Initial implementation of code generation homework

.github/workflows/build.yml

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+name: Continuous Integration
+on:
+  push:
+    branches:
+      - '**'
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: 21
+          distribution: adopt
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+      - name: Check phase 1
+        run: ./gradlew build -PhomeworkStage=1
+      - name: Check phase 2
+        run: ./gradlew build -PhomeworkStage=2
+      - name: Check phase 3
+        run: ./gradlew build -PhomeworkStage=3
+      - name: Check phase 4
+        run: ./gradlew build -PhomeworkStage=4

.gitignore

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+*._trace
+.idea/
+.gradle/
+build/
+**/src/gen/

buildSrc/build.gradle.kts

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+import org.gradle.accessors.dm.LibrariesForLibs
+
+plugins {
+    `kotlin-dsl`
+}
+
+repositories {
+    mavenCentral()
+    gradlePluginPortal()
+}
+
+val libs = the<LibrariesForLibs>()
+
+dependencies {
+    // https://github.com/gradle/gradle/issues/15383
+    implementation(files(libs.javaClass.superclass.protectionDomain.codeSource.location))
+    implementation(libs.python.gradle.plugin)
+}

buildSrc/settings.gradle.kts

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+dependencyResolutionManagement {
+    versionCatalogs {
+        create("libs") {
+            from(files("../gradle/libs.versions.toml"))
+        }
+    }
+}

buildSrc/src/main/kotlin/hu/bme/mit/ase/gradle/conventions/generator.gradle.kts

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+package hu.bme.mit.ase.gradle.conventions
+
+import com.pswidersk.gradle.python.VenvTask
+import org.gradle.api.tasks.Sync
+import org.gradle.kotlin.dsl.getValue
+import org.gradle.kotlin.dsl.provideDelegate
+import org.gradle.kotlin.dsl.registering
+
+plugins {
+    id("hu.bme.mit.ase.gradle.conventions.jvm")
+    id("com.pswidersk.python-plugin")
+}
+
+val srcGenJava = "src/gen/java"
+
+sourceSets.main {
+    java.srcDir(srcGenJava)
+}
+
+val installPythonPackages by tasks.registering(VenvTask::class) {
+    venvExec = "pip3"
+
+    args = listOf(
+        "install",
+        "jinja2",
+    )
+}
+
+val syncGeneratorScripts by tasks.registering(Sync::class) {
+    from(rootProject.layout.projectDirectory.dir("python-scripts"))
+    into(project.layout.buildDirectory.dir("python-scripts"))
+}
+
+val syncModels by tasks.registering(Sync::class) {
+    from(rootProject.layout.projectDirectory.dir("models"))
+    into(project.layout.buildDirectory.dir("models"))
+}
+
+val syncTemplates by tasks.registering(Sync::class) {
+    from(rootProject.layout.projectDirectory.dir("jinja-templates"))
+    into(project.layout.buildDirectory.dir("jinja-templates"))
+}
+
+val generate by tasks.registering(VenvTask::class) {
+    inputs.files(syncGeneratorScripts.get().outputs)
+    inputs.files(syncModels.get().outputs)
+    inputs.files(syncTemplates.get().outputs)
+
+    dependsOn(installPythonPackages)
+
+    outputs.dir(srcGenJava)
+}
+
+tasks.compileJava {
+    inputs.files(generate.get().outputs)
+}
+
+tasks.clean {
+    delete(srcGenJava)
+}

buildSrc/src/main/kotlin/hu/bme/mit/ase/gradle/conventions/jvm.gradle.kts

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+package hu.bme.mit.ase.gradle.conventions
+
+import org.gradle.accessors.dm.LibrariesForLibs
+
+plugins {
+    `java-library`
+    `java-test-fixtures`
+    java
+}
+
+val libs = the<LibrariesForLibs>()
+
+repositories {
+    mavenCentral()
+}
+
+java.toolchain {
+    languageVersion.set(JavaLanguageVersion.of(21))
+}
+
+tasks {
+    test {
+        useJUnitPlatform()
+        testLogging.showStandardStreams = true
+    }
+}
+
+dependencies {
+    implementation(libs.slf4j.api)
+
+    runtimeOnly(libs.slf4j.log4j.impl)
+
+    testImplementation(libs.junit.jupiter.core)
+    testImplementation(libs.junit.jupiter.params)
+
+    testRuntimeOnly(libs.junit.jupiter.engine)
+}

gradle.properties

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+org.gradle.daemon=true
+org.gradle.jvmargs=-Xmx2048M
+org.gradle.parallel=true
+
+# Change the stage here to execute additional tests!
+homeworkStage=0

gradle/libs.versions.toml

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+# This file was generated by the Gradle 'init' task.
+# https://docs.gradle.org/current/userguide/platforms.html#sub::toml-dependencies-format
+
+[versions]
+slf4j = "1.7.25"
+log4j = "2.23.1"
+jUnit = "5.10.0"
+python-gradle-plugin = "2.7.3"
+
+[libraries]
+slf4j-api = { group = "org.slf4j", name = "slf4j-api", version.ref = "slf4j" }
+slf4j-log4j-impl = { group = "org.apache.logging.log4j", name = "log4j-slf4j-impl", version.ref = "log4j" }
+junit-jupiter-core = { group = "org.junit.jupiter", name = "junit-jupiter-api", version.ref = "jUnit" }
+junit-jupiter-engine = { group = "org.junit.jupiter", name = "junit-jupiter-engine", version.ref = "jUnit" }
+junit-jupiter-params = { group = "org.junit.jupiter", name = "junit-jupiter-params", version.ref = "jUnit" }
+python-gradle-plugin = { group = "com.pswidersk", name = "python-gradle-plugin", version.ref = "python-gradle-plugin" }