Remove unused Result (#849)

Remove some dead code, seems to be a refactoring oversight

crates/distribution-types/src/cached.rs

@@ -141,23 +141,16 @@ pub struct CachedWheel {
 
 impl CachedWheel {
     /// Try to parse a distribution from a cached directory name (like `typing-extensions-4.8.0-py3-none-any`).
-    pub fn from_path(path: &Path) -> Result<Option<Self>> {
-        let Some(file_name) = path.file_name() else {
-            return Ok(None);
-        };
-        let Some(file_name) = file_name.to_str() else {
-            return Ok(None);
-        };
-        let Ok(filename) = WheelFilename::from_stem(file_name) else {
-            return Ok(None);
-        };
+    pub fn from_path(path: &Path) -> Option<Self> {
+        let filename = path.file_name()?.to_str()?;
+        let filename = WheelFilename::from_stem(filename).ok()?;
         if path.is_file() {
-            return Ok(None);
+            return None;
         }
 
         let path = path.to_path_buf();
 
-        Ok(Some(Self { filename, path }))
+        Some(Self { filename, path })
     }
 
     /// Convert a [`CachedWheel`] into a [`CachedRegistryDist`].

crates/puffin-distribution/src/index/built_wheel_index.rs

@@ -1,6 +1,3 @@
-use fs_err as fs;
-use tracing::warn;
-
 use distribution_types::CachedWheel;
 use platform_tags::Tags;
 use puffin_cache::CacheShard;
@@ -31,8 +28,8 @@ impl BuiltWheelIndex {
 
         for subdir in directories(&**shard) {
             match CachedWheel::from_path(&subdir) {
-                Ok(None) => {}
-                Ok(Some(dist_info)) => {
+                None => {}
+                Some(dist_info) => {
                     // Pick the wheel with the highest priority
                     let compatibility = dist_info.filename.compatibility(tags);
 
@@ -56,18 +53,6 @@ impl BuiltWheelIndex {
                         candidate = Some(dist_info);
                     }
                 }
-                Err(err) => {
-                    warn!(
-                        "Invalid cache entry at {}, removing. {err}",
-                        subdir.display()
-                    );
-                    if let Err(err) = fs::remove_dir_all(&subdir) {
-                        warn!(
-                            "Failed to remove invalid cache entry at {}: {err}",
-                            subdir.display()
-                        );
-                    }
-                }
             }
         }
 

crates/puffin-distribution/src/index/registry_wheel_index.rs

@@ -2,9 +2,7 @@ use std::collections::hash_map::Entry;
 use std::collections::BTreeMap;
 use std::path::Path;
 
-use fs_err as fs;
 use rustc_hash::FxHashMap;
-use tracing::warn;
 
 use distribution_types::{CachedRegistryDist, CachedWheel, IndexUrls};
 use pep440_rs::Version;
@@ -110,8 +108,8 @@ impl<'a> RegistryWheelIndex<'a> {
     ) {
         for wheel_dir in directories(path.as_ref()) {
             match CachedWheel::from_path(&wheel_dir) {
-                Ok(None) => {}
-                Ok(Some(dist_info)) => {
+                None => {}
+                Some(dist_info) => {
                     let dist_info = dist_info.into_registry_dist();
 
                     // Pick the wheel with the highest priority
@@ -125,19 +123,6 @@ impl<'a> RegistryWheelIndex<'a> {
                         versions.insert(dist_info.filename.version.clone(), dist_info);
                     }
                 }
-                Err(err) => {
-                    warn!(
-                        "Invalid cache entry at {}, removing. {err}",
-                        wheel_dir.display()
-                    );
-
-                    if let Err(err) = fs::remove_dir_all(&wheel_dir) {
-                        warn!(
-                            "Failed to remove invalid cache entry at {}: {err}",
-                            wheel_dir.display()
-                        );
-                    }
-                }
             }
         }
     }