SellPL
c723efb186
Establishes the cargo workspace and the shared `blocker-core` crate. The engine is deliberately written before any platform code, because CLAUDE.md section 2 makes it the single source of decision truth and M1 acceptance requires it to be pure. **Workspace** — five crates plus a test crate, zero external dependencies. Section 3 requires every crate to justify its binary-size cost, so M0 adds none. [profile.release] is workspace-only (cargo rejects it in members) and carries the section 5 settings that make the 5 MB stripped budget reachable. **Purity contract** — `evaluate(&EngineInput) -> Decision` reads no clock, no disk and no OS API; everything arrives in the input. `tests/purity.rs` enforces this mechanically by asserting blocker-core has zero dependencies, so a stray I/O reach-in fails the build rather than silently making the golden tables useless as a parity contract. Decisions worth calling out: - **Monotonic time is a separate type from wall time.** Section 1.5.3 requires a system date change never to shorten a lock. Keeping them apart makes that structural rather than a rule to remember. - **`start > end` means overnight.** No `crosses_midnight` flag: the comparison already encodes it and a second field is a second way to be wrong. The weekday for a window that started yesterday evening is yesterday's, which `overnight_window_survives_past_midnight` pins down. - **`next_wakeup` is armed over every non-paused schedule, not only active ones.** Filtering to active conditions first would let the daemon sleep straight through the moment a schedule is due to start. - **Allowlist needs the installed-app inventory.** `EngineInput` carries `installed_apps`; an empty slice fails open rather than guessing. - **Wall-clock correction extends, never shortens, and clamps to the 24h cap.** Extending unbounded would satisfy anti-tamper and violate section 1.5.4. - **`cast_possible_truncation` is denied workspace-wide.** Truncating a millisecond counter would corrupt a lock timer. Verified: 22 tests pass, `cargo fmt --check` clean, `cargo clippy -D warnings` clean, stripped release daemon 0.279 MB against the 5 MB budget. Co-Authored-By: Claude Code <noreply@anthropic.com>
23 lines
859 B
TOML
23 lines
859 B
TOML
edition = "2021"
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max_width = 100
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# NOTE ON UNSTABLE OPTIONS
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#
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# `imports_granularity`, `group_imports` and `derive_debug` are nightly-only
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# rustfmt features. rust-toolchain.toml pins stable, so listing them here emits
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# a warning per crate per file and buys nothing. They are intentionally absent
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# rather than commented out: an unrecognised key is a warning, a commented key
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# is a trap for whoever re-enables nightly.
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#
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# If this project ever moves to nightly rustfmt, add:
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# imports_granularity = "Crate"
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# group_imports = "StdExternalCrate"
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# derive_debug = false
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# as a separate commit, so the diff is auditable.
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# Trailing comma on match arms adds vertical noise in the evaluator, which is
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# almost entirely match expressions.
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match_block_trailing_comma = false
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# Use small heuristics instead of the unstable ones.
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use_small_heuristics = "Max" |