Refactor error handling

Refactor error handling so we do chain the error with the `?`
operator rather than wrapping it with own types.

Links to other error chains are created with error chain. All unneeded
error kinds were removed.

No API changes.

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/domain/libimagtimetrack/src/timetrackingstore.rs b/lib/domain/libimagtimetrack/src/timetrackingstore.rs
index 50c8412e..286c6d08 100644
--- a/lib/domain/libimagtimetrack/src/timetrackingstore.rs
+++ b/lib/domain/libimagtimetrack/src/timetrackingstore.rs
@@ -70,24 +70,24 @@ impl<'a> TimeTrackStore<'a> for Store {
         use std::path::PathBuf;
 
         COMPILER.compile(CRATE_NAME, start)
-            .chain_err(|| TTEK::StoreIdError)
+            .map_err(From::from)
             .map(|mut id| {
                 id.local_push(PathBuf::from(ts.as_str()));
                 id
             })
-            .and_then(|id| self.create(id).chain_err(|| TTEK::StoreWriteError))
+            .and_then(|id| self.create(id).map_err(From::from))
             .and_then(|mut fle| {
                 let v = Value::String(ts.as_str().to_owned());
                 fle.get_header_mut()
                     .insert(DATE_TIME_TAG_HEADER_PATH, v)
-                    .chain_err(|| TTEK::HeaderWriteError)
+                    .map_err(From::from)
                     .map(|_| fle)
             })
             .and_then(|mut fle| {
                 let v = Value::String(start.format(DATE_TIME_FORMAT).to_string());
                 fle.get_header_mut()
                     .insert(DATE_TIME_START_HEADER_PATH, v)
-                    .chain_err(|| TTEK::HeaderWriteError)
+                    .map_err(From::from)
                     .map(|_| fle)
             })
     }