npm安装提示‘current user ("nobody") does not have permission to access the dev dir XXX’

在mac系统中，全局安装npm模块时，出现类似下面的报错

gyp WARN EACCES current user ("nobody") does not have permission to access the dev dir "/root/.cache/node-gyp/14.18.0"
gyp WARN EACCES attempting to reinstall using temporary dev dir "/usr/local/lib/node_modules/@tencent/xdc-cli/node_modules/@tencent/svrkit-core/.node-gyp"
gyp WARN install got an error, rolling back install
gyp WARN install got an error, rolling back install
gyp ERR! configure error 
gyp ERR! stack Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/@tencent/xdc-cli/node_modules/@tencent/svrkit-core/.node-gyp'
gyp ERR! System Linux 5.4.241-1-tlinux4-0017.1
gyp ERR! command "/usr/local/bin/node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /usr/local/lib/node_modules/@tencent/xdc-cli/node_modules/@tencent/svrkit-core
gyp ERR! node -v v14.18.0
gyp ERR! node-gyp -v v5.1.0

尝试切换命令行身份 sudo -s 或者在安装命令行前面添加sudo依然无效。

出现这个问题的根本原因是因为当前安装的npm包有其他的读写系统文件的操作，但是这些操作并不是以root身份执行的，所以就会出现权限不够的问题。

针对这个问题，npm官方已经给出了解决方案，使用下面的命令把npm user的权限设为root即可：

npm -g config set user root