add dev buildType

Closes #3411
// FREEBIE

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.0.1'
+        classpath 'com.android.tools.build:gradle:1.2.3'
         classpath files('libs/gradle-witness.jar')
     }
 }
@@ -69,6 +69,8 @@ dependencies {
     compile 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
     compile 'org.whispersystems:textsecure-android:1.5.0'
 
+    compile 'com.squareup.leakcanary:leakcanary-android:1.3.1'
+
     androidTestCompile 'com.google.dexmaker:dexmaker:1.2'
     androidTestCompile 'com.google.dexmaker:dexmaker-mockito:1.2'
 
@@ -83,6 +85,7 @@ dependencies {
         exclude group: 'com.android.support', module: 'support-annotations'
     }
     androidTestCompile ('com.android.support.test.espresso:espresso-core:2.1') {
+        exclude group: 'com.android.support', module: 'support-annotations'
         exclude group: 'javax.inject'
     }
 }
@@ -135,7 +138,7 @@ dependencyVerification {
 android {
     compileSdkVersion 22
     buildToolsVersion '22.0.1'
-    testBuildType "debugTest"
+    testBuildType "automation"
 
     dexOptions {
         javaMaxHeapSize "4g"
@@ -148,6 +151,7 @@ android {
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         buildConfigField "long", "BUILD_TIMESTAMP", System.currentTimeMillis() + "L"
         buildConfigField "String", "PUSH_URL", "\"https://textsecure-service.whispersystems.org\""
+        buildConfigField "boolean", "DEV_BUILD", "false"
     }
 
     compileOptions {
@@ -190,11 +194,15 @@ android {
             proguardFiles = buildTypes.debug.proguardFiles
             signingConfig signingConfigs.release
         }
-        debugTest.initWith(buildTypes.debug)
-        debugTest {
-            proguardFile 'proguard-testing.pro'
+        automation.initWith(buildTypes.debug)
+        automation {
+            proguardFile 'proguard-automation.pro'
             buildConfigField "String", "PUSH_URL", "\"https://textsecure-service-staging.whispersystems.org\""
         }
+        dev.initWith(buildTypes.debug)
+        dev {
+            buildConfigField "boolean", "DEV_BUILD", "true"
+        }
     }
 
     sourceSets {

src/org/thoughtcrime/securesms/ApplicationContext.java

@@ -18,6 +18,11 @@ package org.thoughtcrime.securesms;
 
 import android.app.Application;
 import android.content.Context;
+import android.os.StrictMode;
+import android.os.StrictMode.ThreadPolicy;
+import android.os.StrictMode.VmPolicy;
+
+import com.squareup.leakcanary.LeakCanary;
 
 import org.thoughtcrime.securesms.crypto.PRNGFixes;
 import org.thoughtcrime.securesms.dependencies.AxolotlStorageModule;
@@ -34,8 +39,6 @@ import org.whispersystems.jobqueue.requirements.NetworkRequirementProvider;
 import org.whispersystems.libaxolotl.logging.AxolotlLoggerProvider;
 import org.whispersystems.libaxolotl.util.AndroidAxolotlLogger;
 
-import java.security.Security;
-
 import dagger.ObjectGraph;
 
 /**
@@ -57,6 +60,8 @@ public class ApplicationContext extends Application implements DependencyInjecto
 
   @Override
   public void onCreate() {
+    super.onCreate();
+    initializeDeveloperBuild();
     initializeRandomNumberFix();
     initializeLogging();
     initializeDependencyInjection();
@@ -75,6 +80,16 @@ public class ApplicationContext extends Application implements DependencyInjecto
     return jobManager;
   }
 
+  private void initializeDeveloperBuild() {
+    if (BuildConfig.DEV_BUILD) {
+      LeakCanary.install(this);
+      StrictMode.setThreadPolicy(new ThreadPolicy.Builder().detectAll()
+                                                           .penaltyLog()
+                                                           .build());
+      StrictMode.setVmPolicy(new VmPolicy.Builder().detectAll().penaltyLog().build());
+    }
+  }
+
   private void initializeRandomNumberFix() {
     PRNGFixes.apply();
   }