more refactor

This commit is contained in:
Joey Hess 2010-10-14 03:40:26 -04:00
commit f407f23a54
3 changed files with 98 additions and 88 deletions

View file

@ -1,7 +1,6 @@
{- git-annex subcommands -}
module Commands (
start,
annexCmd,
unannexCmd,
getCmd,
@ -26,32 +25,6 @@ import UUID
import LocationLog
import Types
{- Create and returns an Annex state object.
- Examines and prepares the git repo.
-}
start :: IO AnnexState
start = do
g <- Git.repoFromCwd
let s = Annex.new g
(_,s') <- Annex.run s (prep g)
return s'
where
prep g = do
-- setup git and read its config; update state
g' <- liftIO $ Git.configRead g
Annex.gitRepoChange g'
liftIO $ gitSetup g'
Annex.backendsChange $ parseBackendList $
Git.configGet g' "annex.backends" ""
prepUUID
inBackend file yes no = do
r <- liftIO $ Backend.lookupFile file
case (r) of
Just v -> yes v
Nothing -> no
notinBackend file yes no = inBackend file no yes
{- Annexes a file, storing it in a backend, and then moving it into
- the annex directory and setting up the symlink pointing to its content. -}
annexCmd :: FilePath -> Annex ()
@ -146,30 +119,6 @@ pushCmd reponame = do error "not implemented" -- TODO
pullCmd :: String -> Annex ()
pullCmd reponame = do error "not implemented" -- TODO
{- Sets up a git repo for git-annex. May be called repeatedly. -}
gitSetup :: Git.Repo -> IO ()
gitSetup repo = do
-- configure git to use union merge driver on state files
exists <- doesFileExist attributes
if (not exists)
then do
writeFile attributes $ attrLine ++ "\n"
commit
else do
content <- readFile attributes
if (all (/= attrLine) (lines content))
then do
appendFile attributes $ attrLine ++ "\n"
commit
else return ()
where
attrLine = stateLoc ++ "/*.log merge=union"
attributes = Git.attributes repo
commit = do
Git.run repo ["add", attributes]
Git.run repo ["commit", "-m", "git-annex setup",
attributes]
{- Updates the LocationLog when a key's presence changes. -}
logStatus :: Key -> LogStatus -> Annex ()
logStatus key status = do
@ -182,6 +131,13 @@ logStatus key status = do
Git.run g ["add", f]
Git.run g ["commit", "-m", "git-annex log update", f]
inBackend file yes no = do
r <- liftIO $ Backend.lookupFile file
case (r) of
Just v -> yes v
Nothing -> no
notinBackend file yes no = inBackend file no yes
{- Checks if a given key is currently present in the annexLocation -}
inAnnex :: Backend -> Key -> Annex Bool
inAnnex backend key = do