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32 lines
1.5 KiB
Markdown
32 lines
1.5 KiB
Markdown
# set-blocking
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[](https://travis-ci.org/yargs/set-blocking)
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[](https://www.npmjs.com/package/set-blocking)
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[](https://coveralls.io/r/yargs/set-blocking?branch=master)
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[](https://github.com/conventional-changelog/standard-version)
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set blocking `stdio` and `stderr` ensuring that terminal output does not truncate.
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```js
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const setBlocking = require('set-blocking')
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setBlocking(true)
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console.log(someLargeStringToOutput)
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```
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## Historical Context/Word of Warning
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This was created as a shim to address the bug discussed in [node #6456](https://github.com/nodejs/node/issues/6456). This bug crops up on
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newer versions of Node.js (`0.12+`), truncating terminal output.
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You should be mindful of the side-effects caused by using `set-blocking`:
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* if your module sets blocking to `true`, it will effect other modules
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consuming your library. In [yargs](https://github.com/yargs/yargs/blob/master/yargs.js#L653) we only call
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`setBlocking(true)` once we already know we are about to call `process.exit(code)`.
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* this patch will not apply to subprocesses spawned with `isTTY = true`, this is
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the [default `spawn()` behavior](https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options).
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## License
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ISC
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