Kotlin prototype

.github/workflows/ci-kotlin.yml

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+name: sqlc kotlin test suite
+on: [push, pull_request]
+jobs:
+
+  build:
+    name: Build And Test
+    runs-on: ubuntu-latest
+
+    services:
+      postgres:
+        image: postgres:11
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_DB: postgres
+        ports:
+          - 5432:5432
+        # needed because the postgres container does not provide a healthcheck
+        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
+
+    steps:
+      - uses: actions/checkout@master
+      - uses: actions/setup-java@v1
+        with:
+          java-version: 11
+      - uses: eskatos/gradle-command-action@v1
+        env:
+          PG_USER: postgres
+          PG_HOST: localhost
+          PG_DATABASE: postgres
+          PG_PASSWORD: postgres
+          PG_PORT: ${{ job.services.postgres.ports['5432'] }}
+        with:
+          build-root-directory: examples/kotlin
+          wrapper-directory: examples/kotlin
+          arguments: test --scan

examples/kotlin/.gitignore

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+/.gradle/
+/.idea/
+/build/
+/out/

examples/kotlin/README.md

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+# Kotlin examples
+
+This is a Kotlin gradle project configured to compile and test all examples. Currently tests have only been written for the `authors` example.
+
+To run tests:
+
+```shell script
+./gradlew clean test
+```
+
+The project can be easily imported into Intellij.
+
+1. Install Java if you don't already have it
+1. Download Intellij IDEA Community Edition
+1. In the "Welcome" modal, click "Import Project"
+1. Open the `build.gradle` file adjacent to this README file
+1. Wait for Intellij to sync the gradle modules and complete indexing

examples/kotlin/build.gradle

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+plugins {
+    id 'org.jetbrains.kotlin.jvm' version '1.3.60'
+}
+
+group 'com.example'
+version '1.0-SNAPSHOT'
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation 'org.postgresql:postgresql:42.2.9'
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
+    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.3.1'
+    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.3.1'
+}
+
+test {
+    useJUnitPlatform()
+}
+
+compileKotlin {
+    kotlinOptions.jvmTarget = "1.8"
+}
+compileTestKotlin {
+    kotlinOptions.jvmTarget = "1.8"
+}
+
+buildScan {
+    termsOfServiceUrl = "https://gradle.com/terms-of-service"
+    termsOfServiceAgree = "yes"
+}

examples/kotlin/gradle.properties

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+kotlin.code.style=official

examples/kotlin/gradle/wrapper/gradle-wrapper.properties

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+#Sat Jan 25 10:45:34 EST 2020
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME

examples/kotlin/settings.gradle

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+plugins {
+  id("com.gradle.enterprise").version("3.1.1")
+}
+
+rootProject.name = 'dbtest'