cargo-docset is a tool allowing you to generate a Dash/Zeal compatible docset for your Rust packages and their dependencies.

cargo-docset depends on the SQLite3 library. You can either install the SQLite3 library on your system (see rusqlite's documentation for help), or build the version that is bundled in the libsqlite3-sys crate by turning on the bundled-sqlite feature flag when building cargo-docset.

You can install cargo docset with the usual cargo command: cargo install cargo-docset.

Just run cargo docset in your crate's directory to generate the docset. It will be placed in the target/docset directory. cargo-docset generally supports the same options as cargo doc, with a few additional ones. Run cargo docset --help for more information.

To install your shiny new docset, copy it to your Zeal/Dash docset directory (available in the preferences, on Zeal at least) and restart Zeal/Dash.

Currently, cargo docset runs cargo to generate the documentation, and then recursively walks the generated directory. The contents of every file is inferred from the file path, and cargo-docset then fills a SQLite database with the gathered information. The details of docset generation are available here.

cargo-docset does not (yet, at least) try to parse the generated documentation in any way, and therefore is limited in the granularity of the index it can provide. In particular, the generated docset does not make use of the table of contents feature.

Also, because cargo-docset walks through the whole doc directory, it must clear it before attempting to generate the docset, in case there is some previously generated documentation that we don't want to pickup in the docset there. You should probably not be storing anything of value in that directory anyway, but keep it in mind.

See here.