Problem

.cargo/config.toml does not have jsonshema.

So editor can not use schemastore to support tab-completion and validation.

Proposed Solution

cargo team implement jsonschema, publish and maintain related jsonschema in https://github.com/SchemaStore/schemastore.

So editor can use schemastore to support tab-completion and validation.

Tasks

• Added unstable-schema generation for Cargo.toml #14683
  • To generate the manifest.schema.json file, under the crates/cargo-util-schemas directory, run

    SNAPSHOTS=overwrite cargo test -F unstable-schema dump_manifest_schema

• Add a config mod to cargo-util-schemas that has a top-level struct and re-exports any types shared with other parts of the crate, generating a schema
• Migrate what structs we can from Cargo to cargo-util-schemas, being careful of non-trivial types, particularly InternedString

Future possibilities

• Similarly migrate the Index and cargo metadata into their respective mods in cargo-util-schemas

Notes

• doc

https://doc.rust-lang.org/cargo/reference/config.html

• vcpkg

microsoft/vcpkg#34706