live-server: 与 serve 类似，但支持 hot reload
一个支持 hot reload 的server
安装
# 注意，官方版本会 env: node\r:xxx 这种错误
# https://github.com/tapio/live-server/issues/394
yarn global add git+https://github.com/tapio/live-server.git#ad22544快捷
已经收藏到 ushell-module-nodejs 中了
alias lv="live-server";其它
Command line parameters:
--port=NUMBER - select port to use, default: PORT env var or 8080
--host=ADDRESS - select host address to bind to, default: IP env var or 0.0.0.0 ("any address")
--no-browser - suppress automatic web browser launching
--browser=BROWSER - specify browser to use instead of system default
--quiet | -q - suppress logging
--verbose | -V - more logging (logs all requests, shows all listening IPv4 interfaces, etc.)
--open=PATH - launch browser to PATH instead of server root
--watch=PATH - comma-separated string of paths to exclusively watch for changes (default: watch everything)
--ignore=PATH - comma-separated string of paths to ignore (anymatch-compatible definition)
--ignorePattern=RGXP - Regular expression of files to ignore (ie .*\.jade) (DEPRECATED in favor of --ignore)
--no-css-inject - reload page on CSS change, rather than injecting changed CSS
--middleware=PATH - path to .js file exporting a middleware function to add; can be a name without path nor extension to reference bundled middlewares in middleware folder
--entry-file=PATH - serve this file (server root relative) in place of missing files (useful for single page apps)
--mount=ROUTE:PATH - serve the paths contents under the defined route (multiple definitions possible)
--spa - translate requests from /abc to /#/abc (handy for Single Page Apps)
--wait=MILLISECONDS - (default 100ms) wait for all changes, before reloading
--htpasswd=PATH - Enables http-auth expecting htpasswd file located at PATH
--cors - Enables CORS for any origin (reflects request origin, requests with credentials are supported)
--https=PATH - PATH to a HTTPS configuration module
--https-module=MODULE_NAME - Custom HTTPS module (e.g. spdy)
--proxy=ROUTE:URL - proxy all requests for ROUTE to URL
--help | -h - display terse usage hint and exit
--version | -v - display version and exit