...

src/os/fs.rs

@@ -20,6 +20,7 @@ pub enum FsError {
     NotAFile(String),
     UnknownFileType(String),
     MetadataError(io::Error),
+    ChangeDirFailed(io::Error),
 }
 
 // Implement Display for FsError
@@ -38,6 +39,7 @@ impl fmt::Display for FsError {
             FsError::NotAFile(path) => write!(f, "Path '{}' is not a regular file", path),
             FsError::UnknownFileType(path) => write!(f, "Unknown file type at '{}'", path),
             FsError::MetadataError(e) => write!(f, "Failed to get file metadata: {}", e),
+            FsError::ChangeDirFailed(e) => write!(f, "Failed to change directory: {}", e),
         }
     }
 }
@@ -52,6 +54,7 @@ impl Error for FsError {
             FsError::CommandExecutionError(e) => Some(e),
             FsError::InvalidGlobPattern(e) => Some(e),
             FsError::MetadataError(e) => Some(e),
+            FsError::ChangeDirFailed(e) => Some(e),
             _ => None,
         }
     }
@@ -578,3 +581,41 @@ pub fn rsync(src: &str, dest: &str) -> Result<String, FsError> {
         Err(e) => Err(FsError::CommandExecutionError(e)),
     }
 }
+
+/**
+ * Change the current working directory.
+ *
+ * # Arguments
+ *
+ * * `path` - The path to change to
+ *
+ * # Returns
+ *
+ * * `Ok(String)` - A success message indicating the directory was changed
+ * * `Err(FsError)` - An error if the directory change failed
+ *
+ * # Examples
+ *
+ * ```
+ * let result = chdir("/path/to/directory")?;
+ * println!("{}", result);
+ * ```
+ */
+pub fn chdir(path: &str) -> Result<String, FsError> {
+    let path_obj = Path::new(path);
+    
+    // Check if directory exists
+    if !path_obj.exists() {
+        return Err(FsError::DirectoryNotFound(path.to_string()));
+    }
+    
+    // Check if it's a directory
+    if !path_obj.is_dir() {
+        return Err(FsError::NotADirectory(path.to_string()));
+    }
+    
+    // Change directory
+    std::env::set_current_dir(path_obj).map_err(FsError::ChangeDirFailed)?;
+    
+    Ok(format!("Successfully changed directory to '{}'", path))
+}