Add zstd decompression

repak/Cargo.toml

@@ -18,6 +18,7 @@ ureq = "2.6.2"
 hex-literal = "0.4.1"
 hex = { workspace = true }
 once_cell = "1.17.1"
+zstd = "0.12.3"
 
 [dev-dependencies]
 base64 = { workspace = true }

repak/src/entry.rs

@@ -362,6 +362,11 @@ impl Entry {
             None => buf.write_all(&data)?,
             Some(Compression::Zlib) => decompress!(flate2::read::ZlibDecoder<&[u8]>),
             Some(Compression::Gzip) => decompress!(flate2::read::GzDecoder<&[u8]>),
+            Some(Compression::Zstd) => {
+                for range in ranges {
+                    io::copy(&mut zstd::stream::read::Decoder::new(&data[range])?, buf)?;
+                }
+            }
             Some(Compression::Oodle) => {
                 #[cfg(not(target_os = "windows"))]
                 return Err(super::Error::Oodle);

repak/src/lib.rs

@@ -117,4 +117,5 @@ pub enum Compression {
     Zlib,
     Gzip,
     Oodle,
+    Zstd,
 }