Apply runtime library workaround for snapshot toolchains on macOS (#484)

* patch mac snapshot

* comment

* set DYLD_LIBRARY_PATH if need

* reset stdin pgrp

* revert wip default toolchain

* fix test

* desudo

* avoid setting nil

* link RegexParser

* swift_StringProcessing

* preopen on wasmtime

* fix bug in test runner option

* apply patch also command mode

* cap hack version

Sources/CartonCore/Environment.swift

@@ -63,6 +63,12 @@ public enum Environment: String, CaseIterable {
     // for future dynamic linking support.
     parameters.otherSwiftcFlags += ["-static-stdlib"]
 
+    #if compiler(>=6.0) && compiler(<6.1)
+    // A workaround for the linker issue.
+    // https://github.com/swiftwasm/swift/issues/5580
+    parameters.otherLinkerFlags += ["-lswift_RegexParser"]
+    #endif
+
     switch self {
     case .command: break
     case .node, .browser:

Sources/CartonCore/FoundationProcessEx.swift

@@ -71,12 +71,16 @@ extension Foundation.Process {
   public static func checkRun(
     _ executableURL: URL,
     arguments: [String],
+    environment: [String: String]? = nil,
     printsLoadingMessage: Bool = true,
     forwardExit: Bool = false
   ) throws {
     let process = Foundation.Process()
     process.executableURL = executableURL
     process.arguments = arguments
+    if let environment {
+      process.environment = environment
+    }
     try process.checkRun(
       printsLoadingMessage: printsLoadingMessage,
       forwardExit: forwardExit

Sources/CartonDriver/CartonDriverCommand.swift

@@ -135,10 +135,10 @@ func pluginSubcommand(subcommand: String, argv0: String, arguments: [String]) as
 
   let terminal = InteractiveWriter.stdout
   let toolchainSystem = try ToolchainSystem(fileSystem: localFileSystem)
-  let (swiftPath, _) = try await toolchainSystem.inferSwiftPath(terminal)
+  let swiftPath = try await toolchainSystem.inferSwiftPath(terminal)
   let extraArguments = arguments
 
-  let swiftExec = URL(fileURLWithPath: swiftPath.pathString)
+  let swiftExec = URL(fileURLWithPath: swiftPath.swift.pathString)
   let pluginArguments = try derivePackageCommandArguments(
     swiftExec: swiftExec,
     subcommand: subcommand,
@@ -146,8 +146,19 @@ func pluginSubcommand(subcommand: String, argv0: String, arguments: [String]) as
     extraArguments: extraArguments
   )
 
+  var env: [String: String] = ProcessInfo.processInfo.environment
+  if ToolchainSystem.isSnapshotVersion(swiftPath.verison),
+     swiftPath.toolchain.extension == "xctoolchain"
+  {
+    env["DYLD_LIBRARY_PATH"] = swiftPath.toolchain.appending(
+      components: ["usr", "lib", "swift", "macosx"]
+    ).pathString
+  }
+
   try Foundation.Process.checkRun(
-    swiftExec, arguments: pluginArguments,
+    swiftExec, 
+    arguments: pluginArguments,
+    environment: env,
     forwardExit: true
   )
 }
@@ -175,9 +186,10 @@ public func main(arguments: [String]) async throws {
   case "package":
     let terminal = InteractiveWriter.stdout
     let toolchainSystem = try ToolchainSystem(fileSystem: localFileSystem)
-    let (swiftPath, _) = try await toolchainSystem.inferSwiftPath(terminal)
+    let swiftPath = try await toolchainSystem.inferSwiftPath(terminal)
+
     try Foundation.Process.checkRun(
-      URL(fileURLWithPath: swiftPath.pathString),
+      URL(fileURLWithPath: swiftPath.swift.pathString),
       arguments: ["package"] + arguments.dropFirst(),
       forwardExit: true
     )

Sources/CartonFrontend/Commands/TestRunners/CommandTestRunner.swift

@@ -36,9 +36,16 @@ struct CommandTestRunner: TestRunner {
     var arguments = [program, testFilePath.pathString]
     if listTestCases {
       arguments.append(contentsOf: ["--", "-l"])
-    } else if !testCases.isEmpty {
-      arguments.append("--")
-      arguments.append(contentsOf: testCases)
+    } else {
+      let programName = (program as NSString).lastPathComponent
+      if programName == "wasmtime" {
+        arguments += ["--dir", "."]
+      }
+
+      if !testCases.isEmpty {
+        arguments.append("--")
+        arguments.append(contentsOf: testCases)
+      }
     }
     try await Process.run(arguments, parser: TestsParser(), terminal)
   }

Sources/CartonHelpers/DefaultToolchain.swift

@@ -12,7 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#if compiler(>=5.10)
+#if compiler(>=6.0)
+public let defaultToolchainVersion = "wasm-6.0-SNAPSHOT-2024-06-08-a"
+#elseif compiler(>=5.10)
 public let defaultToolchainVersion = "wasm-5.10.0-RELEASE"
 #else
 public let defaultToolchainVersion = "wasm-5.9.2-RELEASE"

Sources/CartonHelpers/Process+run.swift

@@ -94,7 +94,6 @@ extension Process {
 
           switch result.map(\.exitStatus) {
           case .success(.terminated(code: EXIT_SUCCESS)):
-            terminal.write("\n")
             if let parser = parser {
               if parser.parsingConditions.contains(.success) {
                 parser.parse(stdoutBuffer, terminal)
@@ -103,7 +102,7 @@ extension Process {
               terminal.write(stdoutBuffer)
             }
             terminal.write(
-              "\n`\(processName)` process finished successfully\n",
+              "`\(processName)` process finished successfully\n",
               inColor: .green,
               bold: false
             )

Sources/SwiftToolchain/ToolchainInstallation.swift

@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+import CartonCore
 import CartonHelpers
 import Foundation
 
@@ -65,6 +66,8 @@ extension ToolchainSystem {
         stream: stdoutStream,
         header: "Downloading the archive"
       )
+      defer { terminal.write("\n") }
+      
       var previouslyReceived = 0
       for try await progress in fileDownload.progressStream {
         guard progress.receivedBytes - previouslyReceived >= (progress.totalOrEstimatedBytes / 100)
@@ -109,6 +112,32 @@ extension ToolchainSystem {
     terminal.logLookup("Unpacking the archive: ", arguments.joined(separator: " "))
     try await Process.run(arguments, terminal)
 
+    if ext == "pkg", Self.isSnapshotVersion(version) {
+      try await patchSnapshotForMac(path: installationPath, terminal: terminal)
+    }
+
     return installationPath
   }
+
+  func patchSnapshotForMac(path: AbsolutePath, terminal: InteractiveWriter) async throws {
+    let binDir = path.appending(components: ["usr", "bin"])
+    
+    terminal.write(
+      "To avoid issues with the snapshot, the toolchain will be re-signed.\n",
+      inColor: .yellow
+    )
+
+    for file in try fileSystem.traverseRecursively(binDir) {
+      guard fileSystem.isFile(file) else { continue }
+
+      try Foundation.Process.checkRun(
+        URL(fileURLWithPath: "/usr/bin/codesign"),
+        arguments: [
+          "--force",
+          "--preserve-metadata=identifier,entitlements",
+          "--sign", "-", file.pathString
+        ]
+      )
+    }
+  }
 }

Sources/SwiftToolchain/ToolchainManagement.swift

@@ -235,13 +235,19 @@ public class ToolchainSystem {
     }
   }
 
+  public struct SwiftPath {
+    public var verison: String
+    public var swift: AbsolutePath
+    public var toolchain: AbsolutePath
+  }
+
   /** Infer `swift` binary path matching a given version if any is present, or infer the
    version from the `.swift-version` file. If neither version is installed, download it.
    */
   public func inferSwiftPath(
     from versionSpec: String? = nil,
     _ terminal: InteractiveWriter
-  ) async throws -> (AbsolutePath, String) {
+  ) async throws -> SwiftPath {
     let specURL = versionSpec.flatMap { (string: String) -> Foundation.URL? in
       guard
         let url = Foundation.URL(string: string),
@@ -254,11 +260,9 @@ public class ToolchainSystem {
     let swiftVersion = try inferSwiftVersion(from: versionSpec, terminal)
 
     for resolver in resolvers {
-      if let path = try checkAndLog(
-        installationPath: resolver.toolchain(for: swiftVersion),
-        terminal
-      ) {
-        return (path, swiftVersion)
+      let toolchain = resolver.toolchain(for: swiftVersion)
+      if let path = try checkAndLog(installationPath: toolchain, terminal) {
+        return SwiftPath(verison: swiftVersion, swift: path, toolchain: toolchain)
       }
     }
 
@@ -291,7 +295,7 @@ public class ToolchainSystem {
       throw ToolchainError.invalidInstallationArchive(installationPath)
     }
 
-    return (path, swiftVersion)
+    return SwiftPath(verison: swiftVersion, swift: path, toolchain: installationPath)
   }
 
   public func fetchAllSwiftVersions() throws -> [String] {
@@ -311,4 +315,8 @@ public class ToolchainSystem {
 
     return version
   }
+
+  public static func isSnapshotVersion(_ version: String) -> Bool {
+    version.contains("SNAPSHOT")
+  }
 }

Tests/CartonCommandTests/FrontendDevServerTests.swift

@@ -82,10 +82,10 @@ final class FrontendDevServerTests: XCTestCase {
 
     if !fs.exists(wasmFile) {
       let tools = try ToolchainSystem(fileSystem: fs)
-      let (builderSwift, _) = try await tools.inferSwiftPath(terminal)
+      let builderSwift = try await tools.inferSwiftPath(terminal)
 
       var args: [String] = [
-        builderSwift.pathString, "build", "--triple", "wasm32-unknown-wasi"
+        builderSwift.swift.pathString, "build", "--triple", "wasm32-unknown-wasi"
       ]
       args += Environment.browser.buildParameters().asBuildArguments()
 

entrypoint/common.ts

@@ -167,7 +167,7 @@ export const WasmRunner = (rawOptions: Options, SwiftRuntime: SwiftRuntimeConstr
 };
 
 const defaultRunnerOptions = (options: Options): Options => {
-  if (options.args != null) {
+  if (options.args == null) {
     options.args = ["main.wasm"];
   }
   return options;