buildscripts: move library version information to a version catalog

apps/build.gradle

@@ -47,19 +47,19 @@ if (!hasProperty('mainClass')) {
 jar.manifest.attributes('Main-Class': application.mainClass)
 
 dependencies {
-    implementation acorusCoordinates
-    implementation gsonCoordinates
-    implementation heartCoordinates
-    implementation wesCoordinates
+    implementation(libs.acorus)
+    implementation(libs.gson)
+    implementation(libs.heart)
+    implementation(libs.wes)
 
-    implementation 'org.jmonkeyengine:jme3-plugins:' + jme3Version
-    implementation 'org.jmonkeyengine:jme3-blender:3.3.2-stable'
-    runtimeOnly 'org.jmonkeyengine:jme3-desktop:' + jme3Version
-    runtimeOnly 'org.jmonkeyengine:jme3-lwjgl3:' + jme3Version
+    implementation(libs.jme3.plugins)
+    implementation(libs.jme3.blender)
+    runtimeOnly(libs.jme3.desktop)
+    runtimeOnly(libs.jme3.lwjgl3)
 
     // MonkeyWrench doesn't use jme3-jogg
     //  -- it is included solely to avoid warnings from AssetConfig.
-    runtimeOnly 'org.jmonkeyengine:jme3-jogg:' + jme3Version
+    runtimeOnly(libs.jme3.jogg)
 
     //implementation 'com.github.stephengold:MonkeyWrench:' + wrenchVersion // for the published library
     implementation project(':lib') // for latest sourcecode

build.gradle

@@ -10,23 +10,6 @@ ext {
 
     jmeTarget = '' // distinguish non-JME libraries built for specific JME releases
 
-    // module coordinates of external dependencies:
-    acorusCoordinates = 'com.github.stephengold:Acorus:2.0.0'
-    heartCoordinates = 'com.github.stephengold:Heart:9.0.0'
-    wesCoordinates = 'com.github.stephengold:Wes:0.8.1'
-
-    // production versions of libraries:
-    gsonCoordinates = 'com.google.code.gson:gson:2.9.1'
-    imageioVersion = '3.10.1'
-    //jme3Version = '3.6.1-stable'
-    //lwjglVersion = '3.3.2'
-
-    // advanced versions of libraries:
-    //gsonCoordinates = 'com.google.code.gson:gson:2.10.1'
-    jme3Version = '3.7.0-beta1'
-    lwjglVersion = '3.3.3'
-    //lwjglVersion = '3.3.4-SNAPSHOT'
-
     wrenchVersion = '0.6.1' + jmeTarget
 }
 

common.gradle

@@ -9,7 +9,7 @@ java {
 }
 
 checkstyle {
-    toolVersion '9.3'
+    toolVersion libs.versions.checkstyle.get()
 }
 
 tasks.withType(JavaCompile).configureEach { // Java compile-time options:

gradle/libs.versions.toml

@@ -0,0 +1,32 @@
+## TOML version catalog for the MonkeyWrench project
+
+[versions]
+checkstyle = "9.3"
+imageio = "3.10.1"
+
+## production versions:
+gson = "2.9.1"
+#jme = "3.6.1-stable"
+#lwjgl = '3.3.2'
+
+## advanced versions:
+#gson = "2.10.1"
+jme = "3.7.0-beta1"
+lwjgl = '3.3.3'
+#lwjgl = '3.3.4-SNAPSHOT'
+
+[libraries]
+acorus = { module = "com.github.stephengold:Acorus", version = "2.0.0" }
+gson = { module = "com.google.code.gson:gson", version.ref = "gson" }
+heart = { module = "com.github.stephengold:Heart", version = "9.0.0" }
+imageio-tga =  { module = "com.twelvemonkeys.imageio:imageio-tga", version.ref = "imageio" }
+imageio-webp = { module = "com.twelvemonkeys.imageio:imageio-webp", version.ref = "imageio" }
+jme3-blender = { module = "org.jmonkeyengine:jme3-blender", version = "3.3.2-stable" }
+jme3-desktop = { module = "org.jmonkeyengine:jme3-desktop", version.ref = "jme" }
+jme3-jogg = { module = "org.jmonkeyengine:jme3-jogg", version.ref = "jme" }
+jme3-lwjgl3 = { module = "org.jmonkeyengine:jme3-lwjgl3", version.ref = "jme" }
+jme3-plugins = { module = "org.jmonkeyengine:jme3-plugins", version.ref = "jme" }
+lwjgl-assimp = { module = "org.lwjgl:lwjgl-assimp", version.ref = "lwjgl" }
+wes = { module = "com.github.stephengold:Wes", version = "0.8.1" }
+
+[plugins]

lib/build.gradle

@@ -19,24 +19,23 @@ ext {
 }
 
 dependencies {
-    implementation heartCoordinates
-    implementation wesCoordinates
-    implementation 'org.jmonkeyengine:jme3-desktop:' + jme3Version
-    runtimeOnly 'org.jmonkeyengine:jme3-lwjgl3:' + jme3Version
+    implementation(libs.heart)
+    implementation(libs.wes)
+    implementation(libs.jme3.desktop)
+    runtimeOnly(libs.jme3.lwjgl3)
 
-    api "org.lwjgl:lwjgl-assimp:${lwjglVersion}"
-
-    runtimeOnly "org.lwjgl:lwjgl-assimp:${lwjglVersion}:natives-windows"
-    runtimeOnly "org.lwjgl:lwjgl-assimp:${lwjglVersion}:natives-windows-x86"
-    runtimeOnly "org.lwjgl:lwjgl-assimp:${lwjglVersion}:natives-linux"
-    runtimeOnly "org.lwjgl:lwjgl-assimp:${lwjglVersion}:natives-linux-arm32"
-    runtimeOnly "org.lwjgl:lwjgl-assimp:${lwjglVersion}:natives-linux-arm64"
-    runtimeOnly "org.lwjgl:lwjgl-assimp:${lwjglVersion}:natives-macos"
-    runtimeOnly "org.lwjgl:lwjgl-assimp:${lwjglVersion}:natives-macos-arm64"
+    api(libs.lwjgl.assimp)
+    runtimeOnly(variantOf(libs.lwjgl.assimp){classifier("natives-windows")})
+    runtimeOnly(variantOf(libs.lwjgl.assimp){classifier("natives-windows-x86")})
+    runtimeOnly(variantOf(libs.lwjgl.assimp){classifier("natives-linux")})
+    runtimeOnly(variantOf(libs.lwjgl.assimp){classifier("natives-linux-arm32")})
+    runtimeOnly(variantOf(libs.lwjgl.assimp){classifier("natives-linux-arm64")})
+    runtimeOnly(variantOf(libs.lwjgl.assimp){classifier("natives-macos")})
+    runtimeOnly(variantOf(libs.lwjgl.assimp){classifier("natives-macos-arm64")})
 
     // Add ImageIO support for the TGA and WebP file formats:
-    runtimeOnly 'com.twelvemonkeys.imageio:imageio-tga:' + imageioVersion
-    runtimeOnly 'com.twelvemonkeys.imageio:imageio-webp:' + imageioVersion
+    runtimeOnly(libs.imageio.tga)
+    runtimeOnly(libs.imageio.webp)
 }
 
 // Register publishing tasks: