reorder repo parameters last

Many functions took the repo as their first parameter. Changing it
consistently to be the last parameter allows doing some useful things with
currying, that reduce boilerplate.

In particular, g <- gitRepo is almost never needed now, instead
use inRepo to run an IO action in the repo, and fromRepo to get
a value from the repo.

This also provides more opportunities to use monadic and applicative
combinators.
This commit is contained in:
Joey Hess 2011-11-08 15:34:10 -04:00
parent 2ff8915365
commit bf460a0a98
46 changed files with 338 additions and 390 deletions

View file

@ -35,19 +35,16 @@ remote = RemoteType {
list :: Annex [Git.Repo]
list = do
g <- gitRepo
let c = Git.configMap g
mapM (tweakurl c) $ Git.remotes g
c <- fromRepo Git.configMap
mapM (tweakurl c) =<< fromRepo Git.remotes
where
annexurl n = "remote." ++ n ++ ".annexurl"
tweakurl c r = do
let n = fromJust $ Git.repoRemoteName r
case M.lookup (annexurl n) c of
Nothing -> return r
Just url -> do
g <- gitRepo
r' <- liftIO $ Git.genRemote g url
return $ Git.repoRemoteNameSet r' n
Just url -> Git.repoRemoteNameSet n <$>
inRepo (Git.genRemote url)
gen :: Git.Repo -> UUID -> Maybe RemoteConfig -> Annex (Remote Annex)
gen r u _ = do
@ -178,7 +175,7 @@ copyFromRemote :: Git.Repo -> Key -> FilePath -> Annex Bool
copyFromRemote r key file
| not $ Git.repoIsUrl r = do
params <- rsyncParams r
rsyncOrCopyFile params (gitAnnexLocation r key) file
rsyncOrCopyFile params (gitAnnexLocation key r) file
| Git.repoIsSsh r = rsyncHelper =<< rsyncParamsRemote r True key file
| Git.repoIsHttp r = liftIO $ Url.download (keyUrl r key) file
| otherwise = error "copying from non-ssh, non-http repo not supported"
@ -187,8 +184,7 @@ copyFromRemote r key file
copyToRemote :: Git.Repo -> Key -> Annex Bool
copyToRemote r key
| not $ Git.repoIsUrl r = do
g <- gitRepo
let keysrc = gitAnnexLocation g key
keysrc <- fromRepo $ gitAnnexLocation key
params <- rsyncParams r
-- run copy from perspective of remote
liftIO $ onLocal r $ do
@ -197,8 +193,7 @@ copyToRemote r key
Annex.Content.saveState
return ok
| Git.repoIsSsh r = do
g <- gitRepo
let keysrc = gitAnnexLocation g key
keysrc <- fromRepo $ gitAnnexLocation key
rsyncHelper =<< rsyncParamsRemote r False key keysrc
| otherwise = error "copying to non-ssh repo not supported"