Boilerplate

Setup Swift package.

.github/workflows/swift.yml

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+name: Build and Test
+
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: "0 9 * * 5"
+
+jobs:
+  linux:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        image:
+          - swift:5.0.3-xenial
+          - swift:5.1.5-xenial
+          - swift:5.2.5-xenial
+          - swift:5.3.2-xenial
+          - swift:5.3.2-bionic
+    container: ${{ matrix.image }}
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+      - name: Build Swift Debug Package
+        run: swift build -c debug
+      - name: Build Swift Release Package
+        run: swift build -c release
+      - name: Run Tests
+        run: swift test
+  nextstep:
+    runs-on: macos-latest
+    steps:
+      - name: Select latest available Xcode
+        uses: maxim-lobanov/setup-xcode@v1.2.1
+        with:
+          xcode-version: 12.2
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+      - name: Build Swift Debug Package
+        run: swift build -c debug
+      - name: Build Swift Release Package
+        run: swift build -c release
+      - name: Run Tests
+        run: swift test

.gitignore

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+# Xcode
+#
+# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
+
+## User settings
+xcuserdata/
+
+## compatibility with Xcode 8 and earlier (ignoring not required starting Xcode 9)
+*.xcscmblueprint
+*.xccheckout
+
+## compatibility with Xcode 3 and earlier (ignoring not required starting Xcode 4)
+build/
+DerivedData/
+*.moved-aside
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+
+## Obj-C/Swift specific
+*.hmap
+
+## App packaging
+*.ipa
+*.dSYM.zip
+*.dSYM
+
+## Playgrounds
+timeline.xctimeline
+playground.xcworkspace
+
+# Swift Package Manager
+#
+# Add this line if you want to avoid checking in source code from Swift Package Manager dependencies.
+# Packages/
+# Package.pins
+# Package.resolved
+# *.xcodeproj
+#
+# Xcode automatically generates this directory with a .xcworkspacedata file and xcuserdata
+# hence it is not needed unless you have added a package configuration file to your project
+# .swiftpm
+
+.build/
+
+# CocoaPods
+#
+# We recommend against adding the Pods directory to your .gitignore. However
+# you should judge for yourself, the pros and cons are mentioned at:
+# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
+#
+# Pods/
+#
+# Add this line if you want to avoid checking in source code from the Xcode workspace
+# *.xcworkspace
+
+# Carthage
+#
+# Add this line if you want to avoid checking in source code from Carthage dependencies.
+# Carthage/Checkouts
+
+Carthage/Build/
+
+# Accio dependency management
+Dependencies/
+.accio/
+
+# fastlane
+#
+# It is recommended to not store the screenshots in the git repo.
+# Instead, use fastlane to re-generate the screenshots whenever they are needed.
+# For more information about the recommended setup visit:
+# https://docs.fastlane.tools/best-practices/source-control/#source-control
+
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots/**/*.png
+fastlane/test_output
+
+# Code Injection
+#
+# After new code Injection tools there's a generated folder /iOSInjectionProject
+# https://github.com/johnno1962/injectionforxcode
+
+iOSInjectionProject/
+
+# hh
+Package.resolved
+xcuserdata
+.docker.build
+.swiftpm
+

Package.swift

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+// swift-tools-version:5.0
+
+import PackageDescription
+
+let package = Package(
+    name: "wren-swift",
+    
+    products: [
+      .library(name: "CWren", targets: [ "Wren" ]),
+      .library(name: "Wren",  targets: [ "Wren" ])
+    ],
+    
+    targets: [
+      .target(name: "CWren", exclude: [ "AUTHORS", "LICENSE" ]),
+      .target(name: "Wren",  dependencies: [ "Cwren" ]),
+      .testTarget(name: "CWrenTests", dependencies: ["Cwren"]),
+      .testTarget(name: "WrenTests",  dependencies: ["Wren"])
+    ]
+)

README.md

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+# swift-wren
+
+A Swift package and wrapper for the [wren](https://wren.io) scripting language.
+
+
+### Who
+
+**swift-wren** is brought to you by
+the
+[Always Right Institute](https://www.alwaysrightinstitute.com)
+and
+[ZeeZide](http://zeezide.de).
+We like 
+[feedback](https://twitter.com/ar_institute), 
+GitHub stars, 
+cool [contract work](http://zeezide.com/en/services/services.html),
+presumably any form of praise you can think of.

Tests/CWrenTests/WrenTests.swift

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+import XCTest
+@testable import CWren
+
+final class CWrenTests: XCTestCase {
+  
+  func testCImport() {
+  }
+
+  static var allTests = [
+    ("testCImport", testCImport)
+  ]
+}

Tests/CWrenTests/XCTestManifests.swift

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+import XCTest
+
+#if !canImport(ObjectiveC)
+public func allTests() -> [XCTestCaseEntry] {
+  return [
+    testCase(CWrenTests.allTests)
+  ]
+}
+#endif

Tests/LinuxMain.swift

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+import XCTest
+
+import CWrenTests
+import WrenTests
+
+var tests = [ XCTestCaseEntry ]()
+tests += CWrenTests.allTests()
+tests += WrenTests .allTests()
+XCTMain(tests)

Tests/WrenTests/WrenTests.swift

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+import XCTest
+@testable import wren_swift
+
+final class wren_swiftTests: XCTestCase {
+    func testExample() {
+        // This is an example of a functional test case.
+        // Use XCTAssert and related functions to verify your tests produce the correct
+        // results.
+        XCTAssertEqual(wren_swift().text, "Hello, World!")
+    }
+
+    static var allTests = [
+        ("testExample", testExample),
+    ]
+}

Tests/WrenTests/XCTestManifests.swift

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+import XCTest
+
+#if !canImport(ObjectiveC)
+public func allTests() -> [XCTestCaseEntry] {
+  return [
+    testCase(WrenTests.allTests)
+  ]
+}
+#endif