fix(cli): restart stale clients after updates

packages/cli/test/fixture/restart-child.ts

@@ -0,0 +1,6 @@
+const stateFile = process.argv[2]
+const exit = Number(process.argv[3])
+const count = (await Bun.file(stateFile).exists()) ? Number(await Bun.file(stateFile).text()) : 0
+
+await Bun.write(stateFile, String(count + 1))
+process.exit(exit || (count === 0 ? 75 : 0))

packages/cli/test/launcher.test.ts

@@ -0,0 +1,43 @@
+import { expect, test } from "bun:test"
+import fs from "node:fs/promises"
+import os from "node:os"
+import path from "node:path"
+
+const launcher = path.join(import.meta.dir, "../bin/opencode2.cjs")
+const fixture = path.join(import.meta.dir, "fixture/restart-child.ts")
+
+test("restarts the installed binary once with the original arguments", async () => {
+  const root = await fs.mkdtemp(path.join(os.tmpdir(), "opencode-launcher-"))
+  const state = path.join(root, "count")
+
+  try {
+    const child = Bun.spawn([process.execPath, launcher, fixture, state, "0"], {
+      env: { ...process.env, OPENCODE_BIN_PATH: process.execPath },
+      stdout: "pipe",
+      stderr: "pipe",
+    })
+
+    expect(await child.exited).toBe(0)
+    expect(await Bun.file(state).text()).toBe("2")
+  } finally {
+    await fs.rm(root, { recursive: true, force: true })
+  }
+})
+
+test("bounds automatic restarts", async () => {
+  const root = await fs.mkdtemp(path.join(os.tmpdir(), "opencode-launcher-"))
+  const state = path.join(root, "count")
+
+  try {
+    const child = Bun.spawn([process.execPath, launcher, fixture, state, "75"], {
+      env: { ...process.env, OPENCODE_BIN_PATH: process.execPath },
+      stdout: "pipe",
+      stderr: "pipe",
+    })
+
+    expect(await child.exited).toBe(75)
+    expect(await Bun.file(state).text()).toBe("2")
+  } finally {
+    await fs.rm(root, { recursive: true, force: true })
+  }
+})

packages/cli/test/service.test.ts

@@ -7,6 +7,18 @@ import os from "node:os"
 import path from "node:path"
 import { ServiceConfig } from "../src/services/service-config"
 
+test("only replaces older semantic versions", () => {
+  expect(ServiceConfig.canReplaceVersion("1.0.0", "2.0.0")).toBe(true)
+  expect(ServiceConfig.canReplaceVersion("2.0.0", "1.0.0")).toBe(false)
+  expect(ServiceConfig.canReplaceVersion("1.0.0", "1.0.0")).toBe(false)
+  expect(ServiceConfig.canReplaceVersion("0.0.0-next-9999", "0.0.0-next-15000")).toBe(true)
+  expect(ServiceConfig.canReplaceVersion("0.0.0-next-15000", "0.0.0-next-9999")).toBe(false)
+  expect(ServiceConfig.canReplaceVersion("0.0.0-next-15000.1", "0.0.0-next-15000.2")).toBe(true)
+  expect(ServiceConfig.canReplaceVersion("0.0.0-next-15000.10", "0.0.0-next-15000.9")).toBe(false)
+  expect(ServiceConfig.canReplaceVersion("0.0.0-next-15000.10", "0.0.0-next-15000.10")).toBe(false)
+  expect(ServiceConfig.canReplaceVersion(undefined, "1.0.0")).toBe(true)
+})
+
 test("local channel stores service config with the local service filename", async () => {
   const root = await fs.mkdtemp(path.join(os.tmpdir(), "opencode-service-"))
   try {