[Travis CI] Build Optimizations (#1743)

* [Travis CI] Build Optimizations

* update cocoapods versionm

* test sharing derived data directories

* Hack to reduce travis run time

* Remove test file

* Add missing slashes

.travis.yml

@@ -1,4 +1,7 @@
 language: objective-c
+cache:
+  - bundler
+  - cocoapods
 osx_image: xcode7.3
 git:
   depth: 10
@@ -6,7 +9,7 @@ before_install:
   - brew update
   - brew outdated xctool || brew upgrade xctool
   - brew outdated carthage || brew upgrade carthage
-  - gem install cocoapods -v 0.38.2
+  - gem install cocoapods -v 1.0.1
   - gem install xcpretty
   - gem install xcpretty-travis-formatter
 #  - gem install slather
@@ -14,7 +17,9 @@ before_install:
 install: echo "<3"
 env:
   - MODE=tests
-  - MODE=examples
+  - MODE=examples-pt1
+  - MODE=examples-pt2
+  - MODE=examples-pt3
   - MODE=life-without-cocoapods
   - MODE=framework
 script: ./build.sh $MODE

build.sh

@@ -36,21 +36,102 @@ if [ "$MODE" = "tests" ]; then
     exit 0
 fi
 
-if [ "$MODE" = "examples" ]; then
+if [ "$MODE" = "examples-pt1" ]; then
     echo "Verifying that all AsyncDisplayKit examples compile."
 
-    for example in examples/*/; do
-        echo "Building $example."
+    for example in $((find ./examples -type d -maxdepth 1 \( ! -iname ".*" \)) | head -6 | head); do
+        echo "Building (examples-pt1) $example."
 
         if [ -f "${example}/Podfile" ]; then
           echo "Using CocoaPods"
           pod install --project-directory=$example
           
           set -o pipefail && xcodebuild \
-              -workspace "${example}Sample.xcworkspace" \
+              -workspace "${example}/Sample.xcworkspace" \
               -scheme Sample \
               -sdk "$SDK" \
               -destination "$PLATFORM" \
+              -derivedDataPath ~/ \
+              build | xcpretty $FORMATTER
+        elif [ -f "${example}/Cartfile" ]; then
+          echo "Using Carthage"
+          local_repo=`pwd`
+          current_branch=`git rev-parse --abbrev-ref HEAD`
+          cd $example
+          
+          echo "git \"file://${local_repo}\" \"${current_branch}\"" > "Cartfile"
+          carthage update --platform iOS
+          
+          set -o pipefail && xcodebuild \
+              -project "Sample.xcodeproj" \
+              -scheme Sample \
+              -sdk "$SDK" \
+              -destination "$PLATFORM" \
+              build | xcpretty $FORMATTER
+          
+          cd ../..
+        fi
+    done
+    trap - EXIT
+    exit 0
+fi
+
+if [ "$MODE" = "examples-pt2" ]; then
+    echo "Verifying that all AsyncDisplayKit examples compile."
+
+    for example in $((find ./examples -type d -maxdepth 1 \( ! -iname ".*" \)) | head -12 | tail -6 | head); do
+        echo "Building $example (examples-pt2)."
+
+        if [ -f "${example}/Podfile" ]; then
+          echo "Using CocoaPods"
+          pod install --project-directory=$example
+          
+          set -o pipefail && xcodebuild \
+              -workspace "${example}/Sample.xcworkspace" \
+              -scheme Sample \
+              -sdk "$SDK" \
+              -destination "$PLATFORM" \
+              -derivedDataPath ~/ \
+              build | xcpretty $FORMATTER
+        elif [ -f "${example}/Cartfile" ]; then
+          echo "Using Carthage"
+          local_repo=`pwd`
+          current_branch=`git rev-parse --abbrev-ref HEAD`
+          cd $example
+          
+          echo "git \"file://${local_repo}\" \"${current_branch}\"" > "Cartfile"
+          carthage update --platform iOS
+          
+          set -o pipefail && xcodebuild \
+              -project "Sample.xcodeproj" \
+              -scheme Sample \
+              -sdk "$SDK" \
+              -destination "$PLATFORM" \
+              build | xcpretty $FORMATTER
+          
+          cd ../..
+        fi
+    done
+    trap - EXIT
+    exit 0
+fi
+
+if [ "$MODE" = "examples-pt3" ]; then
+    echo "Verifying that all AsyncDisplayKit examples compile."
+
+    for example in $((find ./examples -type d -maxdepth 1 \( ! -iname ".*" \)) | head -7 | head); do
+        echo "Building $example (examples-pt3)."
+
+        if [ -f "${example}/Podfile" ]; then
+          echo "Using CocoaPods"
+          pod install --project-directory=$example
+          
+          set -o pipefail && xcodebuild \
+              -workspace "${example}/Sample.xcworkspace" \
+              -scheme Sample \
+              -sdk "$SDK" \
+              -destination "$PLATFORM" \
+              -derivedDataPath ~/ \
               build | xcpretty $FORMATTER
         elif [ -f "${example}/Cartfile" ]; then
           echo "Using Carthage"