#!/usr/bin/env bash
# Regenerates every file in output/. Run from the jmm/ directory after `mvn package`.
#
# Needs a JDK 25 on PATH (or set JAVA_HOME below) - jcstress-core 0.16's annotation
# processor is NOT auto-discovered by javac on JDK 25 without -processorpath, which is
# why the pom's <annotationProcessorPaths> block exists; see output/04-*.txt.
#
# The three jcstress runs below use a fixed, non-default JVM config (-jvmArgs) on
# purpose: without it, jcstress auto-detects and iterates over several compiler-flag
# combinations, multiplying the number of forked JVMs far past what this sandbox's
# 2 CPUs can get through in a reasonable time. -f 2 -iters 15 -time 1000 with a fixed
# JVM config took about 4m45s per test on that hardware.
set -euo pipefail
cd "$(dirname "$0")/.."

JAR=target/jcstress.jar
[ -f "$JAR" ] || { echo "Run 'mvn package' first."; exit 1; }

run_test() {
  local test_class="$1" out_file="$2"
  echo "==> $test_class"
  {
    echo "\$ java -jar target/jcstress.jar -t $test_class -jvmArgs \"-Xmx256m\" -f 2 -iters 15 -time 1000"
    echo
  } > "$out_file"
  java -jar "$JAR" -t "$test_class" -jvmArgs "-Xmx256m" -f 2 -iters 15 -time 1000 -v 2>/dev/null \
    | awk '/^RUN RESULTS:/{p=1} p==1 && /VM error stream:/{exit} p' >> "$out_file"
}

run_test PlainPublicationTest      output/01-plain-publication.txt
run_test VolatilePublicationTest   output/02-volatile-publication.txt
run_test FinalFieldPublicationTest output/03-final-field-publication.txt

echo "==> SingletonBehaviorTest (JUnit)"
mvn -q test
{
  echo '$ mvn -q test'
  echo
  cat target/surefire-reports/com.ankurm.jmm.SingletonBehaviorTest.txt
} > output/05-singleton-behavior.txt

echo "Done. output/ regenerated."