added configurations for travis CI, swift lint and code cov

.swiftlint.yml

@@ -0,0 +1,44 @@
+included:
+  - Sources
+
+excluded: # paths to ignore during linting. Takes precedence over `included`.
+  - Carthage
+  - Pods
+  - Tests
+  - Support
+  - docs
+  - build
+
+disabled_rules: # rule identifiers to exclude from running
+  - large_tuple
+  - todo
+
+line_length: 
+  - 200 #warning
+  - 250 #error
+
+type_body_length:
+  - 700 #warning
+  - 1000 #error
+
+file_length:
+  - 1000 #warning
+  - 1200 #error
+
+function_body_length:
+  - 125 #warning
+  - 200 #error
+
+type_name:
+  min_length: 3 # only warning
+  max_length: # warning and error
+    warning: 50
+    error: 50
+
+  type_name:
+  min_length: 3 # only warning
+  max_length: # warning and error
+    warning: 50
+    error: 50
+
+reporter: "xcode" # reporter type (xcode, json, csv, checkstyle, junit, html, emoji)

.travis.yml

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+language: objective-c
+osx_image: xcode9.1
+env:
+  global:
+  - LC_CTYPE=en_US.UTF-8
+  - LANG=en_US.UTF-8
+  - IOS_FRAMEWORK_SCHEME="CoreDataPlus iOS"
+  - MACOS_FRAMEWORK_SCHEME="CoreDataPlus macOS"
+  - TVOS_FRAMEWORK_SCHEME="CoreDataPlus tvOS"
+  - WATCHOS_FRAMEWORK_SCHEME="CoreDataPlus watchOS"
+  - IOS_SDK=iphonesimulator11.1
+  - MACOS_SDK=macosx10.13
+  - TVOS_SDK=appletvsimulator11.1
+  - WATCHOS_SDK=watchsimulator4.1
+  #- WORKSPACE=CoreDataPlus.xcworkspace
+  #- EXAMPLE_SCHEME="CoreDataPlus Example"
+
+  matrix:
+    - DESTINATION="OS=10.3.1,name=iPhone 5"             SCHEME="$IOS_FRAMEWORK_SCHEME"     SDK="$IOS_SDK"     RUN_TESTS="YES"   POD_LINT="YES"  CODECOV_FLAG="ios10-32bit"
+    - DESTINATION="OS=10.3.1,name=iPhone 7 Plus"        SCHEME="$IOS_FRAMEWORK_SCHEME"     SDK="$IOS_SDK"     RUN_TESTS="YES"   POD_LINT="NO"   CODECOV_FLAG="ios10"
+    - DESTINATION="OS=3.2,name=Apple Watch - 42mm"      SCHEME="$WATCHOS_FRAMEWORK_SCHEME" SDK="$WATCHOS_SDK" RUN_TESTS="NO"    POD_LINT="NO"   CODECOV_FLAG="watchos3"
+    - DESTINATION="OS=10.2,name=Apple TV 1080p"         SCHEME="$TVOS_FRAMEWORK_SCHEME"    SDK="$TVOS_SDK"    RUN_TESTS="YES"   POD_LINT="NO"   CODECOV_FLAG="tvos10"
+    - DESTINATION="arch=x86_64"                         SCHEME="$MACOS_FRAMEWORK_SCHEME"   SDK="$MACOS_SDK"   RUN_TESTS="YES"   POD_LINT="NO"   CODECOV_FLAG="macos10_12"
+
+    - DESTINATION="OS=11.1,name=iPhone X"               SCHEME="$IOS_FRAMEWORK_SCHEME"      SDK="$IOS_SDK"      RUN_TESTS="YES"   POD_LINT="YES"   CODECOV_FLAG="ios"
+    - DESTINATION="OS=4.1,name=Apple Watch - 42mm"      SCHEME="$WATCHOS_FRAMEWORK_SCHEME"  SDK="$WATCHOS_SDK"  RUN_TESTS="NO"    POD_LINT="NO"    CODECOV_FLAG="watchos"
+    - DESTINATION="OS=11.1,name=Apple TV 4K (at 1080p)" SCHEME="$TVOS_FRAMEWORK_SCHEME"     SDK="$TVOS_SDK"     RUN_TESTS="YES"   POD_LINT="NO"    CODECOV_FLAG="tvos"
+    - DESTINATION="arch=x86_64"                         SCHEME="$MACOS_FRAMEWORK_SCHEME"    SDK="$MACOS_SDK"    RUN_TESTS="YES"   POD_LINT="NO"    CODECOV_FLAG="macos"
+
+# skip release group defined in Gemfile
+bundler_args: --without release
+
+before_install:
+  - gem install cocoapods --no-rdoc --no-ri --no-document --quiet
+  - brew install swiftlint
+  # fix for watchOS until https://github.com/travis-ci/travis-ci/issues/7580 is fixed
+  # - xcrun simctl delete 38C891AB-EC79-43E4-9311-6FDEB12DCF11 || true
+
+before_script:
+  - swiftlint --reporter "emoji"
+
+script:
+  - set -o pipefail
+  - xcodebuild -version
+  - xcodebuild -showsdks
+  - swift --version
+
+  # Build Framework in Debug and Run Tests if specified
+  - if [ $RUN_TESTS == "YES" ]; then
+      xcodebuild -scheme "$SCHEME" -sdk "$SDK" -destination "$DESTINATION" -configuration Debug ONLY_ACTIVE_ARCH=YES ENABLE_TESTABILITY=YES build-for-testing test-without-building | xcpretty;
+      bash <(curl -s https://codecov.io/bash) -J 'CoreDataPlus' -cF "$CODECOV_FLAG"
+    else
+      xcodebuild -scheme "$SCHEME" -sdk "$SDK" -destination "$DESTINATION" -configuration Debug ONLY_ACTIVE_ARCH=NO build | xcpretty;
+    fi
+
+  # Build Framework in Release and Run Tests if specified
+  - if [ $RUN_TESTS == "YES" ]; then
+      xcodebuild -scheme "$SCHEME" -sdk "$SDK" -destination "$DESTINATION" -configuration Release ONLY_ACTIVE_ARCH=NO ENABLE_TESTABILITY=YES build-for-testing test-without-building | xcpretty;
+    else
+      xcodebuild -scheme "$SCHEME" -sdk "$SDK" -destination "$DESTINATION" -configuration Release ONLY_ACTIVE_ARCH=NO build | xcpretty;
+    fi
+
+  # Run `pod lib lint` if specified
+  - if [ $POD_LINT == "YES" ]; then
+      pod lib lint;
+    fi
+
+after_success:
+  - sleep 5

codecov.yml

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+coverage:
+  ignore:
+    - Examples/*
+    - Tests/*