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pub fn user() -> anyhow::Result<String> {
Ok(users::get_current_username()
.ok_or_else(|| anyhow::anyhow!("couldn't get username"))?
.to_string_lossy()
.into_owned())
}
#[allow(clippy::unnecessary_wraps)]
pub fn prompt_char() -> anyhow::Result<String> {
if users::get_current_uid() == 0 {
Ok("#".into())
} else {
Ok("$".into())
}
}
pub fn hostname() -> anyhow::Result<String> {
let mut hostname = hostname::get()?.to_string_lossy().into_owned();
if let Some(idx) = hostname.find('.') {
hostname.truncate(idx);
}
Ok(hostname)
}
#[allow(clippy::unnecessary_wraps)]
pub fn time(offset: time::UtcOffset) -> anyhow::Result<String> {
Ok(crate::format::time(
time::OffsetDateTime::now_utc().to_offset(offset),
))
}
pub fn pid() -> String {
nix::unistd::getpid().to_string()
}
// the time crate is currently unable to get the local offset on unix due to
// soundness concerns, so we have to do it manually/:
//
// https://github.com/time-rs/time/issues/380
pub fn get_offset() -> time::UtcOffset {
let offset_str =
std::process::Command::new("date").args(&["+%:z"]).output();
if let Ok(offset_str) = offset_str {
let offset_str = String::from_utf8(offset_str.stdout).unwrap();
time::UtcOffset::parse(
offset_str.trim(),
&time::format_description::parse("[offset_hour]:[offset_minute]")
.unwrap(),
)
.unwrap_or(time::UtcOffset::UTC)
} else {
time::UtcOffset::UTC
}
}
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