Improved debugging tools (#620)

* Add WhatTheStack

* Add leakcanary

* Codestyle nit

* Support snapshot builds for debug tooling

Signed-off-by: Harsh Shandilya <msfjarvis@gmail.com>

app/build.gradle

@@ -50,11 +50,13 @@ android {
         release {
             minifyEnabled = true
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            buildConfigField 'boolean', 'ENABLE_DEBUG_FEATURES', isSnapshot() ? 'true' : 'false'
         }
         debug {
             applicationIdSuffix = '.debug'
             versionNameSuffix = '-debug'
             minifyEnabled = false
+            buildConfigField 'boolean', 'ENABLE_DEBUG_FEATURES', 'true'
         }
     }
 
@@ -98,6 +100,13 @@ dependencies {
     implementation deps.third_party.openpgp_ktx
     implementation deps.third_party.ssh_auth
     implementation deps.third_party.timber
+    implementation deps.third_party.whatthestack
+
+    if (isSnapshot()) {
+        implementation deps.third_party.leakcanary
+    } else {
+        debugImplementation deps.third_party.leakcanary
+    }
 
     // Testing-only dependencies
     androidTestImplementation deps.testing.junit

app/src/main/java/com/zeapo/pwdstore/Application.kt

@@ -4,6 +4,7 @@
  */
 package com.zeapo.pwdstore
 
+import com.haroldadmin.whatthestack.WhatTheStack
 import timber.log.Timber
 
 @Suppress("Unused")
@@ -12,5 +13,8 @@ class Application : android.app.Application() {
     override fun onCreate() {
         super.onCreate()
         Timber.plant(Timber.DebugTree())
+        if (BuildConfig.ENABLE_DEBUG_FEATURES) {
+            WhatTheStack(this).init()
+        }
     }
 }

dependencies.gradle

@@ -41,9 +41,11 @@ ext.deps = [
         fastscroll: 'me.zhanghai.android.fastscroll:library:1.1.0',
         jsch: 'com.jcraft:jsch:0.1.55',
         jgit: 'org.eclipse.jgit:org.eclipse.jgit:3.7.1.201504261725-r',
+        leakcanary: 'com.squareup.leakcanary:leakcanary-android:2.1',
         openpgp_ktx: 'com.github.android-password-store:openpgp-ktx:1.2.0',
         ssh_auth: 'org.sufficientlysecure:sshauthentication-api:1.0',
-        timber: "com.jakewharton.timber:timber:4.7.1",
+        timber: 'com.jakewharton.timber:timber:4.7.1',
+        whatthestack: 'com.github.haroldadmin:WhatTheStack:0.0.1',
     ],
 
     testing: [