first commit

1 files changed, 39 insertions, 0 deletions

diff --git a/karyons_core/src/utils/path.rs b/karyons_core/src/utils/path.rs
new file mode 100644
index 0000000..2cd900a
--- /dev/null
+++ b/karyons_core/src/utils/path.rs
@@ -0,0 +1,39 @@
+use std::path::PathBuf;
+
+use crate::{error::Error, Result};
+
+/// Returns the user's home directory as a `PathBuf`.
+#[allow(dead_code)]
+pub fn home_dir() -> Result<PathBuf> {
+    dirs::home_dir().ok_or(Error::PathNotFound("Home dir not found"))
+}
+
+/// Expands a tilde (~) in a path and returns the expanded `PathBuf`.
+#[allow(dead_code)]
+pub fn tilde_expand(path: &str) -> Result<PathBuf> {
+    match path {
+        "~" => home_dir(),
+        p if p.starts_with("~/") => Ok(home_dir()?.join(&path[2..])),
+        _ => Ok(PathBuf::from(path)),
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_tilde_expand() {
+        let path = "~/src";
+        let expanded_path = dirs::home_dir().unwrap().join("src");
+        assert_eq!(tilde_expand(path).unwrap(), expanded_path);
+
+        let path = "~";
+        let expanded_path = dirs::home_dir().unwrap();
+        assert_eq!(tilde_expand(path).unwrap(), expanded_path);
+
+        let path = "";
+        let expanded_path = PathBuf::from("");
+        assert_eq!(tilde_expand(path).unwrap(), expanded_path);
+    }
+}