Fix builds and linting (#567)

* Update build.yml
* macos/linux specific bootstrapping
* Linux doesn't need ruby
* Avoid double-run of workflows

.github/workflows/build.yml

@@ -1,5 +1,8 @@
 name: Build
-on: [push, pull_request]
+on:
+  pull_request:
+    types: [opened, reopened]
+  push:
 jobs:
   build-example-ios:
     name: build-example-ios
@@ -14,24 +17,20 @@ jobs:
       - name: Install modules
         run: yarn
       - name: Install example
-        run: yarn bootstrap
+        run: yarn bootstrap-macos
       - name: Build
         run: cd example/ios && xcodebuild -workspace CameraKitExample.xcworkspace -configuration Debug -scheme CameraKitExample -sdk iphoneos build CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO
   build-example-android:
     name: build-example-android
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest # using linux runner for speed
     steps:
-      - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: '2.7.4'
       - name: Checkout
         uses: actions/checkout@v3
       - name: Validate Gradle Wrapper
         uses: gradle/wrapper-validation-action@v1
       - name: Install modules
         run: yarn
       - name: Install example
-        run: yarn bootstrap
+        run: yarn bootstrap-linux
       - name: Build
         run: cd example/android && ./gradlew assembleDebug

.github/workflows/linter.yml

@@ -1,15 +1,18 @@
 name: Linter
-on: [push, pull_request]
+on:
+  pull_request:
+    types: [opened, reopened]
+  push:
 jobs:
   eslint:
     name: ESLint
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest # using linux runner for speed
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Install modules
         run: yarn
       - name: Install example
-        run: yarn bootstrap
+        run: yarn bootstrap-linux
       - name: Lint
         run: yarn lint

package.json

@@ -19,7 +19,8 @@
     "release:beta": "yarn clean && yarn build && yarn publish --tag beta --verbose",
     "release:local": "yarn clean && yarn build && tmp=$(mktemp) && yarn pack --filename $tmp.tar.gz && open -R $tmp.tar.gz",
     "start": "watchman watch-del-all && node node_modules/react-native/local-cli/cli.js start",
-    "bootstrap": "cd example/ && bundle install && yarn && cd ios/ && bundle exec pod install"
+    "bootstrap-macos": "cd example/ && bundle install && yarn && cd ios/ && bundle exec pod install",
+    "bootstrap-linux": "cd example/ && yarn"
   },
   "main": "dist/index.js",
   "module": "dist/index.js",