rusty-tasks/src/config/mod.rs

68 lines
2.1 KiB
Rust

extern crate serde;
extern crate serde_json;
use figment::providers::{Env, Format, Json, Serialized};
use figment::Figment;
use serde::{Deserialize, Serialize};
use std::env::var;
use std::fs::File;
use std::io::Write;
use std::path::PathBuf;
#[derive(Deserialize, Serialize, Debug)]
pub struct Config {
pub editor: Option<String>,
pub sections: Option<Vec<String>>,
pub notes_dir: Option<String>,
}
impl Default for Config {
fn default() -> Self {
Config {
editor: Some("nano".into()),
sections: Some(vec!["Daily".into(), "Weekly".into(), "Monthly".into()]),
notes_dir: Some("Notes".into()),
}
}
}
impl Config {
pub fn load(cfg_file: &str) -> Result<Self, &'static str> {
Figment::from(Serialized::defaults(Config::default()))
.merge(Env::raw().only(&["EDITOR"]))
.merge(Json::file(cfg_file))
.extract()
.or(Err("Could not load config"))
}
pub fn write_default(cfg_file: &str) -> Result<(), &'static str> {
let buf = serde_json::to_string_pretty(&Self::default())
.or_else(|_| return Err("could not serialize default config"))?;
let mut f = File::create(cfg_file).or_else(|_| Err("Could not open config file"))?;
f.write_all(&buf.as_bytes())
.or_else(|_| return Err("could not write default config to file"))?;
Ok(())
}
pub fn expected_locations() -> Result<Vec<PathBuf>, &'static str> {
let cfg_name = "rusty_task.json";
let home = var("HOME").or(Err("$HOME environment variable not set"))?;
let pwd = var("PWD").or(Err("$PWD environment variable not set"))?;
let mut home_config_cfg = PathBuf::from(home.clone());
home_config_cfg.push(".config");
home_config_cfg.push(cfg_name);
let mut home_cfg = PathBuf::from(home.clone());
home_cfg.push(format!(".{}", cfg_name));
let mut pwd_cfg = PathBuf::from(pwd.clone());
pwd_cfg.push(cfg_name);
pwd_cfg.push(format!(".{}", cfg_name));
Ok(vec![home_config_cfg, home_cfg, pwd_cfg])
}
}