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Log errors to stderr #70

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Merged
patritzenfeld merged 3 commits into from
Apr 21, 2026
Merged

Log errors to stderr #70

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ee1c55a
Log errors to stderr
nimec01 Apr 20, 2026
4024b6f
Merge branch 'fmidue' into error-log-stderr
jvoigtlaender Apr 20, 2026
706a1bc
Merge branch 'fmidue' into error-log-stderr
jvoigtlaender Apr 20, 2026
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11 changes: 8 additions & 3 deletions codeworld-server/src/Main.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -55,13 +55,14 @@ import Model
import Network.HTTP.Simple
import Ormolu (OrmoluException, defaultConfig, ormolu)
import Snap.Core
import Snap.Http.Server (httpServe)
import qualified Snap.Http.Server.Config as S (commandLineConfig, defaultConfig, setPort)
import Snap.Http.Server (httpServe, ConfigLog (ConfigIoLog))
import qualified Snap.Http.Server.Config as S (commandLineConfig, defaultConfig, setPort, setErrorLog)
import Snap.Util.FileServe
import Snap.Util.FileUploads
import System.Directory
import System.FileLock
import System.FilePath
import System.IO (stderr)
import System.IO.Temp
import System.Environment (lookupEnv)
import Util
Expand All @@ -75,12 +76,16 @@ data Context = Context
config :: Config
}

customErrorLog :: ConfigLog
customErrorLog = ConfigIoLog $ B.hPutStr stderr

main :: IO ()
main = do
cfg <- loadConfig
ctx <- makeContext cfg
port <- maybe Nothing readMaybe <$> lookupEnv "PORT" :: IO (Maybe Int)
cfg <- S.commandLineConfig ((maybe id (\p -> S.setPort p) port) S.defaultConfig)
let customDefaultConfig = S.setErrorLog customErrorLog ((maybe id (\p -> S.setPort p) port) S.defaultConfig)
cfg <- S.commandLineConfig customDefaultConfig
forkIO $ baseVersion >>= buildBaseIfNeeded ctx >> return ()
httpServe cfg $ (processBody >> site ctx) <|> site ctx

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2 changes: 0 additions & 2 deletions run.sh
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Expand Up @@ -26,7 +26,5 @@ rm -rf $(for fn in $(find data/base -atime +20 -regex .*\\.js$ ); do dirname $fn

fuser -k -n tcp "${PORT}"

mkdir -p log

export CONFIG_PATH=$(pwd)/config.yaml
run . ./build/bin/codeworld-server -p $PORT --no-access-log
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