feat: Introduce cargo-gamma by geeknoid · Pull Request #93 · microsoft/ox-tools

Martin Taillefer (geeknoid) · 2026-08-23T08:21:00Z

No description provided.

github-actions · 2026-08-23T08:22:24Z

⚠️ Breaking Changes Detected

error: failed to retrieve local crate data from git revision

Caused by:
    0: failed to retrieve manifest file from git revision source
    1: possibly due to errors: [
         failed to parse /home/runner/work/ox-tools/ox-tools/target/semver-checks/git-origin_main/f3db67486d159c2faf7ea3788a63c4b0eb93822d/crates/cargo-anvil/tests/fixtures/customized/Cargo.toml: no `package` table,
         failed to parse /home/runner/work/ox-tools/ox-tools/target/semver-checks/git-origin_main/f3db67486d159c2faf7ea3788a63c4b0eb93822d/crates/cargo_ensure_no_cyclic_deps/tests/fixtures/with_cycle/Cargo.toml: no `package` table,
         failed to parse /home/runner/work/ox-tools/ox-tools/target/semver-checks/git-origin_main/f3db67486d159c2faf7ea3788a63c4b0eb93822d/crates/cargo-aprz-lib/tests/fixtures/tiny-virtual-workspace/Cargo.toml: no `package` table,
         failed to parse /home/runner/work/ox-tools/ox-tools/target/semver-checks/git-origin_main/f3db67486d159c2faf7ea3788a63c4b0eb93822d/crates/cargo-anvil/tests/fixtures/opt-outs/Cargo.toml: no `package` table,
         failed to parse /home/runner/work/ox-tools/ox-tools/target/semver-checks/git-origin_main/f3db67486d159c2faf7ea3788a63c4b0eb93822d/Cargo.toml: no `package` table,
         failed to parse /home/runner/work/ox-tools/ox-tools/target/semver-checks/git-origin_main/f3db67486d159c2faf7ea3788a63c4b0eb93822d/crates/cargo-anvil/tests/fixtures/migration/Cargo.toml: no `package` table,
         failed to parse /home/runner/work/ox-tools/ox-tools/target/semver-checks/git-origin_main/f3db67486d159c2faf7ea3788a63c4b0eb93822d/crates/cargo_ensure_no_cyclic_deps/tests/fixtures/with_self_dev_dep/Cargo.toml: no `package` table,
         failed to parse /home/runner/work/ox-tools/ox-tools/target/semver-checks/git-origin_main/f3db67486d159c2faf7ea3788a63c4b0eb93822d/crates/cargo_ensure_no_cyclic_deps/tests/fixtures/without_cycle/Cargo.toml: no `package` table,
         failed to parse /home/runner/work/ox-tools/ox-tools/target/semver-checks/git-origin_main/f3db67486d159c2faf7ea3788a63c4b0eb93822d/crates/cargo_ensure_no_cyclic_deps/tests/fixtures/with_dev_cycle/Cargo.toml: no `package` table,
       ]
    2: package `cargo-gamma-attrs-impl` not found in /home/runner/work/ox-tools/ox-tools/target/semver-checks/git-origin_main/f3db67486d159c2faf7ea3788a63c4b0eb93822d

Stack backtrace:
   0: <anyhow::Error>::msg::<alloc::string::String>
   1: <cargo_semver_checks::rustdoc_gen::RustdocFromProjectRoot>::get_crate_source
   2: <cargo_semver_checks::rustdoc_gen::StatefulRustdocGenerator<cargo_semver_checks::rustdoc_gen::CoupledState>>::prepare_generator
   3: <cargo_semver_checks::Check>::check_release::{closure#5}
   4: <cargo_semver_checks::Check>::check_release
   5: cargo_semver_checks::exit_on_error::<cargo_semver_checks::Report, cargo_semver_checks::main::{closure#5}>
   6: cargo_semver_checks::main
   7: std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
   8: main
   9: <unknown>
  10: __libc_start_main
  11: _start

If the breaking changes are intentional then everything is fine - this message is merely informative.

Remember to apply a version number bump with the correct severity when publishing a version with breaking changes (1.x.x -> 2.x.x or 0.1.x -> 0.2.x).

Copilot

Pull request overview

Introduces cargo-gamma, a Rust mutation-testing Cargo subcommand with instrumentation, runtime activation, process supervision, reporting, and workspace integration.

Changes:

Adds CLI, engine, attribute, runtime, process, and platform crates.
Adds execution, reporting, configuration, documentation, fixtures, and tests.
Integrates the new tooling into workspace metadata and automation.

Review findings:

Critical (1 vote): crates/cargo-gamma-lib/src/exec/manifest.rs:179,187 may incorrectly treat cargo-gamma-rt as satisfying the gamma_rt dependency, leaving generated guards uncompilable.
Moderate (2 votes): justfiles/basic.just:102,106 passes binary-only crates to cargo doc2readme --lib.
Nits (3 votes each): Eight crate design documents use docs/DESIGN.md instead of the required docs/design/README.md.

Reviewed changes

Copilot reviewed 80 out of 275 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Reviewed change
`README.md`	Lists cargo-gamma.
`justfiles/basic.just`	Updates README automation.
`crates/cargo-gamma/tests/manual.rs`	Manual command parsing tests.
`crates/cargo-gamma/src/real_host.rs`	Real process host.
`crates/cargo-gamma/logo.png`	Package artwork.
`crates/cargo-gamma/favicon.ico`	Package favicon.
`crates/cargo-gamma/CHANGELOG.md`	CLI changelog.
`crates/cargo-gamma/Cargo.toml`	CLI package metadata.
`crates/cargo-gamma-unsafe/src/support.rs`	Capability detection.
`crates/cargo-gamma-unsafe/src/lib.rs`	Platform API.
`crates/cargo-gamma-unsafe/README.md`	Platform documentation.
`crates/cargo-gamma-unsafe/logo.png`	Package artwork.
`crates/cargo-gamma-unsafe/favicon.ico`	Package favicon.
`crates/cargo-gamma-unsafe/docs/DESIGN.md`	Platform design documentation.
`crates/cargo-gamma-unsafe/Cargo.toml`	Platform package metadata.
`crates/cargo-gamma-rt/logo.png`	Package artwork.
`crates/cargo-gamma-rt/favicon.ico`	Package favicon.
`crates/cargo-gamma-rt/docs/DESIGN.md`	Runtime design documentation.
`crates/cargo-gamma-rt/Cargo.toml`	Runtime package metadata.
`crates/cargo-gamma-process/src/memory_usage.rs`	Memory usage.
`crates/cargo-gamma-process/src/memory_request.rs`	Memory requests.
`crates/cargo-gamma-process/src/lib.rs`	Process API.
`crates/cargo-gamma-process/src/faults.rs`	Process faults.
`crates/cargo-gamma-process/README.md`	Process documentation.
`crates/cargo-gamma-process/logo.png`	Package artwork.
`crates/cargo-gamma-process/favicon.ico`	Package favicon.
`crates/cargo-gamma-process/docs/DESIGN.md`	Process design documentation.
`crates/cargo-gamma-process/Cargo.toml`	Process package metadata.
`crates/cargo-gamma-lib/tests/gate.rs`	Coverage gate tests.
`crates/cargo-gamma-lib/tests/fixtures/report.golden.json`	Golden report fixture.
`crates/cargo-gamma-lib/tests/agreement.rs`	Agreement tests.
`crates/cargo-gamma-lib/src/vendor/VERSION`	Vendored schema version.
`crates/cargo-gamma-lib/src/suppress/mod.rs`	Suppression module.
`crates/cargo-gamma-lib/src/suppress/intent.rs`	Suppression intent.
`crates/cargo-gamma-lib/src/suppress/idle.rs`	Idle suppressions.
`crates/cargo-gamma-lib/src/suppress/apply.rs`	Suppression application.
`crates/cargo-gamma-lib/src/schema.rs`	Schema integration.
`crates/cargo-gamma-lib/src/report/text.rs`	Text reports.
`crates/cargo-gamma-lib/src/report/mod.rs`	Reporting module.
`crates/cargo-gamma-lib/src/parse.rs`	Input parsing.
`crates/cargo-gamma-lib/src/ops/registry.rs`	Registry operations.
`crates/cargo-gamma-lib/src/ops/collect.rs`	Collection operations.
`crates/cargo-gamma-lib/src/ops.rs`	Library operations.
`crates/cargo-gamma-lib/src/model/suppression.rs`	Suppression model.
`crates/cargo-gamma-lib/src/model/summary.rs`	Mutation summaries.
`crates/cargo-gamma-lib/src/model/scoring.rs`	Mutation scoring.
`crates/cargo-gamma-lib/src/model/mod.rs`	Model module.
`crates/cargo-gamma-lib/src/model/interner.rs`	Model interning.
`crates/cargo-gamma-lib/src/model/identity.rs`	Model identities.
`crates/cargo-gamma-lib/src/migrate/translation.rs`	Configuration translation.
`crates/cargo-gamma-lib/src/migrate/paths.rs`	Migration paths.
`crates/cargo-gamma-lib/src/migrate/mod.rs`	Migration module.
`crates/cargo-gamma-lib/src/migrate/lock_flags.rs`	Lock flag migration.
`crates/cargo-gamma-lib/src/merge/verdict.rs`	Merged verdicts.
`crates/cargo-gamma-lib/src/merge/status.rs`	Merge status.
`crates/cargo-gamma-lib/src/merge/mod.rs`	Merge module.
`crates/cargo-gamma-lib/src/merge/incoming.rs`	Merge inputs.
`crates/cargo-gamma-lib/src/fix/verify.rs`	Fix verification entry.
`crates/cargo-gamma-lib/src/fix/verification.rs`	Fix verification.
`crates/cargo-gamma-lib/src/fix/removal.rs`	Fix removal.
`crates/cargo-gamma-lib/src/fix/mod.rs`	Fix module.
`crates/cargo-gamma-lib/src/fix/edit.rs`	Fix edits.
`crates/cargo-gamma-lib/src/exec/mod.rs`	Execution module.
`crates/cargo-gamma-lib/src/exec/incremental_mode.rs`	Incremental execution.
`crates/cargo-gamma-lib/src/elements/mod.rs`	Elements module.
`crates/cargo-gamma-lib/src/elements/digest.rs`	Report digests.
`crates/cargo-gamma-lib/src/discover/target_file.rs`	Target files.
`crates/cargo-gamma-lib/src/discover/shard.rs`	Discovery sharding.
`crates/cargo-gamma-lib/src/discover/mod.rs`	Discovery module.
`crates/cargo-gamma-lib/src/diag/mod.rs`	Diagnostics module.
`crates/cargo-gamma-lib/src/commands/when.rs`	Conditional command.
`crates/cargo-gamma-lib/src/commands/verdict_log.rs`	Verdict logging.
`crates/cargo-gamma-lib/src/commands/mod.rs`	Command module.
`crates/cargo-gamma-lib/src/commands/host.rs`	Host command.
`crates/cargo-gamma-lib/src/commands/hints.rs`	Hints command.
`crates/cargo-gamma-lib/src/commands/explain.rs`	Explanation command.
`crates/cargo-gamma-lib/src/commands/completions.rs`	Shell completions.
`crates/cargo-gamma-lib/src/ci/truncation.rs`	Output truncation.
`crates/cargo-gamma-lib/src/ci/mod.rs`	CI integration.
`crates/cargo-gamma-lib/src/ci/level.rs`	CI severity levels.
`crates/cargo-gamma-lib/src/ci/finding.rs`	CI findings.
`crates/cargo-gamma-lib/src/cfg/mod.rs`	CFG module.
`crates/cargo-gamma-lib/src/cfg/cfgs.rs`	CFG values.
`crates/cargo-gamma-lib/src/advise/yield_.rs`	Yield advice.
`crates/cargo-gamma-lib/src/advise/timing.rs`	Timing advice.
`crates/cargo-gamma-lib/src/advise/text.rs`	Advice text.
`crates/cargo-gamma-lib/src/advise/mod.rs`	Advice module.
`crates/cargo-gamma-lib/src/advise/finding.rs`	Advice findings.
`crates/cargo-gamma-lib/README.md`	Library documentation.
`crates/cargo-gamma-lib/logo.png`	Package artwork.
`crates/cargo-gamma-lib/favicon.ico`	Package favicon.
`crates/cargo-gamma-lib/docs/DESIGN.md`	Library design documentation.
`crates/cargo-gamma-lib/Cargo.toml`	Library package metadata.
`crates/cargo-gamma-engine/src/parse/mod.rs`	Parsing module.
`crates/cargo-gamma-engine/src/ops/registry/preset.rs`	Mutator presets.
`crates/cargo-gamma-engine/src/ops/registry/mutator.rs`	Mutator definitions.
`crates/cargo-gamma-engine/src/ops/registry/mod.rs`	Registry module.
`crates/cargo-gamma-engine/src/ops/registry/lookup.rs`	Mutator lookup.
`crates/cargo-gamma-engine/src/ops/mod.rs`	Engine operations.
`crates/cargo-gamma-engine/src/ops/collect/traversal.rs`	AST traversal.
`crates/cargo-gamma-engine/src/ops/collect/shape.rs`	Instrumentation shapes.
`crates/cargo-gamma-engine/src/ops/collect/mod.rs`	Collection module.
`crates/cargo-gamma-engine/src/ops/collect/definitions.rs`	Candidate definitions.
`crates/cargo-gamma-engine/src/ops/collect/collector/tables.rs`	Table collection.
`crates/cargo-gamma-engine/src/ops/collect/candidate.rs`	Candidate collection.
`crates/cargo-gamma-engine/src/model/mutation_site.rs`	Mutation locations.
`crates/cargo-gamma-engine/src/model/mutant_definition.rs`	Mutant definitions.
`crates/cargo-gamma-engine/src/model/mod.rs`	Model module.
`crates/cargo-gamma-engine/src/model/interner.rs`	Model interning.
`crates/cargo-gamma-engine/src/lib.rs`	Engine API.
`crates/cargo-gamma-engine/src/error.rs`	Engine errors.
`crates/cargo-gamma-engine/README.md`	Engine documentation.
`crates/cargo-gamma-engine/logo.png`	Package artwork.
`crates/cargo-gamma-engine/favicon.ico`	Package favicon.
`crates/cargo-gamma-engine/docs/DESIGN.md`	Engine design documentation.
`crates/cargo-gamma-engine/Cargo.toml`	Engine package metadata.
`crates/cargo-gamma-attrs/logo.png`	Package artwork.
`crates/cargo-gamma-attrs/favicon.ico`	Package favicon.
`crates/cargo-gamma-attrs/docs/DESIGN.md`	Attribute design documentation.
`crates/cargo-gamma-attrs/Cargo.toml`	Attribute package metadata.
`crates/cargo-gamma-attrs-impl/src/lib.rs`	Attribute parsing API.
`crates/cargo-gamma-attrs-impl/README.md`	Implementation documentation.
`crates/cargo-gamma-attrs-impl/logo.png`	Package artwork.
`crates/cargo-gamma-attrs-impl/favicon.ico`	Package favicon.
`crates/cargo-gamma-attrs-impl/docs/DESIGN.md`	Attribute implementation design.
`crates/cargo-gamma-attrs-impl/Cargo.toml`	Implementation package metadata.
`crates/cargo-each/src/main.rs`	Binary entry point.
`crates/cargo-each/README.md`	Tool documentation.
`crates/cargo-each/Cargo.toml`	Package metadata.
`crates/cargo-aprz-lib/Cargo.toml`	Package metadata.
`CHANGELOG.md`	Project changelog.
`Cargo.toml`	Workspace metadata.
`.cargo/mutants.toml`	Mutation exclusions.
`.cargo/gamma.toml`	Gamma configuration.

Suppressed comments (2)

crates/cargo-gamma-engine/src/ops/collect/collector.rs:512

Excluding integer literals here means an explicit expr.increment or expr.decrement selection produces no mutation for a numeric function tail: visit_expr_lit emits only literal.* variants. The emission deduplication is per mutator, so the literal guard does not make these expression mutators duplicates; let perturb_proven run for literals as well.
crates/cargo-gamma-engine/src/ops/collect/collector.rs:1742
This repeats the literal exclusion for return 1: the literal visitor does not emit expr.*, so selecting only expr.increment or expr.decrement silently omits numeric return sites. The call should also run for literals; the emission path already distinguishes mutator names when de-duplicating.

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Copilot

Pull request overview

Copilot reviewed 76 out of 275 changed files in this pull request and generated 2 comments.

Suppressed comments (6)

crates/cargo-gamma-attrs-impl/docs/DESIGN.md:1

The repository's required top-level design-document layout is docs/design/README.md (see AGENTS.md:41-46), but this document is added as docs/DESIGN.md. The design artifact is therefore not at the path used by the repository's documentation and regression checks; please move it to the required path.
crates/cargo-gamma-attrs/docs/DESIGN.md:1
The repository's required top-level design-document layout is docs/design/README.md (see AGENTS.md:41-46), but this document is added as docs/DESIGN.md. The design artifact is therefore not at the required path; please move it to docs/design/README.md.
crates/cargo-gamma-engine/docs/DESIGN.md:1
The repository's required top-level design-document layout is docs/design/README.md (see AGENTS.md:41-46), but this document is added as docs/DESIGN.md. The design artifact is therefore not at the required path; please move it to docs/design/README.md.
crates/cargo-gamma-engine/src/ops/collect/collector.rs:1770
These replacements cover the entire literal span, but base10_digits() omits the integer suffix and every emitted string drops it. A valid site such as use_t(1u8) where a trait is implemented only for u8 then becomes an unviable or differently typed mutant (use_t(1)); append value.suffix() to each generated integer replacement, including the zero/one forms, so mutation changes the value without changing its type.
crates/cargo-gamma-engine/src/ops/collect/collector.rs:1764
Parsing base10_digits() as i64 silently skips the increment/decrement family for valid u64/u128 literals above i64::MAX (for example, u64::MAX has no neighboring-value mutants). Parse according to the literal's signedness/width with checked arithmetic so large unsigned literals still get their valid decrement candidate and do not disappear from the catalog.
crates/cargo-gamma-lib/docs/DESIGN.md:1
The repository's required top-level design-document layout is docs/design/README.md (see AGENTS.md:41-46), but this document is added as docs/DESIGN.md. The design artifact is therefore not at the required path; please move it to docs/design/README.md.

Copilot

Pull request overview

Copilot reviewed 77 out of 276 changed files in this pull request and generated no new comments.

Suppressed comments (4)

crates/cargo-gamma-attrs-impl/docs/DESIGN.md:1

The repository requires each crate's design landing page at docs/design/README.md (AGENTS.md:41-46, 91-93), but this document is added as docs/DESIGN.md. Move it to the required path so the crate follows the repository contract and remains discoverable by tooling and documentation.
crates/cargo-gamma-attrs/docs/DESIGN.md:1
The repository requires each crate's design landing page at docs/design/README.md (AGENTS.md:41-46, 91-93), but this document is added as docs/DESIGN.md. Move it to the required path so the crate follows the repository contract and remains discoverable by tooling and documentation.
crates/cargo-gamma-engine/docs/DESIGN.md:1
The repository requires each crate's design landing page at docs/design/README.md (AGENTS.md:41-46, 91-93), but this document is added as docs/DESIGN.md. Move it to the required path so the crate follows the repository contract and remains discoverable by tooling and documentation.
crates/cargo-gamma-lib/docs/DESIGN.md:1
The repository requires each crate's design landing page at docs/design/README.md (AGENTS.md:41-46, 91-93), but this document is added as docs/DESIGN.md. Move it to the required path so the crate follows the repository contract and remains discoverable by tooling and documentation.

Copilot

Pull request overview

Copilot reviewed 77 out of 276 changed files in this pull request and generated no new comments.

Suppressed comments (5)

CHANGELOG.md:11

This new crate link is a manual edit to the repository changelog, but AGENTS.md:23-25 requires changelogs to be generated/updated by the release process. Please remove this entry from the feature PR and let the release tooling add it.
crates/cargo-gamma-attrs-impl/docs/DESIGN.md:1
This new crate's design document is at docs/DESIGN.md, but the repository's required layout for new crates is docs/design/README.md (see AGENTS.md:39-47). Please move this document to that landing-page path so the design contract is discoverable and consistent with the other crates.
crates/cargo-gamma-attrs/docs/DESIGN.md:1
This new crate's design document is at docs/DESIGN.md, but the repository's required layout for new crates is docs/design/README.md (see AGENTS.md:39-47). Please move this document to that landing-page path so the design contract is discoverable and consistent with the other crates.
crates/cargo-gamma-engine/docs/DESIGN.md:1
This new crate's design document is at docs/DESIGN.md, but the repository's required layout for new crates is docs/design/README.md (see AGENTS.md:39-47). Please move this document to that landing-page path so the design contract is discoverable and consistent with the other crates.
crates/cargo-gamma-lib/docs/DESIGN.md:1
This new crate's design document is at docs/DESIGN.md, but the repository's required layout for new crates is docs/design/README.md (see AGENTS.md:39-47). Please move this document to that landing-page path so the design contract is discoverable and consistent with the other crates.

Copilot

Pull request overview

Copilot reviewed 76 out of 275 changed files in this pull request and generated 1 comment.

Suppressed comments (4)

crates/cargo-gamma-attrs-impl/docs/DESIGN.md:1

This new crate design document is stored at docs/DESIGN.md, but every new crate must provide its top-level design landing page at docs/design/README.md. Please relocate this document to that path so the repository's design-doc discovery and publication conventions work.
crates/cargo-gamma-attrs/docs/DESIGN.md:1
This new crate design document is stored at docs/DESIGN.md, but every new crate must provide its top-level design landing page at docs/design/README.md. Please relocate this document to that path so the repository's design-doc discovery and publication conventions work.
crates/cargo-gamma-engine/docs/DESIGN.md:1
This new crate design document is stored at docs/DESIGN.md, but every new crate must provide its top-level design landing page at docs/design/README.md. Please relocate this document to that path so the repository's design-doc discovery and publication conventions work.
crates/cargo-gamma-lib/docs/DESIGN.md:1
This new crate design document is stored at docs/DESIGN.md, but every new crate must provide its top-level design landing page at docs/design/README.md. Please relocate this document to that path so the repository's design-doc discovery and publication conventions work.

Copilot

Pull request overview

Copilot reviewed 76 out of 275 changed files in this pull request and generated 1 comment.

Suppressed comments (4)

crates/cargo-gamma-attrs-impl/docs/DESIGN.md:1

The design document is at docs/DESIGN.md, but the repository contract for new crates requires crates/<crate>/docs/design/README.md. Please move this file to the required path so design-doc tooling and reviewers can discover it consistently.
crates/cargo-gamma-attrs/docs/DESIGN.md:1
The design document is at docs/DESIGN.md, but the repository contract for new crates requires crates/<crate>/docs/design/README.md. Please move this file to the required path so design-doc tooling and reviewers can discover it consistently.
crates/cargo-gamma-engine/docs/DESIGN.md:1
The design document is at docs/DESIGN.md, but the repository contract for new crates requires crates/<crate>/docs/design/README.md. Please move this file to the required path so design-doc tooling and reviewers can discover it consistently.
crates/cargo-gamma-lib/docs/DESIGN.md:1
The design document is at docs/DESIGN.md, but the repository contract for new crates requires crates/<crate>/docs/design/README.md. Please move this file to the required path so design-doc tooling and reviewers can discover it consistently.

Copilot

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Copilot

Pull request overview

Copilot reviewed 79 out of 287 changed files in this pull request and generated no new comments.

Suppressed comments (4)

crates/cargo-gamma-lib/docs/DESIGN.md:5

AGENTS.md specifies design docs should be under crates/<crate>/docs/design/README.md. This file is added as docs/DESIGN.md, which diverges from the repository’s documented layout for new crates/changes.
crates/cargo-gamma-engine/docs/DESIGN.md:5
AGENTS.md documents crates/<crate>/docs/design/README.md as the expected design-doc location. Adding a docs/DESIGN.md file here diverges from that convention.
crates/cargo-gamma-attrs/docs/DESIGN.md:5
AGENTS.md specifies design docs under crates/<crate>/docs/design/README.md. This crate adds docs/DESIGN.md, which doesn’t follow that documented layout.
crates/cargo-gamma-attrs-impl/docs/DESIGN.md:5
AGENTS.md documents crates/<crate>/docs/design/README.md as the standard design doc location. This crate adds docs/DESIGN.md instead, which diverges from that convention.

Copilot

Pull request overview

Copilot reviewed 78 out of 286 changed files in this pull request and generated no new comments.

Suppressed comments (4)

crates/cargo-gamma-lib/docs/DESIGN.md:4

Repo convention is that design docs live at crates/<crate>/docs/design/README.md (AGENTS.md:39-47, 91-93). This crate adds docs/DESIGN.md instead, which won't match the expected layout or render as the docs/design/ landing page. Please move/rename this into docs/design/README.md (and adjust any links accordingly).
crates/cargo-gamma-engine/docs/DESIGN.md:4
Repo convention is that design docs live at crates/<crate>/docs/design/README.md (AGENTS.md:39-47, 91-93). This crate adds docs/DESIGN.md instead, which won't match the expected layout or render as the docs/design/ landing page. Please move/rename this into docs/design/README.md (and adjust any links accordingly).
crates/cargo-gamma-attrs/docs/DESIGN.md:4
Repo convention is that design docs live at crates/<crate>/docs/design/README.md (AGENTS.md:39-47, 91-93). This crate adds docs/DESIGN.md instead, which won't match the expected layout or render as the docs/design/ landing page. Please move/rename this into docs/design/README.md (and adjust any links accordingly).
crates/cargo-gamma-attrs-impl/docs/DESIGN.md:4
Repo convention is that design docs live at crates/<crate>/docs/design/README.md (AGENTS.md:39-47, 91-93). This crate adds docs/DESIGN.md instead, which won't match the expected layout or render as the docs/design/ landing page. Please move/rename this into docs/design/README.md (and adjust any links accordingly).

Copilot

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Copilot reviewed 78 out of 286 changed files in this pull request and generated no new comments.

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crates/cargo-gamma-lib/docs/DESIGN.md:4

New crates are expected to land their top-level design doc at docs/design/README.md (see AGENTS.md), so it renders as the docs/design/ landing page and stays consistent with the repo’s design-doc layout. This crate currently adds docs/DESIGN.md instead, which diverges from that convention.

Copilot

Pull request overview

Copilot reviewed 78 out of 286 changed files in this pull request and generated no new comments.

Copilot

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Copilot reviewed 78 out of 286 changed files in this pull request and generated 1 comment.

Suppressed comments (4)

crates/cargo-gamma-lib/docs/DESIGN.md:4

Repo convention is crates/<crate>/docs/design/README.md for the crate design doc landing page (see AGENTS.md layout section). This file should be moved/renamed accordingly so it renders as the design doc root.
crates/cargo-gamma-engine/docs/DESIGN.md:4
Repo convention is crates/<crate>/docs/design/README.md for the crate design doc landing page (see AGENTS.md layout section). This file should be moved/renamed accordingly so it renders as the design doc root.
crates/cargo-gamma-attrs/docs/DESIGN.md:4
Repo convention is crates/<crate>/docs/design/README.md for the crate design doc landing page (see AGENTS.md layout section). This file should be moved/renamed accordingly so it renders as the design doc root.
crates/cargo-gamma-attrs-impl/docs/DESIGN.md:4
Repo convention is crates/<crate>/docs/design/README.md for the crate design doc landing page (see AGENTS.md layout section). This file should be moved/renamed accordingly so it renders as the design doc root.

Copilot

Pull request overview

Copilot reviewed 78 out of 283 changed files in this pull request and generated no new comments.

Suppressed comments (4)

crates/cargo-gamma-lib/docs/DESIGN.md:4

Repository guidelines require crate design docs to live at docs/design/README.md (so GitHub renders it as the design landing page). This crate uses docs/DESIGN.md, which deviates from the expected layout and will be harder to discover consistently.
crates/cargo-gamma-engine/docs/DESIGN.md:4
Repository guidelines require crate design docs to live at docs/design/README.md. This crate uses docs/DESIGN.md, which deviates from the expected layout and will be harder to discover consistently.
crates/cargo-gamma-attrs/docs/DESIGN.md:4
Repository guidelines require crate design docs to live at docs/design/README.md. This crate uses docs/DESIGN.md, which deviates from the expected layout and will be harder to discover consistently.
crates/cargo-gamma-attrs-impl/docs/DESIGN.md:4
Repository guidelines require crate design docs to live at docs/design/README.md. This crate uses docs/DESIGN.md, which deviates from the expected layout and will be harder to discover consistently.

Copilot

Pull request overview

Copilot reviewed 77 out of 282 changed files in this pull request and generated no new comments.

Suppressed comments (1)

crates/cargo-each/Cargo.toml:19

cargo-each is still a bin-only crate (no library target), but this PR removed the [package.metadata.ox-gen-readme] disable = true opt-out that documents and enforces the exception to the repo’s auto-generated README convention. Restoring it keeps tooling aligned (and prevents future README regeneration attempts if a lib target is added later).

Copilot

Pull request overview

Copilot reviewed 77 out of 282 changed files in this pull request and generated no new comments.

Copilot

Pull request overview

Copilot reviewed 77 out of 282 changed files in this pull request and generated no new comments.

Suppressed comments (1)

crates/cargo-each/Cargo.toml:18

cargo-each is a bin-only crate (no src/lib.rs), so it cannot participate in the repo’s cargo doc2readme --lib README generation/check flow. Restore the opt-out metadata (or add a real lib target specifically for rustdoc/README generation).

Copilot

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Copilot reviewed 77 out of 282 changed files in this pull request and generated no new comments.

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crates/cargo-each/Cargo.toml:19

This crate has no library target (only src/main.rs), so it should remain opted out of doc2readme-based README generation/checks. Removing [package.metadata.ox-gen-readme] disable = true will make README automation treat this like a lib crate and will conflict with just readme/readme-check (which run cargo doc2readme --lib). Restore the opt-out (or add a real lib target if you intend generation).

Copilot

Pull request overview

Copilot reviewed 77 out of 282 changed files in this pull request and generated no new comments.

Copilot

Pull request overview

Copilot reviewed 77 out of 282 changed files in this pull request and generated no new comments.

Suppressed comments (4)

crates/cargo-gamma-lib/docs/DESIGN.md:5

Design docs are expected at crates/<crate>/docs/design/README.md (per AGENTS.md). This new design doc is at docs/DESIGN.md, which diverges from the repository layout and makes it harder to find/render consistently. Consider moving/renaming it to docs/design/README.md.
crates/cargo-gamma-engine/docs/DESIGN.md:5
Design docs are expected at crates/<crate>/docs/design/README.md (per AGENTS.md). This new design doc is at docs/DESIGN.md, which diverges from the repository layout and makes it harder to find/render consistently. Consider moving/renaming it to docs/design/README.md.
crates/cargo-gamma-attrs/docs/DESIGN.md:5
Design docs are expected at crates/<crate>/docs/design/README.md (per AGENTS.md). This new design doc is at docs/DESIGN.md, which diverges from the repository layout and makes it harder to find/render consistently. Consider moving/renaming it to docs/design/README.md.
crates/cargo-gamma-attrs-impl/docs/DESIGN.md:5
Design docs are expected at crates/<crate>/docs/design/README.md (per AGENTS.md). This new design doc is at docs/DESIGN.md, which diverges from the repository layout and makes it harder to find/render consistently. Consider moving/renaming it to docs/design/README.md.

Copilot

Pull request overview

Copilot reviewed 77 out of 282 changed files in this pull request and generated no new comments.

Suppressed comments (1)

crates/cargo-gamma-lib/docs/DESIGN.md:5

AGENTS.md specifies that new crates must include a design doc at docs/design/README.md. This crate instead adds docs/DESIGN.md, which doesn’t follow the documented layout and makes it harder for contributors/tools to find the canonical design entry point consistently across crates.

Copilot

Pull request overview

Copilot reviewed 77 out of 282 changed files in this pull request and generated 1 comment.

Suppressed comments (4)

crates/cargo-gamma-engine/docs/DESIGN.md:5

Repo guidelines require new crates to place design docs at docs/design/README.md (see AGENTS.md layout). This file is at docs/DESIGN.md, so it won’t follow the standard layout/rendering expectations.
crates/cargo-gamma-lib/docs/DESIGN.md:5
Repo guidelines require new crates to place design docs at docs/design/README.md (see AGENTS.md layout). This file is at docs/DESIGN.md instead.
crates/cargo-gamma-attrs/docs/DESIGN.md:5
Repo guidelines require new crates to place design docs at docs/design/README.md (see AGENTS.md layout). This file is at docs/DESIGN.md, not the standard location.
crates/cargo-gamma-attrs-impl/docs/DESIGN.md:5
Repo guidelines require new crates to place design docs at docs/design/README.md (see AGENTS.md layout). This file is at docs/DESIGN.md, which doesn’t match that structure.

Copilot

Pull request overview

Copilot reviewed 77 out of 282 changed files in this pull request and generated no new comments.

Suppressed comments (1)

crates/cargo-gamma-lib/docs/DESIGN.md:5

Design docs in this repo are expected at crates/<crate>/docs/design/README.md (so they render as the docs/design/ landing page). This crate’s design doc is currently at docs/DESIGN.md; please move/rename it (and apply the same layout to the other new cargo-gamma* crates’ design docs for consistency).

Copilot

Pull request overview

Copilot reviewed 77 out of 282 changed files in this pull request and generated no new comments.

Suppressed comments (1)

crates/cargo-gamma-lib/docs/DESIGN.md:5

New crates should land their design doc at crates/<crate>/docs/design/README.md (so it renders as the docs/design/ landing page). This crate adds docs/DESIGN.md instead, which diverges from the repository’s documented layout and will make design docs harder to find consistently across crates.

Copilot

Pull request overview

Copilot reviewed 77 out of 282 changed files in this pull request and generated no new comments.

Suppressed comments (1)

crates/cargo-gamma-lib/docs/DESIGN.md:5

Repository guidelines expect new crate design docs at crates/<crate>/docs/design/README.md (see AGENTS.md). This new design doc is added as docs/DESIGN.md, which makes design-doc discovery inconsistent across crates.

Copilot

Pull request overview

Copilot reviewed 77 out of 282 changed files in this pull request and generated no new comments.

Suppressed comments (1)

crates/cargo-gamma-lib/docs/DESIGN.md:5

Repository convention is to place crate design docs under crates/<crate>/docs/design/README.md (so the folder renders as a landing page) rather than crates/<crate>/docs/DESIGN.md (see AGENTS.md layout guidance). This file (and the other new docs/DESIGN.md files in the cargo-gamma crates) should be moved/renamed accordingly.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: cd88f2d9-7bc6-448e-bcb7-469f4aaa0600

Copilot

Pull request overview

Copilot reviewed 77 out of 282 changed files in this pull request and generated no new comments.

Suppressed comments (4)

crates/cargo-gamma-lib/docs/DESIGN.md:5

Design docs in this repo are expected under crates/<crate>/docs/design/README.md (AGENTS.md:41-47, 91-92). This crate uses docs/DESIGN.md instead. Please move/rename to docs/design/README.md so tooling and navigation stay consistent.
crates/cargo-gamma-engine/docs/DESIGN.md:5
Design docs in this repo are expected under crates/<crate>/docs/design/README.md (AGENTS.md:41-47, 91-92). This crate uses docs/DESIGN.md instead. Please move/rename to docs/design/README.md to match the repo’s design-doc layout.
crates/cargo-gamma-attrs/docs/DESIGN.md:5
Design docs in this repo are expected under crates/<crate>/docs/design/README.md (AGENTS.md:41-47, 91-92). This crate uses docs/DESIGN.md instead. Please move/rename to docs/design/README.md to match the standard layout.
crates/cargo-gamma-attrs-impl/docs/DESIGN.md:5
Design docs in this repo are expected under crates/<crate>/docs/design/README.md (AGENTS.md:41-47, 91-92). This crate uses docs/DESIGN.md instead. Please move/rename to docs/design/README.md to match the established convention.

Copilot AI lite review requested due to automatic review settings August 23, 2026 08:21

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Martin Taillefer (geeknoid) changed the title ~~Introduce cargo-gamma~~ feat: Introduce cargo-gamma Aug 23, 2026

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Martin Taillefer (geeknoid) force-pushed the gamma branch from 2092854 to 7a64c1d Compare August 24, 2026 00:44

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Comment thread crates/cargo-gamma-rt/src/lib.rs

Comment thread crates/cargo-gamma-unsafe/src/cgroup.rs Outdated

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Martin Taillefer (geeknoid) force-pushed the gamma branch from 2e5513e to ba52dd1 Compare August 24, 2026 10:19

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Comment thread crates/cargo-gamma-process/src/process_tree.rs Outdated

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Comment thread crates/cargo-gamma-rt/Cargo.toml

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Comment thread crates/cargo-each/Cargo.toml

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Introduce cargo-gamma

b4f0fc2

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: cd88f2d9-7bc6-448e-bcb7-469f4aaa0600

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Pato Sandaña (psandana) mentioned this pull request Aug 29, 2026

fix(cargo-gamma-unsafe): avoid clippy::fn_to_numeric_cast_any on the MSRV toolchain #112

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Martin Taillefer (geeknoid) commented Aug 23, 2026

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github-actions Bot commented Aug 23, 2026 •

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