bnd: WIP

src/unpackers/bnd.rs

@@ -12,28 +12,36 @@ use crate::utils::fs as fs_utils;
 ///
 /// Wraps around `extract_bnd` to load the BND from disk.
 pub fn extract_bnd_file(bnd_path: &str, output_path: &str) -> Result<(), UnpackError> {
-    let bnd = load_bnd_file(bnd_path)?;
-    extract_bnd(bnd, output_path)?;
+    let (bnd, data) = load_bnd_file(bnd_path)?;
+    extract_bnd(bnd, data, output_path)?;
     Ok(())
 }
 
 /// Extract BND contents to disk.
-pub fn extract_bnd(bnd: bnd::Bnd, output_path: &str) -> Result<(), UnpackError> {
+///
+/// Files in the BND are written in the output_path directory, creating it if needed, without
+/// preserving directory structure. If the BND do not contain paths, it will be named after its ID.
+/// If it does not have IDs, consecutive integers will be used.
+pub fn extract_bnd(bnd: bnd::Bnd, data: Vec<u8>, output_path: &str) -> Result<(), UnpackError> {
     let output_path = path::Path::new(output_path);
     fs_utils::ensure_dir_exists(output_path)?;
+    for info in &bnd.file_infos {
+        // TODO
+    }
     //output_file.write_all(&decomp_data)?;
     Ok(())
 }
 
 /// Load a BND file from disk.
 ///
-/// Wraps around `load_bnd` to load the BND from disk.
-pub fn load_bnd_file(bnd_path: &str) -> Result<bnd::Bnd, UnpackError> {
+/// Wraps around `load_bnd` to load the BND from disk. It returns the
+/// parsed BND metadata and the whole file as a byte vector.
+pub fn load_bnd_file(bnd_path: &str) -> Result<(bnd::Bnd, Vec<u8>), UnpackError> {
     let mut bnd_file = fs::File::open(bnd_path)?;
     let file_len = bnd_file.metadata()?.len() as usize;
     let mut bnd_data = vec![0u8; file_len];
     bnd_file.read_exact(&mut bnd_data)?;
-    load_bnd(&bnd_data)
+    Ok((load_bnd(&bnd_data)?, bnd_data))
 }
 
 /// Load a BND file from a bytes slice.