50 lines
1.4 KiB
Rust
50 lines
1.4 KiB
Rust
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use clap::{Arg, ArgAction, Command};
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use shitbox::Cmd;
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use utmp_rs::UtmpEntry;
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#[derive(Debug, Default)]
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pub struct Who;
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impl Cmd for Who {
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fn cli(&self) -> Command {
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Command::new("who")
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.about("show who is logged on")
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.author("Nathan Fisher")
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.version(env!("CARGO_PKG_VERSION"))
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.arg(
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Arg::new("heading")
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.help("print line of column headings")
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.short('H')
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.long("heading")
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.action(ArgAction::SetTrue),
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)
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}
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fn run(&self, matches: &clap::ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
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if matches.get_flag("heading") {
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println!("NAME LINE TIME");
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}
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let entries = utmp_rs::parse_from_path("/var/run/utmp")?;
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for e in entries.iter() {
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match e {
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UtmpEntry::UserProcess {
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pid: _,
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line,
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user,
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host: _,
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session: _,
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time,
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} => {
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println!("{user:9}{line:13}{} {}:{}", time.date(), time.hour(), time.minute());
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}
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_ => {}
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}
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}
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Ok(())
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}
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fn path(&self) -> Option<shitbox::Path> {
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Some(shitbox::Path::UsrBin)
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}
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}
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