Add build-jres.sh script for minimal JRE creation and update packr configs

- Creates minimal JREs (~50MB vs ~300MB) using jlink
- Downloads Corretto JDKs for specified Java version
- Supports linux-x64, windows-x64, macos-x64, macos-arm64
- Note: Windows ARM64 not available from Corretto
- Updates all packr configs to use minimal JREs
- Adds macOS ARM64 build configs

desktop/build-jres.sh

@@ -0,0 +1,241 @@
+#!/bin/bash
+
+set -e
+
+JAVA_VERSION="${1:-11}"
+JVM_DIR="$(cd "$(dirname "$0")/jvms" && pwd)"
+MODULES="java.base,java.desktop,java.logging,java.sql,java.xml,java.naming,java.management,jdk.unsupported"
+
+CORRETTO_BASE_URL="https://corretto.aws/downloads/latest"
+
+build_linux_x64() {
+    local platform="linux-x64"
+    local url="${CORRETTO_BASE_URL}/amazon-corretto-${JAVA_VERSION}-x64-linux-jdk.tar.gz"
+    local archive="${JVM_DIR}/corretto${JAVA_VERSION}-${platform}.tar.gz"
+    local extract_dir="${JVM_DIR}/tmp-${platform}"
+    local jre_dir="${JVM_DIR}/jre-${platform}"
+    
+    echo "=== Building $platform ==="
+    
+    echo "Downloading..."
+    curl -L -o "$archive" "$url"
+    
+    echo "Extracting..."
+    rm -rf "$extract_dir" "$jre_dir"
+    mkdir -p "$extract_dir"
+    tar -xzf "$archive" -C "$extract_dir" --strip-components=1
+    
+    echo "Creating minimal JRE..."
+    "$extract_dir/bin/jlink" \
+        --no-header-files \
+        --no-man-pages \
+        --compress=2 \
+        --add-modules "$MODULES" \
+        --output "$jre_dir"
+    
+    rm -rf "$extract_dir"
+    
+    echo "Done: $(du -sh "$jre_dir" | cut -f1)"
+    echo ""
+}
+
+build_windows_x64() {
+    local platform="windows-x64"
+    local url="${CORRETTO_BASE_URL}/amazon-corretto-${JAVA_VERSION}-x64-windows-jdk.zip"
+    local archive="${JVM_DIR}/corretto${JAVA_VERSION}-${platform}.zip"
+    local extract_dir="${JVM_DIR}/tmp-${platform}"
+    local jre_dir="${JVM_DIR}/jre-${platform}"
+    local host_jdk="${JVM_DIR}/tmp-linux-x64"
+    
+    echo "=== Building $platform ==="
+    
+    if [ ! -d "$host_jdk" ]; then
+        echo "Downloading host JDK for jlink..."
+        local host_archive="${JVM_DIR}/corretto${JAVA_VERSION}-linux-x64.tar.gz"
+        curl -L -o "$host_archive" "${CORRETTO_BASE_URL}/amazon-corretto-${JAVA_VERSION}-x64-linux-jdk.tar.gz"
+        mkdir -p "$host_jdk"
+        tar -xzf "$host_archive" -C "$host_jdk" --strip-components=1
+    fi
+    
+    echo "Downloading..."
+    curl -L -o "$archive" "$url"
+    
+    echo "Extracting..."
+    rm -rf "$extract_dir" "$jre_dir"
+    mkdir -p "$extract_dir"
+    unzip -q "$archive" -d "$extract_dir"
+    
+    local jdk_dir=$(find "$extract_dir" -maxdepth 1 -type d -name "jdk*" | head -1)
+    local jmods_path="$jdk_dir/jmods"
+    
+    echo "Creating minimal JRE..."
+    "$host_jdk/bin/jlink" \
+        --no-header-files \
+        --no-man-pages \
+        --compress=2 \
+        --add-modules "$MODULES" \
+        --module-path "$jmods_path" \
+        --output "$jre_dir"
+    
+    rm -rf "$extract_dir"
+    
+    echo "Done: $(du -sh "$jre_dir" | cut -f1)"
+    echo ""
+}
+
+build_windows_arm64() {
+    echo "=== Building windows-arm64 ==="
+    echo "ERROR: Windows ARM64 JDK is not available from Amazon Corretto"
+    echo "Skipping..."
+    echo ""
+}
+
+build_macos_x64() {
+    local platform="macos-x64"
+    local url="${CORRETTO_BASE_URL}/amazon-corretto-${JAVA_VERSION}-x64-macos-jdk.tar.gz"
+    local archive="${JVM_DIR}/corretto${JAVA_VERSION}-${platform}.tar.gz"
+    local extract_dir="${JVM_DIR}/tmp-${platform}"
+    local jre_dir="${JVM_DIR}/jre-${platform}"
+    local host_jdk="${JVM_DIR}/tmp-linux-x64"
+    
+    echo "=== Building $platform ==="
+    
+    if [ ! -d "$host_jdk" ]; then
+        echo "Downloading host JDK for jlink..."
+        local host_archive="${JVM_DIR}/corretto${JAVA_VERSION}-linux-x64.tar.gz"
+        curl -L -o "$host_archive" "${CORRETTO_BASE_URL}/amazon-corretto-${JAVA_VERSION}-x64-linux-jdk.tar.gz"
+        mkdir -p "$host_jdk"
+        tar -xzf "$host_archive" -C "$host_jdk" --strip-components=1
+    fi
+    
+    echo "Downloading..."
+    curl -L -o "$archive" "$url"
+    
+    echo "Extracting..."
+    rm -rf "$extract_dir" "$jre_dir"
+    mkdir -p "$extract_dir"
+    tar -xzf "$archive" -C "$extract_dir"
+    
+    local jdk_dir=$(find "$extract_dir" -maxdepth 1 -type d -name "jdk*" -o -name "amazon-corretto*" | head -1)
+    local jmods_path="$jdk_dir/Contents/Home/jmods"
+    
+    if [ ! -d "$jmods_path" ]; then
+        jmods_path="$jdk_dir/jmods"
+    fi
+    
+    echo "Creating minimal JRE..."
+    "$host_jdk/bin/jlink" \
+        --no-header-files \
+        --no-man-pages \
+        --compress=2 \
+        --add-modules "$MODULES" \
+        --module-path "$jmods_path" \
+        --output "$jre_dir"
+    
+    rm -rf "$extract_dir"
+    
+    echo "Done: $(du -sh "$jre_dir" | cut -f1)"
+    echo ""
+}
+
+build_macos_arm64() {
+    local platform="macos-arm64"
+    local url="${CORRETTO_BASE_URL}/amazon-corretto-${JAVA_VERSION}-aarch64-macos-jdk.tar.gz"
+    local archive="${JVM_DIR}/corretto${JAVA_VERSION}-${platform}.tar.gz"
+    local extract_dir="${JVM_DIR}/tmp-${platform}"
+    local jre_dir="${JVM_DIR}/jre-${platform}"
+    local host_jdk="${JVM_DIR}/tmp-linux-x64"
+    
+    echo "=== Building $platform ==="
+    
+    if [ ! -d "$host_jdk" ]; then
+        echo "Downloading host JDK for jlink..."
+        local host_archive="${JVM_DIR}/corretto${JAVA_VERSION}-linux-x64.tar.gz"
+        curl -L -o "$host_archive" "${CORRETTO_BASE_URL}/amazon-corretto-${JAVA_VERSION}-x64-linux-jdk.tar.gz"
+        mkdir -p "$host_jdk"
+        tar -xzf "$host_archive" -C "$host_jdk" --strip-components=1
+    fi
+    
+    echo "Downloading..."
+    curl -L -o "$archive" "$url"
+    
+    echo "Extracting..."
+    rm -rf "$extract_dir" "$jre_dir"
+    mkdir -p "$extract_dir"
+    tar -xzf "$archive" -C "$extract_dir"
+    
+    local jdk_dir=$(find "$extract_dir" -maxdepth 1 -type d -name "jdk*" -o -name "amazon-corretto*" | head -1)
+    local jmods_path="$jdk_dir/Contents/Home/jmods"
+    
+    if [ ! -d "$jmods_path" ]; then
+        jmods_path="$jdk_dir/jmods"
+    fi
+    
+    echo "Creating minimal JRE..."
+    "$host_jdk/bin/jlink" \
+        --no-header-files \
+        --no-man-pages \
+        --compress=2 \
+        --add-modules "$MODULES" \
+        --module-path "$jmods_path" \
+        --output "$jre_dir"
+    
+    rm -rf "$extract_dir"
+    
+    echo "Done: $(du -sh "$jre_dir" | cut -f1)"
+    echo ""
+}
+
+main() {
+    mkdir -p "$JVM_DIR"
+    
+    local target="${2:-all}"
+    
+    echo "Building JREs for Java $JAVA_VERSION"
+    echo "Modules: $MODULES"
+    echo "Target: $target"
+    echo ""
+    
+    case "$target" in
+        linux-x64)
+            build_linux_x64
+            ;;
+        windows-x64)
+            build_windows_x64
+            ;;
+        windows-arm64)
+            build_windows_arm64
+            ;;
+        macos-x64)
+            build_macos_x64
+            ;;
+        macos-arm64)
+            build_macos_arm64
+            ;;
+        all)
+            build_linux_x64
+            build_windows_x64
+            build_macos_x64
+            build_macos_arm64
+            ;;
+        *)
+            echo "Unknown target: $target"
+            echo "Valid targets: linux-x64, windows-x64, macos-x64, macos-arm64, all"
+            echo "Note: windows-arm64 is not available from Corretto"
+            exit 1
+            ;;
+    esac
+    
+    echo "=== Summary ==="
+    for platform in linux-x64 windows-x64 macos-x64 macos-arm64; do
+        local jre_dir="${JVM_DIR}/jre-${platform}"
+        if [ -d "$jre_dir" ]; then
+            local size=$(du -sh "$jre_dir" | cut -f1)
+            echo "$platform: $size"
+        fi
+    done
+    
+    rm -rf "${JVM_DIR}/tmp-linux-x64"
+}
+
+main "$@"

desktop/build-linux-64-steam.json

@@ -1,11 +1,10 @@
 {
     "platform": "linux64",
     "vmargs": ["-Duse-repl=false", "-Dui_scale=1.0", "-Dclojure.compiler.direct-linking=true", "-Dis-desktop=true", "-Dplatform=desktop"],
-    "jdk": "./jvms/corretto11-linux.tar.gz",
+    "jdk": "./jvms/jre-linux-x64",
     "executable": "Tick's Tales", 
     "classpath": ["target/advent-standalone.jar"],
     "mainclass": "advent.core.desktop_launcher",
     "resources": ["steam_appid.txt", "resources/icon"],
-    "minimizejre": "soft",
     "output": "target/linux/amd64"
 }

desktop/build-linux-64.json

@@ -1,11 +1,10 @@
 {
     "platform": "linux64",
     "vmargs": ["-Duse-repl=false", "-Dui_scale=1.0", "-Dno-steam=true", "-Dclojure.compiler.direct-linking=true", "-Dis-desktop=true", "-Dplatform=desktop"],
-    "jdk": "./jvms/corretto11-linux.tar.gz",
+    "jdk": "./jvms/jre-linux-x64",
     "executable": "Tick's Tales", 
     "classpath": ["target/advent-standalone.jar"],
     "mainclass": "advent.core.desktop_launcher",
     "resources": ["steam_appid.txt", "resources/icon"],
-    "minimizejre": "soft",
     "output": "target/linux/amd64"
 }

desktop/build-osx-arm64-steam.json

@@ -0,0 +1,12 @@
+{
+    "platform": "mac",
+    "jdk": "./jvms/jre-macos-arm64",
+    "executable": "Tick's Tales", 
+    "vmargs": ["-Duse-repl=false", "-Dui_scale=1.0", "-Dclojure.compiler.direct-linking=true", "-Dis-desktop=true", "-Dplatform=desktop", "-XstartOnFirstThread"],
+    "classpath": ["target/advent-standalone.jar"],
+    "mainclass": "advent.core.desktop_launcher",
+    "resources": ["resources/icon", "steam_appid.txt"],
+    "output": "target/osx-arm64/Tick's Tales.app",
+    "bundle": "com.tickstales.upallknight",
+    "verbose": true
+}

desktop/build-osx-arm64.json

@@ -0,0 +1,12 @@
+{
+    "platform": "mac",
+    "jdk": "./jvms/jre-macos-arm64",
+    "executable": "Tick's Tales", 
+    "vmargs": ["-Duse-repl=false", "-Dui_scale=1.0", "-Dno-steam=true", "-Dclojure.compiler.direct-linking=true", "-Dis-desktop=true", "-Dplatform=desktop", "-XstartOnFirstThread"],
+    "classpath": ["target/advent-standalone.jar"],
+    "mainclass": "advent.core.desktop_launcher",
+    "resources": ["resources/icon", "steam_appid.txt"],
+    "output": "target/osx-arm64/Tick's Tales.app",
+    "bundle": "com.tickstales.upallknight",
+    "verbose": true
+}

desktop/build-osx-steam.json

@@ -1,12 +1,11 @@
 {
     "platform": "mac",
-    "jdk": "./jvms/corretto11-macos.tar.gz",
+    "jdk": "./jvms/jre-macos-x64",
     "executable": "Tick's Tales", 
     "vmargs": ["-Duse-repl=false", "-Dui_scale=1.0", "-Dclojure.compiler.direct-linking=true", "-Dis-desktop=true", "-Dplatform=desktop", "-XstartOnFirstThread"],
     "classpath": ["target/advent-standalone.jar"],
     "mainclass": "advent.core.desktop_launcher",
     "resources": ["resources/icon", "steam_appid.txt"],
-    "minimizejre": "soft",
     "output": "target/osx/Tick's Tales.app",
     "bundle": "com.tickstales.upallknight",
     "verbose": true

desktop/build-osx.json

@@ -1,12 +1,11 @@
 {
     "platform": "mac",
-    "jdk": "./jvms/corretto11-macos.tar.gz",
+    "jdk": "./jvms/jre-macos-x64",
     "executable": "Tick's Tales", 
     "vmargs": ["-Duse-repl=false", "-Dui_scale=1.0", "-Dno-steam=true", "-Dclojure.compiler.direct-linking=true", "-Dis-desktop=true", "-Dplatform=desktop", "-XstartOnFirstThread"],
     "classpath": ["target/advent-standalone.jar"],
     "mainclass": "advent.core.desktop_launcher",
     "resources": ["resources/icon", "steam_appid.txt"],
-    "minimizejre": "soft",
     "output": "target/osx/Tick's Tales.app",
     "bundle": "com.tickstales.upallknight",
     "verbose": true

desktop/build-windows-steam.json

@@ -1,11 +1,10 @@
 {
     "platform": "windows64",
     "vmargs": ["-Duse-repl=false", "-Dui_scale=1.0", "-Dclojure.compiler.direct-linking=true", "-Dis-desktop=true", "-Dplatform=desktop"],
-    "jdk": "./jvms/corretto11-windows.zip",
+    "jdk": "./jvms/jre-windows-x64",
     "executable": "TicksTales",
     "mainclass": "advent.core.desktop_launcher",
     "resources": ["steam_appid.txt", "resources/icon"],
     "classpath": ["target/advent-standalone.jar"],
-    "minimizejre": "soft",
     "output": "target/windows/"
 }

desktop/build-windows.json

@@ -1,11 +1,10 @@
 {
     "platform": "windows64",
     "vmargs": ["-Duse-repl=false", "-Dui_scale=1.0", "-Dno-steam=true", "-Dclojure.compiler.direct-linking=true", "-Dis-desktop=true", "-Dplatform=desktop"],
-    "jdk": "./jvms/corretto11-windows.zip",
+    "jdk": "./jvms/jre-windows-x64",
     "executable": "TicksTales",
     "mainclass": "advent.core.desktop_launcher",
     "resources": ["steam_appid.txt", "resources/icon"],
     "classpath": ["target/advent-standalone.jar"],
-    "minimizejre": "soft",
     "output": "target/windows/"
 }