build.rs

use std::fs;
use std::path::Path;

use clap::CommandFactory;
use clap_complete::Shell;

#[path = "src/cli.rs"]
mod cli;

fn main() {
    let mut cmd = cli::Cli::command();
    let name = "envex";

    // -- Shell completions --
    let comp_dir = Path::new("completions");
    fs::create_dir_all(comp_dir).unwrap();

    for shell in [
        Shell::Bash,
        Shell::Zsh,
        Shell::Fish,
        Shell::Elvish,
        Shell::PowerShell,
    ] {
        clap_complete::generate_to(shell, &mut cmd, name, comp_dir).unwrap();
    }

    // -- Man page --
    let man_dir = Path::new("man");
    fs::create_dir_all(man_dir).unwrap();

    let man = clap_mangen::Man::new(cmd);
    let mut buf = Vec::new();
    man.render(&mut buf).unwrap();
    fs::write(man_dir.join("envex.1"), buf).unwrap();
}