gulp入门（18）- 从命令行传递参数

var gulp = require('gulp');var gulpif = require('gulp-if');var uglify = require('gulp-uglify');var minimist = require('minimist');var knownOptions = {  string: 'env',  default: { env: process.env.NODE_ENV || 'production' }};var options = minimist(process.argv.slice(2), knownOptions);gulp.task('scripts', function() {  return gulp.src('**/*.js')    .pipe(gulpif(options.env === 'production', uglify())) // 仅在生产环境时候进行压缩    .pipe(gulp.dest('dist'));});

然后，通过如下命令运行 gulp：

$ gulp scripts --env development