mirror of
https://github.com/Llewellynvdm/starship.git
synced 2025-01-11 17:38:48 +00:00
54 lines
1.7 KiB
Rust
54 lines
1.7 KiB
Rust
use ansi_term::{Color, Style};
|
|
use std::env;
|
|
use std::process::Command;
|
|
|
|
use super::{Context, Module};
|
|
|
|
/// Creates a module with the current user's username
|
|
///
|
|
/// Will display the username if any of the following criteria are met:
|
|
/// - The current user isn't the same as the one that is logged in (`$LOGNAME` != `$USER`)
|
|
/// - The current user is root (UID = 0)
|
|
/// - The user is currently connected as an SSH session (`$SSH_CONNECTION`)
|
|
pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
|
|
let user = env::var("USER").ok();
|
|
let logname = env::var("LOGNAME").ok();
|
|
let ssh_connection = env::var("SSH_CONNECTION").ok();
|
|
|
|
const ROOT_UID: Option<u32> = Some(0);
|
|
let user_uid = get_uid();
|
|
|
|
let mut module = context.new_module("username");
|
|
let show_always = module.config_value_bool("show_always").unwrap_or(false);
|
|
|
|
if user != logname || ssh_connection.is_some() || user_uid == ROOT_UID || show_always {
|
|
let module_style = get_mod_style(user_uid, &module);
|
|
module.set_style(module_style);
|
|
module.new_segment("username", &user?);
|
|
|
|
return Some(module);
|
|
}
|
|
|
|
None
|
|
}
|
|
|
|
fn get_uid() -> Option<u32> {
|
|
match Command::new("id").arg("-u").output() {
|
|
Ok(output) => String::from_utf8(output.stdout)
|
|
.map(|uid| uid.trim().parse::<u32>().ok())
|
|
.ok()?,
|
|
Err(_) => None,
|
|
}
|
|
}
|
|
|
|
fn get_mod_style(user_uid: Option<u32>, module: &Module) -> Style {
|
|
match user_uid {
|
|
Some(0) => module
|
|
.config_value_style("style_root")
|
|
.unwrap_or_else(|| Color::Red.bold()),
|
|
_ => module
|
|
.config_value_style("style_user")
|
|
.unwrap_or_else(|| Color::Yellow.bold()),
|
|
}
|
|
}
|