libimagentryview: Move from error-chain to failure

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

lib/entry/libimagentryview/Cargo.toml

@@ -22,7 +22,7 @@ maintenance                       = { status     = "actively-developed" }
 [dependencies]
 log = "0.4.0"
 toml = "0.4"
-error-chain = "0.12"
+failure  = "0.1"
 textwrap = "0.10"
 
 libimagrt        = { version = "0.9.0", path = "../../../lib/core/libimagrt" }
@@ -31,7 +31,6 @@ libimagerror     = { version = "0.9.0", path = "../../../lib/core/libimagerror"
 libimagentryedit = { version = "0.9.0", path = "../../../lib/entry/libimagentryedit" }
 
 mdcat   = { version = "0.8", optional = true }
-failure = { version = "0.1", optional = true }
 
 [dependencies.pulldown-cmark]
 version          = "^0.1"
@@ -47,5 +46,5 @@ features         = ["parsing", "assets", "dump-load"]
 
 [features]
 default        = [ "markdownviewer" ]
-markdownviewer = ["mdcat", "failure", "pulldown-cmark", "syntect"]
+markdownviewer = ["mdcat", "pulldown-cmark", "syntect"]
 

lib/entry/libimagentryview/src/builtin/editor.rs

@@ -24,9 +24,10 @@ use libimagrt::runtime::Runtime;
 use libimagentryedit::edit::edit_in_tmpfile;
 
 use viewer::Viewer;
-use error::Result;
-use error::ResultExt;
-use error::ViewErrorKind as VEK;
+use failure::Fallible as Result;
+use failure::ResultExt;
+use failure::Error;
+use failure::err_msg;
 
 pub struct EditorView<'a>(&'a Runtime<'a>);
 
@@ -41,7 +42,9 @@ impl<'a> Viewer for EditorView<'a> {
         where W: Write
     {
         let mut entry = e.to_str()?.clone().to_string();
-        edit_in_tmpfile(self.0, &mut entry).chain_err(|| VEK::ViewError)
+        edit_in_tmpfile(self.0, &mut entry)
+            .context(err_msg("Error while viewing"))
+            .map_err(Error::from)
     }
 }
 

lib/entry/libimagentryview/src/builtin/md.rs

@@ -28,7 +28,8 @@ use syntect::parsing::SyntaxSet;
 use mdcat;
 
 use viewer::Viewer;
-use error::Result;
+use failure::Fallible as Result;
+use failure::Error;
 
 pub struct MarkdownViewer<'a> {
     rt:                 &'a Runtime<'a>,
@@ -66,8 +67,7 @@ impl<'a> Viewer for MarkdownViewer<'a> {
                         base_dir,
                         self.resource_access.clone(),
                         syntax_set)
-        .map_err(|e| e.compat())
-        .map_err(::error::ViewError::from)
+        .map_err(Error::from)
     }
 }
 

lib/entry/libimagentryview/src/builtin/plain.rs

@@ -22,7 +22,7 @@ use std::io::Write;
 use libimagstore::store::Entry;
 
 use viewer::Viewer;
-use error::Result;
+use failure::Fallible as Result;
 
 pub struct PlainViewer {
     show_header: bool

lib/entry/libimagentryview/src/builtin/stdout.rs

@@ -24,7 +24,7 @@ use libimagstore::store::Entry;
 use toml::ser::to_string;
 
 use viewer::Viewer;
-use error::Result;
+use failure::Fallible as Result;
 
 pub struct StdoutViewer {
     view_header: bool,

lib/entry/libimagentryview/src/error.rs

@@ -1,62 +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 {
-        ViewError, ViewErrorKind, ResultExt, Result;
-    }
-
-    foreign_links {
-        Failure(::failure::Compat<::failure::Error>) #[cfg(feature = "markdownviewer")];
-        IO(::std::io::Error);
-    }
-
-    links {
-        StoreError(::libimagstore::error::StoreError, ::libimagstore::error::StoreErrorKind);
-    }
-
-    errors {
-        Unknown              {
-            description("Unknown view error")
-            display("Unknown view error")
-        }
-
-        GlobError            {
-            description("Error while glob()ing")
-            display("Error while glob()ing")
-        }
-
-        PatternError         {
-            description("Error in glob() pattern")
-            display("Error in glob() pattern")
-        }
-
-        PatternBuildingError {
-            description("Could not build glob() pattern")
-            display("Could not build glob() pattern")
-        }
-
-        ViewError            {
-            description("Failed to start viewer")
-            display("Failed to start viewer")
-        }
-
-    }
-}
-

lib/entry/libimagentryview/src/lib.rs

@@ -36,15 +36,12 @@
 )]
 
 extern crate toml;
-#[macro_use] extern crate error_chain;
 extern crate textwrap;
+extern crate failure;
 
 #[cfg(feature = "markdownviewer")]
 extern crate mdcat;
 
-#[cfg(feature = "markdownviewer")]
-extern crate failure;
-
 #[cfg(feature = "markdownviewer")]
 extern crate pulldown_cmark;
 
@@ -56,7 +53,6 @@ extern crate libimagrt;
 extern crate libimagerror;
 extern crate libimagentryedit;
 
-pub mod error;
 pub mod builtin;
 pub mod viewer;
 

lib/entry/libimagentryview/src/viewer.rs

@@ -22,7 +22,7 @@ use std::ops::Deref;
 
 use libimagstore::store::Entry;
 
-use error::Result;
+use failure::Fallible as Result;
 
 pub trait Viewer {
 
@@ -35,9 +35,7 @@ pub trait Viewer {
               W: Write
     {
         for entry in entries {
-            if let Err(e) = self.view_entry(entry.deref(), sink) {
-                return Err(e);
-            }
+            let _ = self.view_entry(entry.deref(), sink)?;
         }
         Ok(())
     }