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extern crate serde;
use self::serde::de::DeserializeOwned;
pub mod config;
pub mod keymap;
pub mod mimetype;
pub mod preview;
pub mod theme;
pub use self::config::JoshutoConfig;
pub use self::keymap::JoshutoKeymap;
pub use self::mimetype::JoshutoMimetype;
pub use self::preview::JoshutoPreview;
pub use self::theme::JoshutoColorTheme;
pub use self::theme::JoshutoTheme;
pub fn search_config_hierarchy(filename: &str) -> Option<std::path::PathBuf> {
for path in ::CONFIG_HIERARCHY.iter() {
let filepath = path.join(filename);
if filepath.exists() {
return Some(filepath);
}
}
None
}
fn read_config(filename: &str) -> Option<String> {
let config_path = search_config_hierarchy(filename)?;
match std::fs::read_to_string(&config_path) {
Ok(content) => Some(content),
Err(e) => {
eprintln!("{}", e);
std::process::exit(1)
}
}
}
trait Flattenable<T> {
fn flatten(self) -> T;
}
fn parse_config<T, S>(filename: &str) -> Option<S>
where
T: DeserializeOwned + Flattenable<S>,
{
let config_contents = read_config(filename)?;
let config = match toml::from_str::<T>(&config_contents) {
Ok(config) => config,
Err(e) => {
eprintln!("Error parsing {} file: {}", filename, e);
std::process::exit(1);
}
};
Some(config.flatten())
}
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