git-annex/Command/Wanted.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

57 lines
1.5 KiB
Haskell

{- git-annex command
-
- Copyright 2013-2015 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Command.Wanted where
import Command
import qualified Remote
import Logs.PreferredContent
import Types.StandardGroups
import qualified Data.Map as M
cmd :: Command
cmd = cmd' "wanted" "get or set preferred content expression"
preferredContentMapRaw
preferredContentSet
cmd'
:: String
-> String
-> Annex (M.Map UUID PreferredContentExpression)
-> (UUID -> PreferredContentExpression -> Annex ())
-> Command
cmd' name desc getter setter = noMessages $
command name SectionSetup desc pdesc (withParams seek)
where
pdesc = paramPair paramRemote (paramOptional paramExpression)
seek = withWords (commandAction . start)
start (rname:[]) = go rname (performGet getter)
start (rname:expr:[]) = go rname $ \uuid -> do
allowMessages
showStart' name (Just rname)
performSet setter expr uuid
start _ = giveup "Specify a repository."
go rname a = do
u <- Remote.nameToUUID rname
next $ a u
performGet :: Ord a => Annex (M.Map a PreferredContentExpression) -> a -> CommandPerform
performGet getter a = do
m <- getter
liftIO $ putStrLn $ fromMaybe "" $ M.lookup a m
next $ return True
performSet :: (a -> PreferredContentExpression -> Annex ()) -> String -> a -> CommandPerform
performSet setter expr a = case checkPreferredContentExpression expr of
Just e -> giveup $ "Parse error: " ++ e
Nothing -> do
setter a expr
next $ return True