Error: Invalid argument (os error 22)

[cafkafk]

I cargo run'ed this on /, and I keep getting

Error: Invalid argument (os error 22)

Caused by:
    Invalid argument (os error 22)

It also happens on ./target/release/drupes /, but not other dirs like e.g. ~/.

(I know this is a "toy" project... but hey, here's something to do if you get bored)

[cbiffle]

Hmmmmm. There's likely not a lot I can do about that -- it's probably inside the directory traversal crate I'm using, because starting at / will find a lot of things that aren't really directories. Like much of /dev, all of /sys on Linux, /proc, etc. (I wouldn't recommend applying the program to /dev!)

I could add a warning if you pass the literal path /, I suppose.

[cafkafk]

Just out of curiosity, I decided to give this a quick look, and got stuck on a bunch of varying os errors (3, 13, 22).

index 1394bb8..03b99cc 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -70,8 +70,10 @@ fn main() -> anyhow::Result<()> {
     let mut paths: BTreeMap<u64, Vec<PathBuf>> = BTreeMap::new();
     for root in &args.roots {
         for entry in WalkDir::new(root) {
-            let entry = entry?;
-            let meta = entry.metadata()?;
+            let Ok(entry) = entry else {
+                continue;
+            };
+            let Ok(meta) = entry.metadata() else {continue;};
             if meta.is_file() && (meta.len() > 0 || args.empty) {
                 paths.entry(meta.len())
                     .or_default()

The above isn't really ideal error handling, but just skipping those did let the program finish. I suppose one approach could be to do like rg and just skip --- but report --- filesystem failures and their location (e.g. see rg hello /proc).