Merge pull request #155 from curbengh/travis-windows

ci(travis): add Windows

Author: SukkaW

.travis.yml

@@ -1,11 +1,11 @@
-language: node_js
+os:
+  - linux
+  - windows
 
-sudo: false
+language: node_js
 
 cache:
-  apt: true
-  directories:
-    - node_modules
+  npm: true
 
 node_js:
   - "8"
@@ -14,7 +14,9 @@ node_js:
   - "13"
 
 script:
-  - npm run eslint
+  - if [[ $TRAVIS_OS_NAME == "linux" ]]; then
+      npm run eslint;
+    fi
   - npm run test-cov
 
 after_script: