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use std::env;
use std::os::unix::net::UnixStream;
use anyhow::Result;
use lazy_static::lazy_static;
use regex::Regex;
use crate::{conn::Conn, fid, fsys};
pub fn dial(addr: &str) -> Result<Conn> {
let stream = UnixStream::connect(addr)?;
Conn::new(stream)
}
pub fn dial_service(service: &str) -> Result<Conn> {
let ns = namespace();
dial((ns + "/" + service).as_str())
}
pub fn mount_service(service: &str) -> Result<fsys::Fsys> {
let mut conn = dial_service(service)?;
let fsys = conn.attach(fid::get_user(), "".to_string())?;
Ok(fsys)
}
pub fn namespace() -> String {
if let Ok(val) = env::var("NAMESPACE") {
return val;
}
let mut disp = if let Ok(val) = env::var("DISPLAY") {
val
} else {
String::from(":0.0")
};
lazy_static! {
static ref DOT_ZERO: Regex = Regex::new(r"\A(.*:\d+)\.0\z").unwrap();
}
if let Some(m) = DOT_ZERO.captures(disp.as_str()) {
disp = m.get(1).unwrap().as_str().to_string();
}
format!("/tmp/ns.{}.{}", env::var("USER").unwrap(), disp)
}