haskell/yesod
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exit application on enter

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This commit is contained in:
Luite Stegeman 2011-09-05 23:04:48 +02:00
parent ddb470b1a7
commit 58a91c7634
1 changed files with 30 additions and 18 deletions
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48
yesod/Devel.hs
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@ -25,7 +25,7 @@ import qualified Data.Text.IO as T
import System.Directory (createDirectoryIfMissing, removeFile,
getDirectoryContents)
import System.Exit (exitFailure)
import System.Exit (exitFailure, exitSuccess)
import System.Posix.Types (EpochTime)
import System.PosixCompat.Files (modificationTime, getFileStatus)
import System.Process (runCommand, terminateProcess,
@ -38,24 +38,38 @@ import Build (touch, getDeps, findHaskellFiles)
lockFile :: FilePath
lockFile = "dist/devel-terminate"
devel :: Bool -> IO ()
devel isDevel = do
createDirectoryIfMissing True "dist"
writeLock :: IO ()
writeLock = do
createDirectoryIfMissing True "dist"
writeFile lockFile ""
cabal <- D.findPackageDesc "."
gpd <- D.readPackageDescription D.normal cabal
let pid = (D.package . D.packageDescription) gpd
removeLock :: IO ()
removeLock = try_ (removeFile lockFile)
checkCabalFile gpd
devel :: Bool -> IO ()
devel isDevel = do
writeLock
putStrLn "Yesod devel server. Pres ENTER to quit"
_ <- forkIO $ do
cabal <- D.findPackageDesc "."
gpd <- D.readPackageDescription D.normal cabal
let pid = (D.package . D.packageDescription) gpd
_ <- if isDevel
then rawSystem "cabal-dev" ["configure", "--cabal-install-arg=-fdevel"]
else rawSystem "cabal" ["configure", "-fdevel"]
checkCabalFile gpd
T.writeFile "dist/devel.hs" (develFile pid)
_ <- if isDevel
then rawSystem "cabal-dev" ["configure", "--cabal-install-arg=-fdevel"]
else rawSystem "cabal" ["configure", "-fdevel"]
T.writeFile "dist/devel.hs" (develFile pid)
mainLoop isDevel
_ <- getLine
writeLock
exitSuccess
mainLoop isDevel
mainLoop :: Bool -> IO ()
@ -69,14 +83,14 @@ mainLoop isDevel = forever $ do
then rawSystem "cabal" ["build"]
else rawSystem "cabal-dev" ["build"]
try_ $ removeFile lockFile
removeLock
putStrLn "Starting development server..."
pkg <- pkgConfigs isDevel
ph <- runCommand $ concat ["runghc ", pkg, " dist/devel.hs"]
watchTid <- forkIO . try_ $ do
watchForChanges list
putStrLn "Stopping development server..."
writeFile lockFile ""
writeLock
threadDelay 1000000
putStrLn "Terminating development server..."
terminateProcess ph
@ -147,9 +161,7 @@ loop = do
if e then terminateDevel else loop
terminateDevel :: IO ()
terminateDevel = do
putStrLn "Devel application exiting"
exitSuccess
terminateDevel = exitSuccess
|]
checkCabalFile :: D.GenericPackageDescription -> IO ()