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Add more context in error messages

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Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
This commit is contained in:
Matthias Beyer 2019-05-18 00:14:34 +02:00
parent e200e40070
commit 3321b9a643
1 changed files with 3 additions and 1 deletions
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4
lib/domain/libimaglog/src/log.rs
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@ -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(|_| ())
}