add a separate binary to debug GDFX parsing

src/bin/debug_list_files.rs

@@ -0,0 +1,52 @@
+#![feature(fs_try_exists)]
+
+use std::io::{BufReader, Read, Seek};
+
+use std::fs::File;
+use std::path::{Path, PathBuf};
+
+use anyhow::{Context, Error};
+
+use clap::{command, Parser};
+
+use iso2god::iso;
+
+#[derive(Parser)]
+#[command(author, version, about, long_about = None)]
+#[command(color = clap::ColorChoice::Never)]
+struct Cli {
+    /// Xbox 360 ISO file to convert
+    source_iso: PathBuf,
+}
+
+fn main() -> Result<(), Error> {
+    let args = Cli::parse();
+
+    println!("extracting ISO metadata");
+
+    let source_iso_file = open_file_for_buffered_reading(&args.source_iso)
+        .context("error opening source ISO file")?;
+
+    let source_iso = iso::IsoReader::read(BufReader::new(source_iso_file))
+        .context("error reading source ISO")?;
+
+    print_dir(String::new(), &source_iso.directory_table);
+
+    Ok(())
+}
+
+fn open_file_for_buffered_reading(path: &Path) -> Result<impl Read + Seek, Error> {
+    let file = File::options().read(true).open(path)?;
+    let file = BufReader::with_capacity(8 * 1024 * 1024, file);
+    Ok(file)
+}
+
+fn print_dir(path: String, dir: &iso::DirectoryTable) {
+    for entry in dir.entries.iter() {
+        if let Some(subdir) = &entry.subdirectory {
+            print_dir(path.clone() + "/" + &entry.name, subdir);
+        } else {
+            println!("{:9} {}/{}", entry.size, path, entry.name);
+        }
+    }
+}

src/iso/mod.rs

@@ -6,8 +6,8 @@ pub mod directory_table;
 pub mod iso_type;
 pub mod volume_descriptor;
 
-use directory_table::*;
-use volume_descriptor::*;
+pub use directory_table::*;
+pub use volume_descriptor::*;
 
 pub const SECTOR_SIZE: u64 = 0x800;