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1 | # set-blocking
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2 |
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3 | [![Build Status](https://travis-ci.org/yargs/set-blocking.svg)](https://travis-ci.org/yargs/set-blocking)
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4 | [![NPM version](https://img.shields.io/npm/v/set-blocking.svg)](https://www.npmjs.com/package/set-blocking)
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5 | [![Coverage Status](https://coveralls.io/repos/yargs/set-blocking/badge.svg?branch=)](https://coveralls.io/r/yargs/set-blocking?branch=master)
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6 | [![Standard Version](https://img.shields.io/badge/release-standard%20version-brightgreen.svg)](https://github.com/conventional-changelog/standard-version)
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7 |
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8 | set blocking `stdio` and `stderr` ensuring that terminal output does not truncate.
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9 |
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10 | ```js
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11 | const setBlocking = require('set-blocking')
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12 | setBlocking(true)
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13 | console.log(someLargeStringToOutput)
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14 | ```
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15 |
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16 | ## Historical Context/Word of Warning
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17 |
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18 | 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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19 | newer versions of Node.js (`0.12+`), truncating terminal output.
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20 |
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21 | You should be mindful of the side-effects caused by using `set-blocking`:
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22 |
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23 | * if your module sets blocking to `true`, it will effect other modules
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24 | consuming your library. In [yargs](https://github.com/yargs/yargs/blob/master/yargs.js#L653) we only call
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25 | `setBlocking(true)` once we already know we are about to call `process.exit(code)`.
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26 | * this patch will not apply to subprocesses spawned with `isTTY = true`, this is
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27 | the [default `spawn()` behavior](https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options).
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28 |
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29 | ## License
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30 |
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31 | ISC
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