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58 lines
1.7 KiB
58 lines
1.7 KiB
use std::{fs::metadata, path::PathBuf, str::FromStr};
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use crate::error::ShellError;
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use super::{Builtin, BuiltinConfig};
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pub struct Ls;
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impl Builtin for Ls {
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fn execute(&mut self, _: &mut BuiltinConfig, _: Vec<String>) -> Result<(), ShellError> {
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let dir = std::env::current_dir().unwrap_or(PathBuf::from_str("/").unwrap());
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let entries = match std::fs::read_dir(dir) {
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Ok(e) => e,
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Err(e) => return Err(ShellError::ExecuteFailure(e.to_string())),
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};
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//for entry in entries.by_ref().into_iter() {}
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for entry in entries {
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let entry = match entry {
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Ok(e) => e,
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Err(_) => {
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println!("Couldn't get directory entry");
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continue;
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}
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};
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let metadata = match metadata(entry.path()) {
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Ok(m) => m,
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Err(_) => {
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continue;
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}
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};
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let file_name = entry.file_name().to_string_lossy().to_string();
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let mut file_type = "unknown";
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if metadata.file_type().is_dir() {
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file_type = "dir"
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} else if metadata.file_type().is_file() {
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file_type = "file"
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} else if metadata.file_type().is_symlink() {
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file_type = "link"
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}
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println!(
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"{:} | {:4} | {}",
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right_padding(&file_name, 16),
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file_type,
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metadata.len()
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)
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}
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Ok(())
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}
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}
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fn right_padding(s: &str, max: usize) -> String {
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let mut tmp = String::from_str(s).unwrap();
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for _ in tmp.len()..max {
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tmp.push(' ');
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}
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tmp
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}
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