Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors.

ghc 8 added backtraces on uncaught errors. This is great, but git-annex was
using error in many places for a error message targeted at the user, in
some known problem case. A backtrace only confuses such a message, so omit it.

Notably, commands like git annex drop that failed due to eg, numcopies,
used to use error, so had a backtrace.

This commit was sponsored by Ethan Aubin.
This commit is contained in:
Joey Hess 2016-11-15 21:29:54 -04:00
parent 69915c6c9b
commit 0a4479b8ec
No known key found for this signature in database
GPG key ID: C910D9222512E3C7
116 changed files with 287 additions and 270 deletions

View file

@ -26,7 +26,7 @@ seek = withNothing start
start :: CommandStart
start = ifM versionSupportsDirectMode
( ifM isDirect ( stop , next perform )
, error "Direct mode is not suppported by this repository version. Use git-annex unlock instead."
, giveup "Direct mode is not suppported by this repository version. Use git-annex unlock instead."
)
perform :: CommandPerform