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use std::fs;
use std::path::Path;
/// Refresh the shell's $PATH
///
/// This function caches all valid paths within within the directories
/// specified.
///
/// # Arguments
/// * `paths` - A reference to a vector that holds a list to the shell $PATHs
///
/// # Returns
/// * `bins: Vec<String>` - A new cache of all valid file paths in $PATH
///
/// # Examples
/// ```
/// let path = vec!["/bin"];
/// let path = path.into_iter().map(Path::new).collect();
/// let mut bins = prefresh(&path);
/// ...
/// // A situation occurs where the $PATH needs to be refreshed
/// bins = prefresh(&path)
/// ```
pub fn prefresh(path: &Vec<&Path>) -> Vec<String> {
let mut bins: Vec<String> = Vec::new();
for p in path {
let files = fs::read_dir(p).expect(
format!(
"dwvsh: error: unable to read the contents of {}",
p.display().to_string()
)
.as_str(),
);
for file in files {
bins.push(file.unwrap().path().display().to_string());
}
}
bins
}
|
