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75 lines
1.7 KiB
75 lines
1.7 KiB
# atty
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[](https://travis-ci.org/softprops/atty) [](https://ci.appveyor.com/project/softprops/atty) [](https://coveralls.io/github/softprops/atty?branch=master) [](https://crates.io/crates/atty) [](http://docs.rs/atty) [](https://softprops.github.io/atty)
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> are you or are you not a tty?
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## install
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Add the following to your `Cargo.toml`
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```toml
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[dependencies]
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atty = "0.2"
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```
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## usage
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```rust
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use atty::Stream;
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fn main() {
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if atty::is(Stream::Stdout) {
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println!("I'm a terminal");
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} else {
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println!("I'm not");
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}
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}
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```
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## testing
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This library has been unit tested on both unix and windows platforms (via appveyor).
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A simple example program is provided in this repo to test various tty's. By default.
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It prints
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```bash
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$ cargo run --example atty
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stdout? true
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stderr? true
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stdin? true
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```
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To test std in, pipe some text to the program
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```bash
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$ echo "test" | cargo run --example atty
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stdout? true
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stderr? true
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stdin? false
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```
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To test std out, pipe the program to something
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```bash
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$ cargo run --example atty | grep std
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stdout? false
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stderr? true
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stdin? true
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```
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To test std err, pipe the program to something redirecting std err
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```bash
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$ cargo run --example atty 2>&1 | grep std
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stdout? false
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stderr? false
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stdin? true
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```
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Doug Tangren (softprops) 2015-2019
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