1 files changed, 42 insertions, 0 deletions
diff --git a/src/path.rs b/src/path.rs
new file mode 100644
index 0000000..28eb45b
--- /dev/null
+++ b/src/path.rs
@@ -0,0 +1,42 @@
+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
+}