diff options
Diffstat (limited to 'git-annex.hs')
| -rw-r--r-- | git-annex.hs | 39 |
1 files changed, 24 insertions, 15 deletions
diff --git a/git-annex.hs b/git-annex.hs index a96dd8cbd..f1af0eea5 100644 --- a/git-annex.hs +++ b/git-annex.hs @@ -48,29 +48,38 @@ main = do isshell n = takeFileName n == "git-annex-shell" #ifdef mingw32_HOST_OS -{- On Windows, if HOME is not set, probe it and set it, re-execing - - git-annex with the new environment. - - +{- On Windows, if HOME is not set, probe it and set it. - This is a workaround for some Cygwin commands needing HOME to be set, - and for there being no known way to set environment variables on - Windows, except by passing an environment in each call to a program. - While ugly, this workaround is easier than trying to ensure HOME is set - in all calls to the affected programs. + - + - If TZ is set, unset it. + - TZ being set can interfere with workarounds for Windows timezone + - horribleness, and prevents getCurrentTimeZone from seeing the system + - time zone. + - + - Due to Windows limitations, have to re-exec git-annex with the new + - environment. -} winEnv :: ([String] -> IO ()) -> [String] -> IO () -winEnv a ps = go =<< getEnv "HOME" +winEnv a ps = do + e <- getEnvironment + home <- myHomeDir + let e' = wantedenv e home + if (e' /= e) + then do + cmd <- readProgramFile + (_, _, _, pid) <- createProcess (proc cmd ps) + { env = Just e' } + exitWith =<< waitForProcess pid + else a ps where - go (Just _) = a ps - go Nothing = do - home <- myHomeDir - putStrLn $ "** Windows hack; overrideing HOME to " ++ home - e <- getEnvironment - let eoverride = + wantedenv e home = delEntry "TZ" $ case lookup "HOME" e of + Nothing -> e + Just _ -> addEntries [ ("HOME", home) , ("CYGWIN", "nodosfilewarning") - ] - cmd <- readProgramFile - (_, _, _, pid) <- createProcess (proc cmd ps) - { env = Just $ e ++ eoverride } - exitWith =<< waitForProcess pid + ] e #endif |