【发布时间】：2018-12-12 04:19:49
【问题描述】：
您预计会发生什么？
Gulp 将 vue.js 组件转换为可用且功能强大的 JS。
究竟发生了什么？
当我运行gulp contacts（显示在下面的代码和配置部分下）时，转译运行良好。终端中没有输出任何错误，一切似乎都成功完成。问题是，当页面重新加载时，我在控制台中出现错误，指出Uncaught SyntaxError: Unexpected end of input。查看源代码时，devtools 显示了以下内容：
module.exports = function parseHeaders(headers) {
var parsed = {};
var key;
var val;
var i;
if (!headers) { return parsed; }
utils.forEach(headers.split('\n'), function parser(line) {
i = line.indexOf(':');
key = utils.trim(line.substr(0, i)).toLowerCase();
val = utils.trim(line.substr(i + 1));
if (key) {
parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
}
});
return parsed;
};
},{"./../utils":26}]
这个文件的尾部通常有一个源映射，但在这种情况下没有，所以有一个悬空括号仍然打开或在转译文件中。鉴于转译的性质，试图找出语法错误是不可行的。
环境：
操作系统：MacOS High Sierra v.10.13.5
$ node -v
v9.5.0
$ npm -v
5.6.0
╭─────────────────────────────────────╮
│ │
│ Update available 5.6.0 → 6.1.0 │
│ Run npm i npm to update │
│ │
╰─────────────────────────────────────╯
$ node -p process.version
v9.5.0
$ node -p process.versions
{ http_parser: '2.7.0',
node: '9.5.0',
v8: '6.2.414.46-node.18',
uv: '1.19.1',
zlib: '1.2.11',
ares: '1.13.0',
modules: '59',
nghttp2: '1.29.0',
napi: '2',
openssl: '1.0.2n',
icu: '60.1',
unicode: '10.0',
cldr: '32.0',
tz: '2017c' }
$ node -p process.platform
darwin
$ node -p process.arch
x64
$ node -p "require('node-sass').info"
node-sass 4.9.1 (Wrapper) [JavaScript]
libsass 3.5.4 (Sass Compiler) [C/C++]
$ npm ls --depth=0
app@ /Users/user/projects/app
├── ajv@5.5.2
├── avoriaz@3.6.0
├── axios@0.16.2
├── babel-core@6.26.3
├── babel-plugin-transform-async-to-generator@6.24.1
├── babel-plugin-transform-async-to-module-method@6.24.1
├── babel-plugin-transform-runtime@6.23.0
├── babel-preset-es2015@6.24.1
├── babelify@7.3.0
├── browserify@14.5.0
├── browserify-hmr@0.3.6
├── c3@0.4.23
├── chai@4.1.2
├── cross-env@1.0.8
├── d3@4.13.0
├── envify@3.4.1
├── eonasdan-bootstrap-datetimepicker@4.17.47
├── eslint@4.19.1
├── eslint-config-airbnb@16.1.0
├── eslint-config-airbnb-base@12.1.0
├── eslint-plugin-html@1.7.0
├── eslint-plugin-import@2.13.0
├── eslint-plugin-jsx-a11y@6.1.0
├── eslint-plugin-react@7.10.0
├── glob@7.1.2
├── gulp@3.9.1
├── gulp-google-fonts-base64-css@1.0.4
├── gulp-rename@1.3.0
├── gulp-rev@8.1.1
├── gulp-sass@3.2.1
├── gulp-sourcemaps@2.6.4
├── http-server@0.9.0
├── karma@1.7.1
├── karma-browserify@5.3.0
├── karma-chai@0.1.0
├── karma-chrome-launcher@2.2.0
├── karma-mocha@1.3.0
├── mocha@3.5.3
├── moment@2.22.2
├── npm-run-all@2.3.0
├── qs@6.5.2
├── sinon@2.4.1
├── uglify-js@2.8.29
├── underscore@1.9.1
├── vinyl-source-stream@1.1.2
├── vinyl-transform@1.0.0
├── vue@2.5.16
├── vue-affix@0.2.4
├── vue-bootstrap-datetimepicker@4.1.4
├── vue-pagination-2@0.3.2
├── vue-spinner@1.0.3
├── vue-strap@2.0.2 (github:wffranco/vue-strap#7becab2b3f6e6b7e281afd777c455e3d83fde927)
├── vue-template-compiler@2.5.16
├── vueify@9.4.1
├── vuejs-datepicker@0.9.29
├── watchify@3.11.0
└── webdriver-manager@12.1.0
gulp --v
[15:17:45] CLI version 2.0.1
[15:17:45] Local version 3.9.1
代码和配置：
package.json
{
"name": "project",
"description": "Some project",
"author": "Someone <noone@email.com>",
"private": true,
"scripts": {
"watchify": "watchify -vd -p browserify-hmr -e js/vue-projects/src/main.js -o js/vue-projects/dist/build.js",
"serve": "http-server -o -s -c 1 -a localhost",
"dev": "npm-run-all --parallel watchify serve",
"buildtest": "cross-env NODE_ENV=production browserify -g envify js/vue-mini-apps/test/main.js | uglifyjs -c warnings=false -m > js/vue-mini-apps/dist/test.js",
"builddev": "cross-env browserify -g envify js/vue-mini-apps/materials/app.js | uglifyjs -c warnings=false -m > js/vue-mini-apps/dist/materials.js",
"build": "cross-env NODE_ENV=production browserify -g envify js/vue-mini-apps/materials/app.js | uglifyjs -c warnings=false -m > js/vue-mini-apps/dist/materials.js"
},
"dependencies": {
"ajv": "^5.5.1",
"axios": "^0.16.2",
"eonasdan-bootstrap-datetimepicker": "^4.17.47",
"glob": "^7.1.2",
"gulp-rename": "^1.2.2",
"moment": "^2.19.4",
"underscore": "^1.8.3",
"v-calendar": "^0.5.5",
"vue": "^2.5.9",
"vue-bootstrap-datetimepicker": "^4.1.3",
"vue-pagination-2": "^0.3.2",
"vue-spinner": "^1.0.3",
"vue-strap": "github:wffranco/vue-strap",
"vue-template-compiler": "^2.5.9",
"vueify": "^9.4.1"
},
"devDependencies": {
"avoriaz": "^3.6.0",
"babel-core": "^6.26.0",
"babel-plugin-transform-async-to-generator": "^6.24.1",
"babel-plugin-transform-async-to-module-method": "^6.24.1",
"babel-plugin-transform-runtime": "^6.23.0",
"babel-preset-es2015": "^6.24.1",
"babelify": "^7.2.0",
"browserify": "^14.5.0",
"browserify-hmr": "^0.3.6",
"chai": "^4.1.2",
"cross-env": "^1.0.6",
"envify": "^3.4.1",
"eslint": "^4.13.0",
"eslint-config-airbnb": "^16.1.0",
"eslint-config-airbnb-base": "^12.1.0",
"eslint-plugin-html": "^1.5.3",
"eslint-plugin-import": "^2.8.0",
"eslint-plugin-jsx-a11y": "^6.0.2",
"eslint-plugin-react": "^7.5.1",
"gulp": "^3.9.1",
"gulp-google-fonts-base64-css": "^1.0.4",
"gulp-rev": "^8.1.1",
"gulp-sass": "^3.2.0",
"gulp-sourcemaps": "^2.6.4",
"http-server": "^0.9.0",
"karma": "^1.7.1",
"karma-browserify": "^5.2.0",
"karma-chai": "^0.1.0",
"karma-chrome-launcher": "^2.0.0",
"karma-mocha": "^1.2.0",
"mocha": "^3.5.3",
"npm-run-all": "^2.1.2",
"sinon": "^2.3.8",
"uglify-js": "^2.8.29",
"vinyl-source-stream": "^1.1.2",
"vinyl-transform": "^1.0.0",
"watchify": "^3.11.0",
"webdriver-manager": "^12.0.6"
},
"browserify": {
"transform": [
"vueify",
"babelify"
]
},
"browser": {
"vue": "vue/dist/vue.common.js"
}
}
gulpfile.js：
var gulp = require('gulp');
var browserify = require('browserify');
var vueify = require('vueify');
var transform = require('vinyl-transform');
var source = require('vinyl-source-stream');
var sass = require('gulp-sass');
var sourcemaps = require('gulp-sourcemaps');
var fs = require("fs")
var babelify = require('babelify');
var glob = require('glob');
var rename = require('gulp-rename');
var rev = require('gulp-rev');
gulp.task('contacts', function() {
//determine all files to be compiled
glob('./js/vue-mini-apps/contacts/**/*.app.js', function(err, files) {
if (err) {
gutil.log(gutil.colors.red('Glob error:'),err);
}
//browerify each file
var tasks = files.map(function(entry) {
return browserify(entry, {debug:true})
.transform(babelify, {presets: ['es2015'], plugins: ["transform-runtime", "transform-async-to-generator"]})
.bundle()
.pipe(source(entry))
//determine file name from file path
.pipe(rename('contacts-bundle.js'))
.pipe(gulp.dest('./js/vue-mini-apps/dist'));
});
});
});
尝试的补救措施：
我试过了：
- 运行：
rm -rf node_modules
npm cache clean
npm install
npm update将 node 和 npm 升级到最新版本（这是一个巨大的错误——引入了更多问题）
在 gulp 任务中设置
debug: false跑
npm rebuild node-sass复制我同事的
node_modules。这作为一个永久的解决方案是不可行的，因为我不能让他安装新插件并在我每次需要新功能时向我空投他的node_modules的存档。从生产系统和从事同一项目的两个独立同事复制已知的工作 package.json 和 package-lock.json。使用已知的工作包*.json 文件，我运行了
rm -rf node_modules、npm cache clear --force、npm install，并收到了相同的结果。根据 Gulp 的文档查看了常见问题及其修复页面
我已经用尽了我的知识范围，此时 Google 搜索返回的结果很少。失败的感觉变得非常真实，所以任何帮助将不胜感激！
关于 SO 和来源的类似问题：
node sass release 3.5.3 is breaking build
Gulp-generated source maps don't work in Chrome
Gulp Sass with errLogToConsole: true still stopping my other watch tasks
Getting: SyntaxError: missing ) after argument list but can't find out whats wrong with hulpfile.js
https://github.com/gulpjs/gulp/issues/2065
https://github.com/dlmanning/gulp-sass/wiki/Common-Issues-and-Their-Fixes
更新
npm 支持回复了我，在进行了一些故障排除后，我们已经消除了节点和 npm 的问题。根据 npm 支持的建议，这很可能是由于 gulp 插件或 gulp 本身造成的。
更新 #2
追踪到与 Axios 相关的问题。 gulp 没有正确导入该模块的内容，因此 JS 没有完全转译。这个问题现在采取了不同的路线。一旦确定了解决方案（a）是什么原因造成的，以及（b）我们如何解决它，我会回答这个问题。
【问题讨论】：
标签： javascript gulp axios browserify