Migrate to Gradle version catalog for dependency management

- Create gradle/libs.versions.toml with all dependency versions
- Update root and codegen build.gradle.kts to use version catalog
- Configure codegen module to reference parent version catalog
- Remove redundant plugin version declarations
- Centralize dependency version management for better maintainability

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: nakamura-to

build.gradle.kts

@@ -1,12 +1,11 @@
 import org.seasar.doma.gradle.codegen.desc.LanguageType
 
 plugins {
-    id("java")
-    id("org.jetbrains.kotlin.jvm") version "2.2.0"
-    id("org.domaframework.doma.compile") version "4.0.0"
+    java
+    alias(libs.plugins.kotlin.jvm)
+    alias(libs.plugins.doma.compile)
+    alias(libs.plugins.release)
     id("org.domaframework.doma.codegen")
-    id("com.nocwriter.runsql") version "1.0.3"
-    id("net.researchgate.release") version "3.1.0"
 }
 
 configure<net.researchgate.release.ReleaseExtension> {
@@ -27,24 +26,22 @@ repositories {
 }
 
 dependencies {
-    val domaVersion: String by project
-
-    implementation("org.seasar.doma:doma-core:$domaVersion")
-    annotationProcessor("org.seasar.doma:doma-processor:$domaVersion")
+    implementation(libs.doma.core)
+    annotationProcessor(libs.doma.processor)
 
     // Use JUnit BOM for version management
-    testImplementation(platform("org.junit:junit-bom:5.13.2"))
-    testImplementation("org.junit.jupiter:junit-jupiter-api")
-    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine")
-    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+    testImplementation(platform(libs.junit.bom))
+    testImplementation(libs.junit.jupiter.api)
+    testRuntimeOnly(libs.junit.jupiter.engine)
+    testRuntimeOnly(libs.junit.platform.launcher)
 
-    testRuntimeOnly(platform("org.testcontainers:testcontainers-bom:1.21.2"))
-    testRuntimeOnly("org.testcontainers:postgresql")
-    testRuntimeOnly("org.postgresql:postgresql:42.7.7")
+    testRuntimeOnly(platform(libs.testcontainers.bom))
+    testRuntimeOnly(libs.testcontainers.postgresql)
+    testRuntimeOnly(libs.postgresql)
 
-    domaCodeGen(platform("org.testcontainers:testcontainers-bom:1.21.2"))
-    domaCodeGen("org.testcontainers:postgresql")
-    domaCodeGen("org.postgresql:postgresql:42.7.7")
+    domaCodeGen(platform(libs.testcontainers.bom))
+    domaCodeGen(libs.testcontainers.postgresql)
+    domaCodeGen(libs.postgresql)
 }
 
 val initScript = file("init_postgresql.sql")

codegen/build.gradle.kts

@@ -1,8 +1,8 @@
 plugins {
-    id("groovy")
-    id("java-gradle-plugin")
-    id("com.diffplug.spotless") version "7.0.4"
-    id("com.gradle.plugin-publish") version "1.3.1"
+    groovy
+    `java-gradle-plugin`
+    alias(libs.plugins.spotless)
+    alias(libs.plugins.plugin.publish)
 }
 
 gradlePlugin {
@@ -32,7 +32,7 @@ sourceSets {
 
 spotless {
     java {
-        googleJavaFormat("1.23.0")
+        googleJavaFormat(libs.versions.googleJavaFormat.get())
     }
     groovy {
     }
@@ -50,15 +50,15 @@ repositories {
 }
 
 dependencies {
-    implementation("org.freemarker:freemarker:2.3.34")
-    testImplementation("org.seasar.doma:doma-core:3.9.1")
+    implementation(libs.freemarker)
+    testImplementation(libs.doma.core)
 
     // Use JUnit BOM for version management
-    testImplementation(platform("org.junit:junit-bom:5.13.2"))
-    testImplementation("org.junit.jupiter:junit-jupiter-api")
-    testImplementation("org.junit.jupiter:junit-jupiter-params")
-    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine")
-    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+    testImplementation(platform(libs.junit.bom))
+    testImplementation(libs.junit.jupiter.api)
+    testImplementation(libs.junit.jupiter.params)
+    testRuntimeOnly(libs.junit.jupiter.engine)
+    testRuntimeOnly(libs.junit.platform.launcher)
 }
 
 tasks {

codegen/settings.gradle.kts

@@ -1 +1,9 @@
 rootProject.name = "codegen"
+
+dependencyResolutionManagement {
+    versionCatalogs {
+        create("libs") {
+            from(files("../gradle/libs.versions.toml"))
+        }
+    }
+}

gradle/libs.versions.toml

@@ -0,0 +1,58 @@
+[versions]
+# Core dependencies
+doma = "3.9.1"
+freemarker = "2.3.34"
+postgresql = "42.7.7"
+
+# Testing
+junit = "5.13.2"
+testcontainers = "1.21.2"
+
+# Plugins
+kotlin = "2.2.0"
+domaCompile = "4.0.0"
+runsql = "1.0.3"
+release = "3.1.0"
+spotless = "7.0.4"
+pluginPublish = "1.3.1"
+
+# Code formatting
+googleJavaFormat = "1.23.0"
+
+[libraries]
+# Doma framework
+doma-core = { group = "org.seasar.doma", name = "doma-core", version.ref = "doma" }
+doma-processor = { group = "org.seasar.doma", name = "doma-processor", version.ref = "doma" }
+
+# Template engine
+freemarker = { group = "org.freemarker", name = "freemarker", version.ref = "freemarker" }
+
+# Database drivers
+postgresql = { group = "org.postgresql", name = "postgresql", version.ref = "postgresql" }
+
+# Testing - BOMs
+junit-bom = { group = "org.junit", name = "junit-bom", version.ref = "junit" }
+testcontainers-bom = { group = "org.testcontainers", name = "testcontainers-bom", version.ref = "testcontainers" }
+
+# Testing - Libraries (versions managed by BOMs)
+junit-jupiter-api = { group = "org.junit.jupiter", name = "junit-jupiter-api" }
+junit-jupiter-engine = { group = "org.junit.jupiter", name = "junit-jupiter-engine" }
+junit-jupiter-params = { group = "org.junit.jupiter", name = "junit-jupiter-params" }
+junit-platform-launcher = { group = "org.junit.platform", name = "junit-platform-launcher" }
+testcontainers-postgresql = { group = "org.testcontainers", name = "postgresql" }
+
+[plugins]
+# Kotlin
+kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
+
+# Doma
+doma-compile = { id = "org.domaframework.doma.compile", version.ref = "domaCompile" }
+
+# Release management
+release = { id = "net.researchgate.release", version.ref = "release" }
+
+# Code quality
+spotless = { id = "com.diffplug.spotless", version.ref = "spotless" }
+
+# Publishing
+plugin-publish = { id = "com.gradle.plugin-publish", version.ref = "pluginPublish" }