chore: Travis script for electron build

.travis.yml

@@ -0,0 +1,43 @@
+matrix:
+  include:
+    - os: osx
+      osx_image: xcode10.2
+      language: node_js
+      node_js: "10"
+      env:
+        - ELECTRON_CACHE=$HOME/.cache/electron
+        - ELECTRON_BUILDER_CACHE=$HOME/.cache/electron-builder
+
+    - os: linux
+      services: docker
+      language: generic
+
+cache:
+  directories:
+    - node_modules
+    - $HOME/.cache/electron
+    - $HOME/.cache/electron-builder
+
+script:
+  - |
+    if [ "$TRAVIS_OS_NAME" == "linux" ]; then
+      docker run --rm \
+        $(env | \
+          grep -Eo '^[^\s=]*(DEBUG|NODE_|ELECTRON_|YARN_|NPM_|CI|CIRCLE|TRAVIS|APPVEYOR_|CSC_|_TOKEN|_KEY|AWS_|STRIP|BUILD_)[^\s=]*' | \
+          sed '/^$/d;s/^/-e /' | \
+          paste -sd ' ' \
+        ) \
+        -v ${PWD}:/project \
+        -v ~/.cache/electron:/root/.cache/electron \
+        -v ~/.cache/electron-builder:/root/.cache/electron-builder \
+        electronuserland/builder:wine \
+        /bin/bash -c "yarn --link-duplicates --pure-lockfile && yarn electron:build --linux --win"
+    else
+      yarn electron:build
+    fi
+before_cache:
+  - rm -rf $HOME/.cache/electron-builder/wine
+
+branches:
+  except:
+    - "/^v\\d+\\.\\d+\\.\\d+$/"

electron-builder.yml

@@ -0,0 +1,5 @@
+productName: Frappe Accounting
+appId: io.frappe.accounting
+snap:
+  publish:
+    - github

package.json

@@ -1,7 +1,6 @@
 {
   "name": "frappe-accounting",
   "description": "Simple Accounting app for everyone",
-  "productName": "Frappe Accounting",
   "version": "0.0.2",
   "author": {
     "name": "Frappe Technologies Pvt. Ltd.",