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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
{- git-annex command line parsing and dispatch
-
- Copyright 2010-2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE CPP #-}
module CmdLine (
dispatch,
usage,
shutdown
) where
import qualified Control.Exception as E
import qualified Data.Map as M
import Control.Exception (throw)
import System.Console.GetOpt
#ifndef mingw32_HOST_OS
import System.Posix.Signals
#endif
import Common.Annex
import qualified Annex
import qualified Git
import qualified Git.AutoCorrect
import Annex.Content
import Annex.Ssh
import Annex.Environment
import Command
import Types.Messages
{- Runs the passed command line. -}
dispatch :: Bool -> CmdParams -> [Command] -> [Option] -> [(String, String)] -> String -> IO Git.Repo -> IO ()
dispatch fuzzyok allargs allcmds commonoptions fields header getgitrepo = do
setupConsole
r <- E.try getgitrepo :: IO (Either E.SomeException Git.Repo)
case r of
Left e -> maybe (throw e) (\a -> a params) (cmdnorepo cmd)
Right g -> do
state <- Annex.new g
Annex.eval state $ do
checkEnvironment
checkfuzzy
forM_ fields $ uncurry Annex.setField
when (cmdnomessages cmd) $
Annex.setOutput QuietOutput
sequence_ flags
whenM (annexDebug <$> Annex.getGitConfig) $
liftIO enableDebugOutput
startup
performCommand cmd params
shutdown $ cmdnocommit cmd
where
err msg = msg ++ "\n\n" ++ usage header allcmds
cmd = Prelude.head cmds
(fuzzy, cmds, name, args) = findCmd fuzzyok allargs allcmds err
(flags, params) = getOptCmd args cmd commonoptions
checkfuzzy = when fuzzy $
inRepo $ Git.AutoCorrect.prepare name cmdname cmds
{- Parses command line params far enough to find the Command to run, and
- returns the remaining params.
- Does fuzzy matching if necessary, which may result in multiple Commands. -}
findCmd :: Bool -> CmdParams -> [Command] -> (String -> String) -> (Bool, [Command], String, CmdParams)
findCmd fuzzyok argv cmds err
| isNothing name = error $ err "missing command"
| not (null exactcmds) = (False, exactcmds, fromJust name, args)
| fuzzyok && not (null inexactcmds) = (True, inexactcmds, fromJust name, args)
| otherwise = error $ err $ "unknown command " ++ fromJust name
where
(name, args) = findname argv []
findname [] c = (Nothing, reverse c)
findname (a:as) c
| "-" `isPrefixOf` a = findname as (a:c)
| otherwise = (Just a, reverse c ++ as)
exactcmds = filter (\c -> name == Just (cmdname c)) cmds
inexactcmds = case name of
Nothing -> []
Just n -> Git.AutoCorrect.fuzzymatches n cmdname cmds
{- Parses command line options, and returns actions to run to configure flags
- and the remaining parameters for the command. -}
getOptCmd :: CmdParams -> Command -> [Option] -> ([Annex ()], CmdParams)
getOptCmd argv cmd commonoptions = check $
getOpt Permute (commonoptions ++ cmdoptions cmd) argv
where
check (flags, rest, []) = (flags, rest)
check (_, _, errs) = error $ unlines
[ concat errs
, commandUsage cmd
]
{- Actions to perform each time ran. -}
startup :: Annex ()
startup =
#ifndef mingw32_HOST_OS
liftIO $ void $ installHandler sigINT Default Nothing
#else
return ()
#endif
{- Cleanup actions. -}
shutdown :: Bool -> Annex ()
shutdown nocommit = do
saveState nocommit
sequence_ =<< M.elems <$> Annex.getState Annex.cleanup
liftIO reapZombies -- zombies from long-running git processes
sshCleanup -- ssh connection caching
|
