40ecf58d4bThis 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.)
41 lines
1.2 KiB
Haskell
41 lines
1.2 KiB
Haskell
{- git-annex assistant remotes needing scanning
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-
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- Copyright 2012 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU AGPL version 3 or higher.
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-}
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module Assistant.ScanRemotes where
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import Assistant.Common
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import Assistant.Types.ScanRemotes
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import qualified Types.Remote as Remote
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import Data.Function
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import Control.Concurrent.STM
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import qualified Data.Map as M
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{- Blocks until there is a remote or remotes that need to be scanned.
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-
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- The list has higher priority remotes listed first. -}
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getScanRemote :: Assistant [(Remote, ScanInfo)]
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getScanRemote = do
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v <- getAssistant scanRemoteMap
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liftIO $ atomically $
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reverse . sortBy (compare `on` scanPriority . snd) . M.toList
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<$> takeTMVar v
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{- Adds new remotes that need scanning. -}
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addScanRemotes :: Bool -> [Remote] -> Assistant ()
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addScanRemotes _ [] = noop
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addScanRemotes full rs = do
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v <- getAssistant scanRemoteMap
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liftIO $ atomically $ do
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m <- fromMaybe M.empty <$> tryTakeTMVar v
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putTMVar v $ M.unionWith merge (M.fromList $ zip rs (map info rs)) m
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where
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info r = ScanInfo (-1 * Remote.cost r) full
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merge x y = ScanInfo
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{ scanPriority = max (scanPriority x) (scanPriority y)
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, fullScan = fullScan x || fullScan y
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}
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