Merge pull request #4 from PromiseKit/swiftpm-package-swift-update

Add Package.swift 4.2 format

Author: mxcl

.travis.yml

@@ -4,6 +4,7 @@ branches:
 stages:
   - lint
   - carthage
+  - swiftpm
   - test
 jobs:
   include:
@@ -33,7 +34,7 @@ jobs:
       env: SWIFT=3.3
       name: pod lib lint --swift-version=3.3
     - <<: *pod
-      osx_image: xcode10
+      osx_image: xcode10.1
       env: SWIFT=3.4
       name: pod lib lint --swift-version=3.4
     - <<: *pod
@@ -45,12 +46,12 @@ jobs:
       env: SWIFT=4.1
       name: pod lib lint --swift-version=4.1
     - <<: *pod
-      osx_image: xcode10
+      osx_image: xcode10.1
       env: SWIFT=4.2
       name: pod lib lint --swift-version=4.2
 
     - stage: carthage
-      osx_image: xcode10
+      osx_image: xcode10.1
       name: Carthage / watchOS
       os: osx
       language: objective-c
@@ -59,10 +60,24 @@ jobs:
       cache:
         directories:
         - Carthage
-
+    
+    - &swiftpm
+      stage: swiftpm
+      osx_image: xcode10.1
+      name: swift build (swift-4.2)
+      os: osx
+      language: objective-c
+      script: swift build -Xswiftc -target -Xswiftc x86_64-apple-macosx10.12
+    - <<: *swiftpm
+      osx_image: xcode9.4
+      name: swift build (swift-4.1)
+    - <<: *swiftpm
+      osx_image: xcode9.2
+      name: swift build (swift-4.0)
+      
     - &test
       stage: test
-      osx_image: xcode10
+      osx_image: xcode10.1
       name: macOS Tests
       env: DST='arch=x86_64' PLAT=macOS
       os: osx

Package@swift-4.2.swift

@@ -0,0 +1,26 @@
+// swift-tools-version:4.2
+import PackageDescription
+
+let name = "PMKCloudKit"
+
+let pkg = Package(name: name)
+pkg.products = [
+    .library(name: name, targets: [name]),
+]
+pkg.swiftLanguageVersions = [.v3, .v4, .v4_2]
+pkg.dependencies = [
+	.package(url: "https://github.com/mxcl/PromiseKit.git", from: "6.0.0")
+]
+
+let target: Target = .target(name: name)
+target.path = "Sources"
+target.exclude = [
+	"CKContainer+AnyPromise.h",
+	"CKDatabase+AnyPromise.h",
+	"\(name).h",
+	"CKContainer+AnyPromise.m",
+	"CKDatabase+AnyPromise.m"
+]
+target.dependencies = ["PromiseKit"]
+
+pkg.targets = [target]