cfg-rs

cfg-rs provides a layered configuration formed by multi config source for rust applications.

Former crate salak.rs.

This lib supports:

• Easy to use, one line to create, [Configuration::init].
• Mutiple sources, such as environment variables, toml, yaml and json.
• Easily extends config source by implementing [crate::source::file::FileConfigSource].
• Programmatic override config by [ConfigurationBuilder::set].
• Auto derive config struct by proc-macro.
• Placeholder parsing with syntax ${config.key}.
• Using placeholder expresion to get random value by ${random.u64}, support all integer types.

See the examples for general usage information.