# Clientele.rs
[](https://unlicense.org)
[](https://rust-lang.org)
[](https://crates.io/crates/clientele)
[](https://docs.rs/clientele/)
**Clientele** makes it easy to write superb command-line utilities in Rust that
follow consistent best practices on all target platforms including Linux, macOS,
and Windows. It packages and re-exports [`clap`], [`camino`], [`dotenvy`],
[`argfile`], and [`wild`] into a single easy dependency.
## ✨ Features
- Showcases how to structure a CLI program in Rust (see the [examples](#-examples)).
- Loads environment variables from `.env` files (using the [`dotenvy`] crate).
- Expands wildcards (globs) on Windows (using the [`wild`] crate).
- Expands @argfiles similarly to [`javac`] or Python (using the [`argfile`] crate).
- Defines a standard set of essential CLI options (using the [`clap`] crate).
- Provides the [`Utf8Path`] and [`Utf8PathBuf`] types (using the [`camino`] crate).
- Recommends use of the [`sysexits.h(3)`] exit codes (see [`sysexits.rs`]).
- Supports opting out of any feature using comprehensive feature flags.
- Adheres to the Rust API Guidelines in its [naming conventions].
- 100% free and unencumbered public domain software.
## 🛠️ Prerequisites
- [Rust](https://rust-lang.org) 1.70+
## ⬇️ Installation
### Installation via Cargo
```bash
cargo add clientele
```
## 👉 Examples
See [`lib/clientele/examples/skeleton/main.rs`] for a complete example.
### Importing the library
```rust
use clientele::*;
```
## 📚 Reference
### Options
#### [`StandardOptions`]
```text
Options:
--color <COLOR> Set the color output mode [default: auto] [possible values: auto, always, never]
-d, --debug Enable debugging output
--license Show license information
-v, --verbose... Enable verbose output (may be repeated for more verbosity)
-V, --version Print version information
-h, --help Print help
```
## 👨💻 Development
```bash
git clone https://github.com/dryrust/clientele.rs.git
```
- - -
[](https://twitter.com/share?url=https://github.com/dryrust/clientele.rs&text=Clientele.rs)
[](https://reddit.com/submit?url=https://github.com/dryrust/clientele.rs&title=Clientele.rs)
[](https://news.ycombinator.com/submitlink?u=https://github.com/dryrust/clientele.rs&t=Clientele.rs)
[](https://www.facebook.com/sharer/sharer.php?u=https://github.com/dryrust/clientele.rs)
[naming conventions]: https://rust-lang.github.io/api-guidelines/naming.html
[`StandardOptions`]: https://docs.rs/clientele/latest/clientele/struct.StandardOptions.html
[`Utf8Path`]: https://docs.rs/camino/latest/camino/struct.Utf8Path.html
[`Utf8PathBuf`]: https://docs.rs/camino/latest/camino/struct.Utf8PathBuf.html
[`javac`]: https://docs.oracle.com/javase/7/docs/technotes/tools/windows/javac.html#commandlineargfile
[`lib/clientele/examples/skeleton/main.rs`]: lib/clientele/examples/skeleton/main.rs
[`argfile`]: https://crates.io/crates/argfile
[`camino`]: https://crates.io/crates/camino
[`clap`]: https://crates.io/crates/clap
[`dotenvy`]: https://crates.io/crates/dotenvy
[`wild`]: https://crates.io/crates/wild
[`sysexits.h(3)`]: https://man7.org/linux/man-pages/man3/sysexits.h.3head.html
[`sysexits.rs`]: lib/clientele/src/sysexits.rs