Load system properties (#6)

Author: rogervinas

chat-server/.gitignore

@@ -2,4 +2,5 @@
 .kotlin
 .gradle
 .ollama
-build
+build
+system.properties

chat-server/build.gradle.kts

@@ -1,6 +1,7 @@
 import org.gradle.api.tasks.testing.logging.TestLogEvent.FAILED
 import org.gradle.api.tasks.testing.logging.TestLogEvent.PASSED
 import org.gradle.api.tasks.testing.logging.TestLogEvent.SKIPPED
+import java.util.Properties
 
 plugins {
     val kotlinVersion = "2.1.20"
@@ -73,4 +74,22 @@ tasks.withType<Test> {
     testLogging {
         events(PASSED, SKIPPED, FAILED)
     }
+    setSystemProperties { systemProperty(it.first, it.second) }
+}
+
+tasks.withType<JavaExec> {
+    setSystemProperties { systemProperty(it.first, it.second) }
+}
+
+private fun setSystemProperties(setSystemProperty: (Pair<String, Any>) -> Unit) {
+    val systemPropertiesFile = project.rootProject.file("system.properties")
+    if (systemPropertiesFile.exists()) {
+        systemPropertiesFile.inputStream().use { inputStream ->
+            Properties().apply {
+                load(inputStream)
+            }.forEach {
+                setSystemProperty(it.key.toString() to it.value)
+            }
+        }
+    }
 }