1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
{- git-update-index library
-
- Copyright 2011, 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Git.UpdateIndex (
Streamer,
stream_update_index,
ls_tree,
update_index_line,
) where
import System.Cmd.Utils
import Common
import Git
import Git.Types
import Git.Command
import Git.FilePath
{- Streamers are passed a callback and should feed it lines in the form
- read by update-index, and generated by ls-tree. -}
type Streamer = (String -> IO ()) -> IO ()
{- Streams content into update-index from a list of Streamers. -}
stream_update_index :: Repo -> [Streamer] -> IO ()
stream_update_index repo as = do
(p, h) <- hPipeTo "git" (toCommand $ gitCommandLine params repo)
fileEncoding h
forM_ as (stream h)
hClose h
forceSuccess p
where
params = map Param ["update-index", "-z", "--index-info"]
stream h a = a (streamer h)
streamer h s = do
hPutStr h s
hPutStr h "\0"
{- Gets the current tree for a ref. -}
ls_tree :: Ref -> Repo -> Streamer
ls_tree (Ref x) repo streamer = mapM_ streamer =<< pipeNullSplit params repo
where
params = map Param ["ls-tree", "-z", "-r", "--full-tree", x]
{- Generates a line suitable to be fed into update-index, to add
- a given file with a given sha. -}
update_index_line :: Sha -> BlobType -> TopFilePath -> String
update_index_line sha filetype file =
show filetype ++ " blob " ++ show sha ++ "\t" ++ getTopFilePath file
|
