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{- git-annex extra config files
-
- Copyright 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE CPP #-}
module Config.Files where
import Common
import Utility.Tmp
import Utility.FreeDesktop
import System.Environment
{- ~/.config/git-annex/file -}
userConfigFile :: FilePath -> IO FilePath
userConfigFile file = do
dir <- userConfigDir
return $ dir </> "git-annex" </> file
autoStartFile :: IO FilePath
autoStartFile = userConfigFile "autostart"
{- Returns anything listed in the autostart file (which may not exist). -}
readAutoStartFile :: IO [FilePath]
readAutoStartFile = do
f <- autoStartFile
nub . map dropTrailingPathSeparator . lines
<$> catchDefaultIO "" (readFile f)
modifyAutoStartFile :: ([FilePath] -> [FilePath]) -> IO ()
modifyAutoStartFile func = do
dirs <- readAutoStartFile
let dirs' = nubBy equalFilePath $ func dirs
when (dirs' /= dirs) $ do
f <- autoStartFile
createDirectoryIfMissing True (parentDir f)
viaTmp writeFile f $ unlines dirs'
{- Adds a directory to the autostart file. If the directory is already
- present, it's moved to the top, so it will be used as the default
- when opening the webapp. -}
addAutoStartFile :: FilePath -> IO ()
addAutoStartFile path = modifyAutoStartFile $ (:) path
{- Removes a directory from the autostart file. -}
removeAutoStartFile :: FilePath -> IO ()
removeAutoStartFile path = modifyAutoStartFile $
filter (not . equalFilePath path)
{- The path to git-annex is written here; which is useful when cabal
- has installed it to some awful non-PATH location. -}
programFile :: IO FilePath
programFile = userConfigFile "program"
{- Returns a command to run for git-annex. -}
readProgramFile :: IO FilePath
readProgramFile = do
programfile <- programFile
p <- catchDefaultIO cmd $
fromMaybe cmd . headMaybe . lines <$> readFile programfile
ifM (inPath p)
( return p
, ifM (inPath cmd)
( return cmd
, error $ "cannot find git-annex program in PATH or in the location listed in " ++ programfile
)
)
where
cmd = "git-annex"
{- A fully qualified path to the currently running git-annex program.
-
- getExecutablePath is available since ghc 7.4.2. On OSs it supports
- well, it returns the complete path to the program. But, on other OSs,
- it might return just the basename.
-}
programPath :: IO (Maybe FilePath)
programPath = do
#if MIN_VERSION_base(4,6,0)
exe <- getExecutablePath
p <- if isAbsolute exe
then return exe
else readProgramFile
#else
p <- readProgramFile
#endif
-- In case readProgramFile returned just the command name,
-- fall back to finding it in PATH.
searchPath p
|
