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use serde::{Deserialize, Serialize, de::Error as DeError};
use std::fs;
use toml;
#[derive(Deserialize, Debug, Serialize, Clone)]
#[serde(rename_all = "lowercase")]
pub enum Loglevel {
Trace,
Debug,
Info,
Warn,
Error,
}
/// `mesk.toml` configuration fields here
#[derive(Deserialize, Debug, Serialize, Clone)]
pub struct Config {
pub repo: Repo,
pub log: Log,
pub paths: Paths,
}
#[derive(Deserialize, Debug, Serialize, Clone)]
pub struct Log {
#[serde(rename = "log_file")]
pub log_file: String,
#[serde(rename = "log_level")]
pub log_level: Loglevel,
}
// Rename needed for editing mesk.toml file fields but dont touch code.
#[derive(Deserialize, Debug, Serialize, Clone)]
pub struct Repo {
#[serde(rename = "repo_url")]
pub repo_url: String,
#[serde(rename = "auto_update")]
pub auto_update: bool,
#[serde(rename = "destination")]
pub destination: (String, String),
#[serde(rename = "repo_http_url")]
pub repo_http_url: Option<String>,
#[serde(rename = "i2p_http_proxy_port")]
pub i2p_http_proxy_port: u16,
// #[serde(rename = "arch")]
// pub arch = arch;
}
#[derive(Deserialize, Debug, Serialize, Clone)]
pub struct Paths {
#[serde(rename = "cache_dir")]
pub cache_dir: String,
#[serde(rename = "build_dir")]
pub build_dir: String,
pub installed_db: String,
}
impl Config {
/// Parse configuration and return the Config object.
///
/// This function first tries to read the `MESK_CONFIG_TOML` environment variable
/// containing the full TOML configuration. If it is not set, it falls back to
/// reading the `/etc/mesk/mesk.toml` file.
pub fn parse() -> Result<Config, toml::de::Error> {
// Prefer an explicit in-memory config for tests and overrides.
if let Ok(env_contents) = std::env::var("MESK_CONFIG_TOML") {
let result: Config = toml::from_str(&env_contents)?;
return Ok(result);
}
// Fallback to the system-wide config file.
let contents = fs::read_to_string("/etc/mesk/mesk.toml").map_err(|io_err| {
DeError::custom(format!(
"Failed to read /etc/mesk/mesk.toml and MESK_CONFIG_TOML is not set: {}",
io_err
))
})?;
let result: Config = toml::from_str(&contents)?;
Ok(result)
}
/// Return the default configuration as a toml string.
///
/// This function returns the default configuration as a toml string.
#[allow(clippy::should_implement_trait)]
pub fn default() -> Result<String, toml::ser::Error> {
let default: Config = Config {
repo: Repo {
repo_url: format!("https://mesk.anthrill.i2p/repo/{}/", std::env::consts::ARCH),
auto_update: true,
destination: (String::from("mesk"), String::from("mesk")),
repo_http_url: format!(
"http://github.com/Anthrill/repo-mirror/{}",
std::env::consts::ARCH
)
.into(),
i2p_http_proxy_port: 4444,
// Its a hurt place, you need to generate destinations by i2pd and paste here (to mesk.toml)
// Better to leave it empty or set it to (mesk, mesk), now destination conn not implemented
},
log: Log {
log_file: String::from("/var/log/mesk.log"),
log_level: Loglevel::Info,
},
paths: Paths {
cache_dir: String::from("/var/cache/mesk"),
build_dir: String::from("/var/lib/mesk"),
installed_db: String::from("/var/lib/mesk/pkgdb"),
},
};
let toml_str = toml::to_string(&default)?;
Ok(toml_str)
}
pub fn generate(
repo: &Option<String>,
cachedir: &Option<String>,
buildir: &Option<String>,
installed_db: &Option<String>,
) -> Result<String, toml::ser::Error> {
let generator: Config = Config {
repo: Repo {
repo_url: if repo.is_none() {
format!("https://mesk.anthrill.i2p/repo/{}/", std::env::consts::ARCH)
} else {
repo.clone().unwrap()
},
auto_update: true,
destination: (String::from("mesk"), String::from("mesk")),
repo_http_url: None,
i2p_http_proxy_port: 4444,
},
log: Log {
log_file: String::from("/var/log/mesk.log"),
log_level: Loglevel::Info,
},
paths: Paths {
cache_dir: if cachedir.is_none() {
String::from("/var/cache/mesk")
} else {
cachedir.clone().unwrap()
},
build_dir: if buildir.is_none() {
String::from("/var/cache/mesk/build")
} else {
buildir.clone().unwrap()
},
installed_db: if installed_db.is_none() {
String::from("/var/cache/mesk/pkgdb")
} else {
installed_db.clone().unwrap()
},
/*
FIXME: I can leave this parameter, but I think it would be better to make the build
path in the /var/cache/mesk/$pkgname-$pkgver/BUILD/
*/
},
};
toml::to_string(&generator)
}
}
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