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{- Assistant installation
-
- Copyright 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Assistant.Install where
import Assistant.Common
import Assistant.Install.AutoStart
import Assistant.Ssh
import Locations.UserConfig
import Utility.FileMode
import Utility.OSX
import System.Posix.Env
standaloneOSXAppBase :: IO (Maybe FilePath)
standaloneOSXAppBase = getEnv "GIT_ANNEX_OSX_APP_BASE"
{- The OSX git-annex.app does not have an installation process.
- So when it's run, it needs to set up autostarting of the assistant
- daemon, as well as writing the programFile, and putting a
- git-annex-shell wrapper into ~/.ssh
-
- Note that this is done every time it's started, so if the user moves
- it around, the paths this sets up won't break.
-}
ensureInstalled :: IO ()
ensureInstalled = go =<< standaloneOSXAppBase
where
go Nothing = noop
go (Just base) = do
let program = base ++ "/bin/git-annex"
programfile <- programFile
createDirectoryIfMissing True (parentDir programfile)
writeFile programfile program
autostartfile <- userAutoStart autoStartLabel
installAutoStart program autostartfile
{- This shim is only updated if it doesn't
- already exist with the right content. This
- ensures that there's no race where it would have
- worked, but is unavailable due to being updated. -}
sshdir <- sshDir
let shim = sshdir </> "git-annex-shell"
let content = unlines
[ "#!/bin/sh"
, "set -e"
, "exec", base </> "runshell" ++
" git-annex-shell -c \"$SSH_ORIGINAL_COMMAND\""
]
curr <- catchDefaultIO "" $ readFile shim
when (curr /= content) $ do
createDirectoryIfMissing True (parentDir shim)
writeFile shim content
modifyFileMode shim $ addModes [ownerExecuteMode]
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