From 92a8368e4ef604afa30b83f5ec4d916d8b79b858 Mon Sep 17 00:00:00 2001
From: ZauberNerd <zaubernerd@zaubernerd.de>
Date: Mon, 21 Aug 2023 18:19:11 +0200
Subject: [PATCH] Build as single executable application

This commit adds a build script to package the `devcontainer` CLI as a
single executable application using the new (and experimental) Node.js
feature of the same name.
https://nodejs.org/api/single-executable-applications.html

Distributing the devcontainer CLI as a single executable application
allows to use it on systems where Node.js is not installed.
For example on immutable systems like Fedora Silverblue or
openSUSE MicroOS.
---
 build/single-executable.js | 49 ++++++++++++++++++++++++++++++++++++++
 package.json               |  1 +
 2 files changed, 50 insertions(+)
 create mode 100644 build/single-executable.js

diff --git a/build/single-executable.js b/build/single-executable.js
new file mode 100644
index 000000000..5a3870045
--- /dev/null
+++ b/build/single-executable.js
@@ -0,0 +1,49 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+"use strict";
+
+const fs = require("fs");
+const cp = require("child_process");
+
+/**
+ * Create a single executable file for the devcontainer CLI.
+ * https://nodejs.org/api/single-executable-applications.html
+ */
+
+process.chdir("dist/spec-node");
+
+const name = "devcontainer";
+const binary = `${name}${process.platform === "win32" ? ".exe" : ""}`;
+
+fs.copyFileSync(process.execPath, binary);
+
+const config = {
+	main: "devContainersSpecCLI.js",
+	output: `prepared.blob`,
+};
+
+fs.writeFileSync("config.json", JSON.stringify(config));
+
+cp.spawnSync(process.execPath, ["--experimental-sea-config", "config.json"], {
+	stdio: "inherit",
+});
+
+cp.spawnSync(
+	"npx",
+	[
+		"--yes",
+		"postject",
+		binary,
+		"NODE_SEA_BLOB",
+		config.output,
+		"--sentinel-fuse",
+		"NODE_SEA_FUSE_fce680ab2cc467b6e072b8b5df1996b2",
+		...(process.platform === "darwin"
+			? ["--macho-segment-name", "NODE_SEA"]
+			: []),
+	],
+	{ stdio: "inherit" }
+);
diff --git a/package.json b/package.json
index 127586195..78ec6a8f4 100644
--- a/package.json
+++ b/package.json
@@ -37,6 +37,7 @@
 		"definitions-clean": "rimraf dist/node_modules/vscode-dev-containers",
 		"definitions-copy": "copyfiles \"node_modules/vscode-dev-containers/container-features/{devcontainer-features.json,feature-scripts.env,fish-debian.sh,homebrew-debian.sh,install.sh}\" dist",
 		"npm-pack": "npm pack",
+		"build-executable": "node build/single-executable.js",
 		"clean": "npm-run-all clean-dist clean-built",
 		"clean-dist": "rimraf dist",
 		"clean-built": "rimraf built",