fix(server): make remote updates rollback-safe

apps/server/package.json

@@ -16,7 +16,7 @@
   "type": "module",
   "scripts": {
     "dev": "node --watch src/bin.ts",
-    "build:bundle": "vp pack",
+    "build:bundle": "vp pack && vp pack src/service-launcher.ts --out-dir dist --no-clean",
     "start": "node dist/bin.mjs",
     "typecheck": "tsgo --noEmit",
     "test": "vp test run"

apps/server/scripts/cli.ts

@@ -223,7 +223,11 @@ const publishCmd = Command.make(
       const packageJsonPath = path.join(serverDir, "package.json");
 
       // Assert build assets exist
-      for (const relPath of ["dist/bin.mjs", "dist/client/index.html"]) {
+      for (const relPath of [
+        "dist/bin.mjs",
+        "dist/service-launcher.mjs",
+        "dist/client/index.html",
+      ]) {
         const abs = path.join(serverDir, relPath);
         if (!(yield* fs.exists(abs))) {
           return yield* new ServerCliBuildAssetMissingError({ assetPath: abs });

apps/server/src/bin.ts

@@ -15,6 +15,7 @@ import { sharedServerCommandFlags } from "./cli/config.ts";
 import { projectCommand } from "./cli/project.ts";
 import { runServerCommand, serveCommand, startCommand } from "./cli/server.ts";
 import { serviceCommand } from "./cli/service.ts";
+import { servicePreflightCommand } from "./cli/servicePreflight.ts";
 
 const CliRuntimeLayer = Layer.mergeAll(NodeServices.layer, NetService.layer);
 
@@ -53,6 +54,7 @@ export const makeCli = ({ cloudEnabled = hasCloudPublicConfig } = {}) =>
       authCommand,
       projectCommand,
       serviceCommand,
+      servicePreflightCommand,
       cloudEnabled ? connectCommand : connectUnavailableCommand,
     ]),
   );

apps/server/src/cli/servicePreflight.ts

@@ -0,0 +1,17 @@
+import * as Console from "effect/Console";
+import * as Effect from "effect/Effect";
+import { Command, Flag } from "effect/unstable/cli";
+
+import { runServicePreflight } from "../cloud/servicePreflight.ts";
+
+export const servicePreflightCommand = Command.make("__service-preflight", {
+  databasePath: Flag.string("database-path"),
+  launcherProtocol: Flag.integer("launcher-protocol"),
+}).pipe(
+  Command.withHidden,
+  Command.withHandler(({ databasePath, launcherProtocol }) =>
+    Console.log(JSON.stringify(runServicePreflight({ databasePath, launcherProtocol }))).pipe(
+      Effect.asVoid,
+    ),
+  ),
+);