duodiff 0.1.0

A fast, cross-platform terminal user interface (TUI) directory comparison tool
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45

use serde::{Deserialize, Serialize};
use std::fs;
use std::path::PathBuf;

#[derive(Serialize, Deserialize, Clone, Debug, Default)]
pub struct AppSettings {
    pub external_diff_tool: Option<String>,
}

impl AppSettings {
    pub fn config_dir() -> Option<PathBuf> {
        std::env::var("HOME")
            .or_else(|_| std::env::var("USERPROFILE"))
            .ok()
            .map(|h| PathBuf::from(h).join(".config").join("duodiff"))
    }

    pub fn config_path() -> Option<PathBuf> {
        Self::config_dir().map(|d| d.join("config.toml"))
    }

    pub fn load() -> Self {
        if let Some(path) = Self::config_path() {
            if path.exists() {
                if let Ok(content) = fs::read_to_string(path) {
                    if let Ok(settings) = toml::from_str::<AppSettings>(&content) {
                        return settings;
                    }
                }
            }
        }
        AppSettings::default()
    }

    pub fn save(&self) -> Result<(), std::io::Error> {
        if let Some(dir) = Self::config_dir() {
            fs::create_dir_all(&dir)?;
            if let Some(path) = Self::config_path() {
                let content = toml::to_string(self).map_err(std::io::Error::other)?;
                fs::write(path, content)?;
            }
        }
        Ok(())
    }
}