diff options
Diffstat (limited to 'Ssh.hs')
| -rw-r--r-- | Ssh.hs | 35 |
1 files changed, 35 insertions, 0 deletions
@@ -7,6 +7,8 @@ module Ssh where +import Control.Monad.State (liftIO) + import qualified GitRepo as Git import Utility import Types @@ -24,3 +26,36 @@ sshToRepo repo sshcmd = do Just p -> [Param "-p", Param (show p)] let sshhost = Param $ Git.urlHostUser repo return $ sshoptions ++ sshport ++ [sshhost] ++ sshcmd + +{- Generates parameters to run a git-annex-shell command on a remote + - repository. -} +git_annex_shell :: Git.Repo -> String -> [CommandParam] -> Annex (Maybe (FilePath, [CommandParam])) +git_annex_shell r command params + | not $ Git.repoIsUrl r = return $ Just (shellcmd, shellopts) + | Git.repoIsSsh r = do + sshparams <- sshToRepo r [Param sshcmd] + return $ Just ("ssh", sshparams) + | otherwise = return Nothing + where + dir = Git.workTree r + shellcmd = "git-annex-shell" + shellopts = (Param command):(File dir):params + sshcmd = shellcmd ++ " " ++ + unwords (map shellEscape $ toCommand shellopts) + +{- Uses a supplied function (such as boolSystem) to run a git-annex-shell + - command on a remote. + - + - Or, if the remote does not support running remote commands, returns + - a specified error value. -} +onRemote + :: Git.Repo + -> (FilePath -> [CommandParam] -> IO a, a) + -> String + -> [CommandParam] + -> Annex a +onRemote r (with, errorval) command params = do + s <- git_annex_shell r command params + case s of + Just (c, ps) -> liftIO $ with c ps + Nothing -> return errorval |