The very basic client app, not adapted for mobiles.

scripts/version_generator.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+# Generates version based on git tag.
+LATEST_TAG=$(git tag | tail -n 1)
+
+# Check latest tag commit. If it is equal to current - use that tag as version.
+if [ "${LATEST_TAG}" != "" ]; then
+    LATEST_TAG_COMMIT=$(git rev-list -n 1 $LATEST_TAG)
+    LATEST_COMMIT=$(git rev-list -n 1 HEAD)
+
+    if [ "${LATEST_TAG_COMMIT}" == "${LATEST_COMMIT}" ]; then
+        echo "${LATEST_TAG}"
+
+        exit 0
+    fi
+else
+    # No tags in repo. Assuming latest tag is "v0.0.0".
+    LATEST_TAG="0.0.0"
+fi
+
+# If we're here, then latest tag commit is not latest commit on current branch.
+# We should increase second number and add "-dev" postfix.
+IFS=. read MAJOR MINOR PATCH <<<"${LATEST_TAG}"
+MINOR=$(($MINOR + 1))
+
+case $1 in
+client)
+    echo "${MAJOR}.${MINOR}.${PATCH}"
+    ;;
+*)
+    echo "v${MAJOR}.${MINOR}.${PATCH}-dev"
+    ;;
+esac