libimagnotification: Move from error-chain to failure

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

lib/etc/libimagnotification/Cargo.toml

@@ -20,8 +20,9 @@ is-it-maintained-open-issues      = { repository = "matthiasbeyer/imag" }
 maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
-notify-rust = "3.4.2"
+notify-rust    = "3.4.2"
-error-chain = "0.12"
+failure        = "0.1"
+failure_derive = "0.1"
 
 libimagerror       = { version = "0.9.0", path = "../../../lib/core/libimagerror" }
 

lib/etc/libimagnotification/src/error.rs

@@ -1,36 +0,0 @@
-//
-// imag - the personal information management suite for the commandline
-// Copyright (C) 2015-2018 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

@@ -34,11 +34,10 @@
 )]
 
 extern crate notify_rust;
-#[macro_use] extern crate error_chain;
+extern crate failure;
 
 extern crate libimagerror;
 
-pub mod error;
 pub mod notificator;
 pub mod result_notification;
 

lib/etc/libimagnotification/src/notificator.rs

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

lib/etc/libimagnotification/src/result_notification.rs

@@ -31,12 +31,11 @@ pub mod err {
     use notify_rust::Notification as RustNotification;
     use notify_rust::NotificationUrgency;
 
-    use error::ResultExt;
-    use error::NotificationErrorKind as NEK;
     use notificator::default::Urgency;
     use notificator::default::Notification;
     use notificator::Notificator;
-    use error::Result;
+    use failure::Fallible as Result;
+    use failure::err_msg;
 
     #[derive(Debug, Default, Clone)]
     pub struct ErrorNotification(Notification, usize);
@@ -64,7 +63,9 @@ pub mod err {
                 n.summary("[Error]");
                 n.urgency(urgency);
                 n.body(e.description());
-                try!(n.finalize().show().map(|_| ()).chain_err(|| NEK::Unknown));
+                let _ = n.finalize()
+                    .show()
+                    .map_err(|_| err_msg("Notification error"))?;
 
                 if u > 0 {
                     e.cause().map(|cause| trace_notify(urgency, cause, u - 1));
@@ -105,7 +106,8 @@ pub mod ok {
 
     use notificator::default::Notification;
     use notificator::Notificator;
-    use error::Result;
+    use failure::Fallible as Result;
+    use failure::err_msg;
 
     #[derive(Debug, Default, Clone)]
     pub struct OkNotification(Notification);
@@ -127,8 +129,10 @@ pub mod ok {
             n.summary("[Ok]");
             n.urgency(self.0.urgency.clone().into());
             n.body(&"< >".to_owned());
-            n.finalize().show().map(|_| ())?;
+            n.finalize()
-            Ok(())
+                .show()
+                .map(|_| ())
+                .map_err(|_| err_msg("Notification error"))
         }
 
     }