git-annex/Command/Direct.hs
Joey Hess 0a4479b8ec
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.
2016-11-15 21:29:54 -04:00

70 lines
1.5 KiB
Haskell

{- git-annex command
-
- Copyright 2012 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Direct where
import Command
import qualified Git
import qualified Git.LsFiles
import qualified Git.Branch
import Config
import Annex.Direct
import Annex.Version
cmd :: Command
cmd = notBareRepo $ noDaemonRunning $
command "direct" SectionSetup "switch repository to direct mode"
paramNothing (withParams seek)
seek :: CmdParams -> CommandSeek
seek = withNothing start
start :: CommandStart
start = ifM versionSupportsDirectMode
( ifM isDirect ( stop , next perform )
, giveup "Direct mode is not suppported by this repository version. Use git-annex unlock instead."
)
perform :: CommandPerform
perform = do
showStart "commit" ""
showOutput
_ <- inRepo $ Git.Branch.commitCommand Git.Branch.ManualCommit
[ Param "-a"
, Param "-m"
, Param "commit before switching to direct mode"
]
showEndOk
top <- fromRepo Git.repoPath
(l, clean) <- inRepo $ Git.LsFiles.inRepo [top]
forM_ l go
void $ liftIO clean
next cleanup
where
go = whenAnnexed $ \f k -> do
r <- toDirectGen k f
case r of
Nothing -> noop
Just a -> do
showStart "direct" f
r' <- tryNonAsync a
case r' of
Left e -> warnlocked e
Right _ -> showEndOk
return Nothing
warnlocked :: SomeException -> Annex ()
warnlocked e = do
warning $ show e
warning "leaving this file as-is; correct this problem and run git annex fsck on it"
cleanup :: CommandCleanup
cleanup = do
showStart "direct" ""
setDirect True
return True