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 KiB
Haskell
41 lines
1 KiB
Haskell
{- git-annex-shell command
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-
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- Copyright 2015 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 Command.LockContent where
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import Command
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import Annex.Content
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import Remote.Helper.Ssh (contentLockedMarker)
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import Utility.SimpleProtocol
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cmd :: Command
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cmd = noCommit $
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command "lockcontent" SectionPlumbing
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"locks key's content in the annex, preventing it being dropped"
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paramKey
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(withParams seek)
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seek :: CmdParams -> CommandSeek
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seek = withWords (commandAction . start)
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-- First, lock the content, then print out "OK".
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-- Wait for the caller to send a line before dropping the lock.
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start :: [String] -> CommandStart
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start [ks] = do
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ok <- lockContentShared k (const locksuccess)
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`catchNonAsync` (const $ return False)
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liftIO $ if ok
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then exitSuccess
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else exitFailure
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where
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k = fromMaybe (giveup "bad key") (deserializeKey ks)
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locksuccess = liftIO $ do
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putStrLn contentLockedMarker
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hFlush stdout
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_ <- getProtocolLine stdin
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return True
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start _ = giveup "Specify exactly 1 key."
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