test

#/usr/bin/env bash
set -eu

function build {
  s2i build --rm --incremental --loglevel=1 . accursoft/ghc test
}

function remove {
  docker rm -f test >/dev/null
}

function begin {
  echo
  echo " * Testing $1 ..."
}

function run {
  begin "$1"
  build
  docker run --name test -d -p 8080:8080 -u 1001 test >/dev/null
  sleep 0.1
}

function fail {
  echo " * $1 FAILED"
  exit 1
}

function check {
  run "$1"
  curl -sS localhost:8080 | grep -q $2 || fail "$1"
  remove
}

function check_build {
  begin "$1"
  build |& tee ../build.log
  grep -q "$2" ../build.log || fail "$1"
}

#create app
mkdir server
cp test-server/* server
cd server
mkdir -p .s2i/markers .s2i/hooks
check "create app" "Welcome"

#cabal flags
cp Main.hs test.hs
sed -i 's/Welcome/Greetings/' test.hs
echo "Flag A" >>server.cabal
sed -i 's/main-is: *Main.hs/if flag(a) {main-is:Main.hs} else {main-is:test.hs}/' server.cabal
echo "b" >.s2i/markers/cabal_flags
check "enable flags" "Welcome"
echo "-a" >>.s2i/markers/cabal_flags
check "unset flag" "Greetings"
rm .s2i/markers/cabal_flags

#run_tests
touch .s2i/markers/run_tests
echo "main = return ()" >test.hs
echo "test-suite test
  type:exitcode-stdio-1.0
  main-is:test.hs
  build-depends:groups" >>server.cabal
  #check that test dependencies are installed
check "run_tests" "Welcome"
rm .s2i/markers/run_tests

#pre_build hook
echo "sed -i 's/Welcome/Greetings/' Main.hs" >.s2i/hooks/pre_build
chmod +x .s2i/hooks/pre_build
check "pre_build hook" "Greetings"
rm .s2i/hooks/pre_build

#preserve installed packages
sed -i 's/base/base,groups/' server.cabal
check_build "use previously installed package" "server"
grep -q "groups2" ../build.log && fail "package groups from earlier build was not reused"

#sequential build
touch .s2i/markers/sequential
check_build "sequential build" "Compiling"
rm .s2i/markers/sequential

#cabal_update
touch .s2i/markers/cabal_update
check_build "cabal_update" "Downloading the latest package list"
rm .s2i/markers/cabal_update

#logs
touch .s2i/markers/logs
check_build "logs" "Compiling"
rm .s2i/markers/logs

#user security
echo "touch /home/build/tamper" >.s2i/hooks/pre_run
chmod +x .s2i/hooks/pre_run
run "user security"
docker logs test |& grep -iq " Permission denied" || fail "user security"
remove

#pre_run hook
echo "echo Greetings >/tmp/response" >.s2i/hooks/pre_run
sed -i '
s/responseLBS/responseFile/
s|"Welcome"|"/tmp/response"\n  Nothing|
' Main.hs
chmod +x .s2i/hooks/pre_run
check "pre_run hook" "Greetings"
rm .s2i/hooks/pre_run

echo
echo " * PASSED"
echo

#clear up
cd ..
rm -r server build.log
docker rmi test >/dev/null

docker inspect -f '{{index .ContainerConfig.Labels "io.k8s.display-name"}}
{{index .ContainerConfig.Labels "io.k8s.description"}}
{{index .ContainerConfig.Labels "io.openshift.tags"}}' accursoft/ghc