dysk 2.7.0

give information on mounted filesystems
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//! This file is executed during compilation.
//! It builds shell completion scripts and the man page
//!
//! Note: to see the eprintln messages, run cargo with
//!     cargo -vv build --release
use {
    dysk_cli::args::Args,
    clap::CommandFactory,
    clap_complete::{Generator, Shell},
    std::{
        env,
        ffi::OsStr,
        path::PathBuf,
    },
};

fn write_completions_file<G: Generator + Copy, P: AsRef<OsStr>>(generator: G, out_dir: P) {
    let mut args = Args::command();
    clap_complete::generate_to(
        generator,
        &mut args,
        "dysk".to_string(),
        &out_dir,
    ).expect("clap complete generation failed");
}

/// write the shell completion scripts which will be added to
/// the release archive
fn build_completion_scripts() {
    let out_dir = env::var_os("OUT_DIR").expect("out dir not set");
    write_completions_file(Shell::Bash, &out_dir);
    write_completions_file(Shell::Elvish, &out_dir);
    write_completions_file(Shell::Fish, &out_dir);
    write_completions_file(Shell::Zsh, &out_dir);
    eprintln!("completion scripts generated in {out_dir:?}");
}

/// generate the man page from the Clap configuration
fn build_man_page() -> std::io::Result<()> {
    let out_dir = env::var_os("OUT_DIR").expect("out dir not set");
    let out_dir = PathBuf::from(out_dir);
    let cmd = Args::command();
    let man = clap_mangen::Man::new(cmd);
    let mut buffer: Vec<u8> = Default::default();
    man.render(&mut buffer)?;
    let file_path = out_dir.join("dysk.1");
    std::fs::write(&file_path, buffer)?;
    eprintln!("map page generated in {file_path:?}");
    Ok(())
}

fn main() -> std::io::Result<()> {
    build_completion_scripts();
    build_man_page()?;
    Ok(())
}