Features

Check why and how a dependency in your workspace gets enabled. This is useful in cases where you encounter weird build errors which are caused by unintentional inclusion of dependencies or features.

Install

cargo install feature

Examples

Using substrate as example to find out how node-cli depends on pallet-proxy:

feature trace node-cli pallet-proxy

output after a few seconds (currently un-optimized :see_no_evil:):

[INFO  feature] Using manifest "../substrate/Cargo.toml"
[INFO  feature] Calculating shortest path from node-cli to pallet-proxy...
[INFO  feature] The shortest out of 2 paths:
node-cli -> kitchensink-runtime -> pallet-prox

Roadmap

• Add feature information to the enabled deps
• Allow manual skipping of dev dependencies (currently always skipped)
• Introduce filters for versions and features for argument to
• Optimize shortest_path function
• Create lint rules which can be used to validate that certain constraints in the work-space hold