feat(backstage/logging): configure logback logging (#6)

components/api/backstage/app/src/main/kotlin/se/dansdata/backstage/app/App.kt

@@ -1,10 +1,8 @@
 package se.dansdata.backstage.app
 
-import org.apache.commons.text.WordUtils
-import se.dansdata.backstage.utilities.StringUtils
+import org.slf4j.LoggerFactory
 
 fun main() {
-    val tokens = StringUtils.split(MessageUtils.getMessage())
-    val result = StringUtils.join(tokens)
-    println(WordUtils.capitalize(result))
+    val logger = LoggerFactory.getLogger("se.dansdata.backstage.app.AppKt")
+    logger.info("Backstage initializing...")
 }

components/api/backstage/app/src/main/resources/logback.xml

@@ -0,0 +1,11 @@
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%date{STRICT,UTC,en-US} %level [%thread](%logger{36}\) - %msg%replace( [%kvp]){' \[\]', ''}%n</pattern>
+        </encoder>
+    </appender>
+
+    <root level="debug">
+        <appender-ref ref="STDOUT"/>
+    </root>
+</configuration>

components/api/backstage/buildSrc/build.gradle.kts

@@ -1,5 +1,4 @@
 plugins {
-    // Support convention plugins written in Kotlin. Convention plugins are build scripts in 'src/main' that automatically become available as plugins in the main build.
     `kotlin-dsl`
 }
 
@@ -12,4 +11,7 @@ dependencies {
     implementation(libs.kotlin.gradle.plugin)
     implementation(libs.ktfmt.gradle.plugin)
     implementation(libs.detekt.gradle.plugin)
+
+    // https://github.com/gradle/gradle/issues/15383
+    implementation(files(libs.javaClass.superclass.protectionDomain.codeSource.location))
 }

components/api/backstage/buildSrc/settings.gradle.kts

@@ -1,8 +1,5 @@
 dependencyResolutionManagement {
-    // Reuse version catalog from the main build.
-    versionCatalogs {
-        create("libs", { from(files("../gradle/libs.versions.toml")) })
-    }
+    versionCatalogs { create("libs") { from(files("../gradle/libs.versions.toml")) } }
 }
 
 rootProject.name = "buildSrc"

components/api/backstage/buildSrc/src/main/kotlin/buildlogic.kotlin-common-conventions.gradle.kts

@@ -1,6 +1,7 @@
-import com.ncorti.ktfmt.gradle.tasks.*
+import com.ncorti.ktfmt.gradle.tasks.KtfmtFormatTask
 import io.gitlab.arturbosch.detekt.Detekt
 import io.gitlab.arturbosch.detekt.DetektCreateBaselineTask
+import org.gradle.accessors.dm.LibrariesForLibs
 
 plugins {
     // Apply the org.jetbrains.kotlin.jvm Plugin to add support for Kotlin.
@@ -14,12 +15,17 @@ repositories {
     mavenCentral()
 }
 
+val libs = the<LibrariesForLibs>()
+
 dependencies {
     constraints {
         // Define dependency versions as constraints
         implementation("org.apache.commons:commons-text:1.11.0")
     }
 
+    implementation(libs.logback.core)
+    implementation(libs.logback.classic)
+
     // Use JUnit Jupiter for testing.
     testImplementation("org.junit.jupiter:junit-jupiter:5.10.2")
 

components/api/backstage/gradle/libs.versions.toml

@@ -1,9 +1,12 @@
 [versions]
 detekt-gradle-plugin = "1.23.7"
+logback = "1.5.8"
 kotlin-gradle-plugin = "1.9.22"
 ktfmt-gradle-plugin = "0.20.1"
 
 [libraries]
 detekt-gradle-plugin = { module = "io.gitlab.arturbosch.detekt:io.gitlab.arturbosch.detekt.gradle.plugin", version.ref = "detekt-gradle-plugin" }
+logback-core = { module = "ch.qos.logback:logback-core", version.ref="logback" }
+logback-classic = { module = "ch.qos.logback:logback-classic", version.ref="logback" }
 kotlin-gradle-plugin = { module = "org.jetbrains.kotlin:kotlin-gradle-plugin", version.ref = "kotlin-gradle-plugin" }
 ktfmt-gradle-plugin = { module = "com.ncorti.ktfmt.gradle:plugin", version.ref = "ktfmt-gradle-plugin" }