Wave 6: Integration tests, golden tests, index invariant tests, diff command (bd-rex, bd-2gp, bd-1ck)

src/utils.rs

@@ -1 +1,16 @@
-// Utility functions
+use std::path::Path;
+
+/// Compute total size of files in a directory (non-recursive, skips symlinks).
+///
+/// Used by doctor and cache commands to report disk usage per alias.
+pub fn dir_size(path: &Path) -> u64 {
+    let Ok(entries) = std::fs::read_dir(path) else {
+        return 0;
+    };
+    entries
+        .filter_map(Result::ok)
+        .filter_map(|e| e.metadata().ok())
+        .filter(|m| m.is_file())
+        .map(|m| m.len())
+        .sum()
+}