Conscript (empty) → 0.1.0.0

raw patch · 4 files changed

+91/−0 lines, 4 filesdep +basedep +processsetup-changed

Dependencies added: base, process

Files

• Conscript.cabal +22/−0
• Conscript.hs +44/−0
• LICENSE +23/−0
• Setup.hs +2/−0

@@ -0,0 +1,22 @@+-- Initial Conscript.cabal generated by cabal init.  For further +-- documentation, see http://haskell.org/cabal/users-guide/++name:                Conscript+version:             0.1.0.0+synopsis:            Restart a command on STDIN activity+description:         Restart a command on STDIN activity+homepage:            https://github.com/sordina/Conscript+license:             MIT+license-file:        LICENSE+author:              Lyndon Maydwell+maintainer:          lyndon@sordina.net+category:            System+build-type:          Simple+cabal-version:       >=1.8++executable conscript+  main-is: Conscript.hs+  build-depends:+    base    >= 4.5 && < 4.7,+    process >= 1.1 && < 1.3+  ghc-options: -O3 -threaded -with-rtsopts -N2

@@ -0,0 +1,44 @@+import System.Environment+import System.Process+import System.Exit+import System.IO+import Control.Monad+import Control.Concurrent++main :: IO ()+main = getArgs >>= options++options :: [String] -> IO ()+options []           = help+options ("-h"    :_) = help+options ("--help":_) = help+options args         = run args++run :: [String] -> IO ()+run args = do+  hSetBuffering stdin  LineBuffering+  hSetBuffering stdout LineBuffering+  blocker <- newEmptyMVar+  running <- newEmptyMVar+  void $ forkIO $ forever $ starter args blocker running+  mapM_ (killer blocker running) . lines =<< getContents++killer :: MVar () -> MVar ProcessHandle -> String -> IO ()+killer blocker running _input = void $ takeMVar running >>= terminateProcess >> takeMVar blocker++starter :: [String] -> MVar () -> MVar ProcessHandle -> IO ()+starter args blocker running = do+  putMVar blocker ()+  p <- startProcess args+  putMVar running p+  code <- waitForProcess p+  case code of ExitFailure 15 -> return () -- Killed!+               ExitFailure i  -> putStrLn $ "Process [" ++ unwords args ++ "] failed with exit-status [" ++ show i ++ "]"+               ExitSuccess    -> return ()++startProcess :: [String] -> IO ProcessHandle+startProcess (h:t) = (\(_,_,_,ph) -> ph) `fmap` createProcess (proc h t)+startProcess []    = help >> exitFailure++help :: IO ()+help = putStrLn "Usage: conscript command [args*]"

@@ -0,0 +1,23 @@+The MIT License (MIT)++Copyright (c) 2013 Lyndon Maydwell++Permission is hereby granted, free of charge, to any person obtaining a copy+of this software and associated documentation files (the "Software"), to deal+in the Software without restriction, including without limitation the rights+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell+copies of the Software, and to permit persons to whom the Software is+furnished to do so, subject to the following conditions:++The above copyright notice and this permission notice shall be included in+all copies or substantial portions of the Software.++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN+THE SOFTWARE.++

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain