101 lines
2.9 KiB
Haskell
101 lines
2.9 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.Install.Menu
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import Assistant.Ssh
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import Config.Files
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import Utility.FileMode
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import Utility.Shell
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import Utility.Tmp
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import Utility.Env
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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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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 </> "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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menufile <- desktopMenuFilePath "git-annex" <$> userDataDir
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icondir <- iconDir <$> userDataDir
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installMenu program menufile base icondir
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autostartfile <- autoStartPath "git-annex" <$> userConfigDir
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#endif
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installAutoStart program autostartfile
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{- This shim is only updated if it doesn't
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- already exist with the right content. -}
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sshdir <- sshDir
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let shim = sshdir </> "git-annex-shell"
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let runshell var = "exec " ++ base </> "runshell" ++
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" git-annex-shell -c \"" ++ var ++ "\""
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let content = unlines
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[ shebang_local
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, "set -e"
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, "if [ \"x$SSH_ORIGINAL_COMMAND\" != \"x\" ]; then"
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, runshell "$SSH_ORIGINAL_COMMAND"
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, "else"
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, runshell "$@"
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, "fi"
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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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viaTmp writeFile shim content
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modifyFileMode shim $ addModes [ownerExecuteMode]
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{- Returns a cleaned up environment that lacks settings used to make the
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- standalone builds use their bundled libraries and programs.
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- Useful when calling programs not included in the standalone builds.
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-
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- For a non-standalone build, returns Nothing.
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-}
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cleanEnvironment :: IO (Maybe [(String, String)])
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cleanEnvironment = clean <$> getEnvironment
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where
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clean env
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| null vars = Nothing
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| otherwise = Just $ catMaybes $ map (restoreorig env) env
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| otherwise = Nothing
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where
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vars = words $ fromMaybe "" $
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lookup "GIT_ANNEX_STANDLONE_ENV" env
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restoreorig oldenv p@(k, _v)
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| k `elem` vars = case lookup ("ORIG_" ++ k) oldenv of
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Nothing -> Nothing
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(Just v') -> Just (k, v')
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| otherwise = Just p
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