chore(CI): add apps version check

.github/workflows/apps_version_check.yaml

@@ -0,0 +1,12 @@
+name: Check Apps Version
+
+on: [pull_request]
+
+jobs:
+  check_deps_integrity:
+    runs-on: ubuntu-20.04
+
+    steps:
+      - uses: actions/checkout@v1
+      - name: Check apps version
+        run: ./scripts/apps-version-check.sh

scripts/apps-version-check.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+set -euo pipefail
+
+latest_release=$(git describe --tags "$(git rev-list --tags --max-count=1)")
+
+bad_app_count=0
+
+while read -r app; do
+    if [ "$app" != "emqx" ]; then
+        app_path="$app"
+    else
+        app_path="."
+    fi
+    src_file="$app_path/src/$(basename "$app").app.src"
+    old_app_version="$(git show "$latest_release":"$src_file" | grep vsn | grep -oE '"[0-9]+.[0-9]+.[0-9]+"' | tr -d '"')"
+    now_app_version=$(grep -E 'vsn' "$src_file" | grep -oE '"[0-9]+\.[0-9]+\.[0-9]+"' | tr -d '"')
+    if [ "$old_app_version" = "$now_app_version" ]; then
+        changed="$(git diff --name-only "$latest_release"...HEAD \
+                    -- "$app_path/etc" \
+                    -- "$app_path/src" \
+                    -- "$app_path/priv" \
+                    -- "$app_path/c_src" | wc -l)"
+        if [ "$changed" -gt 0 ]; then
+            echo "$src_file needs a vsn bump"
+            bad_app_count=$(( bad_app_count + 1))
+        fi
+    fi
+done < <(./scripts/find-apps.sh)
+
+if [ $bad_app_count -gt 0 ]; then
+    exit 1
+else
+    echo "apps version check successfully"       
+fi