libimagbookmark: Move from error-chain to failure

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

lib/domain/libimagbookmark/Cargo.toml

@@ -22,7 +22,7 @@ maintenance                       = { status     = "actively-developed" }
 [dependencies]
 url = "1.5"
 regex = "1"
-error-chain = "0.12"
+failure = "0.1"
 
 libimagstore     = { version = "0.9.0", path = "../../../lib/core/libimagstore" }
 libimagerror     = { version = "0.9.0", path = "../../../lib/core/libimagerror" }

lib/domain/libimagbookmark/src/collection.rs

@@ -26,7 +26,8 @@
 
 use regex::Regex;
 
-use error::Result;
+use failure::Fallible as Result;
+use failure::Error;
 use module_path::ModuleEntryPath;
 
 use libimagstore::store::Store;
@@ -53,22 +54,22 @@ impl<'a> BookmarkCollectionStore<'a> for Store {
     fn new(&'a self, name: &str) -> Result<FileLockEntry<'a>> {
         ModuleEntryPath::new(name)
             .into_storeid()
-            .and_then(|id| self.create(id).map_err(From::from))
-            .map_err(From::from)
+            .and_then(|id| self.create(id).map_err(Error::from))
+            .map_err(Error::from)
     }
 
     fn get(&'a self, name: &str) -> Result<Option<FileLockEntry<'a>>> {
         ModuleEntryPath::new(name)
             .into_storeid()
-            .and_then(|id| self.get(id).map_err(From::from))
-            .map_err(From::from)
+            .and_then(|id| self.get(id).map_err(Error::from))
+            .map_err(Error::from)
     }
 
     fn delete(&'a self, name: &str) -> Result<()> {
         ModuleEntryPath::new(name)
             .into_storeid()
-            .and_then(|id| self.delete(id).map_err(From::from))
-            .map_err(From::from)
+            .and_then(|id| self.delete(id).map_err(Error::from))
+            .map_err(Error::from)
     }
 
 }
@@ -84,47 +85,35 @@ pub trait BookmarkCollection : Sized + InternalLinker + ExternalLinker {
 impl BookmarkCollection for Entry {
 
     fn links<'a>(&self, store: &'a Store) -> Result<UrlIter<'a>> {
-        self.get_external_links(store).map_err(From::from)
+        self.get_external_links(store)
     }
 
     fn link_entries(&self) -> Result<Vec<StoreLink>> {
         use libimagentrylink::external::is_external_link_storeid;
-
-        self.get_internal_links()
-            .map(|v| v.filter(|id| is_external_link_storeid(id)).collect())
-            .map_err(From::from)
+        self.get_internal_links().map(|v| v.filter(|id| is_external_link_storeid(id)).collect())
     }
 
     fn add_link(&mut self, store: &Store, l: Link) -> Result<()> {
         use link::IntoUrl;
-
-        l.into_url()
-            .and_then(|url| self.add_external_link(store, url).map_err(From::from))
-            .map_err(From::from)
+        l.into_url().and_then(|url| self.add_external_link(store, url))
     }
 
     fn get_links_matching<'a>(&self, store: &'a Store, r: Regex) -> Result<LinksMatchingRegexIter<'a>> {
         use self::iter::IntoLinksMatchingRegexIter;
-
-        self.get_external_links(store)
-            .map(|iter| iter.matching_regex(r))
-            .map_err(From::from)
+        self.get_external_links(store).map(|iter| iter.matching_regex(r))
     }
 
     fn remove_link(&mut self, store: &Store, l: Link) -> Result<()> {
         use link::IntoUrl;
-
-        l.into_url()
-            .and_then(|url| self.remove_external_link(store, url).map_err(From::from))
-            .map_err(From::from)
+        l.into_url().and_then(|url| self.remove_external_link(store, url))
     }
 
 }
 
 pub mod iter {
     use link::Link;
-    use error::Result;
-    use error::BookmarkError as BE;
+    use failure::Fallible as Result;
+    use failure::Error;
 
     pub struct LinkIter<I>(I)
         where I: Iterator<Item = Link>;
@@ -167,7 +156,7 @@ pub mod iter {
             loop {
                 let n = match self.0.next() {
                     Some(Ok(n))  => n,
-                    Some(Err(e)) => return Some(Err(BE::from(e))),
+                    Some(Err(e)) => return Some(Err(Error::from(e))),
                     None         => return None,
                 };
 

lib/domain/libimagbookmark/src/error.rs

@@ -1,48 +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 {
-        BookmarkError, BookmarkErrorKind, ResultExt, Result;
-    }
-
-    links {
-        StoreError(::libimagstore::error::StoreError, ::libimagstore::error::StoreErrorKind);
-        LinkError(::libimagentrylink::error::LinkError, ::libimagentrylink::error::LinkErrorKind);
-    }
-
-    errors {
-        LinkParsingError   {
-            description("Link parsing error")
-            display("Link parsing error")
-        }
-
-        LinkingError       {
-            description("Error while linking")
-            display("Error while linking")
-        }
-
-        CollectionNotFound {
-            description("Link-Collection not found")
-            display("Link-Collection not found")
-        }
-
-    }
-}
-

lib/domain/libimagbookmark/src/lib.rs

@@ -37,7 +37,7 @@
 
 extern crate url;
 extern crate regex;
-#[macro_use] extern crate error_chain;
+extern crate failure;
 
 #[macro_use] extern crate libimagstore;
 extern crate libimagerror;
@@ -46,5 +46,4 @@ extern crate libimagentrylink;
 module_entry_path_mod!("bookmark");
 
 pub mod collection;
-pub mod error;
 pub mod link;

lib/domain/libimagbookmark/src/link.rs

@@ -19,7 +19,10 @@
 
 use std::ops::{Deref, DerefMut};
 
-use error::Result;
+use failure::Fallible as Result;
+use failure::ResultExt;
+use failure::Error;
+use failure::err_msg;
 
 use url::Url;
 
@@ -66,10 +69,7 @@ pub trait IntoUrl {
 impl IntoUrl for Link {
 
     fn into_url(self) -> Result<Url> {
-        use error::BookmarkErrorKind as BEK;
-        use error::ResultExt;
-
-        Url::parse(&self[..]).chain_err(|| BEK::LinkParsingError)
+        Url::parse(&self[..]).context(err_msg("Link parsing error")).map_err(Error::from)
     }
 
 }