refactor: share daemon install cli setup

src/cli/daemon-cli/install.test.ts

@@ -84,8 +84,28 @@ vi.mock("../../commands/daemon-install-helpers.js", () => ({
 
 vi.mock("./shared.js", () => ({
   parsePort: parsePortMock,
+  createDaemonInstallActionContext: (jsonFlag: unknown) => {
+    const json = Boolean(jsonFlag);
+    return {
+      json,
+      stdout: process.stdout,
+      warnings: actionState.warnings,
+      emit: (payload: DaemonActionResponse) => {
+        actionState.emitted.push(payload);
+      },
+      fail: (message: string, hints?: string[]) => {
+        actionState.failed.push({ message, hints });
+      },
+    };
+  },
+  failIfNixDaemonInstallMode: (fail: (message: string, hints?: string[]) => void) => {
+    if (!resolveIsNixModeMock()) {
+      return false;
+    }
+    fail("Nix mode detected; service install is disabled.");
+    return true;
+  },
 }));
-
 vi.mock("../../commands/daemon-runtime.js", () => ({
   DEFAULT_GATEWAY_DAEMON_RUNTIME: "node",
   isGatewayDaemonRuntime: isGatewayDaemonRuntimeMock,
@@ -97,16 +117,6 @@ vi.mock("../../daemon/service.js", () => ({
 
 vi.mock("./response.js", () => ({
   buildDaemonServiceSnapshot: vi.fn(),
-  createDaemonActionContext: vi.fn(() => ({
-    stdout: process.stdout,
-    warnings: actionState.warnings,
-    emit: (payload: DaemonActionResponse) => {
-      actionState.emitted.push(payload);
-    },
-    fail: (message: string, hints?: string[]) => {
-      actionState.failed.push({ message, hints });
-    },
-  })),
   installDaemonServiceAndEmit: installDaemonServiceAndEmitMock,
 }));
 

src/cli/daemon-cli/install.ts

@@ -5,25 +5,21 @@ import {
 } from "../../commands/daemon-runtime.js";
 import { resolveGatewayInstallToken } from "../../commands/gateway-install-token.js";
 import { readBestEffortConfig, resolveGatewayPort } from "../../config/config.js";
-import { resolveIsNixMode } from "../../config/paths.js";
 import { resolveGatewayService } from "../../daemon/service.js";
 import { isNonFatalSystemdInstallProbeError } from "../../daemon/systemd.js";
 import { defaultRuntime } from "../../runtime.js";
 import { formatCliCommand } from "../command-format.js";
+import { buildDaemonServiceSnapshot, installDaemonServiceAndEmit } from "./response.js";
 import {
-  buildDaemonServiceSnapshot,
-  createDaemonActionContext,
-  installDaemonServiceAndEmit,
-} from "./response.js";
-import { parsePort } from "./shared.js";
+  createDaemonInstallActionContext,
+  failIfNixDaemonInstallMode,
+  parsePort,
+} from "./shared.js";
 import type { DaemonInstallOptions } from "./types.js";
 
 export async function runDaemonInstall(opts: DaemonInstallOptions) {
-  const json = Boolean(opts.json);
-  const { stdout, warnings, emit, fail } = createDaemonActionContext({ action: "install", json });
-
-  if (resolveIsNixMode(process.env)) {
-    fail("Nix mode detected; service install is disabled.");
+  const { json, stdout, warnings, emit, fail } = createDaemonInstallActionContext(opts.json);
+  if (failIfNixDaemonInstallMode(fail)) {
     return;
   }
 

src/cli/daemon-cli/shared.ts

@@ -1,3 +1,4 @@
+import { resolveIsNixMode } from "../../config/paths.js";
 import {
   resolveGatewayLaunchAgentLabel,
   resolveGatewaySystemdServiceName,
@@ -12,10 +13,30 @@ import { getResolvedLoggerSettings } from "../../logging.js";
 import { colorize, isRich, theme } from "../../terminal/theme.js";
 import { formatCliCommand } from "../command-format.js";
 import { parsePort } from "../shared/parse-port.js";
+import { createDaemonActionContext } from "./response.js";
 
 export { formatRuntimeStatus };
 export { parsePort };
 
+export function createDaemonInstallActionContext(jsonFlag: unknown) {
+  const json = Boolean(jsonFlag);
+  return {
+    json,
+    ...createDaemonActionContext({ action: "install", json }),
+  };
+}
+
+export function failIfNixDaemonInstallMode(
+  fail: (message: string, hints?: string[]) => void,
+  env: NodeJS.ProcessEnv = process.env,
+): boolean {
+  if (!resolveIsNixMode(env)) {
+    return false;
+  }
+  fail("Nix mode detected; service install is disabled.");
+  return true;
+}
+
 export function createCliStatusTextStyles() {
   const rich = isRich();
   return {

src/cli/node-cli/daemon.ts

@@ -3,7 +3,6 @@ import {
   DEFAULT_NODE_DAEMON_RUNTIME,
   isNodeDaemonRuntime,
 } from "../../commands/node-daemon-runtime.js";
-import { resolveIsNixMode } from "../../config/paths.js";
 import {
   resolveNodeLaunchAgentLabel,
   resolveNodeSystemdServiceName,
@@ -25,13 +24,11 @@ import {
   runServiceStop,
   runServiceUninstall,
 } from "../daemon-cli/lifecycle-core.js";
-import {
-  buildDaemonServiceSnapshot,
-  createDaemonActionContext,
-  installDaemonServiceAndEmit,
-} from "../daemon-cli/response.js";
+import { buildDaemonServiceSnapshot, installDaemonServiceAndEmit } from "../daemon-cli/response.js";
 import {
   createCliStatusTextStyles,
+  createDaemonInstallActionContext,
+  failIfNixDaemonInstallMode,
   formatRuntimeStatus,
   parsePort,
   resolveRuntimeStatusColor,
@@ -89,11 +86,8 @@ function resolveNodeDefaults(
 }
 
 export async function runNodeDaemonInstall(opts: NodeDaemonInstallOptions) {
-  const json = Boolean(opts.json);
-  const { stdout, warnings, emit, fail } = createDaemonActionContext({ action: "install", json });
-
-  if (resolveIsNixMode(process.env)) {
-    fail("Nix mode detected; service install is disabled.");
+  const { json, stdout, warnings, emit, fail } = createDaemonInstallActionContext(opts.json);
+  if (failIfNixDaemonInstallMode(fail)) {
     return;
   }