build.sh

#!/usr/bin/env bash
set -e

if ! command -v java &>/dev/null; then
    echo "ERROR: Java is not installed or not in PATH. Install JDK 17 or newer." >&2
    exit 1
fi

if ! command -v javac &>/dev/null; then
    echo "ERROR: javac not found. You have a JRE, not a JDK. Install JDK 17 or newer." >&2
    exit 1
fi

if [ "${SKIP_JPACKAGE:-0}" != "1" ] && ! command -v jpackage &>/dev/null; then
    echo "ERROR: jpackage not found. Install JDK 17 or newer." >&2
    exit 1
fi

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$SCRIPT_DIR"

JAR_OUTPUT_DIR="Jar Output"
EXE_OUTPUT_DIR="Exe Output"
CLASSES_DIR="$JAR_OUTPUT_DIR/classes"
PACKAGE_INPUT_DIR="$JAR_OUTPUT_DIR/jpackage-input"

rm -rf "$JAR_OUTPUT_DIR"
mkdir -p "$CLASSES_DIR"

if [ -d src/main/resources ]; then
    cp -r src/main/resources/. "$CLASSES_DIR/"
fi

mkdir -p "$CLASSES_DIR/cache"
for cache_file in \
    main_file_cache.dat \
    main_file_cache.idx0 \
    main_file_cache.idx1 \
    main_file_cache.idx2 \
    main_file_cache.idx3 \
    main_file_cache.idx4; do
    if [ -f "cache/$cache_file" ]; then
        cp "cache/$cache_file" "$CLASSES_DIR/cache/"
    fi
done

find src/main/java -name "*.java" > sources.txt

javac -J-Xmx1g --release 17 -encoding UTF-8 -cp "lib/*" -d "$CLASSES_DIR" @sources.txt
rm sources.txt

# Fold runtime dependencies and LWJGL natives into the artifact so the JAR can
# be copied and launched without a sibling lib directory.
for dependency in lib/*.jar; do
    (cd "$CLASSES_DIR" && jar --extract --file "../../$dependency")
done
rm -f "$CLASSES_DIR/META-INF/MANIFEST.MF"
rm -f "$CLASSES_DIR"/META-INF/*.SF "$CLASSES_DIR"/META-INF/*.DSA "$CLASSES_DIR"/META-INF/*.RSA

BUILD_TIME="$(date -u +"%Y-%m-%dT%H:%M:%SZ")"
CLIENT_VERSION="${CLIENT_VERSION:-1.7}"
CLIENT_VERSION="${CLIENT_VERSION#v}"
cat > "$JAR_OUTPUT_DIR/config.json" <<EOF
{
  "version": "$CLIENT_VERSION",
  "web_host": "localhost",
  "web_port": 80,
  "game_port": 43594
}
EOF
printf 'Manifest-Version: 1.0\nImplementation-Version: %s\nBuild-Time: %s\n\n' "$CLIENT_VERSION" "$BUILD_TIME" > "$JAR_OUTPUT_DIR/manifest.mf"

# Build the updater jar first, then fold it into the client classes so it ships
# *inside* the client jar. At runtime the client extracts it back beside itself.
jar --create --file "$JAR_OUTPUT_DIR/Progressive-Java-Updater.jar" \
    --main-class com.gradwahl.rs254.update.UpdateHelper \
    -C "$CLASSES_DIR" com/gradwahl/rs254/update

cp "$JAR_OUTPUT_DIR/Progressive-Java-Updater.jar" "$CLASSES_DIR/Progressive-Java-Updater.jar"

jar --create --file "$JAR_OUTPUT_DIR/Progressive-Java-Client.jar" \
    --main-class com.gradwahl.rs254.Main \
    --manifest "$JAR_OUTPUT_DIR/manifest.mf" \
    -C "$CLASSES_DIR" .

rm "$JAR_OUTPUT_DIR/manifest.mf"

echo "Build complete: Jar Output/Progressive-Java-Client.jar"
echo "Build complete: Jar Output/Progressive-Java-Updater.jar"

if [ "${SKIP_JPACKAGE:-0}" != "1" ]; then
    rm -rf "$PACKAGE_INPUT_DIR"
    mkdir -p "$PACKAGE_INPUT_DIR"
    cp "$JAR_OUTPUT_DIR/Progressive-Java-Client.jar" "$PACKAGE_INPUT_DIR/"
    cp "$JAR_OUTPUT_DIR/Progressive-Java-Updater.jar" "$PACKAGE_INPUT_DIR/"
    cp "$JAR_OUTPUT_DIR/config.json" "$PACKAGE_INPUT_DIR/"

    rm -rf "$EXE_OUTPUT_DIR"
    mkdir -p "$EXE_OUTPUT_DIR"

    JPACKAGE_ARGS=(
        --type app-image
        --name "Progressive Java Client"
        --app-version "${CLIENT_VERSION:-1.7}"
        --vendor "Gradwahl"
        --description "Progressive Java Client"
        --dest "$EXE_OUTPUT_DIR"
        --input "$PACKAGE_INPUT_DIR"
        --main-jar Progressive-Java-Client.jar
        --arguments "10 0 highmem members 32"
        --java-options "-Xmx1g"
        --java-options "-Drs254.logDir=logs"
        --java-options "-XX:ErrorFile=logs/jvm_crash_%p.log"
        --java-options "--enable-native-access=ALL-UNNAMED"
        --java-options "--add-opens=java.base/java.lang=ALL-UNNAMED"
        --java-options "--add-opens=java.base/java.lang.reflect=ALL-UNNAMED"
    )

    case "$(uname -s)" in
        MINGW*|MSYS*|CYGWIN*)
            JPACKAGE_ARGS+=(--icon src/main/resources/icon.ico)
            ;;
    esac

    jpackage "${JPACKAGE_ARGS[@]}"
    echo "Packaged Progressive Java Client into Exe Output using jpackage type 'app-image'."
fi

echo "Run with: ./run.sh"