[Performance] Optimize CLI startup and project discovery

[gonzaloriestra]

Performance Optimization: CLI Startup and Project Discovery

This PR implements two small but effective performance improvements targeting the CLI's initial startup and project root discovery.

1. Lazy-load fast-glob in globSync:
   The fs.ts module in cli-kit is a core utility imported by almost every command. By removing the top-level fast-glob import and deferring it until globSync is actually called (using createRequire), we reduce the module's initial execution cost. (Note: the async glob function already uses dynamic import()).

2. Fast-path for getProjectDir:
   The getProjectDir function is called during currentProcessIsGlobal to check if the CLI is running within a project. It previously used globSync for every directory it traversed. By checking for the most common config files (shopify.app.toml, hydrogen.config.js, hydrogen.config.ts) with fileExistsSync first, we bypass the expensive globbing logic and the loading of the globbing library in the vast majority of cases.

Expected Impact:

• Reduced CLI startup time.
• Faster project root discovery.
• Reduced memory footprint during initial startup.

How to test your changes?
Run any Shopify CLI command (e.g., shopify version) to verify it still functions correctly.

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PR created automatically by Jules for task 15894214764489785463 started by @gonzaloriestra

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[gonzaloriestra]

/snapit

[github-actions]

🫰✨ Thanks @gonzaloriestra! Your snapshot has been published to npm.

Test the snapshot by installing your package globally:

pnpm i -g --@shopify:registry=https://registry.npmjs.org @shopify/cli@0.0.0-snapshot-20260508081640

Caution

After installing, validate the version by running shopify version in your terminal.
If the versions don't match, you might have multiple global instances installed.
Use which shopify to find out which one you are running and uninstall it.

[byrichardpowell]

Could we get a performance benchmark or bundle diff before merging?