config-dirs

Load a config file by trying out default config file locations:

• {NAME_SCREAMING_SNAKE_CASE}_CONFIG envitonment variable
• ~/.config/{name}/config.toml
• /etc/{name}/config.toml
• /usr/local/etc/{name}/config.toml
• ~/Library/Preferences/{name}/config.toml
• /usr/local/etc/{name}/config.toml

use serde::{Deserialize, Serialize};

#[derive(Debug, Deserialize, Serialize)]
struct Config {}

let config: Config = config_dirs::load("my-app", toml::from_str).expect("Failed to load config");

The case conversion of name for the environment variable is done using convert_case::Case::ScreamingSnake.

License