From 83d3e90248e9995e6c37c314b10597bccd394341 Mon Sep 17 00:00:00 2001
From: Daniel Mueller <deso@posteo.net>
Date: Sat, 4 Apr 2020 10:38:24 -0700
Subject: Remove dependency on crate::Error from arg_defs

This change removes the need to import crate::Error from the arg_defs
module. By dropping this dependency we make the file more independent of
the rest of the crate, which subsequently will allow us to merely
include! it in another file in order to get the argument related type
definitions without compilation errors due to missing symbols from the
rest of the crate.
---
 src/arg_defs.rs | 7 +++----
 src/error.rs    | 6 ++++++
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/arg_defs.rs b/src/arg_defs.rs
index 0172a81..c58d230 100644
--- a/src/arg_defs.rs
+++ b/src/arg_defs.rs
@@ -19,7 +19,6 @@
 
 use crate::args;
 use crate::commands;
-use crate::error::Error;
 
 /// Provides access to a Nitrokey device
 #[derive(structopt::StructOpt)]
@@ -136,13 +135,13 @@ pub enum ConfigOption<T> {
 }
 
 impl<T> ConfigOption<T> {
-  pub fn try_from(disable: bool, value: Option<T>, name: &'static str) -> Result<Self, Error> {
+  pub fn try_from(disable: bool, value: Option<T>, name: &'static str) -> Result<Self, String> {
     if disable {
       if value.is_some() {
-        Err(Error::Error(format!(
+        Err(format!(
           "--{name} and --no-{name} are mutually exclusive",
           name = name
-        )))
+        ))
       } else {
         Ok(ConfigOption::Disable)
       }
diff --git a/src/error.rs b/src/error.rs
index 3e458a6..e891da2 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -64,6 +64,12 @@ impl From<&str> for Error {
   }
 }
 
+impl From<String> for Error {
+  fn from(s: String) -> Error {
+    Error::Error(s)
+  }
+}
+
 impl From<clap::Error> for Error {
   fn from(e: clap::Error) -> Error {
     Error::ClapError(e)
-- 
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