git-annex/Logs/NumCopies.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

41 lines
1 KiB
Haskell

{- git-annex numcopies log
-
- Copyright 2014 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
module Logs.NumCopies (
setGlobalNumCopies,
getGlobalNumCopies,
globalNumCopiesLoad,
) where
import Annex.Common
import qualified Annex
import Types.NumCopies
import Logs
import Logs.SingleValue
instance SingleValueSerializable NumCopies where
serialize (NumCopies n) = encodeBS (show n)
deserialize = NumCopies <$$> readish . decodeBS
setGlobalNumCopies :: NumCopies -> Annex ()
setGlobalNumCopies new = do
curr <- getGlobalNumCopies
when (curr /= Just new) $
setLog numcopiesLog new
{- Value configured in the numcopies log. Cached for speed. -}
getGlobalNumCopies :: Annex (Maybe NumCopies)
getGlobalNumCopies = maybe globalNumCopiesLoad (return . Just)
=<< Annex.getState Annex.globalnumcopies
globalNumCopiesLoad :: Annex (Maybe NumCopies)
globalNumCopiesLoad = do
v <- getLog numcopiesLog
Annex.changeState $ \s -> s { Annex.globalnumcopies = v }
return v