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Code Issues Releases Activity

perf(username): get uid without external command (#2286)

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This commit is contained in:
David Knaack 2021-02-09 18:41:09 +01:00 committed by GitHub
parent e7246cee82
commit e8a02e7d53
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1 changed files with 12 additions and 17 deletions
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29
src/modules/username.rs
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@ -2,9 +2,7 @@ use super::{Context, Module, RootModuleConfig};
use crate::configs::username::UsernameConfig;
use crate::formatter::StringFormatter;
use crate::utils;
const ROOT_UID: Option<u32> = Some(0);
#[cfg(not(target_os = "windows"))]
const USERNAME_ENV_VAR: &str = "USER";
@ -21,13 +19,7 @@ pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
let username = context.get_env(USERNAME_ENV_VAR)?;
let logname = context.get_env("LOGNAME");
let is_root = if cfg!(not(target_os = "windows")) {
let user_uid = get_uid();
user_uid == ROOT_UID
} else {
false
};
let is_root = is_root_user();
let is_not_login = logname.is_some() && username != logname.unwrap();
let mut module = context.new_module("username");
@ -67,19 +59,22 @@ pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
}
}
#[cfg(target_os = "windows")]
fn is_root_user() -> bool {
false
}
#[cfg(not(target_os = "windows"))]
fn is_root_user() -> bool {
let user_uid = nix::unistd::geteuid();
user_uid == nix::unistd::ROOT
}
fn is_ssh_connection(context: &Context) -> bool {
let ssh_env = ["SSH_CONNECTION", "SSH_CLIENT", "SSH_TTY"];
ssh_env.iter().any(|env| context.get_env(env).is_some())
}
fn get_uid() -> Option<u32> {
utils::exec_cmd("id", &["-u"])?
.stdout
.trim()
.parse::<u32>()
.ok()
}
#[cfg(test)]
mod tests {
use crate::test::ModuleRenderer;