computer: Expose bounded filesystem operations - #80
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Mirror readRange on the Workers RPC filesystem facade and have WorkspaceFileStore request fixed-size byte windows instead of streaming and discarding every skipped byte.
Return file size and modification time from ls, and expose limit, offset, and nextOffset so large directories can be read in stable pages.
Record ranged workspace reads and paginated directory metadata with the Computer package that exposes them.
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Stack 2 of 7. Base:
stack/improve-tools-01-dofs-primitives. Head:stack/improve-tools-02-computer-fs-plumbing.Computer's file store previously implemented an offset by streaming from byte zero and discarding everything before it. Paging through a large file could therefore transfer the same prefix repeatedly. Directory listings also omitted useful metadata and had no continuation.
This change carries
readRangethrough the Workers RPC filesystem stub and makesWorkspaceFileStorerequest fixed 64 KiB windows. It also makeslsreturn file size and modification time in bounded, stable pages withnextOffsetwhen more entries remain.Verification
npm run typecheck --workspace @cloudflare/computer npm test --workspace @cloudflare/computer -- src/stub.test.ts src/tools/ai.test.tsThe next stack part builds the complete search and mutation tool set on this bounded facade.