caesura 0.20.0

An all-in-one command line tool to **transcode FLAC** audio files and **upload to gazelle** based indexers/trackers.
Documentation 
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use std::fs::read_to_string;
use std::path::PathBuf;

use colored::Colorize;
use di::injectable;
use log::*;

use crate::logging::Logger;
use crate::options::*;

/// Retrieve options
///
/// Options are retrieved from multiple sources, and merged in order of precedence:
/// 1. Command line arguments
/// 2. Config file defined by the `--config` command line argument
/// 3. `config.yml` in the current working directory
pub struct OptionsProvider {
    yaml: Option<String>,
}

#[injectable]
impl OptionsProvider {
    #[must_use]
    pub fn new() -> Self {
        let cli_options = SharedOptions::from_args().unwrap_or_default();
        Self {
            yaml: Some(read_config_file(&cli_options)),
        }
    }

    /// Get the [`Options`]
    #[must_use]
    pub fn get<T: Options>(&self) -> T {
        let mut options = T::from_args().unwrap_or_default();
        if let Some(yaml) = &self.yaml {
            if !yaml.is_empty() {
                match T::from_yaml(yaml) {
                    Ok(file_options) => {
                        options.merge(&file_options);
                    }
                    Err(error) => {
                        Logger::force_init();
                        error!("{} to deserialize config file: {}", "Failed".bold(), error);
                    }
                }
            }
        }
        options.apply_defaults();
        options
    }
}

/// Read the config file
///
/// Use the default config path if no path is set on the command line.
fn read_config_file(options: &SharedOptions) -> String {
    let path = options
        .config
        .clone()
        .unwrap_or_else(|| PathBuf::from(DEFAULT_CONFIG_PATH));
    read_to_string(path).unwrap_or_else(|error| {
        Logger::force_init();
        warn!("{} to read config file: {}", "Failed".bold(), error);
        "{}".to_owned()
    })
}