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a4711b88dd
## Why `fs/readFile` buffers the entire file in one response, which makes large remote reads expensive and prevents callers from applying backpressure. We need an opt-in streaming path with bounded block sizes while preserving the existing single-call API for small and sandboxed reads. ## What changed - Add `ExecServerClient::stream`, returning a named `FileReadStream` that implements `futures::Stream` and yields immutable 1 MiB byte blocks. - Add internal `fs/open`, `fs/readBlock`, and `fs/close` RPCs. `fs/readBlock` accepts an explicit offset and length. - Keep unsandboxed files open between block reads, cap open handles per connection, and clean them up on EOF, error, stream drop, explicit close, or connection shutdown. - Reject platform-sandboxed streaming opens instead of turning the one-shot sandbox helper into a persistent server. Existing `fs/readFile` behavior is unchanged. ## Testing - `just test -p codex-exec-server` - Integration coverage for 1 MiB chunking, exact block-boundary EOF, sandbox rejection, and continued reads from the opened file after path replacement. - Handle-manager coverage for non-sequential offsets, variable block lengths, the 128-handle limit, and capacity release after close.
21 lines
433 B
TOML
21 lines
433 B
TOML
[package]
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name = "codex-file-system"
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version.workspace = true
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edition.workspace = true
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license.workspace = true
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[lints]
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workspace = true
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[dependencies]
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bytes = { workspace = true }
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codex-protocol = { workspace = true }
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codex-utils-absolute-path = { workspace = true }
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codex-utils-path-uri = { workspace = true }
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futures = { workspace = true }
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serde = { workspace = true, features = ["derive"] }
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[lib]
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test = false
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doctest = false
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