58 lines
1.6 KiB
Rust
58 lines
1.6 KiB
Rust
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use std::env;
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use std::error::Error;
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use std::fs;
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use std::io;
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use std::path::PathBuf;
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use yaml_rust::{Yaml, YamlLoader};
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fn read_config(path: &PathBuf) -> io::Result<Option<String>> {
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match fs::read_to_string(path) {
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Err(err) => match err.kind() {
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// Ignore not found since we may try multiple paths.
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io::ErrorKind::NotFound => Ok(None),
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_ => Err(err),
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},
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Ok(contents) => Ok(Some(contents)),
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}
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}
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fn find_config() -> Result<Vec<Yaml>, Box<dyn Error>> {
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let mut paths: Vec<PathBuf> = Vec::new();
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if let Ok(xdg_config_home) = env::var("XDG_CONFIG_HOME") {
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paths.push(
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[&xdg_config_home, "homesync", "homesync.yml"]
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.iter()
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.collect(),
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);
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paths.push([&xdg_config_home, "homesync.yml"].iter().collect());
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}
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if let Ok(home) = env::var("HOME") {
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paths.push(
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[&home, ".config", "homesync", "homesync.yml"]
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.iter()
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.collect(),
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);
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paths.push([&home, ".homesync.yml"].iter().collect());
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}
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for path in paths {
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if let Ok(Some(contents)) = read_config(&path) {
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return Ok(YamlLoader::load_from_str(&contents)?);
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}
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}
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Err(Box::new(io::Error::new(
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io::ErrorKind::NotFound,
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"Could not find a homesync config.",
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)))
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}
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pub fn run(config: Option<String>) -> Result<(), Box<dyn Error>> {
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let _loaded = match config {
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Some(path) => {
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let contents = fs::read_to_string(path)?;
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YamlLoader::load_from_str(&contents)?
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}
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None => find_config()?,
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};
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Ok(())
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}
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