Finished (?) extraction

Fixed missing zlib_compat (updated library)

src/file.zig

@@ -64,7 +64,7 @@ pub fn deinit(self: SfsFile) void {
 
 /// Attempts to open the filepath if the SfsFile is a directory.
 /// If the given path refers to itself (such as "" or "."), a copied SfsFile is returned.
-pub fn open(self: SfsFile, alloc: std.mem.Allocator, io: Io, filepath: []const u8) !SfsFile {
+pub fn open(self: *SfsFile, alloc: std.mem.Allocator, io: Io, filepath: []const u8) !SfsFile {
     const path = std.mem.trim(u8, filepath, "/");
 
     const first_element: []const u8 = std.mem.sliceTo(path, '/');
@@ -86,17 +86,13 @@ pub fn open(self: SfsFile, alloc: std.mem.Allocator, io: Io, filepath: []const u
     }
     if (first_element.len == path.len) return .initDirEntry(alloc, io, self.archive, cur_slice[idx]);
     if (cur_slice[idx].type != .dir) return error.NotFound;
-    const tmp_file: SfsFile = try .initDirEntry(alloc, io, self.archive, cur_slice[idx]);
+    var tmp_file: SfsFile = try .initDirEntry(alloc, io, self.archive, cur_slice[idx]);
     defer tmp_file.deinit();
 
     return tmp_file.open(alloc, io, path[first_element.len..]);
 }
 
-pub fn extract(self: SfsFile, alloc: std.mem.Allocator, io: Io, ext_dir: []const u8, options: ExtractionOptions) !void {
-    _ = self;
-    _ = alloc;
-    _ = io;
-    _ = ext_dir;
-    _ = options;
-    return error.TODO;
+const Extract = @import("extract.zig");
+pub fn extract(self: *SfsFile, alloc: std.mem.Allocator, io: Io, ext_dir: []const u8, options: ExtractionOptions) !void {
+    return Extract.extract(alloc, io, self.inode, &self.archive.cache, self.archive.super, ext_dir, options);
 }