60 lines
2.0 KiB
Rust
60 lines
2.0 KiB
Rust
use clap::{Arg, ArgAction, ArgMatches, Command, ValueHint};
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use shitbox::Cmd;
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use std::{fs, path::PathBuf};
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#[derive(Debug)]
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pub struct Readlink;
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impl Cmd for Readlink {
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fn cli(&self) -> clap::Command {
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Command::new("readlink")
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.about("Print symbolic link target or canonical file name")
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.version(env!("CARGO_PKG_VERSION"))
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.author("Nathan Fisher")
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.args([
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Arg::new("path")
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.value_name("PATH")
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.value_hint(ValueHint::AnyPath)
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.num_args(1..)
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.required(true),
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Arg::new("canon")
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.help("Canonicalize path")
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.short('f')
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.visible_short_alias('c')
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.long("canonicalize")
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.action(ArgAction::SetTrue),
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Arg::new("newline")
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.help("Do not print the terminating newline.")
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.short('n')
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.long("no-newline")
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.action(ArgAction::SetTrue),
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])
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}
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fn run(&self, matches: &ArgMatches) -> Result<(), Box<dyn std::error::Error>> {
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if let Some(paths) = matches.get_many::<String>("path") {
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let paths: Vec<_> = paths.collect();
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let len = paths.len();
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if matches.get_flag("newline") && len > 1 {
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eprintln!("readlink: ignoring --no-newline with multiple arguments");
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}
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for p in paths {
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let path = if matches.get_flag("canon") {
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PathBuf::from(p).canonicalize()?
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} else {
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fs::read_link(p)?
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};
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print!("{}", path.display());
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if !matches.get_flag("newline") || len > 1 {
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println!();
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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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