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|
{- git-annex command
-
- Copyright 2013-2017 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Command.LookupKey where
import Command
import Annex.CatFile
import qualified Git.LsFiles
import Git.Types
import Utility.Terminal
import Utility.SafeOutput
cmd :: Command
cmd = noCommit $ noMessages $
command "lookupkey" SectionPlumbing
"looks up key used for file"
(paramRepeating paramFile)
(batchable run optParser)
data LookupKeyOptions = LookupKeyOptions
{ refOption :: Bool
}
optParser :: Parser LookupKeyOptions
optParser = LookupKeyOptions
<$> switch
( long "ref"
<> help "look up key used by git ref to file"
)
run :: LookupKeyOptions -> SeekInput -> String -> Annex Bool
run o _ file
| refOption o = catKey (Ref (toRawFilePath file)) >>= display
| otherwise = do
checkNotBareRepo
seekSingleGitFile (toOsPath file) >>= \case
Nothing -> return False
Just file' -> catKeyFile file' >>= display
display :: Maybe Key -> Annex Bool
display (Just k) = do
IsTerminal isterminal <- liftIO $ checkIsTerminal stdout
let sk = serializeKey k
liftIO $ putStrLn $ if isterminal then safeOutput sk else sk
return True
display Nothing = return False
-- To support absolute filenames, pass through git ls-files.
-- But, this plumbing command does not recurse through directories.
seekSingleGitFile :: OsPath -> Annex (Maybe OsPath)
seekSingleGitFile file
| isRelative file = return (Just file)
| otherwise = do
(l, cleanup) <- inRepo (Git.LsFiles.inRepo [] [file])
r <- case l of
(f:[]) | takeFileName f == takeFileName file ->
return (Just f)
_ -> return Nothing
void $ liftIO cleanup
return r
|
