mono - chore: upgrade TypeScript to 6 (breaking)

[jaredwray]

Please check if the PR fulfills these requirements

• Followed the Contributing guidelines and Code of Conduct
• Tests for the changes have been added (for bug fixes/features) with 100% code coverage. — N/A: build-tooling major upgrade with no source changes; existing suites still pass at 100% coverage where runnable in this environment.

What kind of change does this PR introduce?

Maintenance (chore) — major upgrade of the TypeScript compiler 5.9.3 → 6.0.3 across all 9 packages that declare it. This is a devDependency/build-tooling change; the emitted JS and .d.ts are unchanged in shape, so there is no impact for consumers of the published @cacheable/* packages.

Versions

• typescript ^5.9.3 → ^6.0.3 (cacheable, cache-manager, cacheable-request, file-entry-cache, flat-cache, @cacheable/memory, @cacheable/net, @cacheable/node-cache, @cacheable/utils)

Breaking notes

• TS6 requires an explicit rootDir when the output layout depends on it (error TS5011). This surfaced only in cacheable-request, the one package that builds with tsc directly. Fix: added "rootDir": "./src" to packages/cacheable-request/tsconfig.build.json. This is behavior-preserving — it makes explicit what TypeScript previously inferred as the common source directory.
• The tsdown-built packages that still use the now-deprecated moduleResolution: "node" / baseUrl build cleanly — those options don't error under TS 6 through tsdown's declaration generation, so I left them untouched here. Modernizing them (node → bundler, dropping baseUrl) is TS 7 preparation and belongs in its own change, not this compiler bump.
• TS 6.0's changed defaults (strict, types: [], module, target) have no effect here because every package sets those options explicitly in its tsconfig.

Verification

• pnpm build passes (all 9 packages, incl. the tsc build of cacheable-request)

• node scripts/test-build.mjs (build-output validation: runtime + publint + attw on the TS6-generated .d.ts) passes for all packages

• pnpm test — every package passes at 100% coverage except the same 3 tests that fail on main and are specific to this sandbox (not caused by this change):

  • cacheable-request › return with url and port — real request to external mockhttp.org:8080, unreachable here (the :80 variant passes).
  • file-entry-cache › should return a file descriptor with checksum and error and normalizeEntries() › should return all entries — both chmod 0o000 a file to force a read error, but this sandbox runs as root, which bypasses permission bits.

  All three pass on GitHub CI (non-root runner, full network).

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Generated by Claude Code

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	typescript@​5.9.3 ⏵ 6.0.3	+1		+1

View full report

[gemini-code-assist]

Code Review

This pull request upgrades the TypeScript dependency from version 5.9.3 to 6.0.3 across multiple packages and updates the lockfile. It also adds the rootDir compiler option to the build configuration of cacheable-request. There are no review comments, and I have no feedback to provide.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (df417aa) to head (00ff38e).

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #1672   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           29        29           
  Lines         3504      3504           
  Branches       794       795    +1     
=========================================
  Hits          3504      3504           

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Fix TS6-deprecated config before bumping compiler

With this TypeScript 6 bump, the package tsconfig for this package is no longer valid: tsc -p packages/cache-manager/tsconfig.json --noEmit reports TS5107 for moduleResolution: "node" and TS5101 for baseUrl unless ignoreDeprecations: "6.0" is set. The same deprecated options are still present in cacheable, flat-cache, memory, net, and node-cache, so any TS6 declaration/type-check path that reads those package configs will fail before it reaches source type checking.

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[chatgpt-codex-connector]

Add explicit Node types for TS6 builds

TypeScript 6 now defaults compilerOptions.types to an empty list, but this package's tsconfig leaves types unset while src/index.ts imports node:* modules and uses process/NodeJS.ErrnoException. Even with @types/node visible in the workspace, TS6 will not load those declarations automatically, so declaration builds fail with TS2591/TS2503 until the config explicitly includes Node types; @cacheable/net has the same pattern for Buffer/BufferEncoding.

Useful? React with 👍 / 👎.