Analyze Cargo.toml dependencies and attempt to remove unused features to reduce compile times and binary size
npxskills add quickwit-oss/tantivy--skill rationalize-depsLoading…
This skill analyzes Cargo.toml dependencies to identify and remove unused features.
Many crates enable features by default that may not be needed. This skill:
default-features = false worksAsk the user which crate(s) to analyze:
For the workspace Cargo.toml (quickwit/Cargo.toml), list dependencies that:
default-features = falseRun: cargo tree -p <crate> -f "{p} {f}" --edges features to see what features are actually used.
Look up the crate on crates.io or check its Cargo.toml to understand:
Use: cargo metadata --format-version=1 | jq '.packages[] | select(.name == "<crate>") | .features'
Modify the dependency in quickwit/Cargo.toml:
From:
some-crate = { version = "1.0" }
To:
some-crate = { version = "1.0", default-features = false }
Run: cargo check --workspace (or target specific packages for faster feedback)
If compilation fails:
some-crate = { version = "1.0", default-features = false, features = ["needed-feature"] }
If there are many default features, use binary search:
For each dependency analyzed, report:
After all changes, run:
cargo check --workspace --all-targets
cargo test --workspace --no-run
Often only needs derive:
serde = { version = "1.0", default-features = false, features = ["derive", "std"] }
Identify which runtime features are actually used:
tokio = { version = "1.0", default-features = false, features = ["rt-multi-thread", "macros", "sync"] }
Often doesn't need all TLS backends:
reqwest = { version = "0.11", default-features = false, features = ["rustls-tls", "json"] }
If changes cause issues:
git checkout quickwit/Cargo.toml
cargo check --workspace
cargo bloat --crates to identify large dependenciescargo tree -d for duplicate dependencies that might indicate feature conflicts[dev-dependencies] features
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