summaryrefslogtreecommitdiff
path: root/Command/Sync.hs
blob: 36c4eeef069c1accf6306091737fea303786f93c (plain)
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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
{- git-annex command
 -
 - Copyright 2011 Joey Hess <joey@kitenet.net>
 -
 - Licensed under the GNU GPL version 3 or higher.
 -}

module Command.Sync where

import Common.Annex
import Command
import qualified Annex.Branch
import qualified Git.Command
import qualified Git.Config
import qualified Git.Ref
import qualified Git

import qualified Data.ByteString.Lazy.Char8 as L

def :: [Command]
def = [command "sync" paramPaths seek "synchronize local repository with remote"]

-- syncing involves several operations, any of which can independantly fail
seek :: [CommandSeek]
seek = map withNothing [commit, pull, push]

commit :: CommandStart
commit = do
	showStart "commit" ""
	next $ next $ do
		showOutput
		-- Commit will fail when the tree is clean, so ignore failure.
		_ <- inRepo $ Git.Command.runBool "commit"
			[Param "-a", Param "-m", Param "sync"]
		return True

pull :: CommandStart
pull = do
	remote <- defaultRemote
	showStart "pull" remote
	next $ next $ do
		showOutput
		checkRemote remote
		inRepo $ Git.Command.runBool "pull" [Param remote]

push :: CommandStart
push = do
	remote <- defaultRemote
	showStart "push" remote
	next $ next $ do
		Annex.Branch.update
		showOutput
		inRepo $ Git.Command.runBool "push" [Param remote, matchingbranches]
	where
		-- git push may be configured to not push matching
		-- branches; this should ensure it always does.
		matchingbranches = Param ":"

-- the remote defaults to origin when not configured
defaultRemote :: Annex String
defaultRemote = do
	branch <- currentBranch
	fromRepo $ Git.Config.get ("branch." ++ branch ++ ".remote") "origin"

currentBranch :: Annex String
currentBranch = Git.Ref.describe . Git.Ref . firstLine . L.unpack <$>
	inRepo (Git.Command.pipeRead [Param "symbolic-ref", Param "HEAD"])

checkRemote :: String -> Annex ()
checkRemote remote = do
	remoteurl <- fromRepo $
		Git.Config.get ("remote." ++ remote ++ ".url") ""
	when (null remoteurl) $ do
		error $ "No url is configured for the remote: " ++ remote