[Phase 1] Port auto-upgrade POC to main

[alfonso-noriega]

Summary

Ports the auto-upgrade POC from origin/auto-upgrade to main in a productionized form.

• shopify upgrade now prompts the user to opt in to automatic upgrades, then runs the upgrade
• postrun hook calls autoUpgradeIfNeeded() after every command (except upgrade and notifications): auto-upgrades silently for minor/patch bumps, shows a warning for major version changes
• prerun hook replaced warnOnAvailableUpgrade (with its rate-limit wrapper) with a simple non-blocking checkForNewVersionInBackground() — the result is consumed by the postrun hook
• Homebrew detection added to inferPackageManagerForGlobalCLI (via symlink resolution, /cellar/ path, SHOPIFY_HOMEBREW_FORMULA, HOMEBREW_PREFIX)
• getProjectDir() replaces the old npm prefix execa call in currentProcessIsGlobal()
• New versionToAutoUpgrade() guards: CI, pre-release, not-enabled, SHOPIFY_CLI_FORCE_AUTO_UPGRADE override
• autoUpgradeEnabled persisted in conf-store; defaults false

Deferred to separate issues

• SHOPIFY_CLI_NO_AUTO_UPGRADE escape hatch → shop/issues-develop#22364
• Observe metrics → shop/issues-develop#22365
• pnpm v8+ / Homebrew timeout → shop/issues-develop#22366

Test plan

• pnpm vitest run src/public/node/upgrade.test.ts src/public/node/hooks/postrun.test.ts src/public/node/hooks/prerun.test.ts src/public/node/is-global.test.ts src/public/node/version.test.ts — 36/36 pass
• cd packages/cli && pnpm vitest run src/cli/commands/upgrade.test.ts — 1/1 pass
• Full @shopify/cli-kit suite — 119 files, 1232 tests, 0 failures
• Full @shopify/cli suite — 11 files, 18 tests, 0 failures

Tracking

• Issue: shop/issues-develop#22363
• Tech design: Semantic Versioning, Auto-Upgrade, and --force Deprecation

🤖 Generated with Claude Code

[github-actions]

Differences in type declarations

We detected differences in the type declarations generated by Typescript for this branch compared to the baseline ('main' branch). Please, review them to ensure they are backward-compatible. Here are some important things to keep in mind:

• Some seemingly private modules might be re-exported through public modules.
• If the branch is behind main you might see odd diffs, rebase main into this branch.

New type declarations

We found no new type declarations in this PR

Existing type declarations

packages/cli-kit/dist/private/node/conf-store.d.ts

@@ -24,6 +24,7 @@ export interface ConfSchema {
     devSessionStore?: string;
     currentDevSessionId?: string;
     cache?: Cache;
+    autoUpgradeEnabled?: boolean;
 }
 /**
  * Get session.
@@ -125,6 +126,18 @@ interface RunWithRateLimitOptions {
  * @returns true, or undefined if the task was not run.
  */
 export declare function runWithRateLimit(options: RunWithRateLimitOptions, config?: LocalStorage<ConfSchema>): Promise<boolean>;
+/**
+ * Get auto-upgrade preference.
+ *
+ * @returns Whether auto-upgrade is enabled, or undefined if not set.
+ */
+export declare function getAutoUpgradeEnabled(config?: LocalStorage<ConfSchema>): boolean | undefined;
+/**
+ * Set auto-upgrade preference.
+ *
+ * @param enabled - Whether auto-upgrade should be enabled.
+ */
+export declare function setAutoUpgradeEnabled(enabled: boolean, config?: LocalStorage<ConfSchema>): void;
 export declare function getConfigStoreForPartnerStatus(): LocalStorage<Record<string, {
     status: true;
     checkedAt: string;

packages/cli-kit/dist/public/node/fs.d.ts

@@ -1,6 +1,6 @@
 import { OverloadParameters } from '../../private/common/ts/overloaded-parameters.js';
 import { RandomNameFamily } from '../common/string.js';
-import { findUp as internalFindUp } from 'find-up';
+import { findUp as internalFindUp, findUpSync as internalFindUpSync } from 'find-up';
 import { ReadStream, WriteStream } from 'fs';
 import type { Pattern, Options as GlobOptions } from 'fast-glob';
 /**
@@ -335,6 +335,7 @@ export declare function defaultEOL(): EOL;
  * @returns The first path found that matches or  if none could be found.
  */
 export declare function findPathUp(matcher: OverloadParameters<typeof internalFindUp>[0], options: OverloadParameters<typeof internalFindUp>[1]): ReturnType<typeof internalFindUp>;
+export declare function findPathUpSync(matcher: OverloadParameters<typeof internalFindUp>[0], options: OverloadParameters<typeof internalFindUp>[1]): ReturnType<typeof internalFindUpSync>;
 export interface MatchGlobOptions {
     matchBase: boolean;
     noglobstar: boolean;

packages/cli-kit/dist/public/node/is-global.d.ts

@@ -26,6 +26,14 @@ export declare function installGlobalCLIPrompt(): Promise<InstallGlobalCLIPrompt
  * Infers the package manager used by the global CLI.
  *
  * @param argv - The arguments passed to the process.
+ * @param env - The environment variables of the process.
  * @returns The package manager used by the global CLI.
  */
-export declare function inferPackageManagerForGlobalCLI(argv?: string[]): PackageManager;
\ No newline at end of file
+export declare function inferPackageManagerForGlobalCLI(argv?: string[], env?: NodeJS.ProcessEnv): PackageManager;
+/**
+ * Returns the project directory for the given path.
+ *
+ * @param directory - The path to the directory to get the project directory for.
+ * @returns The project directory for the given path.
+ */
+export declare function getProjectDir(directory: string): string | undefined;
\ No newline at end of file

packages/cli-kit/dist/public/node/node-package-manager.d.ts

@@ -25,7 +25,7 @@ export type DependencyType = 'dev' | 'prod' | 'peer';
 /**
  * A union that represents the package managers available.
  */
-export declare const packageManager: readonly ["yarn", "npm", "pnpm", "bun", "unknown"];
+export declare const packageManager: readonly ["yarn", "npm", "pnpm", "bun", "unknown", "homebrew"];
 export type PackageManager = (typeof packageManager)[number];
 /**
  * Returns an abort error that's thrown when the package manager can't be determined.

packages/cli-kit/dist/public/node/upgrade.d.ts

@@ -2,13 +2,34 @@
  * Utility function for generating an install command for the user to run
  * to install an updated version of Shopify CLI.
  *
- * @returns A string with the command to run.
+ * @returns A string with the command to run, or undefined if the package manager cannot be determined.
  */
-export declare function cliInstallCommand(): string;
+export declare function cliInstallCommand(): string | undefined;
+/**
+ * Runs the CLI upgrade using the appropriate package manager.
+ * Determines the install command and executes it.
+ *
+ * @throws Error if the package manager or command cannot be determined.
+ */
+export declare function runCLIUpgrade(): Promise<void>;
+/**
+ * Returns the version to auto-upgrade to, or undefined if auto-upgrade should be skipped.
+ * Auto-upgrade is disabled by default and must be enabled via .
+ * Also skips for CI, pre-release versions, or when no newer version is available.
+ *
+ * @returns The version string to upgrade to, or undefined if no upgrade should happen.
+ */
+export declare function versionToAutoUpgrade(): string | undefined;
 /**
  * Generates a message to remind the user to update the CLI.
  *
  * @param version - The version to update to.
  * @returns The message to remind the user to update the CLI.
  */
-export declare function getOutputUpdateCLIReminder(version: string): string;
\ No newline at end of file
+export declare function getOutputUpdateCLIReminder(version: string): string;
+/**
+ * Prompts the user to enable or disable automatic upgrades, then persists their choice.
+ *
+ * @returns Whether the user chose to enable auto-upgrade.
+ */
+export declare function promptAutoUpgrade(): Promise<boolean>;
\ No newline at end of file

packages/cli-kit/dist/public/node/version.d.ts

@@ -18,4 +18,13 @@ export declare function globalCLIVersion(): Promise<string | undefined>;
  * @param version - The version to check.
  * @returns True if the version is a pre-release version.
  */
-export declare function isPreReleaseVersion(version: string): boolean;
\ No newline at end of file
+export declare function isPreReleaseVersion(version: string): boolean;
+/**
+ * Checks if there is a major version change between two versions.
+ * Pre-release versions (0.0.0-*) are treated as not having a major version change.
+ *
+ * @param currentVersion - The current version.
+ * @param newerVersion - The newer version to compare against.
+ * @returns True if there is a major version change.
+ */
+export declare function isMajorVersionChange(currentVersion: string, newerVersion: string): boolean;
\ No newline at end of file

packages/cli-kit/dist/public/node/hooks/postrun.d.ts

@@ -5,4 +5,10 @@ import { Hook } from '@oclif/core';
  * @returns Whether post run hook has completed.
  */
 export declare function postRunHookHasCompleted(): boolean;
-export declare const hook: Hook.Postrun;
\ No newline at end of file
+export declare const hook: Hook.Postrun;
+/**
+ * Auto-upgrades the CLI after a command completes, if a newer version is available.
+ *
+ * @returns Resolves when the upgrade attempt (or fallback warning) is complete.
+ */
+export declare function autoUpgradeIfNeeded(): Promise<void>;
\ No newline at end of file

packages/cli-kit/dist/public/node/hooks/prerun.d.ts

@@ -11,6 +11,7 @@ export declare function parseCommandContent(cmdInfo: {
     pluginAlias?: string;
 }): CommandContent;
 /**
- * Warns the user if there is a new version of the CLI available
+ * Triggers a background check for a newer CLI version (non-blocking).
+ * The result is cached and consumed by the postrun hook for auto-upgrade.
  */
-export declare function warnOnAvailableUpgrade(): Promise<void>;
\ No newline at end of file
+export declare function checkForNewVersionInBackground(): void;
\ No newline at end of file