git-annex/Command/Version.hs

70 lines
1.7 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Version where
import Command
import qualified Build.SysConfig as SysConfig
import Annex.Version
import BuildFlags
import qualified Types.Backend as B
import qualified Types.Remote as R
import qualified Remote
import qualified Backend
cmd :: Command
cmd = dontCheck repoExists $ noCommit $
noRepo (seekNoRepo <$$> optParser) $
command "version" SectionQuery "show version info"
paramNothing (seek <$$> optParser)
data VersionOptions = VersionOptions
{ rawOption :: Bool
}
optParser :: CmdParamsDesc -> Parser VersionOptions
optParser _ = VersionOptions
<$> switch
( long "raw"
<> help "output only program version"
)
seek :: VersionOptions -> CommandSeek
seek o
| rawOption o = liftIO showRawVersion
| otherwise = showVersion
seekNoRepo :: VersionOptions -> IO ()
seekNoRepo o
| rawOption o = showRawVersion
| otherwise = showPackageVersion
showVersion :: Annex ()
showVersion = do
v <- getVersion
liftIO $ do
showPackageVersion
vinfo "local repository version" $ fromMaybe "unknown" v
vinfo "supported repository versions" $
unwords supportedVersions
vinfo "upgrade supported from repository versions" $
unwords upgradableVersions
showPackageVersion :: IO ()
showPackageVersion = do
vinfo "git-annex version" SysConfig.packageversion
vinfo "build flags" $ unwords buildFlags
vinfo "key/value backends" $ unwords $ map B.name Backend.list
vinfo "remote types" $ unwords $ map R.typename Remote.remoteTypes
showRawVersion :: IO ()
showRawVersion = do
putStr SysConfig.packageversion
hFlush stdout -- no newline, so flush
vinfo :: String -> String -> IO ()
vinfo k v = putStrLn $ k ++ ": " ++ v