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module Propellor.Git where
import Utility.Process
import Utility.Exception
import Utility.Directory
import Utility.Misc
import Utility.PartialPrelude
import Data.Maybe
import Control.Applicative
import Prelude
getCurrentBranch :: IO String
getCurrentBranch = takeWhile (/= '\n')
<$> readProcess "git" ["symbolic-ref", "--short", "HEAD"]
getCurrentBranchRef :: IO String
getCurrentBranchRef = takeWhile (/= '\n')
<$> readProcess "git" ["symbolic-ref", "HEAD"]
getCurrentGitSha1 :: String -> IO String
getCurrentGitSha1 branchref = takeWhile (/= '\n')
<$> readProcess "git" ["show-ref", "--hash", branchref]
hasOrigin :: IO Bool
hasOrigin = catchDefaultIO False $ do
rs <- lines <$> readProcess "git" ["remote"]
return $ "origin" `elem` rs
hasGitRepo :: IO Bool
hasGitRepo = doesFileExist ".git/HEAD"
type Version = [Int]
gitVersion :: IO Version
gitVersion = extract <$> readProcess "git" ["--version"]
where
extract s = case lines s of
[] -> []
(l:_) -> mapMaybe readish $ segment (== '.') $
unwords $ drop 2 $ words l
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