Extract dependency versions to Versions object in buildSrc

.github/workflows/ci.yaml

@@ -19,7 +19,7 @@ jobs:
       - uses: actions/cache@v1
         with:
           path: ~/.gradle/caches
-          key: ${{ runner.os }}-gradle-caches-${{ hashFiles('**/*.gradle.kts') }} }}
+          key: ${{ runner.os }}-gradle-caches-${{ hashFiles('**/*.gradle.kts') }}-${{ hashFiles('buildSrc/src/main/kotlin/Versions.kt') }}
           restore-keys: |
             ${{ runner.os }}-gradle-caches-
 

build.gradle.kts

@@ -10,13 +10,13 @@ description = "A Result monad for modelling success or failure operations."
 
 plugins {
     base
-    id("com.github.ben-manes.versions") version "0.29.0"
+    id("com.github.ben-manes.versions") version Versions.versionsPlugin
 
-    kotlin("multiplatform") version "1.4.0" apply false
-    id("kotlinx.benchmark") version "0.2.0-dev-20" apply false
-    id("net.researchgate.release") version "2.8.1" apply false
-    id("org.jetbrains.dokka") version "0.10.1" apply false
-    id("org.jetbrains.kotlin.plugin.allopen") version "1.4.0" apply false
+    kotlin("multiplatform") version Versions.kotlin apply false
+    id("kotlinx.benchmark") version Versions.kotlinBenchmark apply false
+    id("net.researchgate.release") version Versions.releasePlugin apply false
+    id("org.jetbrains.dokka") version Versions.dokka apply false
+    id("org.jetbrains.kotlin.plugin.allopen") version Versions.kotlin apply false
 }
 
 tasks.withType<DependencyUpdatesTask> {

buildSrc/build.gradle.kts

@@ -0,0 +1,7 @@
+plugins {
+    `kotlin-dsl`
+}
+
+repositories {
+    mavenCentral()
+}

buildSrc/settings.gradle.kts

@@ -0,0 +1 @@
+rootProject.name = "buildSrc"

buildSrc/src/main/kotlin/Versions.kt

@@ -0,0 +1,10 @@
+object Versions {
+    const val dokka = "0.10.1"
+    const val kotlin = "1.4.0"
+    const val kotlinBenchmark = "0.2.0-dev-20"
+    const val kotlinCoroutines = "1.3.8"
+    const val ktor = "1.4.0"
+    const val logback = "1.2.3"
+    const val releasePlugin = "2.8.1"
+    const val versionsPlugin = "0.29.0"
+}

example/build.gradle.kts

@@ -15,14 +15,12 @@ repositories {
 }
 
 dependencies {
-    val ktorVersion = "1.4.0"
-
     implementation(project(":kotlin-result"))
     implementation(kotlin("stdlib-jdk8"))
-    implementation("ch.qos.logback:logback-classic:1.2.3")
-    implementation("io.ktor:ktor-server-core:$ktorVersion")
-    implementation("io.ktor:ktor-server-netty:$ktorVersion")
-    implementation("io.ktor:ktor-gson:$ktorVersion")
+    implementation("ch.qos.logback:logback-classic:${Versions.logback}")
+    implementation("io.ktor:ktor-server-core:${Versions.ktor}")
+    implementation("io.ktor:ktor-server-netty:${Versions.ktor}")
+    implementation("io.ktor:ktor-gson:${Versions.ktor}")
 }
 
 tasks.withType(KotlinCompile::class.java).all {

kotlin-result-coroutines/build.gradle.kts

@@ -16,7 +16,7 @@ kotlin {
         val commonMain by getting {
             dependencies {
                 implementation(kotlin("stdlib-common"))
-                implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core-native:1.3.8")
+                implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core-native:${Versions.kotlinCoroutines}")
                 implementation(project(":kotlin-result"))
             }
         }
@@ -25,7 +25,7 @@ kotlin {
             dependencies {
                 implementation(kotlin("test-common"))
                 implementation(kotlin("test-annotations-common"))
-                implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core-native:1.3.8")
+                implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core-native:${Versions.kotlinCoroutines}")
             }
         }
 
@@ -33,7 +33,7 @@ kotlin {
             dependencies {
                 implementation(kotlin("test-junit"))
                 implementation(kotlin("test"))
-                implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.8")
+                implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:${Versions.kotlinCoroutines}")
             }
         }
     }

kotlin-result/build.gradle.kts

@@ -67,7 +67,7 @@ kotlin {
         val jvmBenchmark by getting {
             dependsOn(jvmMain)
             dependencies {
-                implementation("org.jetbrains.kotlinx:kotlinx.benchmark.runtime-jvm:0.2.0-dev-8")
+                implementation("org.jetbrains.kotlinx:kotlinx.benchmark.runtime-jvm:${Versions.kotlinBenchmark}")
             }
         }
     }