Huge refactor. Introduce anyhow for error handling.

src/cli.rs

@@ -0,0 +1,32 @@
+use std::path::PathBuf;
+
+use crate::FB_SECTOR_SIZE;
+
+use clap::Parser;
+
+#[derive(Parser, Debug)]
+pub struct Args {
+    /// Path to source file or block device
+    #[arg(short, long, value_hint = clap::ValueHint::DirPath)]
+    pub input: PathBuf,
+
+    /// Path to output file. Defaults to {input}.iso
+    #[arg(short, long, value_hint = clap::ValueHint::DirPath)]
+    pub output: Option<PathBuf>,
+
+    /// Path to rescue map. Defaults to {input}.map
+    #[arg(short, long, value_hint = clap::ValueHint::DirPath)]
+    pub map: Option<PathBuf>,
+
+    /// Max number of consecutive sectors to test as a group
+    #[arg(short, long, default_value_t = 128)]
+    pub cluster_length: u16,
+
+    /// Number of brute force read passes
+    #[arg(short, long, default_value_t = 2)]
+    pub brute_passes: usize,
+
+    /// Sector size
+    #[arg(short, long, default_value_t = FB_SECTOR_SIZE)]
+    pub sector_size: u16,
+}