app: unify config handling stuff a bit

This commit is contained in:
Schrottkatze 2024-01-15 09:03:55 +01:00
parent 6ccfaedb13
commit ea2e5d6075
Signed by: schrottkatze
GPG key ID: DFD0FD205943C14A
5 changed files with 94 additions and 74 deletions

View file

@ -1,74 +1,24 @@
use std::{
fs,
path::{Path, PathBuf},
process,
};
use clap::Parser;
use serde::{Deserialize, Serialize};
use self::{cli::Args, config_file::Configs};
use crate::error_reporting::{report_serde_json_err, report_serde_ron_err};
mod cli;
mod config_file;
#[derive(Debug, Serialize, Deserialize)]
pub struct Configs {
#[serde(default = "default_example_value")]
pub example_value: i32,
#[serde(default = "default_no_startup_msg")]
pub no_startup_message: bool,
/// this struct may hold all configuration
pub struct Config {
pub startup_msg: bool,
}
/// what the fuck serde why do i need this
fn default_example_value() -> i32 {
43
}
fn default_no_startup_msg() -> bool {
false
}
impl Config {
pub fn read() -> Self {
let args = Args::parse();
let cfg = Configs::read(args.config_file);
impl Configs {
pub fn read(custom_path: Option<PathBuf>) -> Self {
use owo_colors::OwoColorize;
let p = match custom_path {
Some(p) => p,
None => {
let config_path = dirs::config_dir().expect("config dir should exist");
let ron_path = config_path.with_file_name("config.ron");
let json_path = config_path.with_file_name("config.json");
if Path::new(&ron_path).exists() {
ron_path
} else if Path::new(&json_path).exists() {
json_path
} else {
eprintln!("{}: couldn't find config file", "Fatal error".red());
process::exit(1)
}
}
};
match p.extension().map(|v| v.to_str().unwrap()) {
Some("ron") => Self::read_json(&fs::read_to_string(p).unwrap()),
Some("json") => Self::read_ron(&fs::read_to_string(p).unwrap()),
None | Some(_) => {
eprintln!(
"{}: couldn't determine config file type",
"Fatal error".red()
);
process::exit(1)
}
}
}
pub fn read_json(config_text: &str) -> Configs {
match serde_json::from_str(config_text) {
Ok(c) => c,
Err(e) => report_serde_json_err(config_text, e),
}
}
pub fn read_ron(config_text: &str) -> Configs {
match ron::from_str(config_text) {
Ok(c) => c,
Err(e) => report_serde_ron_err(config_text, e),
Self {
// this is negated because to an outward api, the negative is more intuitive,
// while in the source the other way around is more intuitive
startup_msg: !(args.no_startup_message || cfg.no_startup_message),
}
}
}

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@ -0,0 +1,75 @@
use std::{
fs,
path::{Path, PathBuf},
process,
};
use serde::{Deserialize, Serialize};
use crate::error_reporting::{report_serde_json_err, report_serde_ron_err};
#[derive(Debug, Serialize, Deserialize)]
pub struct Configs {
#[serde(default = "default_example_value")]
pub example_value: i32,
#[serde(default = "default_no_startup_msg")]
pub no_startup_message: bool,
}
/// what the fuck serde why do i need this
pub(crate) fn default_example_value() -> i32 {
43
}
pub(crate) fn default_no_startup_msg() -> bool {
false
}
impl Configs {
pub fn read(custom_path: Option<PathBuf>) -> Self {
use owo_colors::OwoColorize;
let p = match custom_path {
Some(p) => p,
None => {
let config_path = dirs::config_dir().expect("config dir should exist");
let ron_path = config_path.with_file_name("config.ron");
let json_path = config_path.with_file_name("config.json");
if Path::new(&ron_path).exists() {
ron_path
} else if Path::new(&json_path).exists() {
json_path
} else {
eprintln!("{}: couldn't find config file", "Fatal error".red());
process::exit(1)
}
}
};
match p.extension().map(|v| v.to_str().unwrap()) {
Some("ron") => Self::read_json(&fs::read_to_string(p).unwrap()),
Some("json") => Self::read_ron(&fs::read_to_string(p).unwrap()),
None | Some(_) => {
eprintln!(
"{}: couldn't determine config file type",
"Fatal error".red()
);
process::exit(1)
}
}
}
pub fn read_json(config_text: &str) -> Configs {
match serde_json::from_str(config_text) {
Ok(c) => c,
Err(e) => report_serde_json_err(config_text, e),
}
}
pub fn read_ron(config_text: &str) -> Configs {
match ron::from_str(config_text) {
Ok(c) => c,
Err(e) => report_serde_ron_err(config_text, e),
}
}
}

View file

@ -1,19 +1,14 @@
use clap::Parser;
use cli::Args;
use config::Config;
use welcome_msg::print_startup_msg;
use crate::config::Configs;
mod cli;
mod config;
mod error_reporting;
mod welcome_msg;
fn main() {
let args = Args::parse();
let cfg = Configs::read(args.config_file);
let cfg = Config::read();
if !(args.no_startup_message || cfg.no_startup_message) {
if cfg.startup_msg {
print_startup_msg();
}
}

View file

@ -7,4 +7,4 @@ edition = "2021"
[dependencies]
serde = { workspace = true, features = [ "derive" ] }
ron = { workspace = true }
ron = "0.8"