Merge pull request #76 from kareman/Support_older_macOS

Support older macOS

Author: kareman

Package.swift

@@ -3,9 +3,6 @@ import PackageDescription
 
 let package = Package(
 	name: "SwiftShell",
-	platforms: [
-		.macOS(.v10_13),
-	],
 	products: [
 		.library(
 			name: "SwiftShell",

Sources/SwiftShell/Command.swift

@@ -73,10 +73,18 @@ extension CommandRunning {
 
 		let process = Process()
 		process.arguments = args
-		process.executableURL = URL(fileURLWithPath: path(for: executable))
+		if #available(OSX 10.13, *) {
+			process.executableURL = URL(fileURLWithPath: path(for: executable))
+		} else {
+			process.launchPath = path(for: executable)
+		}
 
 		process.environment = context.env
-		process.currentDirectoryURL = URL(fileURLWithPath: context.currentdirectory, isDirectory: true)
+		if #available(OSX 10.13, *) {
+			process.currentDirectoryURL = URL(fileURLWithPath: context.currentdirectory, isDirectory: true)
+		} else {
+			process.currentDirectoryPath = context.currentdirectory
+		}
 
 		process.standardInput = context.stdin.filehandle
 		process.standardOutput = context.stdout.filehandle
@@ -399,9 +407,9 @@ extension CommandRunning {
 	- parameter executable: path to an executable file.
 	- parameter args:       arguments to the executable.
 	- throws:
-		`CommandError.returnedErrorCode(command: String, errorcode: Int)` if the exit code is anything but 0.
+	`CommandError.returnedErrorCode(command: String, errorcode: Int)` if the exit code is anything but 0.
 
-		`CommandError.inAccessibleExecutable(path: String)` if 'executable’ turned out to be not so executable after all.
+	`CommandError.inAccessibleExecutable(path: String)` if 'executable’ turned out to be not so executable after all.
 	*/
 	public func runAndPrint(_ executable: String, _ args: Any ...) throws {
 		let stringargs = args.flatten().map(String.init(describing:))
@@ -458,7 +466,7 @@ Runs executable and prints output and errors.
 - parameter args: arguments to the executable.
 - throws: `CommandError.returnedErrorCode(command: String, errorcode: Int)` if the exit code is anything but 0.
 
-	`CommandError.inAccessibleExecutable(path: String)` if 'executable’ turned out to be not so executable after all.
+`CommandError.inAccessibleExecutable(path: String)` if 'executable’ turned out to be not so executable after all.
 */
 public func runAndPrint(_ executable: String, _ args: Any ...) throws {
 	return try main.runAndPrint(executable, args)

Sources/SwiftShell/Process.swift

@@ -22,9 +22,17 @@ extension Process {
 		}
 		#endif
 		do {
-			try run()
+			if #available(OSX 10.13, *) {
+				try run()
+			} else {
+				launch()
+			}
 		} catch CocoaError.fileNoSuchFile {
-			throw CommandError.inAccessibleExecutable(path: self.executableURL!.lastPathComponent)
+			if #available(OSX 10.13, *) {
+				throw CommandError.inAccessibleExecutable(path: self.executableURL!.lastPathComponent)
+			} else {
+				throw CommandError.inAccessibleExecutable(path: self.launchPath!)
+			}
 		}
 	}
 
@@ -35,7 +43,12 @@ extension Process {
 	public func finish() throws {
 		/// The full path to the executable + all arguments, each one quoted if it contains a space.
 		func commandAsString() -> String {
-			let path = self.executableURL?.path ?? ""
+			let path: String
+			if #available(OSX 10.13, *) {
+				path = self.executableURL?.path ?? ""
+			} else {
+				path = self.launchPath ?? ""
+			}
 			return (self.arguments ?? []).reduce(path) { (acc: String, arg: String) in
 				return acc + " " + ( arg.contains(" ") ? ("\"" + arg + "\"") : arg )
 			}

SwiftShell.xcodeproj/project.pbxproj

@@ -439,7 +439,6 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_SWIFT_FLAGS = "-DXcode";
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -465,6 +464,7 @@
 				HEADER_SEARCH_PATHS = "$(inherited)";
 				INFOPLIST_FILE = SwiftShell.xcodeproj/SwiftShell_Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(TOOLCHAIN_DIR)/usr/lib/swift/macosx";
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
 				OTHER_LDFLAGS = "$(inherited)";
 				OTHER_SWIFT_FLAGS = "$(inherited) -D DEBUG";
 				PRODUCT_BUNDLE_IDENTIFIER = SwiftShell;
@@ -568,7 +568,6 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				OTHER_SWIFT_FLAGS = "-DXcode";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
@@ -593,6 +592,7 @@
 				HEADER_SEARCH_PATHS = "$(inherited)";
 				INFOPLIST_FILE = SwiftShell.xcodeproj/SwiftShell_Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(TOOLCHAIN_DIR)/usr/lib/swift/macosx";
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
 				OTHER_LDFLAGS = "$(inherited)";
 				OTHER_SWIFT_FLAGS = "$(inherited)";
 				PRODUCT_BUNDLE_IDENTIFIER = SwiftShell;
@@ -698,7 +698,6 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_SWIFT_FLAGS = "-DXcode";
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -746,7 +745,6 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.13;
 				OTHER_SWIFT_FLAGS = "-DXcode";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
@@ -771,6 +769,7 @@
 				HEADER_SEARCH_PATHS = "$(inherited)";
 				INFOPLIST_FILE = SwiftShell.xcodeproj/SwiftShell_Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(TOOLCHAIN_DIR)/usr/lib/swift/macosx";
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
 				OTHER_LDFLAGS = "$(inherited)";
 				OTHER_SWIFT_FLAGS = "$(inherited) -D DEBUG";
 				PRODUCT_BUNDLE_IDENTIFIER = SwiftShell;
@@ -795,6 +794,7 @@
 				HEADER_SEARCH_PATHS = "$(inherited)";
 				INFOPLIST_FILE = SwiftShell.xcodeproj/SwiftShell_Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(TOOLCHAIN_DIR)/usr/lib/swift/macosx";
+				MACOSX_DEPLOYMENT_TARGET = 10.11;
 				OTHER_LDFLAGS = "$(inherited)";
 				OTHER_SWIFT_FLAGS = "$(inherited)";
 				PRODUCT_BUNDLE_IDENTIFIER = SwiftShell;