Distribute binaries via npm module

.github/workflows/tag_release.yml

@@ -46,3 +46,11 @@ jobs:
           GOHOSTOS: ${{ env.GOHOSTOS }}
           GOHOSTARCH: ${{ env.GOHOSTARCH }}
           GITHUB_TOKEN: ${{ secrets.RELEASE_GITHUB_TOKEN }}
+      - name: Update npm packages to latest version
+        working-directory: ./npm/@fastly/cli
+        run: npm install && npm version "${{ github.ref_name }}" --allow-same-version
+      - name: Publish npm packages
+        working-directory: ./npm/@fastly
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: for dir in *; do (echo $dir && cd $dir && npm publish); done

.gitignore

@@ -70,3 +70,6 @@ pkg/config/config.toml
 # Ignore commitlint tool
 commitlint.config.js
 callvis.svg
+
+# Ignore generated npm packages
+npm/@fastly/cli-*/

npm/@fastly/cli/LICENSE

@@ -0,0 +1 @@
+../../../LICENSE

npm/@fastly/cli/README.md

@@ -0,0 +1 @@
+../../../README.md

npm/@fastly/cli/fastly.js

@@ -0,0 +1,20 @@
+#!/usr/bin/env node
+import { execFileSync } from "node:child_process";
+
+import { pkgForCurrentPlatform } from "./package-helpers.js";
+
+const pkg = pkgForCurrentPlatform();
+
+let location;
+try {
+  // Check for the binary package from our "optionalDependencies". This
+  // package should have been installed alongside this package at install time.
+  location = (await import(pkg)).default;
+} catch (e) {
+  throw new Error(`The package "${pkg}" could not be found, and is needed by @fastly/cli.
+If you are installing @fastly/cli with npm, make sure that you don't specify the
+"--no-optional" flag. The "optionalDependencies" package.json feature is used
+by @fastly/cli to install the correct binary executable for your current platform.`);
+}
+
+execFileSync(location, process.argv.slice(2), { stdio: "inherit" });

npm/@fastly/cli/index.js

@@ -0,0 +1,17 @@
+import { pkgForCurrentPlatform } from "./package-helpers.js";
+
+const pkg = pkgForCurrentPlatform();
+
+let location;
+try {
+  // Check for the binary package from our "optionalDependencies". This
+  // package should have been installed alongside this package at install time.
+  location = (await import(pkg)).default;
+} catch (e) {
+  throw new Error(`The package "${pkg}" could not be found, and is needed by @fastly/cli.
+    If you are installing @fastly/cli with npm, make sure that you don't specify the
+    "--no-optional" flag. The "optionalDependencies" package.json feature is used
+    by @fastly/cli to install the correct binary executable for your current platform.`);
+}
+
+export default location;

npm/@fastly/cli/package-helpers.js

@@ -0,0 +1,22 @@
+import { platform, arch } from "node:process";
+
+const knownPackages = {
+  "darwin arm64": "@fastly/cli-darwin-arm64",
+  "darwin x64": "@fastly/cli-darwin-x64",
+  "linux arm64": "@fastly/cli-linux-arm64",
+  "linux x64": "@fastly/cli-linux-x64",
+  "linux x64": "@fastly/cli-linux-386",
+  "win32 arm64": "@fastly/cli-win32-arm64",
+  "win32 x64": "@fastly/cli-win32-x64",
+  "win32 x32": "@fastly/cli-win32-386",
+};
+
+export function pkgForCurrentPlatform() {
+  let platformKey = `${platform} ${arch}`;
+  if (platformKey in knownPackages) {
+    return knownPackages[platformKey];
+  }
+  throw new Error(
+    `Unsupported platform: "${platformKey}". "@fastly/cli does not have a precompiled binary for the platform/architecture you are using. You can open an issue on https://github.com/fastly/cli/issues to request for your platform/architecture to be included."`
+  );
+}