Add IsInCollection helper type

lib/entry/libimagentryutil/Cargo.toml

@@ -23,6 +23,7 @@ maintenance                       = { status     = "actively-developed" }
 toml = "0.4"
 toml-query = "0.6"
 error-chain = "0.11"
+filters = "0.2"
 
 libimagstore = { version = "0.6.0", path = "../../../lib/core/libimagstore" }
 libimagerror = { version = "0.6.0", path = "../../../lib/core/libimagerror" }

lib/entry/libimagentryutil/src/isincollection.rs

@@ -0,0 +1,39 @@
+//
+// 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
+//
+
+use filters::filter::Filter;
+
+use libimagstore::storeid::StoreId;
+
+pub struct IsInCollection<A: AsRef<str>>(Vec<A>);
+
+impl<A: AsRef<str>> IsInCollection<A> {
+    pub fn new(v: Vec<A>) -> Self {
+        IsInCollection(v)
+    }
+}
+
+impl<A: AsRef<str>> Filter<StoreId> for IsInCollection<A> {
+
+    fn filter(&self, sid: &StoreId) -> bool {
+        sid.is_in_collection(&self.0)
+    }
+
+}
+

lib/entry/libimagentryutil/src/lib.rs

@@ -35,6 +35,7 @@
     while_true,
 )]
 
+extern crate filters;
 extern crate toml;
 extern crate toml_query;
 #[macro_use] extern crate error_chain;
@@ -44,4 +45,5 @@ extern crate libimagerror;
 
 pub mod error;
 pub mod isa;
+pub mod isincollection;