Initialize project structure

Author: ctruchi

.gitattributes

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+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# Linux start script should use lf
+/gradlew        text eol=lf
+
+# These are Windows script files and should use crlf
+*.bat           text eol=crlf
+
+# Binary files should be left untouched
+*.jar           binary
+

.github/workflows/check-solutions.yml

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+name: Check solutions
+
+on:
+  push:
+    branches: [ "*-solution" ]
+
+jobs:
+  check-solution:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+
+      - name: Set up Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Build
+        run: ./gradlew build

.gitignore

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+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+
+.idea
+
+.kotlin

gradle.properties

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+# This file was generated by the Gradle 'init' task.
+# https://docs.gradle.org/current/userguide/build_environment.html#sec:gradle_configuration_properties
+
+org.gradle.configuration-cache=true
+org.gradle.parallel=true
+org.gradle.caching=true

gradle/libs.versions.toml

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+[versions]
+junit = "5.10.1"
+strikt = "0.34.0"
+
+[libraries]
+junit-engine = { group = "org.junit.jupiter", name = "junit-jupiter-engine", version.ref = "junit"}
+junit-params = { group = "org.junit.jupiter", name = "junit-jupiter-params", version.ref = "junit"}
+strikt = { group = "io.strikt", name = "strikt-core", version.ref = "strikt" }

gradle/plugins/build.gradle.kts

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+plugins {
+    `kotlin-dsl`
+}
+
+repositories {
+    gradlePluginPortal()
+}
+
+dependencies {
+    implementation("org.jetbrains.kotlin.jvm:org.jetbrains.kotlin.jvm.gradle.plugin:2.0.21")
+
+    // It works. Trust !!
+    // https://github.com/gradle/gradle/issues/15383#issuecomment-779893192
+    implementation(files(libs.javaClass.superclass.protectionDomain.codeSource.location))
+}

gradle/plugins/settings.gradle.kts

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+// https://github.com/gradle/gradle/issues/15383#issuecomment-779893192
+dependencyResolutionManagement {
+    versionCatalogs {
+        create("libs") {
+            from(files("../libs.versions.toml"))
+        }
+    }
+}

gradle/plugins/src/main/kotlin/ProjectExt.kt

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+import org.gradle.accessors.dm.LibrariesForLibs
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.the
+
+val Project.libs get() = the<LibrariesForLibs>()

gradle/plugins/src/main/kotlin/fmt.kotlin.fundamentals.gradle.base.gradle.kts

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+plugins {
+    kotlin("jvm")
+}
+
+repositories {
+    mavenCentral()
+}
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(21)
+    }
+}

gradle/plugins/src/main/kotlin/fmt.kotlin.fundamentals.gradle.component.tp.gradle.kts

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+plugins {
+    id("fmt.kotlin.fundamentals.gradle.base")
+    id("fmt.kotlin.fundamentals.gradle.feature.test")
+}