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
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GPG key ID: C910D9222512E3C7
116 changed files with 287 additions and 270 deletions

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@ -25,7 +25,7 @@ start :: String -> CommandStart
start gcryptid = next $ next $ do
u <- getUUID
when (u /= NoUUID) $
error "gcryptsetup refusing to run; this repository already has a git-annex uuid!"
giveup "gcryptsetup refusing to run; this repository already has a git-annex uuid!"
g <- gitRepo
gu <- Remote.GCrypt.getGCryptUUID True g
@ -35,5 +35,5 @@ start gcryptid = next $ next $ do
then do
void $ Remote.GCrypt.setupRepo gcryptid g
return True
else error "cannot use gcrypt in a non-bare repository"
else error "gcryptsetup uuid mismatch"
else giveup "cannot use gcrypt in a non-bare repository"
else giveup "gcryptsetup uuid mismatch"