65 lines
1.8 KiB
Haskell
65 lines
1.8 KiB
Haskell
{- git-annex environment
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-
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- Copyright 2012, 2013 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 Annex.Environment where
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import Common.Annex
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import Utility.UserInfo
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import qualified Git.Config
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import Config
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import Annex.Exception
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#ifndef mingw32_HOST_OS
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import Utility.Env
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#endif
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{- Checks that the system's environment allows git to function.
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- Git requires a GECOS username, or suitable git configuration, or
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- environment variables.
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-
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- Git also requires the system have a hostname containing a dot.
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- Otherwise, it tries various methods to find a FQDN, and will fail if it
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- does not. To avoid replicating that code here, which would break if its
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- methods change, this function does not check the hostname is valid.
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- Instead, code that commits can use ensureCommit.
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-}
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checkEnvironment :: Annex ()
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checkEnvironment = do
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gitusername <- fromRepo $ Git.Config.getMaybe "user.name"
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when (gitusername == Nothing || gitusername == Just "") $
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liftIO checkEnvironmentIO
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checkEnvironmentIO :: IO ()
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checkEnvironmentIO =
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#ifdef mingw32_HOST_OS
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noop
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#else
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whenM (null <$> myUserGecos) $ do
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username <- myUserName
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ensureEnv "GIT_AUTHOR_NAME" username
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ensureEnv "GIT_COMMITTER_NAME" username
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where
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#ifndef __ANDROID__
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-- existing environment is not overwritten
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ensureEnv var val = void $ setEnv var val False
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#else
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-- Environment setting is broken on Android, so this is dealt with
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-- in runshell instead.
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ensureEnv _ _ = noop
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#endif
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#endif
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{- Runs an action that commits to the repository, and if it fails,
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- sets user.email to a dummy value and tries the action again. -}
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ensureCommit :: Annex a -> Annex a
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ensureCommit a = either retry return =<< tryAnnex a
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where
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retry _ = do
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setConfig (ConfigKey "user.email") =<< liftIO myUserName
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a
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