config-rs

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``` let mut builder = Config::builder() .add_source(File::with_name(&config_path).format(FileFormat::Json).required(false)) .add_source(Environment::default().prefix("CONFIG").prefix_separator("_").separator("__").convert_case(Case::UpperCamel)); ``` If the file contains: ``` Otel { Endpoint: "FROM FILE" } ``` And the environment variable "CONFIG_OTEL__ENDPOINT" equals "FROM ENV" getting...

dtessman

Add support for environment substitution within config files

1

Coming from a Spring background, I'm missing the possibility of expansion of environment variables referenced from within configuration files, giving an even more flexible approach next to overriding properties which...

awgroeneveld

feat(env): underscore field nesting for single `_` separators

3

Allow to nest with single `_` even when field names contain underscores via `.underscore_nesting(true)``. Can be used when field names also have `_` with environment overrides. Can be used as...

aleris

Deserializing into a `config::Value` loses `origin`

1

I've tried searching the issue tracker for similar issues but surprisingly it seems no one has run into this so far. Parts of my configuration is dynamic, I wanted to...

andor-ra2

Make path::Expression module public

6

I'm working on feature control library and would like to take dependency on Value and path::Expression. Unfortunately, path::Expression is not public module. It is useful even outside the context of...

hkr1990

To support #648

TAYTS

Related issue #648

TAYTS

Not quite sure whether to considering removing these to be a breaking change or not.

epage

Can it support eon？

8

Can it support eon？ [eon](https://github.com/emilk/eon)

jellybobbin

Support for reading .env files

10

I've noticed that `.add_source(config::File::with_name(".env"))` does not work because .env "is not of a registered file format" I think this library should support reading .env files, as well as `.env.prod`, etc.....

iTrooz