Adding one more build step to ensure correct source code revision is used for the release.

platform/android/scripts/ensure-code-revision.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+set -e
+set -o pipefail
+set -u
+
+function step { >&2 echo -e "\033[1m\033[36m* $@\033[0m"; }
+function finish { >&2 echo -en "\033[0m"; }
+trap finish EXIT
+
+VERSION_TAG=${VERSION_TAG:-''}
+if [[ -z ${VERSION_TAG} ]]; then
+    step "Determining version number from most recent relevant git tag…"
+    VERSION_TAG=$( git describe --tags --match=android-v*.*.* --abbrev=0 )
+    echo "Found tag: ${VERSION_TAG}"
+fi
+
+if [[ $( echo ${VERSION_TAG} | grep --invert-match android-v ) ]]; then
+    echo "Error: ${VERSION_TAG} is not a valid android version tag"
+    echo "VERSION_TAG should be in format: android-vX.X.X-pre.X"
+    exit 1
+fi
+
+step "Checking out source code at ${VERSION_TAG}"
+git checkout ${VERSION_TAG}