roas-cli
Command-line front-end for roas: validate and convert OpenAPI specs across versions 2.0 / 3.0.x / 3.1.x / 3.2.x.
Install
cargo install roas-cli
The installed binary is named roas.
Usage
roas validate <FILE> # parse + validate
roas convert --to v3_2 <FILE> # upconvert across versions
Input can be JSON or YAML; the parser is selected by file extension (.yaml / .yml → YAML, everything else → JSON).
validate
Auto-detects the spec version from the openapi / swagger field; pass --from to force. External $refs are skipped by default; opt in with --load:
roas validate spec.yaml # local refs only
roas validate --load file spec.yaml # follow `file://` $refs
roas validate --load http spec.yaml # follow `http(s)://` $refs
roas validate --load file --load http spec.yaml # both
--ignore <CHECK> skips a specific validation check; repeat the flag to skip more than one. The list is sourced from roas::validation::Options (via roas's clap feature), so it stays in sync with the library:
missing-tags, external-references, invalid-urls, non-uniq-operation-ids,
unused-path-items, unused-tags, unused-schemas, unused-parameters,
unused-responses, unused-server-variables, unused-examples,
unused-request-bodies, unused-headers, unused-security-schemes,
unused-links, unused-callbacks, unused-media-types,
empty-info-title, empty-info-version, empty-response-description,
empty-external-documentation-url
Run roas validate --help for descriptions of each check.
convert
Upconverts a spec to a target version by chaining the existing From<v_X::Spec> for v_Y::Spec migrations. Downconversion is not supported.
roas convert --to v3_2 spec.json
roas convert --to v3_1 --from v2 spec.yaml
Output is JSON on stdout.
License
Licensed under either of Apache License, Version 2.0 or MIT license at your option.