add bumper script

helpers/bumper.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+import fileinput
+import os
+
+"""
+This script is used to bump elasticsearch versions before a new release
+
+Usage:
+- Change the values of `old_versions` and `new_versions``
+- Run the script: `./bumper.py`
+- That's all
+"""
+
+os.chdir(os.path.join(os.path.dirname(__file__), '..'))
+
+old_versions = {
+    6: '6.8.3',
+    7: '7.4.0',
+}
+
+new_versions = {
+    6: '6.8.4',
+    7: '7.4.1',
+}
+
+files = [
+    'README.md',
+    'defaults/main.yml',
+    '.kitchen.yml',
+]
+
+for major, version in old_versions.items():
+    for file in files:
+        print(file)
+        for line in fileinput.input([file], inplace=True):
+            print(line.replace(version, new_versions[major]), end='')