[aversini]

Introduce a persistent SQLite cache for bundlecheck using better-sqlite3 (packages and lockfile updated). Added packages/bundlecheck/src/cache.ts implementing init/get/set/clear/close, key normalization, FIFO eviction (max 100 entries) and helper functions. Integrate cache into CLI and trend flows: compute normalized cache keys (resolving latest, using exported getExternals), read from cache unless --force, store results after bundling, and add a displayResult helper for formatted output. Add a --force flag to defaults and parse to bypass cache. Export getExternals from bundler. Add comprehensive tests (cache.test.ts) and adjust trend tests to mock cache to avoid interference.

[Copilot]

Pull request overview

This pull request introduces a persistent SQLite-based caching mechanism for bundle size results in the bundlecheck tool. The cache stores results keyed by package name, version, exports, platform, gzip level, externals configuration, and noExternal flag. The implementation includes automatic FIFO eviction when the cache exceeds 100 entries and adds a --force flag to bypass the cache.

Changes:

• Added SQLite caching with better-sqlite3 to store and retrieve bundle check results, reducing redundant package installations and bundling operations
• Integrated cache lookups into both single-package checks and trend analysis workflows
• Added --force flag to allow users to bypass the cache and force fresh calculations

Reviewed changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated 15 comments.

Show a summary per file

File	Description
pnpm-lock.yaml	Added better-sqlite3 (12.6.2) and @types/better-sqlite3 (7.6.13) with their transitive dependencies
packages/bundlecheck/package.json	Added better-sqlite3 as a production dependency and @types/better-sqlite3 as a dev dependency
packages/bundlecheck/src/cache.ts	New file implementing cache initialization, normalization, CRUD operations (get/set/clear/close), FIFO eviction logic, and helper functions
packages/bundlecheck/src/bundler.ts	Exported getExternals function to support cache key computation in other modules
packages/bundlecheck/src/defaults.ts	Added force: false to default flags configuration
packages/bundlecheck/src/parse.ts	Added --force/-f flag definition with description and example usage
packages/bundlecheck/src/bundlecheck.ts	Integrated cache with version resolution for "latest", cache key computation, cache lookup before bundling, cache storage after bundling, and extracted displayResult helper function
packages/bundlecheck/src/trend.ts	Integrated cache into trend analysis with per-version cache checks and storage, respecting the --force flag
packages/bundlecheck/src/tests/cache.test.ts	Comprehensive test suite for cache functionality including normalization, CRUD operations, eviction, and edge cases
packages/bundlecheck/src/tests/trend.test.ts	Added cache module mocks to prevent test interference

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported