From 18e639cd8d0b7817781770681c33d258f208e3fb Mon Sep 17 00:00:00 2001
From: Steven Lambion <steven.lambion@atsid.com>
Date: Fri, 20 Sep 2019 18:28:37 -0700
Subject: [PATCH 1/4] Update toolchain to 5.1

---
 .swift-version | 2 +-
 Package.swift  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.swift-version b/.swift-version
index bf77d54..8336407 100644
--- a/.swift-version
+++ b/.swift-version
@@ -1 +1 @@
-4.2
+5.1
\ No newline at end of file
diff --git a/Package.swift b/Package.swift
index 90d07ca..83a33db 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:4.2
+// swift-tools-version:5.1
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription

From 278750249739944b629787212091b64d41a7aa2a Mon Sep 17 00:00:00 2001
From: Steven Lambion <steven.lambion@atsid.com>
Date: Fri, 20 Sep 2019 18:34:09 -0700
Subject: [PATCH 2/4] Update default swift version to 5.1

---
 Sources/PackageConfig/Package.swift | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Sources/PackageConfig/Package.swift b/Sources/PackageConfig/Package.swift
index aed318f..e88a30e 100644
--- a/Sources/PackageConfig/Package.swift
+++ b/Sources/PackageConfig/Package.swift
@@ -35,19 +35,19 @@ enum Package {
     static private func runXCRun(tool: String) throws -> String {
         let process = Process()
         let pipe = Pipe()
-        
+
         process.launchPath = "/usr/bin/xcrun"
         process.arguments = ["--find", tool]
         process.standardOutput = pipe
-        
+
         debugLog("CMD: \(process.launchPath!) \( ["--find", tool].joined(separator: " "))")
-        
+
         process.launch()
         process.waitUntilExit()
         return String(data: pipe.fileHandleForReading.readDataToEndOfFile(), encoding: .utf8)!
             .trimmingCharacters(in: .whitespacesAndNewlines)
     }
-    
+
     private static func findPath(tool: String) throws -> String {
         let process = Process()
         let pipe = Pipe()
@@ -150,7 +150,7 @@ enum Package {
             }
             return "4_2"
         default:
-            return "5"
+            return "5_1"
         }
     }
 }

From f1210524a95758996489e918ae38c395c0cc3cfe Mon Sep 17 00:00:00 2001
From: Leo Dion <leogdion@brightdigit.com>
Date: Mon, 25 May 2020 13:27:37 -0400
Subject: [PATCH 3/4] added support for swift 5.2+

---
 Sources/PackageConfig/Package.swift | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Sources/PackageConfig/Package.swift b/Sources/PackageConfig/Package.swift
index a21b99d..f35efdb 100644
--- a/Sources/PackageConfig/Package.swift
+++ b/Sources/PackageConfig/Package.swift
@@ -124,10 +124,11 @@ enum Package {
             spmVersionDir = swiftToolsVersion
         }
 
+        let packageDescriptionVersion = swiftToolsVersion?.replacingOccurrences(of: "_", with: ".")
         let libraryPathSPM = swiftPMDir + "/" + spmVersionDir
 
         debugLog("Using SPM version: \(libraryPathSPM)")
-        return ["-L", libraryPathSPM, "-I", libraryPathSPM, "-lPackageDescription", "-package-description-version", swiftToolsVersion ?? "5"]
+        return ["-L", libraryPathSPM, "-I", libraryPathSPM, "-lPackageDescription", "-package-description-version", packageDescriptionVersion ?? "5.2"]
     }
 
     private static func getSwiftToolsVersion() -> String? {
@@ -136,7 +137,7 @@ enum Package {
         }
 
         let range = NSRange(location: 0, length: contents.count)
-        guard let regex = try? NSRegularExpression(pattern: "^// swift-tools-version:(?:(\\d)\\.(\\d)(?:\\.\\d)?)$"),
+        guard let regex = try? NSRegularExpression(pattern: "^// swift-tools-version:(?:(\\d)\\.(\\d)(?:\\.\\d)?)"),
             let match = regex.firstMatch(in: contents, options: [], range: range),
             let majorRange = Range(match.range(at: 1), in: contents), let major = Int(contents[majorRange]),
             let minorRange = Range(match.range(at: 2), in: contents), let minor = Int(contents[minorRange])
@@ -151,7 +152,7 @@ enum Package {
             }
             return "4_2"
         default:
-            return "5_1"
+            return "\(major)_\(minor)"
         }
     }
 }

From 0177184c5f3f2dfce1c80bccd8d6c1732fd5d6f0 Mon Sep 17 00:00:00 2001
From: leogdion <leogdion@brightdigit.com>
Date: Wed, 27 May 2020 14:15:56 -0400
Subject: [PATCH 4/4] adding back support Swift 4.2

* Update .swift-version
* Update Package.swift
---
 .swift-version | 2 +-
 Package.swift  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.swift-version b/.swift-version
index 8336407..bf77d54 100644
--- a/.swift-version
+++ b/.swift-version
@@ -1 +1 @@
-5.1
\ No newline at end of file
+4.2
diff --git a/Package.swift b/Package.swift
index 83a33db..90d07ca 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.1
+// swift-tools-version:4.2
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription