feat: Support for minified/optimized builds

app/build.gradle.kts

@@ -20,6 +20,25 @@ plugins {
     kotlin("kapt")
 }
 
+// from: https://discuss.kotlinlang.org/t/use-git-hash-as-version-number-in-build-gradle-kts/19818/8
+fun String.runCommand(
+    workingDir: File = File("."),
+    timeoutAmount: Long = 60,
+    timeoutUnit: TimeUnit = TimeUnit.SECONDS
+): String = ProcessBuilder(split("\\s(?=(?:[^'\"`]*(['\"`])[^'\"`]*\\1)*[^'\"`]*$)".toRegex()))
+    .directory(workingDir)
+    .redirectOutput(ProcessBuilder.Redirect.PIPE)
+    .redirectError(ProcessBuilder.Redirect.PIPE)
+    .start()
+    .apply { waitFor(timeoutAmount, timeoutUnit) }
+    .run {
+        val error = errorStream.bufferedReader().readText().trim()
+        if (error.isNotEmpty()) {
+            return@run ""
+        }
+        inputStream.bufferedReader().readText().trim()
+    }
+
 // The application ID
 val appID = "com.dzeio.openhealth"
 
@@ -32,6 +51,14 @@ val sdkMin = 21
 // target SDK version
 val sdkTarget = 33
 
+val branch = "git rev-parse --abbrev-ref HEAD".runCommand(workingDir = rootDir)
+var tag = "git tag -l --points-at HEAD".runCommand(workingDir = rootDir)
+if (tag == "") {
+    tag = "not tagged"
+}
+val commitId = "git rev-parse HEAD".runCommand(workingDir = rootDir)
+    .subSequence(0, 7)
+
 android {
 
     signingConfigs {
@@ -83,28 +110,29 @@ android {
             "new String[]{\"" + locales.joinToString("\",\"") + "\"}"
         )
         resourceConfigurations += locales
+
+        buildConfigField("String", "BRANCH", "\"$branch\"")
+        buildConfigField("String", "TAG", "\"$tag\"")
+        buildConfigField("String", "COMMIT", "\"$commitId\"")
     }
 
     buildTypes {
 
         getByName("release") {
             // Slimmer version
-            isMinifyEnabled = false
-            isShrinkResources = false
-            isDebuggable = true
+            isMinifyEnabled = true
+            isShrinkResources = true
+            isDebuggable = false
 
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"),
                 "proguard-rules.pro"
             )
+
             signingConfig = signingConfigs.getByName("release")
         }
 
         getByName("debug") {
-            proguardFiles(
-                getDefaultProguardFile("proguard-android-optimize.txt"),
-                "proguard-rules.pro"
-            )
             applicationIdSuffix = ".dev"
             versionNameSuffix = "-dev"
             isDebuggable = true