trying to figure out what's borking entry

src/entry.rs

@@ -7,7 +7,7 @@ pub struct Entry {
     pub offset: u64,
     pub compressed: u64,
     pub uncompressed: u64,
-    pub compression_method: Compression,
+    pub compression: Compression,
     pub timestamp: Option<u64>,
     pub hash: [u8; 20],
     pub compression_blocks: Option<Vec<Block>>,
@@ -23,7 +23,7 @@ impl Entry {
         let offset = reader.read_u64::<LE>()?;
         let compressed = reader.read_u64::<LE>()?;
         let uncompressed = reader.read_u64::<LE>()?;
-        let compression_method = match reader.read_u32::<LE>()? {
+        let compression = match reader.read_u32::<LE>()? {
             0x01 | 0x10 | 0x20 => Compression::Zlib,
             _ => Compression::None,
         };
@@ -31,14 +31,14 @@ impl Entry {
             offset,
             compressed,
             uncompressed,
-            compression_method,
+            compression,
             timestamp: match version == Version::Initial {
                 true => Some(reader.read_u64::<LE>()?),
                 false => None,
             },
             hash: reader.read_guid()?,
             compression_blocks: match version >= Version::CompressionEncryption
-                && compression_method != Compression::None
+                && compression != Compression::None
             {
                 true => Some(reader.read_array(Block::new)?),
                 false => None,

src/footer.rs

@@ -14,7 +14,7 @@ pub struct Footer {
     pub size: u64,
     pub hash: [u8; 20],
     pub frozen: bool,
-    pub compression: Option<Vec<Compression>>,
+    pub compression: Vec<Compression>,
 }
 
 impl Footer {
@@ -31,12 +31,11 @@ impl Footer {
             size: reader.read_u64::<LE>()?,
             hash: reader.read_guid()?,
             frozen: version == Version::FrozenIndex && reader.read_bool()?,
-            compression: match version >= Version::FNameBasedCompression {
-                true => {
-                    let mut compression =
-                        Vec::with_capacity(match version == Version::FNameBasedCompression {
-                            true => 4,
-                            false => 5,
+            compression: {
+                let mut compression = Vec::with_capacity(match version {
+                    ver if ver < Version::FNameBasedCompression => 0,
+                    Version::FNameBasedCompression => 4,
+                    _ => 5,
                 });
                 for _ in 0..compression.capacity() {
                     compression.push(
@@ -51,9 +50,7 @@ impl Footer {
                         .unwrap_or_default(),
                     )
                 }
-                    Some(compression)
-                }
-                false => None,
+                compression
             },
         };
         if super::MAGIC != footer.magic {

src/lib.rs

@@ -24,7 +24,6 @@ pub enum Version {
     EncryptionKeyGuid,     // include key GUID
     FNameBasedCompression, // compression names included
     FrozenIndex,           // frozen index byte included
-    PathHashIndex,         // more compression methods
 }
 
 // strum shouldn't need to be installed by users
@@ -32,6 +31,32 @@ impl Version {
     pub fn iter() -> VersionIter {
         <Version as strum::IntoEnumIterator>::iter()
     }
+
+    pub fn size(self) -> i64 {
+        // (magic + version): u32 + (offset + size): u64 + hash: [u8; 20]
+        let mut size = 4 + 4 + 8 + 8 + 20;
+        if self >= Version::EncryptionKeyGuid {
+            // encryption uuid: u128
+            size += 16;
+        }
+        if self >= Version::IndexEncryption {
+            // encrypted: bool
+            size += 1;
+        }
+        if self == Version::FrozenIndex {
+            // frozen index: bool
+            size += 1;
+        }
+        if self >= Version::FNameBasedCompression {
+            // compression names: [[u8; 32]; 4]
+            size += 32 * 4;
+        }
+        if self >= Version::FrozenIndex {
+            // extra compression name: [u8; 32]
+            size += 32
+        }
+        size
+    }
 }
 
 #[derive(Default, Clone, Copy, PartialEq, Eq, Debug, strum::Display, strum::EnumString)]

src/pak.rs

@@ -17,15 +17,15 @@ impl Pak {
         version: super::Version,
         mut reader: R,
     ) -> Result<Self, super::Error> {
-        reader.seek(io::SeekFrom::End(-footer_size(&version)))?;
+        reader.seek(io::SeekFrom::End(-version.size()))?;
         let footer = super::Footer::new(&mut reader, version)?;
         reader.seek(io::SeekFrom::Start(footer.offset))?;
         let mount_point = reader.read_string()?;
         let mut entries = hashbrown::HashMap::with_capacity(reader.read_u32::<LE>()? as usize);
         for _ in 0..entries.capacity() {
             entries.insert(
-                reader.read_string()?,
-                super::Entry::new(&mut reader, version)?,
+                dbg!(reader.read_string()?),
+                dbg!(super::Entry::new(&mut reader, version)?),
             );
         }
         Ok(Self {
@@ -35,29 +35,3 @@ impl Pak {
         })
     }
 }
-
-fn footer_size(version: &Version) -> i64 {
-    // (magic + version): u32 + (offset + size): u64 + hash: [u8; 20]
-    let mut size = 4 + 4 + 8 + 8 + 20;
-    if version >= &Version::EncryptionKeyGuid {
-        // encryption uuid: u128
-        size += 16;
-    }
-    if version >= &Version::IndexEncryption {
-        // encrypted: bool
-        size += 1;
-    }
-    if version == &Version::FrozenIndex {
-        // frozen index: bool
-        size += 1;
-    }
-    if version >= &Version::FNameBasedCompression {
-        // compression names: [[u8; 32]; 4]
-        size += 32 * 4;
-    }
-    if version >= &Version::FrozenIndex {
-        // extra compression name: [u8; 32]
-        size += 32
-    }
-    size
-}