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25 lines
712 B
Markdown
25 lines
712 B
Markdown
# 14. More About Cargo and Crates.io
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## Customizing Builds with Release Profiles
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=> Release profiles are predefined and customizable profiles with different configurations that allow a programmer to have more control over various options for compiling code.
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Cargo has 2 main profiles:
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- `dev`: for development (used by default with `cargo build`)
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- `release`: for release (used with `cargo build --release`)
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We can customize the `release` profile by adding a section to the `Cargo.toml` file:
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```toml
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[profile.dev]
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opt-level = 0
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[profile.release]
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opt-level = 3
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```
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## Publishing a Crate to Crates.io
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Packages can be published to [crates.io](https://crates.io/), the Rust community’s package registry.
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