From d64d379e97a600c08b1e145f6f986aaf95ddcc8f Mon Sep 17 00:00:00 2001
From: Robin Krahl <robin.krahl@ireas.org>
Date: Thu, 10 Jan 2019 23:15:41 +0000
Subject: Refactor get_device to use nitrokey::connect_model

nitrokey 0.3.1 introduced the connect_model function that connects to a
specific model given by an enum variant and returns a DeviceWrapper.
This new function allows us to remove the manual selection of a
connection method from the get_device function.  We only have to
implement From<DeviceModel> for nitrokey::Model to be able to convert
our model enum to nitrokey's model enum.
---
 nitrocli/Cargo.toml      | 2 +-
 nitrocli/src/args.rs     | 9 +++++++++
 nitrocli/src/commands.rs | 7 +------
 3 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/nitrocli/Cargo.toml b/nitrocli/Cargo.toml
index 0c567c7..ae27e63 100644
--- a/nitrocli/Cargo.toml
+++ b/nitrocli/Cargo.toml
@@ -54,7 +54,7 @@ version = "0.2"
 path = "../libc"
 
 [dependencies.nitrokey]
-version = "0.3"
+version = "0.3.1"
 path = "../nitrokey"
 
 [dev-dependencies.nitrokey-test]
diff --git a/nitrocli/src/args.rs b/nitrocli/src/args.rs
index 6f02832..246490e 100644
--- a/nitrocli/src/args.rs
+++ b/nitrocli/src/args.rs
@@ -64,6 +64,15 @@ Enum! {DeviceModel, [
   Storage => "storage"
 ]}
 
+impl From<DeviceModel> for nitrokey::Model {
+  fn from(model: DeviceModel) -> nitrokey::Model {
+    match model {
+      DeviceModel::Pro => nitrokey::Model::Pro,
+      DeviceModel::Storage => nitrokey::Model::Storage,
+    }
+  }
+}
+
 /// A top-level command for nitrocli.
 Enum! {Command, [
   Config => "config",
diff --git a/nitrocli/src/commands.rs b/nitrocli/src/commands.rs
index ed3c2c4..b37f9c5 100644
--- a/nitrocli/src/commands.rs
+++ b/nitrocli/src/commands.rs
@@ -59,12 +59,7 @@ fn get_device(ctx: &mut args::ExecCtx<'_>) -> Result<nitrokey::DeviceWrapper> {
   set_log_level(ctx);
 
   match ctx.model {
-    Some(model) => match model {
-      args::DeviceModel::Pro => nitrokey::Pro::connect().map(nitrokey::DeviceWrapper::Pro),
-      args::DeviceModel::Storage => {
-        nitrokey::Storage::connect().map(nitrokey::DeviceWrapper::Storage)
-      }
-    },
+    Some(model) => nitrokey::connect_model(model.into()),
     None => nitrokey::connect(),
   }
   .map_err(|_| Error::Error("Nitrokey device not found".to_string()))
-- 
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