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feat(census): run the registry reference ban from the command line - #241
cargo census check, index, job, count, fingerprint and debt --write run the reference-copy ban against registry dependencies sealed by the lock file, through the same helper as the library route (Gate::check_registry / Gate::write_debt_registry with a LockedRegistry). One builder (registry() plus evaluate() in command.rs) feeds all six commands, so they cannot disagree about the sealed set.
Options (global, repeatable where noted): --registry-cache DIR (default $CARGO_HOME/registry/cache, then $HOME/.cargo/registry/cache), --seal-registry SELECTOR (exact name or prefix-*, repeatable; the ledger reference selectors are sealed too), --registry-features PACKAGE=FEATURE,FEATURE (one per package; PACKAGE= for none). Giving any of them selects the locked route; baseline, migrate, dump-ledger and self-test refuse them.
Decisions (binding, recorded)
Feature sets are declared explicitly, one flag per package, the complete set. The CLI uses a new LockedRegistry::require_declared_features, so a sealed package without a declaration refuses by name; a declaration for a package that is not sealed refuses by name (library route too). Feature inference from the sealed manifest is not part of this change; it is the next need.
Host requirement: the command runs from a checkout of this repository or an installed cargo-census built from a pinned commit; the consumer needs no sibling tree; cargo fetch --locked must have populated the cache beforehand; the command performs no network access, runs no process and no Cargo command. Archive bytes are read from the cache and authenticated against the lock checksum.
The CLI calls the library helper; there is no second implementation.
Refused by name: absent, mismatched and oversized archive; manifest/lock disagreement; missing or unknown feature declaration; path dependency outside the workspace; Git reference (as the helper refuses it).
Also: check_registry now passes the discovered root as the host, so relative --reference-repo locations compose with the registry route as they do for debt.
Byte stability
No existing byte changes: REPORT_FORM stays 5, NORMAL_FORM untouched. The new options are additive and absent at default.
Verification
cargo test -p cargo-census (14 delivery tests, 2 new), cargo test -p raf-census --test reference_scan (30), clippy -D warnings on raf-census and cargo-census all targets.
$ cargo census check --registry-cache CACHE --registry-features acme-core=
REFERENCE-COPY src/lib.rs:1 app::copy matches acme_core::provided body:c98a2b7f...
[exit 1]
$ cargo census check --registry-cache CACHE
cargo-census: invalid census options: registry reference: acme-core 1.0.0: the sealed package has no declared feature set; declare the complete set the workspace enables (`--registry-features acme-core=FEATURE,...`, or `acme-core=` for none)
[exit 1]
$ cargo census check --registry-cache MISSING --registry-features acme-core=
cargo-census: invalid census options: registry reference: acme-core 1.0.0: cannot read the registry archive cache MISSING: No such file or directory (os error 2); run `cargo fetch --locked` for the workspace lock file
[exit 1]
check, index, job, count, fingerprint and debt accept --seal-registry,
--registry-cache and --registry-features, and evaluate the same locked
check as the library helper with registry dependencies sealed from the
lock file and Cargo's archive cache. Every sealed package needs its
complete feature set declared; a declaration for a package that is not
sealed refuses by name.
Refs #237
No actionable comments were generated in the recent review.
Summary
Summary by CodeRabbit
New Features
Added registry-sealing options for checking packages against locked registry archives and declared feature sets.
Registry-aware evaluation is available for check, index, job, count, fingerprint, and debt commands.
Registry archives can be found in an explicit cache or the configured Cargo home.
Packages can be sealed as references using exact or prefix selectors to detect copied content, separately from packages sealed only for provider proofs.
Bug Fixes
Registry checks reject missing or invalid archives, checksum mismatches, missing feature declarations for sealed packages, and declarations that are malformed, duplicated, or target unsealed packages.
The PR adds registry cache, package-sealing, and feature options to cargo-census. Supported commands use registry-aware evaluation when configured. Registry selectors affect reference-copy findings, and registry evaluation validates archives and feature declarations. Tests and capability documentation cover the CLI flow and refusal cases.
Changes: Registry Reference Scanning
Layer / File(s)
Summary
CLI registry configuration and routing crates/cargo-census/src/cli.rs, crates/cargo-census/src/command.rs, work/assessments/census-cli-*, work/assessments/census-migration-*
The CLI adds registry cache, seal, and feature options. Supported commands use registry-aware evaluation when configured. The parser selects the explicit or default cache and rejects malformed or duplicate feature declarations.
LockedRegistry distinguishes reference selectors from seal-only selectors and can require feature declarations. Registry evaluation applies reference selectors to the ledger and validates declarations. The reference-scan documentation and related assessment digests are updated.
Delivery tests and CLI documentation crates/cargo-census/tests/delivery.rs, docs/capabilities/census-cli.md
Delivery tests cover reference findings, archive and feature refusal cases, selector behavior, and subprocess serialization. The CLI capability documentation describes registry options and verification coverage.
This adds registry-locked reference scanning to cargo-census. The earlier concern that sealing a package did not ban copies of it has been fixed and tested. No remaining merge-blocking issue was found.
Security architecture risk: Low · up to d54bc
Registry scanning remains opt-in and authenticates cached archives against the workspace lock file. The reviewed paths preserve archive containment and refusal-before-write controls. No introduced security bypass was established, although consistency during concurrent workspace edits remains incompletely verified.
Retained concerns
No architecture-level concerns identified.
Security review details
Security Blast Radius
inferred — The new exposure is local CLI processing of workspace, lock-file and registry-cache data under the invoking user's filesystem authority. Archive contents become analysis input rather than executable build instructions; debt publication remains confined to the discovered workspace.
Trust Boundaries and Controls
observed — The archive adapter rechecks the lock checksum before decompression. It bounds decompression, rejects nested transport envelopes, requires the package prefix and canonical relative paths, and admits only regular files or directories into an in-memory image.
observed — Reference selection refuses unmatched families, unreachable or ambiguous exact packages, and selected packages without an admitted reference source. These checks counter silent omission when a selected reference is unavailable, although they do not establish a complete snapshot guarantee during concurrent edits.
Resilience and Maintainability Implications
observed — Debt writing retains refusal on findings and growth, exclusive publication locking, unchanged-record idempotency, no-follow temporary creation, identity-checked cleanup, and atomic link or rename publication. Post-publication finalization failures are distinguished from failures before publication. These mechanisms predate this PR; an interrupted write can leave a temporary that subsequent publication refuses to overwrite.
Hardening Proposals
proposed — Automation relying on the registry ban should pin the registry selectors and complete feature declarations alongside its check and debt-write invocations, rather than treating a debt record as proof that later commands enable the same scanning policy.
Pre-merge checks: 4
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Status
Explanation
Title check
The title names the main change: a registry reference ban is now run from the command line via the feat(census) commit. The changeset adds CLI options (--registry-cache, --seal-registry, --registry-fe…
Description check
The description is related to the changeset. It explains the new registry options, the shared builder in command.rs, the library helpers used, the feature-declaration rules, the byte-stability claim, …
Linked Issues check
Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check
Check skipped because no linked issues were found for this pull request.
Full details: Title check
Explanation
The title names the main change: a registry reference ban is now run from the command line via the feat(census) commit. The changeset adds CLI options (--registry-cache, --seal-registry, --registry-features) and a locked-registry route for check, index, job, count, fingerprint, and debt --write. The title matches this change and is specific enough for a teammate scanning history.
Full details: Description check
Explanation
The description is related to the changeset. It explains the new registry options, the shared builder in command.rs, the library helpers used, the feature-declaration rules, the byte-stability claim, verification runs, and sample command output. It matches the code changes in cli.rs, command.rs, the raf-census registry gate, and the docs.
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Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts
I’m a rabbit by the registry gate, I seal a package and check its crate. A copied body leaves a trace, Features join the locked-in place. I hop through tests, then nibble hay, And watch the references find their way.
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Actionable comments posted: 1
Fix comments: Fix CodeRabbit comments on this PR
Prompt to fix all issues
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Inline comments:
Review comments at @crates/cargo-census/src/command.rs:
- Around line 165-170: Update the `args.seal` handling in the `LockedRegistry`
setup so sealed package selectors also contribute to the reference selection
used for `check` comparisons, rather than only adding packages to the workspace.
Preserve existing `ledger.reference()` selections and ensure a sealed package
body with no matching ledger reference still produces a `REFERENCE-COPY`
finding.
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--seal-registry now feeds the same reference selection as the ledger's
reference selectors, through LockedRegistry::seal_reference, so a copied
body of a sealed package is a REFERENCE-COPY finding even when the ledger
names no reference. LockedRegistry::seal alone still seals a package for
provider proofs without making it a reference.
Refs #237
The delivery commands share per-directory publication locks with the test
process; a child forked by another test thread held a copy of a lock
descriptor until it execed, so a concurrent test saw a busy publication.
Start and await every child under one lock, and carry the command output
in the debt assertion. Document that seal alone is not a reference and
test it beside seal_reference.
Refs #237
Route all seven command spawns of the delivery binary through one
helper that holds the child lock, so no command is forked while another
test holds or has just released a publication lock descriptor.
Refs #237
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Refs #237 (stage 2; the issue stays open).
What
cargo census check,index,job,count,fingerprintanddebt --writerun the reference-copy ban against registry dependencies sealed by the lock file, through the same helper as the library route (Gate::check_registry/Gate::write_debt_registrywith aLockedRegistry). One builder (registry()plusevaluate()incommand.rs) feeds all six commands, so they cannot disagree about the sealed set.Options (global, repeatable where noted):
--registry-cache DIR(default$CARGO_HOME/registry/cache, then$HOME/.cargo/registry/cache),--seal-registry SELECTOR(exact name orprefix-*, repeatable; the ledgerreferenceselectors are sealed too),--registry-features PACKAGE=FEATURE,FEATURE(one per package;PACKAGE=for none). Giving any of them selects the locked route; baseline, migrate, dump-ledger and self-test refuse them.Decisions (binding, recorded)
LockedRegistry::require_declared_features, so a sealed package without a declaration refuses by name; a declaration for a package that is not sealed refuses by name (library route too). Feature inference from the sealed manifest is not part of this change; it is the next need.cargo-censusbuilt from a pinned commit; the consumer needs no sibling tree;cargo fetch --lockedmust have populated the cache beforehand; the command performs no network access, runs no process and no Cargo command. Archive bytes are read from the cache and authenticated against the lock checksum.Also:
check_registrynow passes the discovered root as the host, so relative--reference-repolocations compose with the registry route as they do fordebt.Byte stability
No existing byte changes: REPORT_FORM stays 5, NORMAL_FORM untouched. The new options are additive and absent at default.
Verification
cargo test -p cargo-census(14 delivery tests, 2 new),cargo test -p raf-census --test reference_scan(30), clippy-D warningson raf-census and cargo-census all targets.repo_gates,docs_contract,self_workplan,self_census; 20 stale assessments renewed. Pre-commit hook passed.make check, release profile, msrv, fuzz.Real runs