feat(lib): ship usage-rs as the one-crate rust default - #1041
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Publish the facade in the release path so adopters depend on one package, and enable diagnostics by default so clap-shaped errors work out of the box. Co-authored-by: jdx <jdx@users.noreply.github.com>
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ChangesFacade diagnostics defaults
Release and CI workflow updates
Estimated code review effort: 2 (Simple) | ~15 minutes Merge Risk: 🔵 Low · up to The workflow changes may report a different shell executable than the integration tests actually run when executable overrides are used. This is a bounded diagnostics issue that is mergeable with owner awareness and can be followed up by aligning executable resolution. Sequence Diagram(s)sequenceDiagram
participant Application
participant usage-rs
participant usage-argv
participant diagnostics
Application->>usage-rs: use default features
usage-rs->>usage-argv: parse arguments
usage-argv->>diagnostics: create diagnostic for unknown flag
diagnostics-->>Application: render clap-shaped error
Possibly related PRs
Suggested reviewers: Poem
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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render_failure colours via Style::auto when stderr is a TTY or CLICOLOR_FORCE is set, which embeds ANSI codes in the quoted token and flakes a literal substring check. Co-authored-by: jdx <jdx@users.noreply.github.com>
Same fix as #1036: per-connection apt timeouts so a hanging azure mirror does not burn the step budget before archive.ubuntu.com is tried. Co-authored-by: jdx <jdx@users.noreply.github.com>
Instruction counts
No instruction-count regression above 1%. Only instruction counts gate. Wall clock is shown for context — on identical hardware it moves 4-20% run to run. Measured by tak — instruction-counted CLI benchmarks, stored in this repository's git notes. Shadow comparisonParsing
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Co-authored-by: jdx <jdx@users.noreply.github.com>
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Inline comments:
In @.github/workflows/test.yml:
- Around line 57-69: Update the shell diagnostics in .github/workflows/test.yml
lines 57-69 and .github/workflows/coverage.yml lines 43-52 to replace the
PATH-only command -v check with the same shell-specific smoke test used by
shell_can_run_a_script; retain the available/missing reporting while validating
that each shell can actually execute a script.
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📒 Files selected for processing (3)
.github/workflows/coverage.yml.github/workflows/test.ymlusage-rs/tests/facade.rs
🚧 Files skipped from review as they are similar to previous changes (1)
- usage-rs/tests/facade.rs
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<!-- CURSOR_AGENT_PR_BODY_BEGIN --> ## Summary Stacked on #1041. Drops `proc-macro-crate` (and its `toml_edit` / `indexmap` / `winnow` tree) from `usage-derive` so adopters compile a much smaller transitive set. ## Approach Keep rename / mixed-dependency resolution by reading the adopter’s `Cargo.toml` directly for the forms usage documents: - bare keys (`usage-argv = …`) - inline renames (`usage = { package = "usage-rs", … }`) - multi-line `{ … }` tables - `[dependencies.foo]` headers Same priority as before: direct `usage-argv` wins, otherwise the `usage-rs` facade. ## Tree Before (under `usage-rs`): ~17 crates including `toml_edit`, `winnow`, `indexmap`, … After: - `usage-rs` → `usage-argv` + `usage-derive` - `usage-derive` → `syn` / `quote` / `proc-macro2` / `unicode-ident` ## Checks - `cargo test -p usage-derive` (including new `crate_name` unit tests) - `cargo test -p usage-rs` (facade + cargo-alias + mixed-dependencies fixtures) - `cargo test -p usage-conformance --test derive --test unit_variants` - `cargo clippy -p usage-derive --all-targets -- -D warnings` - `cargo check -p usage-cli` ## Stack - #1041 — one-crate facade defaults + release publish - **This PR** — transitive dep cut <!-- CURSOR_AGENT_PR_BODY_END --> <div><a href="https://cursor.com/agents/bc-bfc42df3-e089-48ba-8ca9-86373fb54d80?cursor_ref=pr_footer&cursor_cta=open_in_web"><picture><source media="(prefers-color-scheme: dark)" srcset="https://cursor.com/assets/images/open-in-web-dark.png"><source media="(prefers-color-scheme: light)" srcset="https://cursor.com/assets/images/open-in-web-light.png"><img alt="Open in Web" width="114" height="28" src="https://cursor.com/assets/images/open-in-web-dark.png"></picture></a> <a href="https://cursor.com/background-agent?bcId=bc-bfc42df3-e089-48ba-8ca9-86373fb54d80&cursor_ref=pr_footer&cursor_cta=open_in_cursor"><picture><source media="(prefers-color-scheme: dark)" srcset="https://cursor.com/assets/images/open-in-cursor-dark.png"><source media="(prefers-color-scheme: light)" srcset="https://cursor.com/assets/images/open-in-cursor-light.png"><img alt="Open in Cursor" width="131" height="28" src="https://cursor.com/assets/images/open-in-cursor-dark.png"></picture></a> </div> --------- Co-authored-by: Cursor Agent <cursoragent@cursor.com> Co-authored-by: jdx <jdx@users.noreply.github.com>
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2 participants
Summary
Rust framework adopters should depend on one Cargo package out of the box:
usage-rs(aliased tousage). The facade already existed for that, but it was stuck at the0.0.0crates.io placeholder becausetasks/release-plznever published it, and defaults omitteddiagnosticsso friendly errors were a footgun.Changes
usage-rsin the release path (afterusage-argv/usage-derive), and include it in cliff / version bump pathsdiagnosticsby default on the facade so clap-shaped parse errors work without an extra featureusage-argv/usage-deriveas the thin low-level splitfeatures = ["diagnostics"]fromusage-cli(defaults cover it)Style, so TTY/CLICOLOR_FORCEcannot flake the assertion)test/coverageWhy
Applications were documented to depend on
usage-rs, but without a release they effectively needed bothusage-argvandusage-derive. Shipping the facade closes that gap; turning on diagnostics by default removes the “Debug-formatted errors until you remember the feature” footgun. Low-level adopters that want only the binding runtime still useusage-argvdirectly (no defaults).Stack
proc-macro-cratetransitive deps (stacked on this; base = this branch)Checks
cargo test -p usage-rscargo check -p usage-cliusage --wat→ clap-shaped error, exit 2Summary by CodeRabbit
New Features
Documentation