refactor: listen to clippy a lil

libarchive/src/archive.rs

@@ -59,6 +59,21 @@ pub enum ReadFilter {
     Zstd
 }
 
+impl ReadFilter {
+    // Returns the associated file extension for the filter, if known
+    pub fn extension(&self) -> Option<&str> {
+        match self {
+            ReadFilter::None => Some(""),
+            ReadFilter::Gzip => Some(".gz"),
+            ReadFilter::Bzip2 => Some(".bz2"),
+            ReadFilter::Lzma => Some(".lzma"),
+            ReadFilter::Xz => Some(".xz"),
+            ReadFilter::Zstd => Some(".zstd"),
+            _ => None
+        }
+    }
+}
+
 #[derive(Debug, PartialEq, Eq)]
 pub enum WriteFormat {
     SevenZip,