redis server setup-hook

default.nix

{ makeSetupHook, redis }:

makeSetupHook { deps = [ redis ]; } ./setup-hook.sh

redis-test.nix

{ pkgs ? import <nixpkgs> {} }:

let
  redisHook = pkgs.callPackage ./. {};
in

stdenv.mkDerivation {
  name = "redis-hook-test";
  buildInputs = [ redisHook ];

  unpackPhase = ":";

  doCheck = true;

  checkPhase = ''
    redis-cli -p $redisPort ping
  '';

  installPhase = ''
    touch $out
  '';
}

setup-hook.sh

declare -a backgroundPids

killPhase() {
  echo "killing background jobs..." >&2

  kill "${backgroundPids[@]}" || kill -9 "${backgroundPids[@]}"
  wait "${backgroundPids[@]}"
}

postPhases+=" killPhase"

redisPhase() {
  runHook preRedis

  redisPort=$(shuf -i 2000-65000 -n 1)
  mkdir $NIX_BUILD_TOP/redis
  cat <<-EOF > $NIX_BUILD_TOP/redis/redis.conf
port $redisPort
bind 127.0.0.1
dir $NIX_BUILD_TOP/redis
EOF

  echo "starting redis on port $redisPort..." >&2
  redis-server $NIX_BUILD_TOP/redis/redis.conf &
  backgroundPids+=("$!")

  runHook postRedis
}

prePhases+=" redisPhase"


exitHook() {
  runHook killPhase
}

failureHook() {
  runHook killPhase
}