[#9] Treat compiler warnings as errors

.gitignore

@@ -17,3 +17,4 @@ build/
 gen/
 local.properties
 /.idea/deploymentTargetDropDown.xml
+*.hprof

app/build.gradle.kts

@@ -85,6 +85,7 @@ android {
     // TODO [#6]: Figure out how to move this into the build-conventions
     kotlinOptions {
         jvmTarget = libs.versions.java.get()
+        allWarningsAsErrors = project.property("IS_TREAT_WARNINGS_AS_ERRORS").toString().toBoolean()
     }
 }
 

gradle.properties

@@ -3,6 +3,7 @@ org.gradle.vfs.watch=true
 org.gradle.configureondemand=false
 org.gradle.caching=true
 org.gradle.parallel=true
+org.gradle.jvmargs=-Xmx3g
 
 kapt.include.compile.classpath=false
 kapt.incremental.apt=true
@@ -11,6 +12,9 @@ kapt.use.worker.api=true
 android.useAndroidX=true
 android.builder.sdkDownload=true
 
+# Kotlin compiler warnings can be considered errors, failing the build.
+IS_TREAT_WARNINGS_AS_ERRORS=true
+
 # Optionally configure code coverage, as historically Jacoco has at times been buggy with respect to new Kotlin versions
 IS_COVERAGE_ENABLED=true