Revert "Revert "Add Beta flavor builds""

This reverts commit 20aa3c6e2d.

buildSrc/src/main/kotlin/Commands.kt

@@ -0,0 +1,39 @@
+import org.gradle.api.Project
+import java.io.ByteArrayOutputStream
+import java.text.SimpleDateFormat
+import java.util.TimeZone
+import java.util.Date
+
+// Git is needed in your system PATH for these commands to work.
+// If it's not installed, you can return a random value as a workaround
+fun Project.getCommitCount(): String {
+    return runCommand("git rev-list --count HEAD")
+    // return "1"
+}
+
+fun Project.getCommitCountSinceLastRelease(): String {
+    val lastTag = runCommand("git describe --tags --abbrev=0")
+    return runCommand("git rev-list --count $lastTag..HEAD").toIntOrNull()?.toString() ?: "1"
+    // return "1"
+}
+
+
+fun Project.getGitSha(): String {
+    return runCommand("git rev-parse --short HEAD")
+    // return "1"
+}
+
+fun Project.getBuildTime(): String {
+    val df = SimpleDateFormat("yyyy-MM-dd'T'HH:mm'Z'")
+    df.timeZone = TimeZone.getTimeZone("UTC")
+    return df.format(Date())
+}
+
+fun Project.runCommand(command: String): String {
+    val byteOut = ByteArrayOutputStream()
+    project.exec {
+        commandLine = command.split(" ")
+        standardOutput = byteOut
+    }
+    return String(byteOut.toByteArray()).trim()
+}