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