76 lines
2.4 KiB
Rust
76 lines
2.4 KiB
Rust
use std::fs::{create_dir_all, read_to_string, File};
|
|
use std::io::{ErrorKind, Write};
|
|
use std::path::Path;
|
|
|
|
use anyhow::{bail, Context, Result};
|
|
use serde_derive::{Deserialize, Serialize};
|
|
|
|
// Update the master README if fields change.
|
|
/// Config for the program, as listed in `$XDG_CONFIG_HOME/pacdef/pacdef.yaml`.
|
|
#[derive(Debug, Serialize, Deserialize)]
|
|
pub struct Config {
|
|
/// The AUR helper to use for Arch Linux.
|
|
pub aur_helper: String,
|
|
/// Additional arguments to pass to `aur_helper` when removing a package.
|
|
pub aur_rm_args: Option<Vec<String>>,
|
|
/// Warn the user when a group is not a symlink.
|
|
pub warn_not_symlinks: bool,
|
|
/// Backends the user does not want to use even though the binary exists.
|
|
pub disabled_backends: Vec<String>,
|
|
}
|
|
|
|
impl Config {
|
|
/// Load the config from the associated file.
|
|
///
|
|
/// # Errors
|
|
///
|
|
/// This function will return an error if the config file exists but cannot be read, its
|
|
/// contents are not UTF-8, or the file is malformed.
|
|
pub fn load(config_file: &Path) -> Result<Self> {
|
|
let from_file = read_to_string(config_file);
|
|
|
|
let content = match from_file {
|
|
Ok(content) => content,
|
|
Err(e) => {
|
|
if e.kind() == ErrorKind::NotFound {
|
|
bail!(crate::Error::ConfigFileNotFound)
|
|
}
|
|
bail!("unexpected error occured: {e:?}");
|
|
}
|
|
};
|
|
|
|
serde_yaml::from_str(&content).context("parsing yaml config")
|
|
}
|
|
|
|
/// Save the instance of [`Config`] to disk.
|
|
///
|
|
/// # Errors
|
|
///
|
|
/// This function will return an error if the config file cannot be saved to disk.
|
|
pub fn save(&self, file: &Path) -> Result<()> {
|
|
let content = serde_yaml::to_string(&self).context("converting Config to yaml")?;
|
|
|
|
let parent = file.parent().context("getting parent of config dir")?;
|
|
if !parent.is_dir() {
|
|
create_dir_all(parent)
|
|
.with_context(|| format!("creating dir {}", parent.to_string_lossy()))?;
|
|
}
|
|
|
|
let mut output = File::create(file).context("creating default config file")?;
|
|
write!(output, "{content}").context("writing default config")?;
|
|
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
impl Default for Config {
|
|
fn default() -> Self {
|
|
Self {
|
|
aur_helper: "paru".into(),
|
|
aur_rm_args: None,
|
|
warn_not_symlinks: true,
|
|
disabled_backends: vec![],
|
|
}
|
|
}
|
|
}
|