nrm的使用

nrm是专门用来管理和快速切换私人配置的registry

全局安装nrm

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npm i nrm -g

如果是unix系统，比如mac或者其他linux，需要添加sudo，然后还要输入密码

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sudo npm i nrm -g

nrm有一些默认配置，用nrm ls命令查看默认配置

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nrm ls

带*号即为当前使用的配置

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  npm ---- https://registry.npmjs.org/
* cnpm --- http://r.cnpmjs.org/
  taobao - https://registry.npm.taobao.org/
  nj ----- https://registry.nodejitsu.com/
  rednpm - http://registry.mirror.cqupt.edu.cn/
  npmMirror  https://skimdb.npmjs.com/registry/
  edunpm - http://registry.enpmjs.org/

也可以直接用current命令查看当前使用的是哪个源

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nrm current

使用nrm切换源

切到源http://registry.mirror.cqupt.edu.cn 命令：nrm use 源的别名，即

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nrm use rednpm

查看*变化了位置

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  npm ---- https://registry.npmjs.org/
  cnpm --- http://r.cnpmjs.org/
  taobao - https://registry.npm.taobao.org/
  nj ----- https://registry.nodejitsu.com/
* rednpm - http://registry.mirror.cqupt.edu.cn/
  npmMirror  https://skimdb.npmjs.com/registry/
  edunpm - http://registry.enpmjs.org/

用nrm add 命令添加公司私有npm源

如http://test.jd.com (肯定不能暴露公司的私有源，这里代替的)，起个别名叫jd

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nrm add jd http://test.jd.com

执行成功提示

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add registry jd success

接着查看nrm配置，发现最底部jd添加成功

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  npm ---- https://registry.npmjs.org/
  cnpm --- http://r.cnpmjs.org/
  taobao - https://registry.npm.taobao.org/
  nj ----- https://registry.nodejitsu.com/
* rednpm - http://registry.mirror.cqupt.edu.cn/
  npmMirror  https://skimdb.npmjs.com/registry/
  edunpm - http://registry.enpmjs.org/
  jd ----- https://test.jd.com/

需要用use去指向

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nrm use jd

看看ls

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  npm ---- https://registry.npmjs.org/
  cnpm --- http://r.cnpmjs.org/
  taobao - https://registry.npm.taobao.org/
  nj ----- https://registry.nodejitsu.com/
  rednpm - http://registry.mirror.cqupt.edu.cn/
  npmMirror  https://skimdb.npmjs.com/registry/
  edunpm - http://registry.enpmjs.org/
* jd - http://registry.m.jd.com/

可以用test测试速度，我们来测试cnpm的速度

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nrm test cnpm
nrm test npm

输出：

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cnpm --- 1095ms
npm ---- 1241ms

做做对比，npm还是慢

删除源用del

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nrm del jd

由于你选中的是这个源，删除之后会自动替换

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⸨░░░░░░░░░░░░░░░░░░⸩ ⠙ :
    delete registry jd success

                        

   Registry has been set to: https://registry.npmjs.org/

再看看ls

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* npm ---- https://registry.npmjs.org/
  cnpm --- http://r.cnpmjs.org/
  taobao - https://registry.npm.taobao.org/
  nj ----- https://registry.nodejitsu.com/
  rednpm - http://registry.mirror.cqupt.edu.cn/
  npmMirror  https://skimdb.npmjs.com/registry/
  edunpm - http://registry.enpmjs.org/

已经到最上面的源取了