Use cache

.github/workflows/testing.yml

@@ -11,12 +11,30 @@ jobs:
       run: |
         brew install libtool automake cmake carthage go@1.14 swiftlint swiftformat
         gem install bundler
-    - name: Preparing dependencies
+        bundle install
+    - uses: actions/cache@v2
+      id: carthage-cache
+      with:
+        path: Carthage
+        key: ${{ runner.os }}-carthage-${{ hashFiles('**/Cartfile.resolved') }}
+        restore-keys: |
+          ${{ runner.os }}-carthage-
+    - uses: actions/cache@v2
+      id: pods-cache
+      with:
+        path: Pods
+        key: ${{ runner.os }}-pods-${{ hashFiles('**/Podfile.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-pods-
+    - name: Carthage
+      if: steps.carthage-cache.outputs.cache-hit != 'true'
+      run: ./scripts/wcarthage bootstrap --platform iOS --no-use-binaries --cache-builds
+    - name: Cocoapods
+      if: steps.pods-cache.outputs.cache-hit != 'true'
+      run: bundle exec pod install
+    - name: GopenPGP
       run: |
         export PATH="/usr/local/opt/go@1.14/bin:$PATH"
-        bundle install
-        bundle exec pod install
-        ./scripts/wcarthage bootstrap --platform iOS
         ./scripts/gopenpgp_build.sh
     - name: Testing
       run: bundle exec fastlane test