Tolerate Swift 5

.travis.yml

@@ -1,13 +1,8 @@
 branches:
   only:
     - master
-    - develop
     - /^issue.*$/
 
-notifications:
-  slack:
-    secure: "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"
-
 matrix:
   include:
     - os: linux
@@ -17,21 +12,30 @@ matrix:
       dist: trusty
       sudo: required
       env: SWIFT_SNAPSHOT=4.0.3
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: SWIFT_SNAPSHOT=4.1-DEVELOPMENT-SNAPSHOT-2018-02-26-a
+# Tests fail on Swift 4.2 on Linux.
+#    - os: linux
+#      dist: trusty
+#      sudo: required
+#      env: DOCKER_IMAGE=ubuntu:16.04 SWIFT_SNAPSHOT=4.2.1
+#    - os: linux
+#      dist: trusty
+#      sudo: required
+#      env: DOCKER_IMAGE=ubuntu:16.04 SWIFT_SNAPSHOT=$SWIFT_DEVELOPMENT_SNAPSHOT
     - os: osx
       osx_image: xcode8.3
       sudo: required
     - os: osx
-      osx_image: xcode9
+      osx_image: xcode9.2
       sudo: required
       env: SWIFT_SNAPSHOT=4.0.3
     - os: osx
-      osx_image: xcode9.3beta
+      osx_image: xcode9.4
+      sudo: required
+      env: SWIFT_SNAPSHOT=4.1.2
+    - os: osx
+      osx_image: xcode10.1
       sudo: required
-      env: SWIFT_SNAPSHOT=4.1-DEVELOPMENT-SNAPSHOT-2018-02-26-a
+      env: SWIFT_SNAPSHOT=$SWIFT_DEVELOPMENT_SNAPSHOT
 
 before_install:
   - git clone https://github.com/IBM-Swift/Package-Builder.git

Package@swift-5.swift

@@ -0,0 +1,43 @@
+// swift-tools-version:4.0
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+/**
+ * Copyright IBM Corporation 2016, 2017
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+import PackageDescription
+
+let package = Package(
+    name: "SwiftyJSON",
+    products: [
+        // Products define the executables and libraries produced by a package, and make them visible to other packages.
+        .library(
+            name: "SwiftyJSON",
+            targets: ["SwiftyJSON"]
+        )
+    ],
+    dependencies: [],
+    targets: [
+        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+        // Targets can depend on other targets in this package, and on products in packages which this package depends on.
+        .target(
+            name: "SwiftyJSON",
+            dependencies: []
+        ),
+        .testTarget(
+            name: "SwiftyJSONTests",
+            dependencies: ["SwiftyJSON"]
+        )
+    ]
+)