Added missing copyright headers

Author: roulpriya

src/toolchain/toolchain.ts

@@ -548,9 +548,6 @@ export class SwiftToolchain {
                         break;
                     }
                     default: {
-                        // use `type swift` to find `swift`. Run inside /bin/sh to ensure
-                        // we get consistent output as different shells output a different
-                        // format. Tried running with `-p` but that is not available in /bin/sh
                         swift = await findBinaryPath("swift");
                         break;
                     }

src/utilities/shell.ts

@@ -1,5 +1,22 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the VS Code Swift open source project
+//
+// Copyright (c) 2025 the VS Code Swift project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of VS Code Swift project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
 import { execFile } from "./utilities";
 
+// use `type swift` to find `swift`. Run inside /bin/sh to ensure
+// we get consistent output as different shells output a different
+// format. Tried running with `-p` but that is not available in /bin/sh
 export async function findBinaryPath(binaryName: string): Promise<string> {
     const { stdout, stderr } = await execFile("/bin/sh", [
         "-c",

test/unit-tests/utilities/shell.test.ts

@@ -1,3 +1,17 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the VS Code Swift open source project
+//
+// Copyright (c) 2025 the VS Code Swift project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of VS Code Swift project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
 import { expect } from "chai";
 import { findBinaryPath } from "../../../src/utilities/shell";