mirror of
https://github.com/clap-rs/clap
synced 2024-11-15 00:57:15 +00:00
29 lines
1.1 KiB
Rust
29 lines
1.1 KiB
Rust
#[macro_use]
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extern crate clap;
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use clap::App;
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fn main() {
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// You can have clap pull the application version directly from your Cargo.toml starting with
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// clap v0.4.14 on crates.io (or master#a81f915 on github). Using Rust's env! macro like this:
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//
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// let version = format!("{}.{}.{}{}",
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// env!("CARGO_PKG_VERSION_MAJOR"),
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// env!("CARGO_PKG_VERSION_MINOR"),
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// env!("CARGO_PKG_VERSION_PATCH"),
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// option_env!("CARGO_PKG_VERSION_PRE").unwrap_or(""));
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//
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// Starting from v0.6.6 on crates.io you can also use the crate_version!() macro instead of
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// manually using the env!() macros. Under the hood, the macro uses this exact method to get
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// the version.
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//
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// Thanks to https://github.com/jhelwig for pointing this out
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App::new("myapp")
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.about("does awesome things")
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// use crate_version! to pull the version number
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.version(&crate_version!()[..])
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.get_matches();
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// running the this app with the -V or --version will display whatever version is in your
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// Cargo.toml, the default being: myapp 0.0.1
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}
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