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52 lines
1.9 KiB
52 lines
1.9 KiB
3 years ago
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# is-interactive [](https://travis-ci.com/sindresorhus/is-interactive)
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> Check if stdout or stderr is [interactive](https://unix.stackexchange.com/a/43389/7678)
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It checks that the stream is [TTY](https://jameshfisher.com/2017/12/09/what-is-a-tty/), not a dumb terminal, and not running in a CI.
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This can be useful to decide whether to present interactive UI or animations in the terminal.
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## Install
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```
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$ npm install is-interactive
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```
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## Usage
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```js
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const isInteractive = require('is-interactive');
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isInteractive();
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//=> true
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```
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## API
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### isInteractive(options?)
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#### options
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Type: `object`
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##### stream
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Type: [`stream.Writable`](https://nodejs.org/api/stream.html#stream_class_stream_writable)<br>
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Default: [`process.stdout`](https://nodejs.org/api/process.html#process_process_stdout)
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The stream to check.
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## FAQ
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#### Why are you not using [`ci-info`](https://github.com/watson/ci-info) for the CI check?
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It's silly to have to detect individual CIs. They should identify themselves with the `CI` environment variable, and most do just that. A manually maintained list of detections will easily get out of date. And if a package using `ci-info` doesn't update to the latest version all the time, they will not support certain CIs. It also creates unpredictability as you might assume a CI is not supported and then suddenly it gets supported and you didn't account for that. In addition, some of the manual detections are loose and might cause false-positives which could create hard-to-debug bugs.
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#### Why does this even exist? It's just a few lines.
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It's not about the number of lines, but rather discoverability and documentation. A lot of people wouldn't even know they need this. Feel free to copy-paste the code if you don't want the dependency. You might also want to read [this blog post](https://blog.sindresorhus.com/small-focused-modules-9238d977a92a).
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