Use Gradle version catalog

build.gradle.kts

@@ -1,29 +1,31 @@
 plugins {
     java
-    kotlin("jvm")
-    id("com.diffplug.spotless") version "6.25.0"
+    alias(libs.plugins.kotlin.jvm)
+    alias(libs.plugins.spotless)
 }
 
 val springBootProjects = subprojects.filter {
     it.name.startsWith("spring-boot") || it.name == "jpetstore"
 }
 
-val ktlintVersion: String by project
+// Retain a reference to rootProject.libs to make the version catalog accessible within allprojects and subprojects.
+// See https://github.com/gradle/gradle/issues/16708
+val catalog = libs
 
 allprojects {
     apply(plugin = "base")
-    apply(plugin = "com.diffplug.spotless")
+    apply(plugin = catalog.plugins.spotless.get().pluginId)
 
     spotless {
         kotlin {
-            ktlint(ktlintVersion)
+            ktlint(catalog.ktlint.get().version)
             targetExclude("build/**")
             if (project.name == "codegen") {
                 targetExclude("src/**")
             }
         }
         kotlinGradle {
-            ktlint(ktlintVersion)
+            ktlint(catalog.ktlint.get().version)
         }
     }
 
@@ -46,8 +48,8 @@ subprojects {
         testImplementation(kotlin("test"))
         if (project !in springBootProjects) {
             testImplementation(kotlin("test"))
-            testImplementation("org.junit.jupiter:junit-jupiter-api:5.11.3")
-            testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.11.3")
+            testImplementation(catalog.junit.api)
+            testRuntimeOnly(catalog.junit.engine)
         }
     }
 

codegen/build.gradle.kts

@@ -3,26 +3,27 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath(platform("org.testcontainers:testcontainers-bom:1.20.4"))
-        classpath("org.testcontainers:mysql")
-        classpath("org.testcontainers:postgresql")
-        classpath("mysql:mysql-connector-java:8.0.33")
-        classpath("org.postgresql:postgresql:42.7.4")
+        classpath(platform(libs.testcontainers.bom))
+        classpath(libs.testcontainers.mysql)
+        classpath(libs.testcontainers.postgresql)
+        classpath(libs.jdbc.mysql)
+        classpath(libs.jdbc.postgresql)
     }
 }
 
 plugins {
     application
-    idea
-    id("com.google.devtools.ksp")
-    id("org.komapper.gradle")
+    alias(libs.plugins.ksp)
+    alias(libs.plugins.komapper)
 }
 
-val komapperVersion: String by project
-
 dependencies {
-    implementation("org.komapper:komapper-starter-jdbc:$komapperVersion")
-    ksp("org.komapper:komapper-processor:$komapperVersion")
+    platform(libs.komapper.platform).let {
+        implementation(it)
+        ksp(it)
+    }
+    implementation(libs.komapper.starter.jdbc)
+    ksp(libs.komapper.processor)
 }
 
 komapper {

comparison-with-exposed/build.gradle.kts

@@ -1,23 +1,20 @@
 plugins {
     application
-    idea
-    id("com.google.devtools.ksp")
+    alias(libs.plugins.ksp)
 }
 
-val komapperVersion: String by project
-
 application {
     mainClass.set("org.komapper.example.ApplicationKt")
 }
 
 dependencies {
-    platform("org.komapper:komapper-platform:$komapperVersion").let {
+    platform(libs.komapper.platform).let {
         implementation(it)
         ksp(it)
     }
-    implementation("org.komapper:komapper-starter-jdbc")
-    implementation("org.komapper:komapper-dialect-h2-jdbc")
-    ksp("org.komapper:komapper-processor")
+    implementation(libs.komapper.starter.jdbc)
+    implementation(libs.komapper.dialect.h2.jdbc)
+    ksp(libs.komapper.processor)
 }
 
 ksp {

console-jdbc/build.gradle.kts

@@ -1,19 +1,16 @@
 plugins {
     application
-    idea
-    id("com.google.devtools.ksp")
+    alias(libs.plugins.ksp)
 }
 
-val komapperVersion: String by project
-
 dependencies {
-    platform("org.komapper:komapper-platform:$komapperVersion").let {
+    platform(libs.komapper.platform).let {
         implementation(it)
         ksp(it)
     }
-    implementation("org.komapper:komapper-starter-jdbc")
-    implementation("org.komapper:komapper-dialect-h2-jdbc")
-    ksp("org.komapper:komapper-processor")
+    implementation(libs.komapper.starter.jdbc)
+    implementation(libs.komapper.dialect.h2.jdbc)
+    ksp(libs.komapper.processor)
 }
 
 application {

console-r2dbc/build.gradle.kts

@@ -1,19 +1,16 @@
 plugins {
     application
-    idea
-    id("com.google.devtools.ksp")
+    alias(libs.plugins.ksp)
 }
 
-val komapperVersion: String by project
-
 dependencies {
-    platform("org.komapper:komapper-platform:$komapperVersion").let {
+    platform(libs.komapper.platform).let {
         implementation(it)
         ksp(it)
     }
-    implementation("org.komapper:komapper-starter-r2dbc")
-    implementation("org.komapper:komapper-dialect-h2-r2dbc")
-    ksp("org.komapper:komapper-processor")
+    implementation(libs.komapper.starter.r2dbc)
+    implementation(libs.komapper.dialect.h2.r2dbc)
+    ksp(libs.komapper.processor)
 }
 
 application {

gradle.properties

@@ -5,12 +5,3 @@ ksp.useKSP2=true
 
 group=org.komapper
 version=0.0.1
-
-ktorVersion=3.0.1
-kotlinVersion=2.1.0
-komapperVersion=5.0.0
-kspVersion=1.0.28
-ktlintVersion=1.4.1
-quarkusVersion=3.17.2
-springBootVersion=3.4.0
-nativeBuildToolsVersion=0.10.3

gradle/libs.versions.toml

@@ -0,0 +1,82 @@
+[versions]
+junit = "5.11.3"
+komapper = "5.0.0"
+kotlin = "2.1.0"
+ksp = "2.1.0-1.0.29"
+quarkus = "3.17.2"
+spring-boot = "3.4.0"
+
+[libraries]
+komapper-platform = { module = "org.komapper:komapper-platform", version.ref = "komapper" }
+komapper-dialect-h2-jdbc = { module = "org.komapper:komapper-dialect-h2-jdbc" }
+komapper-dialect-h2-r2dbc = { module = "org.komapper:komapper-dialect-h2-r2dbc" }
+komapper-dialect-postgresql-jdbc = { module = "org.komapper:komapper-dialect-postgresql-jdbc" }
+komapper-processor = { module = "org.komapper:komapper-processor" }
+komapper-quarkus-jdbc = { module = "org.komapper:komapper-quarkus-jdbc" }
+komapper-starter-jdbc = { module = "org.komapper:komapper-starter-jdbc" }
+komapper-starter-r2dbc = { module = "org.komapper:komapper-starter-r2dbc" }
+komapper-spring-boot-starter-jdbc = { module = "org.komapper:komapper-spring-boot-starter-jdbc" }
+komapper-spring-boot-starter-r2dbc = { module = "org.komapper:komapper-spring-boot-starter-r2dbc" }
+
+spring-boot-devtools = { module = "org.springframework.boot:spring-boot-devtools" }
+spring-boot-starter-security = { module = "org.springframework.boot:spring-boot-starter-security" }
+spring-boot-starter-test = { module = "org.springframework.boot:spring-boot-starter-test" }
+spring-boot-starter-thymeleaf = { module = "org.springframework.boot:spring-boot-starter-thymeleaf" }
+spring-boot-starter-validation = { module = "org.springframework.boot:spring-boot-starter-validation" }
+spring-boot-starter-web = { module = "org.springframework.boot:spring-boot-starter-web" }
+spring-boot-starter-webflux = { module = "org.springframework.boot:spring-boot-starter-webflux" }
+thymeleaf-extras-springsecurity6 = { module = "org.thymeleaf.extras:thymeleaf-extras-springsecurity6" }
+jackson-module-kotlin = { module = "com.fasterxml.jackson.module:jackson-module-kotlin" }
+
+ktor-bom = { module = "io.ktor:ktor-bom", version = "3.0.1" }
+ktor-server-netty = { module = "io.ktor:ktor-server-netty" }
+ktor-server-freemarker = { module = "io.ktor:ktor-server-freemarker" }
+ktor-server-resources = { module = "io.ktor:ktor-server-resources" }
+ktor-server-sessions = { module = "io.ktor:ktor-server-sessions" }
+ktor-server-conditional-headers = { module = "io.ktor:ktor-server-conditional-headers" }
+ktor-server-default-headers = { module = "io.ktor:ktor-server-default-headers" }
+ktor-server-partial-content = { module = "io.ktor:ktor-server-partial-content" }
+ktor-server-call-logging = { module = "io.ktor:ktor-server-call-logging" }
+ktor-server-test-host = { module = "io.ktor:ktor-server-test-host" }
+
+quarkus-bom = { module = "io.quarkus:quarkus-bom", version.ref = "quarkus" }
+quarkus-jdbc-h2 = { module = "io.quarkus:quarkus-jdbc-h2" }
+quarkus-jdbc-postgresql = { module = "io.quarkus:quarkus-jdbc-postgresql" }
+quarkus-junit5 = { module = "io.quarkus:quarkus-junit5" }
+quarkus-kotlin = { module = "io.quarkus:quarkus-kotlin" }
+quarkus-resteasy = { module = "io.quarkus:quarkus-resteasy" }
+quarkus-resteasy-jsonb = { module = "io.quarkus:quarkus-resteasy-jsonb" }
+
+testcontainers-bom = { module = "org.testcontainers:testcontainers-bom", version = "1.20.4" }
+testcontainers-mysql = { module = "org.testcontainers:mysql" }
+testcontainers-postgresql = { module = "org.testcontainers:postgresql" }
+
+freemarker = { module = "org.freemarker:freemarker", version = "2.3.33" }
+freemarker-java8 = { module = "no.api.freemarker:freemarker-java8", version = "3.0.0" }
+jdbc-h2 = { module = "com.h2database:h2", version = "2.3.232" }
+jdbc-mysql = { module = "mysql:mysql-connector-java", version = "8.0.33" }
+jdbc-postgresql = { module = "org.postgresql:postgresql", version = "42.7.4" }
+ktlint = { module = "com.pinterest.ktlint:ktlint-cli", version = "1.4.1" }
+logback-classic = { module = "ch.qos.logback:logback-classic", version = "1.5.12" }
+mockk = { module = "io.mockk:mockk", version = "1.13.13" }
+rest-assured = { module = "io.rest-assured:rest-assured", version="5.5.0" }
+thymeleaf-layout-dialect = { module = "nz.net.ultraq.thymeleaf:thymeleaf-layout-dialect", version = "3.3.0" }
+webjars-jquery = { module = "org.webjars:jquery", version = "3.7.1" }
+webjars-locator = { module = "org.webjars:webjars-locator", version = "0.52" }
+
+junit-api = { module = "org.junit.jupiter:junit-jupiter-api", version.ref = "junit" }
+junit-engine = { module = "org.junit.jupiter:junit-jupiter-engine", version.ref = "junit" }
+kotlin-test = { module = "org.jetbrains.kotlin:kotlin-test", version.ref = "kotlin" }
+
+[plugins]
+komapper = { id = "org.komapper.gradle", version.ref = "komapper" }
+ksp = { id = "com.google.devtools.ksp", version.ref = "ksp" }
+spotless = { id = "com.diffplug.spotless", version = "6.25.0" }
+spring-boot = { id = "org.springframework.boot", version.ref = "spring-boot" }
+spring-dependency-management = { id = "io.spring.dependency-management" }
+kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
+kotlin-spring = { id = "org.jetbrains.kotlin.plugin.spring", version.ref = "kotlin" }
+kotlin-allopen = { id = "org.jetbrains.kotlin.plugin.allopen", version.ref = "kotlin" }
+kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlin" }
+quarkus = { id = "io.quarkus", version.ref = "quarkus" }
+graalvm-buildtools-native = { id = "org.graalvm.buildtools.native", version = "0.10.3" }

jpetstore/build.gradle.kts

@@ -1,13 +1,10 @@
 plugins {
-    idea
-    id("org.springframework.boot")
-    id("com.google.devtools.ksp")
-    kotlin("plugin.spring")
+    alias(libs.plugins.spring.boot)
+    alias(libs.plugins.ksp)
+    alias(libs.plugins.kotlin.spring)
 }
 
-apply(plugin = "io.spring.dependency-management")
-
-val komapperVersion: String by project
+apply(plugin = libs.plugins.spring.dependency.management.get().pluginId)
 
 springBoot {
     mainClass.set("org.komapper.example.ApplicationKt")
@@ -20,26 +17,26 @@ repositories {
 }
 
 dependencies {
-    platform("org.komapper:komapper-platform:$komapperVersion").let {
+    platform(libs.komapper.platform).let {
         implementation(it)
         ksp(it)
     }
 
-    implementation("org.komapper:komapper-spring-boot-starter-jdbc")
-    implementation("org.komapper:komapper-dialect-h2-jdbc")
-    ksp("org.komapper:komapper-processor")
-
-    implementation("org.springframework.boot:spring-boot-starter-thymeleaf")
-    implementation("org.springframework.boot:spring-boot-starter-web")
-    implementation("org.springframework.boot:spring-boot-starter-security")
-    implementation("org.springframework.boot:spring-boot-starter-validation")
-    implementation("org.thymeleaf.extras:thymeleaf-extras-springsecurity6")
-    implementation("com.h2database:h2:2.3.232")
-    implementation("org.webjars:jquery:3.7.1")
-    implementation("org.webjars:webjars-locator:0.52")
-    implementation("nz.net.ultraq.thymeleaf:thymeleaf-layout-dialect:3.3.0")
-    developmentOnly("org.springframework.boot:spring-boot-devtools")
-    testImplementation("org.springframework.boot:spring-boot-starter-test") {
+    implementation(libs.komapper.spring.boot.starter.jdbc)
+    implementation(libs.komapper.dialect.h2.jdbc)
+    ksp(libs.komapper.processor)
+
+    implementation(libs.spring.boot.starter.thymeleaf)
+    implementation(libs.spring.boot.starter.web)
+    implementation(libs.spring.boot.starter.security)
+    implementation(libs.spring.boot.starter.validation)
+    implementation(libs.thymeleaf.extras.springsecurity6)
+    implementation(libs.jdbc.h2)
+    implementation(libs.webjars.jquery)
+    implementation(libs.webjars.locator)
+    implementation(libs.thymeleaf.layout.dialect)
+    developmentOnly(libs.spring.boot.devtools)
+    testImplementation(libs.spring.boot.starter.test) {
         exclude(group = "org.junit.vintage", module = "junit-vintage-engine")
     }
 }

kweet/build.gradle.kts

@@ -1,13 +1,9 @@
 plugins {
     application
-    idea
-    id("com.google.devtools.ksp")
-    id("org.jetbrains.kotlin.plugin.serialization")
+    alias(libs.plugins.ksp)
+    alias(libs.plugins.kotlin.serialization)
 }
 
-val ktorVersion: String by project
-val komapperVersion: String by project
-
 application {
     mainClass.set("io.ktor.server.netty.EngineMain")
 }
@@ -17,34 +13,34 @@ repositories {
 }
 
 dependencies {
-    platform("org.komapper:komapper-platform:$komapperVersion").let {
+    platform(libs.komapper.platform).let {
         implementation(it)
         ksp(it)
     }
-    platform("io.ktor:ktor-bom:$ktorVersion").let {
+    platform(libs.ktor.bom).let {
         implementation(it)
         testImplementation(it)
     }
 
-    implementation("org.komapper:komapper-starter-r2dbc")
-    implementation("org.komapper:komapper-dialect-h2-r2dbc")
-    ksp("org.komapper:komapper-processor")
-
-    implementation("io.ktor:ktor-server-netty")
-    implementation("io.ktor:ktor-server-freemarker")
-    implementation("io.ktor:ktor-server-resources")
-    implementation("io.ktor:ktor-server-sessions")
-    implementation("io.ktor:ktor-server-conditional-headers")
-    implementation("io.ktor:ktor-server-default-headers")
-    implementation("io.ktor:ktor-server-partial-content")
-    implementation("io.ktor:ktor-server-call-logging")
-    implementation("org.freemarker:freemarker:2.3.33")
-    implementation("no.api.freemarker:freemarker-java8:3.0.0")
-    runtimeOnly("ch.qos.logback:logback-classic:1.5.12")
-
-    testImplementation("io.ktor:ktor-server-test-host")
-    testImplementation("io.mockk:mockk:1.13.13")
-    testImplementation("org.jetbrains.kotlin:kotlin-test")
+    implementation(libs.komapper.starter.r2dbc)
+    implementation(libs.komapper.dialect.h2.r2dbc)
+    ksp(libs.komapper.processor)
+
+    implementation(libs.ktor.server.netty)
+    implementation(libs.ktor.server.freemarker)
+    implementation(libs.ktor.server.resources)
+    implementation(libs.ktor.server.sessions)
+    implementation(libs.ktor.server.conditional.headers)
+    implementation(libs.ktor.server.default.headers)
+    implementation(libs.ktor.server.partial.content)
+    implementation(libs.ktor.server.call.logging)
+    implementation(libs.freemarker)
+    implementation(libs.freemarker.java8)
+    runtimeOnly(libs.logback.classic)
+
+    testImplementation(libs.ktor.server.test.host)
+    testImplementation(libs.mockk)
+    testImplementation(libs.kotlin.test)
 }
 
 sourceSets {