Have ext.PUBLISH_VERSION be source of truth (#118)

It turns out we can use variables in groovy to declare the release
version of our package in one variable (the variable that our sonatype
repository happens to look for the release version) and then reference
that variable in another place location (in our case we want to
reference it so we can expose it on the `BuildConfig` to reference it in
logs at runtime)

NOTE:
* I moved the ext block to the top of the build.gradle file so that the
  PUBLISH_VERSION variable would exist by the time the android block
  executes
* To reduce coupling on `BuildConfig`, I opted to continue the pattern
  of exposing the PUBLISH_VERSION via the `EnvConfig` object. We can
  change this later if not a good idea

forage-android/build.gradle

@@ -5,6 +5,26 @@ plugins {
     id("org.jetbrains.kotlinx.kover") version "0.6.1"
 }
 
+ext {
+    PUBLISH_GROUP_ID = 'com.joinforage'
+    PUBLISH_VERSION = '3.3.0'
+    PUBLISH_ARTIFACT_ID = 'forage-android'
+    PUBLISH_DESCRIPTION = 'Forage Android SDK'
+    PUBLISH_URL = 'https://github.com/teamforage/forage-android-sdk'
+    PUBLISH_LICENSE_NAME = 'MIT License'
+    PUBLISH_LICENSE_URL =
+            'https://github.com/teamforage/forage-android-sdk/blob/main/LICENSE'
+    PUBLISH_DEVELOPER_ID = 'owenkim'
+    PUBLISH_DEVELOPER_NAME = 'Owen Kim'
+    PUBLISH_DEVELOPER_EMAIL = '[email protected]'
+    PUBLISH_SCM_CONNECTION =
+            'scm:git:github.com:teamforage/forage-android-sdk.git'
+    PUBLISH_SCM_DEVELOPER_CONNECTION =
+            'scm:git:ssh://github.com:teamforage/forage-android-sdk.git'
+    PUBLISH_SCM_URL =
+            'https://github.com/teamforage/forage-android-sdk/tree/main'
+}
+
 android {
     namespace 'com.joinforage.forage.android'
     compileSdk 33
@@ -15,6 +35,8 @@ android {
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         consumerProguardFiles "consumer-rules.pro"
+
+        buildConfigField 'String', 'PUBLISH_VERSION', "\"${PUBLISH_VERSION}\""
     }
 
     buildTypes {
@@ -81,24 +103,6 @@ dependencies {
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.0'
 }
 
-ext {
-    PUBLISH_GROUP_ID = 'com.joinforage'
-    PUBLISH_VERSION = '3.2.0'
-    PUBLISH_ARTIFACT_ID = 'forage-android'
-    PUBLISH_DESCRIPTION = 'Forage Android SDK'
-    PUBLISH_URL = 'https://github.com/teamforage/forage-android-sdk'
-    PUBLISH_LICENSE_NAME = 'MIT License'
-    PUBLISH_LICENSE_URL =
-            'https://github.com/teamforage/forage-android-sdk/blob/main/LICENSE'
-    PUBLISH_DEVELOPER_ID = 'owenkim'
-    PUBLISH_DEVELOPER_NAME = 'Owen Kim'
-    PUBLISH_DEVELOPER_EMAIL = '[email protected]'
-    PUBLISH_SCM_CONNECTION =
-            'scm:git:github.com:teamforage/forage-android-sdk.git'
-    PUBLISH_SCM_DEVELOPER_CONNECTION =
-            'scm:git:ssh://github.com:teamforage/forage-android-sdk.git'
-    PUBLISH_SCM_URL =
-            'https://github.com/teamforage/forage-android-sdk/tree/main'
-}
+
 
 apply from: "${rootProject.projectDir}/scripts/publish-module.gradle"

forage-android/src/main/java/com/joinforage/forage/android/core/EnvConfig.kt

@@ -1,5 +1,6 @@
 package com.joinforage.forage.android.core
 
+import com.joinforage.forage.android.BuildConfig
 import com.joinforage.forage.android.ui.ForageConfig
 
 internal enum class EnvOption(val value: String) {
@@ -20,11 +21,10 @@ internal sealed class EnvConfig(
     val ldMobileKey: String,
     val ddClientToken: String
 ) {
-    // This is how we currently offer access to the the release
-    // version to code at runtime. It is essential that this
-    // value stay in sync with forage-android/build.gradle's
-    // PUBLISH_VERSION value.
-    val PUBLISH_VERSION: String = "3.2.0"
+    // For the time being, I figure we can consume BuildConfig in exactly
+    // one spot (here) to reduce the pieces of source code have to couple
+    // to BuildConfig.
+    val PUBLISH_VERSION: String = BuildConfig.PUBLISH_VERSION
 
     object Dev : EnvConfig(
         FLAVOR = EnvOption.DEV,