reorg Remote/*
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9 changed files with 15 additions and 15 deletions
61
Remote/Helper/Ssh.hs
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61
Remote/Helper/Ssh.hs
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{- git-annex remote access with ssh
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-
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- Copyright 2011 Joey Hess <joey@kitenet.net>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Remote.Helper.Ssh where
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import Control.Monad.State (liftIO)
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import qualified Git
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import Utility
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import Types
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import Config
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{- Generates parameters to ssh to a repository's host and run a command.
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- Caller is responsible for doing any neccessary shellEscaping of the
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- passed command. -}
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sshToRepo :: Git.Repo -> [CommandParam] -> Annex [CommandParam]
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sshToRepo repo sshcmd = do
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s <- getConfig repo "ssh-options" ""
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let sshoptions = map Param (words s)
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let sshport = case Git.urlPort repo of
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Nothing -> []
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Just p -> [Param "-p", Param (show p)]
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let sshhost = Param $ Git.urlHostUser repo
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return $ sshoptions ++ sshport ++ [sshhost] ++ sshcmd
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{- Generates parameters to run a git-annex-shell command on a remote
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- repository. -}
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git_annex_shell :: Git.Repo -> String -> [CommandParam] -> Annex (Maybe (FilePath, [CommandParam]))
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git_annex_shell r command params
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| not $ Git.repoIsUrl r = return $ Just (shellcmd, shellopts)
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| Git.repoIsSsh r = do
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sshparams <- sshToRepo r [Param sshcmd]
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return $ Just ("ssh", sshparams)
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| otherwise = return Nothing
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where
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dir = Git.workTree r
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shellcmd = "git-annex-shell"
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shellopts = Param command : File dir : params
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sshcmd = shellcmd ++ " " ++
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unwords (map shellEscape $ toCommand shellopts)
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{- Uses a supplied function (such as boolSystem) to run a git-annex-shell
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- command on a remote.
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-
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- Or, if the remote does not support running remote commands, returns
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- a specified error value. -}
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onRemote
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:: Git.Repo
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-> (FilePath -> [CommandParam] -> IO a, a)
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-> String
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-> [CommandParam]
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-> Annex a
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onRemote r (with, errorval) command params = do
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s <- git_annex_shell r command params
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case s of
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Just (c, ps) -> liftIO $ with c ps
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Nothing -> return errorval
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