Implement argument handling according to spec

1 files changed, 48 insertions, 1 deletions

diff --git a/src/main.rs b/src/main.rs
index e257956..04140ed 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,50 @@
+#![warn(missing_docs, rust_2018_compatibility, rust_2018_idioms, unused)]
+
+//! Reads OTP configuration from a QR code and writes it to an OTP slot on a Nitrokey device.
+
+use std::process;
+
+#[derive(Debug)]
+struct Options {
+    slot: u8,
+    file: Option<String>,
+    name: Option<String>,
+}
+
+fn parse_options() -> Result<Options, i32> {
+    let mut options = Options {
+        slot: 0,
+        file: None,
+        name: None,
+    };
+    let mut parser = argparse::ArgumentParser::new();
+    parser.set_description(
+        "Reads OTP configuration from a QR code and writes it to an OTP slot on a Nitrokey device.",
+    );
+    parser.refer(&mut options.slot).required().add_argument(
+        "slot",
+        argparse::Store,
+        "The slot to write the OTP data to",
+    );
+    parser.refer(&mut options.file).add_argument(
+        "file",
+        argparse::StoreOption,
+        "The file to read the QR code from",
+    );
+    parser.refer(&mut options.name).add_option(
+        &["-n", "--name"],
+        argparse::StoreOption,
+        "The name to store in the OTP slot",
+    );
+    parser.parse_args()?;
+    drop(parser);
+    Ok(options)
+}
+
 fn main() {
-    println!("nitrocli-otp-qr");
+    let status = match parse_options() {
+        Ok(_) => 0,
+        Err(err) => err,
+    };
+    process::exit(status);
 }