update cleanup function api

src/main.rs

@@ -126,7 +126,7 @@ async fn main() -> Result<()> {
                                                     .await?;
                                                 // cleanup irrelevant files (see rqbit#408)
                                                 if let Some(ref r) = arg.preload_regex {
-                                                    storage.purge_preload_regex(&i, r)?;
+                                                    storage.cleanup(&i, r)?;
                                                 }
                                                 // ignore on the next crawl iterations for this session
                                                 index.insert(mt.info_hash().as_string());

src/storage.rs

@@ -53,16 +53,17 @@ impl Storage {
         Ok(p.to_string_lossy().to_string())
     }
 
-    /// Recursively remove all files match `pattern` under `infohash` location
+    /// Recursively remove all files under the `infohash` location
-    pub fn purge_preload_regex(&self, infohash: &str, pattern: &str) -> Result<()> {
+    /// that do not match the `skip_filename_pattern` (see rqbit#408)
-        let r = regex::Regex::new(pattern)?;
+    pub fn cleanup(&self, infohash: &str, skip_filename_pattern: &str) -> Result<()> {
+        let r = regex::Regex::new(skip_filename_pattern)?;
         for e in walkdir::WalkDir::new(self.output_folder(infohash, false)?)
             .into_iter()
             .filter_map(Result::ok)
         {
             let p = e.path();
             if p.is_file() && !r.is_match(p.to_str().unwrap()) {
-                std::fs::remove_file(p)?;
+                fs::remove_file(p)?;
             }
         }
         Ok(())