我什么时候在我的项目中运行“npm install -g”。
NPM删除/ usr / local / lib / node_modules / {projectName} / node_modules下的所有文件/目录，并再次下载。
有没有一种方法，npm只更新或下载新的依赖项？
********************编辑********************
这是我的package.json
{
"name" : "someName",
"version" : "0.0.1",
"engines" : {
"node" : "0.10.x",
"npm" : "1.4.x"
},
"dependencies" : {
"assetmanager" : "1.0.0",
"async" : "0.9.0",
"body-parser" : "1.2.0",
"bower" : "1.3.3",
"compression" : "1.0.1",
"connect-flash" : "0.1.1",
"connect-redis" : "2.0.0",
"consolidate" : "0.10.0",
"cookie-parser" : "1.1.0",
"csurf" : "1.4.0",
"dependable" : "0.2.5",
"errorhandler" : "1.0.0",
"express" : "4.2.0",
"express-session" : "1.1.0",
"express-validator" : "2.1.1",
"forever" : "0.11.1",
"gridfs-stream" : "0.5.1",
"grunt-cli" : "0.1.13",
"grunt-concurrent" : "0.5.0",
"grunt-contrib-clean" : "0.5.0",
"grunt-contrib-csslint" : "0.2.0",
"grunt-contrib-cssmin" : "0.9.0",
"grunt-contrib-jshint" : "0.10.0",
"grunt-contrib-uglify" : "0.4.0",
"grunt-contrib-watch" : "0.6.1",
"grunt-env" : "0.4.1",
"grunt-nodemon" : "0.2.1",
"load-grunt-tasks" : "0.4.0",
"lodash" : "2.4.1",
"mean-connect-mongo" : "0.4.3",
"mean-logger" : "0.0.1",
"meanio" : "0.4.x",
"method-override" : "1.0.0",
"mongoose-schema-extend" : "0.1.7",
"mongoose" : "3.8.8",
"morgan" : "1.0.0",
"node-redis-warlock" : "0.0.6",
"nodemailer" : "0.7.0",
"nodetime" : "0.8.15",
"passport" : "0.2.0",
"passport-local" : "1.0.0",
"pbkdf2-sha256" : "1.0.1",
"redis-sentinel" : "0.1.3",
"request" : "2.47.0",
"serve-favicon" : "2.0.1",
"should" : "3.3.1",
"swig" : "1.3.2",
"time-grunt" : "0.3.1",
"twilio" : "1.6.0",
"view-helpers" : "0.1.4",
"winston" : "0.7.3",
"ua-parser" : "0.3.4"
}
}
现在我跑“npm -g install”
在另一个标签上我运行：
ls -lrt /usr/local/lib/node_modules/afv/node_modules | wc -l
上面的输出从54开始并且变为0然后返回到54