pier 0.1.6

A Linux script management tool
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35

use super::{home, pier_err, xdg_config_home, PierError, PierResult};
use dirs;
use std::{env, path::PathBuf};
pub const FALLBACK_COMMAND_DISPLAY_WIDTH: usize = 80;
pub const FALLBACK_SHELL: &'static str = "/bin/sh";

pub fn fallback_shell() -> Vec<String> {
    match env::var("SHELL") {
        Ok(shell) => vec![shell, String::from("-c")],
        Err(_) => vec![String::from(FALLBACK_SHELL), String::from("-c")],
    }
}

pub fn fallback_path() -> PierResult<PathBuf> {
    let default_config_paths: Vec<Option<PathBuf>> = vec![
        Some(PathBuf::from("pier.toml")),
        xdg_config_home!("pier/config.toml"),
        xdg_config_home!("pier/config"),
        xdg_config_home!("pier.toml"),
        home!(".pier.toml"),
        home!(".pier"), // Kept the .pier path for backwards compatibility
    ];

    // Loops for a vector of possible paths and tries to generate config from the first
    // default path that exists.
    for config_path in default_config_paths {
        if let Some(path) = config_path {
            if path.exists() {
                return Ok(path);
            }
        }
    }

    pier_err!(PierError::NoConfigFile)
}