Construct CI build matrix from platform & OS X image

The new build matrix should have 10 items: 2 Xcodes * 5 platforms (Mac,
iOS, tvOS, watchOS, CocoaPods).

Author: sharplet

.travis.yml

@@ -2,11 +2,25 @@ language: objective-c
 matrix:
   include:
     - osx_image: xcode7.3
-      env:
-        - XCODEBUILD_TEST_ACTION="test"
+      env: PLATFORM=Mac
+    - osx_image: xcode7.3
+      env: PLATFORM=iOS
+    - osx_image: xcode7.3
+      env: PLATFORM=tvOS
+    - osx_image: xcode7.3
+      env: PLATFORM=watchOS
+    - osx_image: xcode7.3
+      env: PLATFORM=CocoaPods
+    - osx_image: xcode8
+      env: PLATFORM=Mac TEST_ACTION="build-for-testing test-without-building"
+    - osx_image: xcode8
+      env: PLATFORM=iOS TEST_ACTION="build-for-testing test-without-building"
+    - osx_image: xcode8
+      env: PLATFORM=tvOS TEST_ACTION="build-for-testing test-without-building"
+    - osx_image: xcode8
+      env: PLATFORM=watchOS TEST_ACTION="build-for-testing test-without-building"
     - osx_image: xcode8
-      env:
-        - XCODEBUILD_TEST_ACTION="build-for-testing test-without-building"
+      env: PLATFORM=CocoaPods
 
 env:
   global:
@@ -15,14 +29,7 @@ env:
 git:
   submodules: false
 
-script:
-  - set -o pipefail
-  - carthage bootstrap --no-use-binaries
-  - xcodebuild $XCODEBUILD_TEST_ACTION -scheme Rex-Mac | xcpretty -c
-  - xcodebuild $XCODEBUILD_TEST_ACTION -scheme Rex-iOS -sdk iphonesimulator -destination "platform=iOS Simulator,name=iPhone 6s" | xcpretty -c
-  - xcodebuild $XCODEBUILD_TEST_ACTION -scheme Rex-tvOS -sdk appletvsimulator -destination "platform=tvOS Simulator,name=Apple TV 1080p" | xcpretty -c
-  - xcodebuild build -scheme Rex-watchOS -sdk watchsimulator -destination "platform=watchOS Simulator,name=Apple Watch - 38mm" | xcpretty -c
-  - pod lib lint --quick --allow-warnings
+script: script/ci "$PLATFORM"
 
 notifications:
   email: false

script/ci

@@ -0,0 +1,40 @@
+#!/bin/sh
+
+set -e -o pipefail
+
+bootstrap() {
+  case "$1" in
+    CocoaPods)
+      ;;
+    *)
+      carthage bootstrap --no-use-binaries --platform "$1"
+      ;;
+  esac
+}
+
+build() {
+  case "$1" in
+    Mac)
+      xcodebuild ${TEST_ACTION:-test} -scheme Rex-Mac | xcpretty -c
+      ;;
+    iOS)
+      xcodebuild ${TEST_ACTION:-test} -scheme Rex-iOS -destination "platform=iOS Simulator,name=iPhone 6s" | xcpretty -c
+      ;;
+    tvOS)
+      xcodebuild ${TEST_ACTION:-test} -scheme Rex-tvOS -destination "platform=tvOS Simulator,name=Apple TV 1080p" | xcpretty -c
+      ;;
+    watchOS)
+      xcodebuild build -scheme Rex-watchOS -destination "platform=watchOS Simulator,name=Apple Watch - 42mm" | xcpretty -c
+      ;;
+    CocoaPods)
+      pod lib lint --quick --allow-warnings
+      ;;
+    *)
+      echo 2>&1 "Usage: $0 <Mac|iOS|tvOS|watchOS|CocoaPods>"
+      exit 1
+      ;;
+  esac
+}
+
+bootstrap "$@"
+build "$@"