Transform to use error-chain

lib/etc/libimagnotification/Cargo.toml

@@ -15,6 +15,7 @@ homepage      = "http://imag-pim.org"
 
 [dependencies]
 notify-rust = "3.4.2"
+error-chain = "0.11"
 
 libimagerror       = { version = "0.5.0", path = "../../../lib/core/libimagerror" }
 

lib/etc/libimagnotification/src/error.rs

@@ -0,0 +1,36 @@
+//
+// imag - the personal information management suite for the commandline
+// Copyright (C) 2015, 2016 Matthias Beyer <mail@beyermatthias.de> and contributors
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; version
+// 2.1 of the License.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+//
+
+error_chain! {
+    types {
+        NotificationError, NotificationErrorKind, ResultExt, Result;
+    }
+
+    foreign_links {
+        NotifyError(::notify_rust::error::Error);
+    }
+
+    errors {
+        Unknown {
+            description("Unknown Error")
+            display("Unknown Error")
+        }
+    }
+}
+

lib/etc/libimagnotification/src/lib.rs

@@ -18,11 +18,11 @@
 //
 
 extern crate notify_rust;
+#[macro_use] extern crate error_chain;
 
 #[macro_use] extern crate libimagerror;
 
 pub mod error;
 pub mod notificator;
-pub mod result;
 pub mod result_notification;
 

lib/etc/libimagnotification/src/notificator.rs

@@ -17,7 +17,8 @@
 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 //
 
-use result::Result;
+use error::Result;
+use error::ResultExt;
 
 /// A Notificator provides a function that can be called to notify about a certain object.
 ///
@@ -34,7 +35,7 @@ pub mod default {
     use std::fmt::Debug;
     use std::fmt::Display;
 
-    use result::Result;
+    use error::Result;
 
     use notify_rust::Notification as RustNotification;
     use notify_rust::NotificationUrgency;

lib/etc/libimagnotification/src/result_notification.rs

@@ -31,12 +31,12 @@ pub mod err {
     use notify_rust::Notification as RustNotification;
     use notify_rust::NotificationUrgency;
 
+    use error::ResultExt;
     use error::NotificationErrorKind as NEK;
-    use error::MapErrInto;
     use notificator::default::Urgency;
     use notificator::default::Notification;
     use notificator::Notificator;
-    use result::Result;
+    use error::Result;
 
     #[derive(Debug, Default, Clone)]
     pub struct ErrorNotification(Notification, usize);
@@ -64,7 +64,7 @@ pub mod err {
                 n.summary("[Error]");
                 n.urgency(urgency.clone());
                 n.body(e.description());
-                try!(n.finalize().show().map(|_| ()).map_err_into(NEK::NotificationError));
+                try!(n.finalize().show().map(|_| ()).chain_err(|| NEK::Unknown));
 
                 if u > 0 {
                     e.cause().map(|cause| trace_notify(urgency, cause, u - 1));
@@ -103,11 +103,11 @@ pub mod ok {
 
     use notify_rust::Notification as RustNotification;
 
-    use error::MapErrInto;
-    use error::NotificationErrorKind as NEK;
     use notificator::default::Notification;
     use notificator::Notificator;
-    use result::Result;
+    use error::NotificationErrorKind as NEK;
+    use error::Result;
+    use error::ResultExt;
 
     #[derive(Debug, Default, Clone)]
     pub struct OkNotification(Notification);
@@ -129,7 +129,8 @@ pub mod ok {
             n.summary("[Ok]");
             n.urgency(self.0.urgency.clone().into());
             n.body(&"< >".to_owned());
-            n.finalize().show().map(|_| ()).map_err_into(NEK::NotificationError)
+            n.finalize().show().map(|_| ())?;
+            Ok(())
         }
 
     }