[CI] Add support for GitHub Actions

.github/workflows/pull_request.yml

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+name: Pull request
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+
+jobs:
+  tests:
+    name: Test
+    uses: swiftlang/github-workflows/.github/workflows/swift_package_test.yml@main
+    with:
+      linux_exclude_swift_versions: '[{"swift_version": "5.9"}, {"swift_version": "5.10"}]'
+      enable_windows_checks: false
+      windows_exclude_swift_versions: '[{"swift_version": "5.9"}]'
+      enable_macos_checks: true
+      macos_exclude_xcode_versions: '[{"xcode_version": "16.0"}, {"xcode_version": "16.1"}]'
+  soundness:
+    name: Soundness
+    uses: swiftlang/github-workflows/.github/workflows/soundness.yml@main
+    with:
+      license_header_check_project_name: "Swift.org"
+      unacceptable_language_check_enabled: false

.license_header_template

@@ -0,0 +1,10 @@
+@@===----------------------------------------------------------------------===@@
+@@
+@@ This source file is part of the Swift.org open source project
+@@
+@@ Copyright (c) YEARS Apple Inc. and the Swift project authors
+@@ Licensed under Apache License v2.0 with Runtime Library Exception
+@@
+@@ See https://swift.org/LICENSE.txt for license information
+@@
+@@===----------------------------------------------------------------------===@@

.licenseignore

@@ -0,0 +1,25 @@
+.gitignore
+**/.gitignore
+.licenseignore
+.gitattributes
+.git-blame-ignore-revs
+.mailfilter
+.mailmap
+.spi.yml
+.swift-format
+.editorconfig
+.github/*
+.build
+*.py
+*.yml
+*.yaml
+*.cmake
+*.cmake.in
+Package.swift
+**/Package.swift
+Package@*.swift
+**/Package@*.swift
+Package.resolved
+**/Package.resolved
+.unacceptablelanguageignore
+ -a*/Snapshots/*

Sources/RegexBenchmark/Benchmark.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 @_spi(RegexBenchmark) import _StringProcessing
 internal import _RegexParser
 import Foundation

Sources/RegexBenchmark/BenchmarkRegistration.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 // This file has lines generated by createBenchmark.py
 // Do not remove the start of registration or end of registration markers
 

Sources/RegexBenchmark/BenchmarkResults.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 import Foundation
 
 extension BenchmarkRunner {

Sources/RegexBenchmark/BenchmarkRunner.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 import Foundation
 @_spi(RegexBenchmark) import _StringProcessing
 

Sources/RegexBenchmark/CLI.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 import ArgumentParser
 
 @main

Sources/RegexBenchmark/Debug.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 import Foundation
 
 protocol Debug {

Sources/RegexBenchmark/Inputs/CSS.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 enum Inputs {}
 
 extension Inputs {

Sources/RegexBenchmark/Inputs/CompilerOutput.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 extension Inputs {
   /// Output of trying to build after deleting `Sources/_StringProcessing/Regex`
   /// Mostly a ton of error messages

Sources/RegexBenchmark/Inputs/Dice.swift

@@ -1,3 +1,13 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
 
 extension Inputs {
   /// Generated by Utils/benchmark-generators/generateDiceNotation.py

Sources/RegexBenchmark/Inputs/Email.swift

@@ -1,3 +1,13 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
 
 extension Inputs {
   /// Generated by Utils/benchmark-generators/generateEmails.py

Sources/RegexBenchmark/Inputs/FSPaths.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 // Successful match FSPaths
 private let pathSuccess = #"""
 ./First/Second/Third/some/really/long/content.extension/more/stuff/OptionLeft

Sources/RegexBenchmark/Inputs/GraphemeBreakData.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 extension Inputs {
   static let graphemeBreakData = """
 # GraphemeBreakProperty-13.0.0.txt

Sources/RegexBenchmark/Inputs/HTML.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 extension Inputs {
   static let swiftOrgHTML = """
 <!DOCTYPE html>

Sources/RegexBenchmark/Inputs/NetworkingData.swift

@@ -1,3 +1,13 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
 
 extension Inputs {
   /// Generated by Utils/benchmark-generators/generateNetworkingData.py

Sources/RegexBenchmark/Inputs/TaggedUnicode.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 extension Inputs {
   static let taggedEmojis = """
   <data> 😽🙄🙉😀😒😛😄😆🙋😂😫😴😋😜🙋😈😈😅🙅😻😴😕😑😇😤😲🙍😈🙈😢😴😟😌😟🙊😴😥😟🙋😰😒😳😩🙀🙂😲🙁😷😯😐😱😩😂😲🙍😏😞😮😍🙍🙁😔😿😹😧😏😤😫😹🙄😇😴😍😎😁😉😿 </data>

Sources/RegexBenchmark/Inputs/URL.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 extension Inputs {
   static let url: String = {
     let element = """

Sources/RegexBenchmark/Suite/BuiltinCC.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 import _StringProcessing
 
 extension BenchmarkRunner {

Sources/RegexBenchmark/Suite/CssRegex.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 import Foundation
 import _StringProcessing
 

Sources/RegexBenchmark/Suite/CustomCharacterClasses.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 import _StringProcessing
 
 extension BenchmarkRunner {

Sources/RegexBenchmark/Suite/DiceNotation.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 import _StringProcessing
 
 extension BenchmarkRunner {

Sources/RegexBenchmark/Suite/EmailRegex.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 import _StringProcessing
 import Foundation
 

Sources/RegexBenchmark/Suite/ErrorMessages.swift

@@ -1,3 +1,14 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2021-2022 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+//
+//===----------------------------------------------------------------------===//
+
 import _StringProcessing
 
 extension BenchmarkRunner {