Updates: CI to github

* Create check-release.yml
* Update README.md - change/add badges
* Update init.lua - removed unused var causing warning!
* Delete .travis.yml

.github/workflows/check-release.yml

@@ -0,0 +1,11 @@
+on: [push, pull_request]
+name: Check & Release
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: lint
+        uses: Roang-zero1/factorio-mod-luacheck@master
+        with:
+          luacheckrc_url: https://raw.githubusercontent.com/shivajiva101/sban/master/.luacheckrc

.travis.yml

@@ -1,12 +0,0 @@
-language: generic
-sudo: false
-addons:
-  apt:
-    packages:
-    - luarocks
-before_install:
-  - luarocks install --local luacheck
-script:
-- $HOME/.luarocks/bin/luacheck --no-color .
-notifications:
-  email: false

README.md

@@ -1,6 +1,6 @@
 # sban
-
-[![Build Status](https://travis-ci.org/shivajiva101/sban.svg?branch=master)](https://travis-ci.org/shivajiva101/sban)
+[![Build status](https://github.com/shivajiva101/sban/workflows/Check%20&%20Release/badge.svg)](https://github.com/shivajiva101/sban/actions)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 
 This mod is based on the concepts introduced by xban2, and expands on them
 by using an sql database instead of a serialised table file. This approach to

init.lua

@@ -1438,7 +1438,7 @@ end
 process_expired_bans() -- trigger on mod load
 
 local function data_integrity_check()
-	local r, q = {}
+	local q
 	minetest.log("action", "[sban] Data integrity check...")
 	q = [[SELECT
 		active.id,