chore: configure travis-ci to build on macos

- Adjust Travis configuration to build on macOS, any branch.
- Add dist script to build for all targets. Use dist for travis builds.

.travis.yml

@@ -1,17 +1,11 @@
+os: osx
+osx_image: xcode11.3
 language: node_js
-node_js:
-  - 'lts/*'
-  - '10'
-sudo: required
-dist: trusty
+node_js: 'lts/*'
 cache:
   directories:
     - node_modules
     - '$HOME/.electron'
     - '$HOME/.cache'
 script:
-  - npm run build
-branches:
-  only:
-    - master
-    - dev
+  - npm run dist

package.json

@@ -18,6 +18,7 @@
     "build:clean": "cross-env BUILD_TARGET=clean node .electron-vue/build.js",
     "build:web": "cross-env BUILD_TARGET=web node .electron-vue/build.js",
     "dev": "node .electron-vue/dev-runner.js",
+    "dist": "node .electron-vue/build.js && electron-builder -w -l -o",
     "lint": "eslint --ext .js,.vue -f ./node_modules/eslint-friendly-formatter src",
     "lint:fix": "eslint --ext .js,.vue -f ./node_modules/eslint-friendly-formatter --fix src",
     "pack": "npm run pack:main && npm run pack:renderer",