git-annex/Command/Forget.hs
Joey Hess 40ecf58d4b
update licenses from GPL to AGPL
This does not change the overall license of the git-annex program, which
was already AGPL due to a number of sources files being AGPL already.

Legally speaking, I'm adding a new license under which these files are
now available; I already released their current contents under the GPL
license. Now they're dual licensed GPL and AGPL. However, I intend
for all my future changes to these files to only be released under the
AGPL license, and I won't be tracking the dual licensing status, so I'm
simply changing the license statement to say it's AGPL.

(In some cases, others wrote parts of the code of a file and released it
under the GPL; but in all cases I have contributed a significant portion
of the code in each file and it's that code that is getting the AGPL
license; the GPL license of other contributors allows combining with
AGPL code.)
2019-03-13 15:48:14 -04:00

54 lines
1.4 KiB
Haskell

{- git-annex command
-
- Copyright 2013 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Command.Forget where
import Command
import qualified Annex.Branch as Branch
import Logs.Transitions
import qualified Annex
import Annex.VectorClock
cmd :: Command
cmd = command "forget" SectionMaintenance
"prune git-annex branch history"
paramNothing (seek <$$> optParser)
data ForgetOptions = ForgetOptions
{ dropDead :: Bool
}
optParser :: CmdParamsDesc -> Parser ForgetOptions
optParser _ = ForgetOptions
<$> switch
( long "drop-dead"
<> help "drop references to dead repositories"
)
seek :: ForgetOptions -> CommandSeek
seek = commandAction . start
start :: ForgetOptions -> CommandStart
start o = do
showStart' "forget" (Just "git-annex")
c <- liftIO currentVectorClock
let basets = addTransition c ForgetGitHistory noTransitions
let ts = if dropDead o
then addTransition c ForgetDeadRemotes basets
else basets
next $ perform ts =<< Annex.getState Annex.force
perform :: Transitions -> Bool -> CommandPerform
perform ts True = do
recordTransitions Branch.change ts
-- get branch committed before contining with the transition
Branch.update
void $ Branch.performTransitions ts True []
next $ return True
perform _ False = do
showLongNote "To forget git-annex branch history, you must specify --force. This deletes metadata!"
stop