initial: oboe, logging

app/src/main/assets/logback.xml

@@ -0,0 +1,27 @@
+<configuration>
+    <property name="LOG_DIR" value="/data/data/at.lockstep.app/files" />
+
+    <appender name="logcat" class="ch.qos.logback.classic.android.LogcatAppender">
+        <encoder>
+            <pattern>%msg</pattern>
+        </encoder>
+    </appender>
+
+    <!--
+    <appender name="logfile" class="ch.qos.logback.core.FileAppender">
+        <file>${LOG_DIR}/debug.log</file>
+        <encoder>
+            <pattern>%d{yyyy-MM-dd' 'HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+    -->
+
+    <root level="DEBUG">
+        <appender-ref ref="logcat" />
+
+        <!-- in other app, detached from MainActivity.onCreate(), unless AppSettings.logfileDebugging = true -->
+        <!--
+        <appender-ref ref="logfile" />
+        -->
+    </root>
+</configuration>