git-annex/git-annex-shell.hs
Joey Hess e784757376 hlint tweaks
Did all sources except Remotes/* and Command/*
2011-07-15 03:12:05 -04:00

76 lines
2 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 Data.List
import qualified 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 [parameters ...] [option ..]"
main :: IO ()
main = main' =<< getArgs
main' :: [String] -> IO ()
main' [] = failure
-- skip leading -c options, passed by eg, ssh
main' ("-c":p) = main' p
-- a command can be either a builtin or something to pass to git-shell
main' c@(cmd:dir:params)
| cmd `elem` builtins = builtin cmd dir params
| otherwise = external c
main' c@(cmd:_)
-- Handle the case of being the user's login shell. It will be passed
-- a single string containing all the real parameters.
| "git-annex-shell " `isPrefixOf` cmd = main' $ drop 1 $ shellUnEscape cmd
| cmd `elem` builtins = failure
| otherwise = external c
builtins :: [String]
builtins = map cmdname cmds
builtin :: String -> String -> [String] -> IO ()
builtin cmd dir params =
Git.repoAbsPath dir >>= Git.repoFromAbsPath >>=
dispatch (cmd : filterparams params) cmds commonOptions header
external :: [String] -> IO ()
external params =
unlessM (boolSystem "git-shell" $ map Param $ "-c":filterparams params) $
error "git-shell failed"
-- Drop all args after "--".
-- These tend to be passed by rsync and not useful.
filterparams :: [String] -> [String]
filterparams [] = []
filterparams ("--":_) = []
filterparams (a:as) = a:filterparams as
failure :: IO ()
failure = error $ "bad parameters\n\n" ++ usage header cmds commonOptions