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{ lib, runCommand, ghcWithPackages }:
let
name = "warpspeed-1.0";
script = builtins.toFile "${name}.hs" ''
{-# LANGUAGE OverloadedStrings #-}
module Main where
import Safe
import System.Environment (getArgs)
import System.Exit (die)
import Network.Wai
import Network.Wai.Middleware.Static
import Network.Wai.Handler.Warp
import Network.HTTP.Types.Status
main :: IO ()
main = do
args <- getArgs
port <- case headMay args >>= readMay of
Just p -> pure $ p
Nothing -> die "please specify a port"
runEnv port $ static $ \_ resp -> resp $ responseLBS notFound404 [] ""
'';
deps = hp: with hp; [ wai-middleware-static warp safe ];
in runCommand name {
meta.description = "Trivial and very fast static HTTP file server";
} ''
mkdir -p $out/bin
${ghcWithPackages deps}/bin/ghc -O2 -Wall -o "$out/bin/warpspeed" ${script}
''
|
