From 3321b9a643ebe1c926dbb7b44d393d714f2a2ebd Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sat, 18 May 2019 00:14:34 +0200
Subject: [PATCH] Add more context in error messages

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
---
 lib/domain/libimaglog/src/log.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/domain/libimaglog/src/log.rs b/lib/domain/libimaglog/src/log.rs
index 78901cda..5855e744 100644
--- a/lib/domain/libimaglog/src/log.rs
+++ b/lib/domain/libimaglog/src/log.rs
@@ -24,6 +24,7 @@ use libimagentryutil::isa::IsKindHeaderPathProvider;
 
 use failure::Fallible as Result;
 use failure::Error;
+use failure::ResultExt;
 
 
 use toml::Value;
@@ -38,12 +39,13 @@ provide_kindflag_path!(pub IsLog, "log.is_log");
 
 impl Log for Entry {
     fn is_log(&self) -> Result<bool> {
-        self.is::<IsLog>().map_err(From::from)
+        self.is::<IsLog>().context("Cannot check whether Entry is a Log").map_err(From::from)
     }
 
     fn make_log_entry(&mut self) -> Result<()> {
         self.get_header_mut()
             .insert("log.is_log", Value::Boolean(true))
+            .context("Cannot insert 'log.is_log' into header of entry")
             .map_err(Error::from)
             .map(|_| ())
     }