        browserify ("./app/main.js")
            .transform(babelify)
            .bundle()
            .pipe (source("main.js"))
            .pipe (isProduction ? rename("main.min.js") : util.noop())
            .pipe (buffer())
            .pipe (sourceMaps.init({loadMaps: true}))
            .pipe (isProduction ? uglify().on ("error", util.log) : util.noop())
            .pipe (sourceMaps.write("./")) 
            .pipe (gulp.dest("./public/js"))
    }

    doBrowserify(false);
    doBrowserify(true);
}

没有我想要的那么优雅，但它完成了工作，我需要继续这个项目（而不是在构建过程中陷入困境）。