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
|
----------------------------------------------------------------------------
-- |
-- Module : Main
-- Copyright : (c) Spencer Janssen 2007
-- License : BSD3-style (see LICENSE)
--
-- Maintainer : sjanssen@cse.unl.edu
-- Stability : unstable
-- Portability : not portable, uses mtl, X11, posix
--
-- metatile, a minimalist, tiling window manager for X11
--
-----------------------------------------------------------------------------
module Main (main) where
import MetaTile
import Control.Monad (unless)
import System.Info
import System.Environment
import System.Posix.Process (executeFile)
import System.Exit (exitFailure)
import Paths_metatile (version)
import Data.Version (showVersion)
import Graphics.X11.Xinerama (compiledWithXinerama)
#ifdef TESTING
import qualified Properties
#endif
-- | The entry point into metatile. Attempts to compile any custom main
-- for metatile, and if it doesn't find one, just launches the default.
main :: IO ()
main = do
installSignalHandlers -- important to ignore SIGCHLD to avoid zombies
args <- getArgs
let launch = catchIO buildLaunch >> metatile def
case args of
[] -> launch
("--resume":_) -> launch
["--help"] -> usage
["--recompile"] -> recompile True >>= flip unless exitFailure
["--replace"] -> launch
["--restart"] -> sendRestart >> return ()
["--version"] -> putStrLn $ unwords shortVersion
["--verbose-version"] -> putStrLn . unwords $ shortVersion ++ longVersion
#ifdef TESTING
("--run-tests":_) -> Properties.main
#endif
_ -> fail "unrecognized flags"
where
shortVersion = ["metatile", showVersion version]
longVersion = [ "compiled by", compilerName, showVersion compilerVersion
, "for", arch ++ "-" ++ os
, "\nXinerama:", show compiledWithXinerama ]
usage :: IO ()
usage = do
self <- getProgName
putStr . unlines $
concat ["Usage: ", self, " [OPTION]"] :
"Options:" :
" --help Print this message" :
" --version Print the version number" :
" --recompile Recompile your ~/.metatile/metatile.hs" :
" --replace Replace the running window manager with metatile" :
" --restart Request a running metatile process to restart" :
#ifdef TESTING
" --run-tests Run the test suite" :
#endif
[]
-- | Build "~\/.metatile\/metatile.hs" with ghc, then execute it. If there are no
-- errors, this function does not return. An exception is raised in any of
-- these cases:
--
-- * ghc missing
--
-- * both "~\/.metatile\/metatile.hs" and "~\/.metatile\/metatile-$arch-$os" missing
--
-- * metatile.hs fails to compile
--
-- ** wrong ghc in path (fails to compile)
--
-- ** type error, syntax error, ..
--
-- * Missing MetaTile\/MetaTileContrib modules due to ghc upgrade
--
buildLaunch :: IO ()
buildLaunch = do
recompile False
dir <- getMetaTileDir
args <- getArgs
executeFile (dir ++ "/metatile-"++arch++"-"++os) False args Nothing
return ()
sendRestart :: IO ()
sendRestart = do
dpy <- openDisplay ""
rw <- rootWindow dpy $ defaultScreen dpy
xmonad_restart <- internAtom dpy "XMONAD_RESTART" False
allocaXEvent $ \e -> do
setEventType e clientMessage
setClientMessageEvent e rw xmonad_restart 32 0 currentTime
sendEvent dpy rw False structureNotifyMask e
sync dpy False
|
