介绍
supervisor可以帮助我们自动重启nodejs应用，在本地开发nodejs应用时，可以使用这个工具实现自动重启应用。
github: github.com/petruisfan/…
使用
Node supervisor会在应用崩溃时，自动重启应用。也可以用来监听文件变动后，自动重启。
Usage:
supervisor [options] <program>
supervisor [options] -- <program> [args ...]
Required:
<program>
The program to run.
Options:
-w|--watch <watchItems>
A comma-delimited list of folders or js files to watch for changes.
When a change to a js file occurs, reload the program
Default is '.'
-i|--ignore <ignoreItems>
A comma-delimited list of folders to ignore for changes.
No default
--ignore-symlinks
Ignore symlinks :)
-s|--timestamp
Log timestamp after each run.
Make it easy to tell when the task last ran.
-p|--poll-interval <milliseconds>
How often to poll watched files for changes.
Defaults to Node default.
-e|--extensions <extensions>
A comma-delimited list of file extensions to watch for changes.
Default is 'node,js' (or when CoffeeScript, 'node,js,coffee,litcoffee').
-x|--exec <executable>
The executable that runs the specified program.
Default is 'node'
-pid|--save-pid <path>
Save supervisor's process id to a file at the given path.
--debug[=port]
Start node with --debug flag.
--debug-brk[=port]
Start node with --debug-brk flag.
--harmony
Start node with --harmony flag.
--inspect
Start node with --inspect flag.
-n|--no-restart-on error|exit|success
Don't automatically restart the supervised program if it ends.
Supervisor will wait for a change in the source files.
If "error", an exit code of 0 will still restart.
If "exit", no restart regardless of exit code.
If "success", no restart only if exit code is 0.
-t|--non-interactive
Dissable interactive capacity
With this option, supervisor won't listen to stdin
--force-watch
Use fs.watch instead of fs.watchFile.
This may be useful if you see a high cpu load on a windows machine.
-k|--instant-kill
Instantly kills the server process, instead of gracefully shutting down the server.
This can be useful when the node app has events attached to SIGTERM or SIGINT so as to do a graceful shutdown before the process exits.
-RV|--restart-verbose
Logs the file(s) that caused supervisor to restart
-h|--help|-?
Display these usage instructions.
-q|--quiet
Suppress DEBUG messages
Options available after start:
rs - restart process. Useful when you want to restart your program even
if no file has changed.
Examples:
supervisor myapp.js
supervisor myapp.coffee
supervisor -w scripts -e myext -x myrunner myapp
supervisor -w lib,server.js,config.js server.js
supervisor -- server.js -h host -p port
在package.json中，使用
script: {
"dev": "supervisor app.js"
}
那么在package.json中如何添加启动参数?
script: {
"dev": "supervisor -- app.js --arg1 hhh"
}
