Allow -nt option anywhere in arguments

Author: aNNiMON

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "exifgeo"
-version = "0.1.0"
+version = "0.2.0"
 edition = "2021"
 
 [profile.release]

Cargo.toml

@@ -47,17 +47,22 @@ impl ThumbMode {
 }
 
 fn main() -> ExitCode {
-    let dir = env::args_os()
-        .nth(1)
-        .map(PathBuf::from)
-        .filter(|path| path.is_dir());
+    let mut args: Vec<_> = env::args_os().skip(1).collect();
+    let thumb_mode = if let Some(index) = args.iter().position(|arg| arg == "-nt") {
+        args.remove(index);
+        ThumbMode::None
+    } else {
+        ThumbMode::Exif
+    };
+
+    let dir = args.first().map(PathBuf::from).filter(|path| path.is_dir());
     if dir.is_none() {
-        eprintln!("Usage: exifgeo <directory>");
+        eprintln!("Usage: exifgeo [-nt] <directory>");
+        eprintln!("  -nt  No thumbnails");
         return ExitCode::FAILURE;
     }
 
     let thumbs_dir = "thumbs";
-    let thumb_mode = ThumbMode::Exif;
     if let Err(e) = thumb_mode.create_dir(thumbs_dir) {
         eprintln!("Could not create {} directory: {}", thumbs_dir, e);
         return ExitCode::FAILURE;