[#68] Fix version linter.

Signed-off-by: Ori Bruk <o.bruk@yadro.com>

Makefile

@@ -24,13 +24,27 @@ fmt:
 
 # Run version update check
 vsn:
-	@diff1=$$(git branch -a); \
+	@version=$$(git show remotes/origin/master:version.json); \
-	echo $$diff1; \
+	if [ -z "$$version" ]; then \
-	diff=$$(git diff-index remotes/origin/master version.json); \
+		exit; \
-	if [[ -z "$$diff" ]]; then \
+	fi; \
-       echo "⇒ You need to update the api version in the version.json file"; \
+	masterMilestone=$$(jq -n --argjson data "$$version" '$$data.milestone'); \
-       exit 1;\
+	masterPatch=$$(jq -n --argjson data "$$version" '$$data.patch'); \
-    fi
+	milestone=$$(jq -r '.milestone' version.json); \
+	patch=$$(jq -r '.patch' version.json); \
+	if [ "$$masterMilestone" -eq "$$milestone" -a "$$masterPatch" -eq "$$patch" ]; then \
+		echo "⇒ You need to update the api version in the version.json file"; \
+		exit 1; \
+	elif [ "$$masterMilestone" -gt "$$milestone" ]; then \
+		echo "⇒ The milestone cannot be decrement in the version.json file"; \
+		exit 1; \
+	elif [ "$$masterMilestone" -eq "$$milestone" -a "$$masterPatch" -gt "$$patch" ]; then \
+		echo "⇒ The patch cannot be decrement without milestone increment in the version.json file"; \
+		exit 1; \
+	elif [ "$$masterMilestone" -lt "$$milestone" -a "$$patch" -ne 0 ]; then \
+		echo "⇒ The patch should be 0 after milestone increment in the version.json file"; \
+		exit 1; \
+	fi
 
 # Run compatibility information check
 compatibility: