forked from M3-Academy/challenge-algorithms-v2.0
76 lines
2.3 KiB
Markdown
76 lines
2.3 KiB
Markdown
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# exit [](http://travis-ci.org/cowboy/node-exit)
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A replacement for process.exit that ensures stdio are fully drained before exiting.
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To make a long story short, if `process.exit` is called on Windows, script output is often truncated when pipe-redirecting `stdout` or `stderr`. This module attempts to work around this issue by waiting until those streams have been completely drained before actually calling `process.exit`.
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See [Node.js issue #3584](https://github.com/joyent/node/issues/3584) for further reference.
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Tested in OS X 10.8, Windows 7 on Node.js 0.8.25 and 0.10.18.
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Based on some code by [@vladikoff](https://github.com/vladikoff).
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## Getting Started
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Install the module with: `npm install exit`
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```javascript
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var exit = require('exit');
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// These lines should appear in the output, EVEN ON WINDOWS.
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console.log("omg");
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console.error("yay");
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// process.exit(5);
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exit(5);
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// These lines shouldn't appear in the output.
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console.log("wtf");
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console.error("bro");
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```
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## Don't believe me? Try it for yourself.
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In Windows, clone the repo and cd to the `test\fixtures` directory. The only difference between [log.js](test/fixtures/log.js) and [log-broken.js](test/fixtures/log-broken.js) is that the former uses `exit` while the latter calls `process.exit` directly.
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This test was done using cmd.exe, but you can see the same results using `| grep "std"` in either PowerShell or git-bash.
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```
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C:\node-exit\test\fixtures>node log.js 0 10 stdout stderr 2>&1 | find "std"
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stdout 0
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stderr 0
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stdout 1
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stderr 1
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stdout 2
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stderr 2
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stdout 3
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stderr 3
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stdout 4
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stderr 4
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stdout 5
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stderr 5
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stdout 6
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stderr 6
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stdout 7
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stderr 7
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stdout 8
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stderr 8
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stdout 9
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stderr 9
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C:\node-exit\test\fixtures>node log-broken.js 0 10 stdout stderr 2>&1 | find "std"
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C:\node-exit\test\fixtures>
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```
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## Contributing
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In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using [Grunt](http://gruntjs.com/).
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## Release History
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2013-11-26 - v0.1.2 - Fixed a bug with hanging processes.
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2013-09-26 - v0.1.1 - Fixed some bugs. It seems to actually work now!
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2013-09-20 - v0.1.0 - Initial release.
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## License
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Copyright (c) 2013 "Cowboy" Ben Alman
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Licensed under the MIT license.
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