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use std::path::{Path, PathBuf};
use std::os::unix::prelude::*;
use std::collections::HashMap;
pub fn which<'a, 'b>(files: &'a [&'a str],
paths: &'a [&'a Path],
match_all: bool,
mut result: Option<&'b mut HashMap<&'a str, Vec<PathBuf>>>) -> Result<bool, String> {
let mut all_matched = true;
for f in files {
let mut matched = false;
for p in paths {
let mut target = p.to_path_buf();
target.push(f);
if !target.exists() {
continue;
}
let metadata =
target.metadata().map_err(|e| format!("read metadata failed: {}", e))?;
if metadata.mode() & 0o111 == 0 {
continue;
}
matched = true;
match result {
Some(ref mut r) => {
r.entry(f).or_insert(Vec::new());
if let Some(targets) = r.get_mut(f) {
targets.push(target);
}
}
None => {}
}
if !match_all {
break;
}
}
all_matched &= matched;
}
Ok(all_matched)
}