fix(cli): prevent repeated updates and npm cache growth

packages/cli/src/services/fixtures/updater.ts

@@ -0,0 +1,58 @@
+import { NodeFileSystem } from "@effect/platform-node"
+import { Global } from "@opencode-ai/util/global"
+import { AppProcess } from "@opencode-ai/util/process"
+import { Effect, FileSystem, Layer, Stream } from "effect"
+import { ChildProcessSpawner } from "effect/unstable/process"
+import assert from "node:assert/strict"
+import path from "node:path"
+import { Updater } from "../updater"
+
+const latest = { version: "0.0.0-beta-17498" }
+const installs: string[] = []
+
+// This fixture runs in its own process; no real update requests or installs occur.
+globalThis.fetch = Object.assign(async () => Response.json(latest), { preconnect() {} })
+
+await Effect.runPromise(
+  Effect.gen(function* () {
+    const fs = yield* FileSystem.FileSystem
+    const directory = yield* fs.makeTempDirectoryScoped({ prefix: "opencode-updater-" })
+    const dependencies = Layer.mergeAll(
+      Layer.succeed(FileSystem.FileSystem, fs),
+      Layer.succeed(
+        Global.Service,
+        Global.make({ home: directory, config: directory, cache: path.join(directory, "cache") }),
+      ),
+      Layer.succeed(AppProcess.Service, {
+        ...ChildProcessSpawner.make(() => Effect.die("Unexpected process spawn")),
+        runStream: () => Stream.die("Unexpected streaming process"),
+        run: (command) => {
+          assert.equal(command._tag, "StandardCommand")
+          if (command.command === "npm" && command.args[0] === "install") {
+            assert.ok(command.args.includes("--global"))
+            installs.push(command.args.at(-1)!)
+          }
+          return Effect.succeed({
+            command: command.command,
+            exitCode: 0,
+            stdout: Buffer.from(command.command === "npm" ? "@opencode-ai/cli" : ""),
+            stderr: Buffer.alloc(0),
+            stdoutTruncated: false,
+            stderrTruncated: false,
+          })
+        },
+      }),
+    )
+    yield* Effect.gen(function* () {
+      const updater = yield* Updater.Service
+      yield* updater.check()
+      assert.deepEqual(installs, ["@opencode-ai/cli@0.0.0-beta-17498"])
+      yield* updater.check()
+      yield* updater.check()
+      assert.deepEqual(installs, ["@opencode-ai/cli@0.0.0-beta-17498"])
+      latest.version = "0.0.0-beta-17499"
+      yield* updater.check()
+      assert.deepEqual(installs, ["@opencode-ai/cli@0.0.0-beta-17498", "@opencode-ai/cli@0.0.0-beta-17499"])
+    }).pipe(Effect.provide(Updater.layer.pipe(Layer.provide(dependencies))))
+  }).pipe(Effect.scoped, Effect.provide(NodeFileSystem.layer)),
+)

packages/cli/src/services/updater-action.ts

@@ -5,9 +5,9 @@ const maximumComponent = "9007199254740991"
 const versionPattern =
   /^v?([0-9]+)\.([0-9]+)\.([0-9]+)(?:-([0-9A-Za-z-]+(?:\.[0-9A-Za-z-]+)*))?(?:\+[0-9A-Za-z-]+(?:\.[0-9A-Za-z-]+)*)?$/
 
-export function action(current: string, latest: string, policy: Policy): Action {
+export function action(current: string, latest: string, policy: Policy, installed = current): Action {
   if (policy === false) return "none"
-  const currentVersion = parseReleaseVersion(current)
+  const currentVersion = parseReleaseVersion(installed)
   const latestVersion = parseReleaseVersion(latest)
   if (!currentVersion || !latestVersion || sameRelease(currentVersion, latestVersion)) return "none"
   // Major upgrades are never installed automatically.

packages/cli/src/services/updater.test.ts

@@ -1,8 +1,30 @@
 import { describe, expect, test } from "bun:test"
+import path from "node:path"
 import { action } from "./updater-action"
 import { decodePolicy } from "./updater"
 
 describe("updater", () => {
+  test("remembers successful installs across checks and accepts the next release", async () => {
+    // Isolate compiled version constants and the update endpoint from other tests.
+    const child = Bun.spawn(
+      [
+        process.execPath,
+        "--define",
+        'OPENCODE_VERSION="0.0.0-next-16473"',
+        "--define",
+        'OPENCODE_CHANNEL="beta"',
+        path.join(import.meta.dir, "fixtures/updater.ts"),
+      ],
+      { env: { ...process.env, OPENCODE_DISABLE_AUTOUPDATE: "" }, stdout: "pipe", stderr: "pipe" },
+    )
+    const [code, stdout, stderr] = await Promise.all([
+      child.exited,
+      new Response(child.stdout).text(),
+      new Response(child.stderr).text(),
+    ])
+    expect(code, stdout + stderr).toBe(0)
+  })
+
   test("reads autoupdate from JSONC", () => {
     expect(decodePolicy('{ // preference\n "autoupdate": "notify",\n}')).toBe("notify")
     expect(decodePolicy('{ "autoupdate": false }')).toBe(false)
@@ -32,6 +54,14 @@ describe("updater", () => {
     expect(action("1.2.3", "1.2.3", true)).toBe("none")
   })
 
+  test("skips an installed update but still accepts the next release", () => {
+    const current = "0.0.0-next-16473"
+    const installed = "0.0.0-beta-17498"
+    expect(action(current, installed, true)).toBe("upgrade")
+    expect(action(current, installed, true, installed)).toBe("none")
+    expect(action(current, "0.0.0-beta-17499", true, installed)).toBe("upgrade")
+  })
+
   test("upgrades when latest is lower (rollback)", () => {
     expect(action("1.2.4", "1.2.3", true)).toBe("upgrade")
   })

packages/cli/src/services/updater.ts

@@ -1,7 +1,7 @@
 import { Global } from "@opencode-ai/util/global"
 import { AppProcess } from "@opencode-ai/util/process"
 import { OPENCODE_CHANNEL, OPENCODE_LOCAL, OPENCODE_VERSION } from "../version"
-import { Context, Duration, Effect, FileSystem, Layer } from "effect"
+import { Context, Duration, Effect, FileSystem, Layer, Ref } from "effect"
 import { ChildProcess } from "effect/unstable/process"
 import { parse, type ParseError } from "jsonc-parser"
 import path from "node:path"
@@ -38,6 +38,7 @@ export const layer = Layer.effect(
     const fs = yield* FileSystem.FileSystem
     const global = yield* Global.Service
     const appProcess = yield* AppProcess.Service
+    const installed = yield* Ref.make(OPENCODE_VERSION)
     const channel = OPENCODE_CHANNEL.replace(/[^a-zA-Z0-9._-]/g, "-")
 
     const readPolicy = Effect.fnUntraced(function* () {
@@ -112,18 +113,20 @@ export const layer = Layer.effect(
 
     const upgrade = Effect.fnUntraced(function* (method: Method, version: string) {
       const target = `${packageName}@${version}`
-      const commands: Record<Exclude<Method, "bun" | "curl">, string[]> = {
-        npm: ["npm", "install", "--global", target],
+      const commands: Record<Exclude<Method, "bun" | "curl" | "npm">, string[]> = {
         pnpm: ["pnpm", "add", "--global", `--allow-build=${packageName}`, target],
         yarn: ["yarn", "global", "add", target],
       }
       const result = yield* Effect.scoped(
         Effect.gen(function* () {
-          if (method === "bun") {
-            // Bun does not prune old versions from its shared package cache.
+          if (method === "bun" || method === "npm") {
             yield* fs.makeDirectory(global.cache, { recursive: true })
             const cache = yield* fs.makeTempDirectoryScoped({ directory: global.cache, prefix: "update-" })
-            return yield* run(["bun", "install", "--global", "--trust", "--cache-dir", cache, target], "5 minutes")
+            const command =
+              method === "bun"
+                ? ["bun", "install", "--global", "--trust", "--cache-dir", cache, target]
+                : ["npm", "install", "--global", "--cache", cache, target]
+            return yield* run(command, "5 minutes")
           }
           if (method === "curl") {
             yield* fs.makeDirectory(global.cache, { recursive: true })
@@ -156,18 +159,19 @@ export const layer = Layer.effect(
 
         return yield* Effect.gen(function* () {
           const version = yield* latest()
+          const current = yield* Ref.get(installed)
           yield* Effect.logInfo("update check", {
-            current: OPENCODE_VERSION,
+            current,
             latest: version,
           })
-          const next = action(OPENCODE_VERSION, version, policy)
+          const next = action(OPENCODE_VERSION, version, policy, current)
           if (next === "none") return yield* Effect.logInfo("update check done", { action: "up-to-date" })
-          if (next === "notify")
-            return yield* Effect.logInfo("OpenCode update available", { current: OPENCODE_VERSION, latest: version })
+          if (next === "notify") return yield* Effect.logInfo("OpenCode update available", { current, latest: version })
           const detected = yield* method()
           if (!detected) return yield* Effect.logWarning("automatic update skipped: installation method not found")
           yield* upgrade(detected, version)
-          yield* Effect.logInfo("updated OpenCode", { from: OPENCODE_VERSION, to: version, method: detected })
+          yield* Ref.set(installed, version)
+          yield* Effect.logInfo("updated OpenCode", { from: current, to: version, method: detected })
         })
       },
       Effect.catchCause((cause) => Effect.logWarning("automatic update failed", { cause })),