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module Propellor.Git where
import Propellor
import Utility.SafeCommand
getCurrentBranch :: IO String
getCurrentBranch = takeWhile (/= '\n')
<$> readProcess "git" ["symbolic-ref", "--short", "HEAD"]
getCurrentGitSha1 :: String -> IO String
getCurrentGitSha1 branchref = readProcess "git" ["show-ref", "--hash", branchref]
setRepoUrl :: String -> IO ()
setRepoUrl "" = return ()
setRepoUrl url = do
subcmd <- ifM hasOrigin (pure "set-url", pure "add")
void $ boolSystem "git" [Param "remote", Param subcmd, Param "origin", Param url]
-- same as --set-upstream-to, except origin branch
-- may not have been pulled yet
branch <- getCurrentBranch
let branchval s = "branch." ++ branch ++ "." ++ s
void $ boolSystem "git" [Param "config", Param (branchval "remote"), Param "origin"]
void $ boolSystem "git" [Param "config", Param (branchval "merge"), Param $ "refs/heads/"++branch]
getRepoUrl :: IO (Maybe String)
getRepoUrl = getM get urls
where
urls = ["remote.deploy.url", "remote.origin.url"]
get u = do
v <- catchMaybeIO $
takeWhile (/= '\n')
<$> readProcess "git" ["config", u]
return $ case v of
Just url | not (null url) -> Just url
_ -> Nothing
hasOrigin :: IO Bool
hasOrigin = do
rs <- lines <$> readProcess "git" ["remote"]
return $ "origin" `elem` rs
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