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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116 changed files with 287 additions and 270 deletions

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@ -196,7 +196,7 @@ postEnableSshGCryptR u = whenGcryptInstalled $
enablegcrypt sshdata _ = prepSsh False sshdata $ \sshdata' ->
sshConfigurator $
checkExistingGCrypt sshdata' $
error "Expected to find an encrypted git repository, but did not."
giveup "Expected to find an encrypted git repository, but did not."
getsshinput = parseSshUrl <=< M.lookup "gitrepo"
getEnableSshGitRemoteR :: UUID -> Handler Html
@ -475,7 +475,7 @@ checkExistingGCrypt sshdata nope = checkGCryptRepoEncryption repourl nope nope $
case mu of
Just u -> void $ liftH $
combineExistingGCrypt sshdata u
Nothing -> error "The location contains a gcrypt repository that is not a git-annex special remote. This is not supported."
Nothing -> giveup "The location contains a gcrypt repository that is not a git-annex special remote. This is not supported."
where
repourl = genSshUrl sshdata
@ -641,7 +641,7 @@ enableRsyncNetGCrypt sshinput reponame =
checkGCryptRepoEncryption (genSshUrl sshdata) notencrypted notinstalled $
enableGCrypt sshdata reponame
where
notencrypted = error "Unexpectedly found a non-encrypted git repository, instead of the expected encrypted git repository."
notencrypted = giveup "Unexpectedly found a non-encrypted git repository, instead of the expected encrypted git repository."
notinstalled = error "internal"
{- Prepares rsync.net ssh key and creates the directory that will be