git-annex/git-annex-shell.hs

72 lines
1.8 KiB
Haskell

{- git-annex-shell main program
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
import System.Environment
import Control.Monad (when)
import qualified GitRepo as Git
import CmdLine
import Command
import Utility
import Options
import qualified Command.ConfigList
import qualified Command.InAnnex
import qualified Command.DropKey
--import qualified Command.RecvKey
--import qualified Command.SendKey
cmds :: [Command]
cmds = map adddirparam $ concat
[ Command.ConfigList.command
, Command.InAnnex.command
, Command.DropKey.command
-- , Command.RecvKey.command
-- , Command.SendKey.command
]
where
adddirparam c = c { cmdparams = "DIRECTORY " ++ cmdparams c }
header :: String
header = "Usage: git-annex-shell [-c] command [option ..]"
main :: IO ()
main = do
args <- getArgs
main' args
main' :: [String] -> IO ()
main' [] = failure
-- skip leading -c options, passed by eg, ssh
main' ("-c":p) = main' p
-- Since git-annex explicitly runs git-annex-shell, we will be passed
-- a redundant "git-annex-shell" parameter when we're the user's login shell.
main' ("git-annex-shell":p) = main' p
-- a command can be either a builtin or something to pass to git-shell
main' c@(cmd:dir:params)
| elem cmd builtins = builtin cmd dir params
| otherwise = external c
main' c@(cmd:_)
| elem cmd builtins = failure
| otherwise = external c
builtins :: [String]
builtins = map cmdname cmds
builtin :: String -> String -> [String] -> IO ()
builtin cmd dir params = do
let gitrepo = Git.repoFromPath dir
dispatch gitrepo (cmd:params) cmds commonOptions header
external :: [String] -> IO ()
external l = do
ret <- boolSystem "git-shell" ("-c":l)
when (not ret) $
error "git-shell failed"
failure :: IO ()
failure = error $ "bad parameters\n\n" ++ usage header cmds commonOptions