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use std::path::PathBuf;
pub use clap::ArgMatches;
pub use config::Config as OroConfig;
use config::{builder::DefaultState, ConfigBuilder, ConfigError, Environment, File};
use miette::{Diagnostic, Result};
use thiserror::Error;
pub use oro_config_derive::*;
pub trait OroConfigLayer {
fn layer_config(&mut self, _matches: &ArgMatches, _config: &OroConfig) -> Result<()> {
Ok(())
}
}
#[derive(Debug, Error, Diagnostic)]
pub enum OroConfigError {
#[error(transparent)]
#[diagnostic(code(config::error))]
ConfigError(#[from] ConfigError),
#[error(transparent)]
#[diagnostic(code(config::error))]
ConfigParseError(#[from] Box<dyn std::error::Error + Send + Sync>),
}
#[derive(Debug, Clone)]
pub struct OroConfigOptions {
builder: ConfigBuilder<DefaultState>,
global: bool,
env: bool,
pkg_root: Option<PathBuf>,
global_config_file: Option<PathBuf>,
}
impl Default for OroConfigOptions {
fn default() -> Self {
OroConfigOptions {
builder: OroConfig::builder(),
global: true,
env: true,
pkg_root: None,
global_config_file: None,
}
}
}
impl OroConfigOptions {
pub fn new() -> Self {
Self::default()
}
pub fn global(mut self, global: bool) -> Self {
self.global = global;
self
}
pub fn env(mut self, env: bool) -> Self {
self.env = env;
self
}
pub fn pkg_root(mut self, root: Option<PathBuf>) -> Self {
self.pkg_root = root;
self
}
pub fn global_config_file(mut self, file: Option<PathBuf>) -> Self {
self.global_config_file = file;
self
}
pub fn set_default(mut self, key: &str, value: &str) -> Result<Self, OroConfigError> {
self.builder = self.builder.set_default(key, value)?;
Ok(self)
}
pub fn load(self) -> Result<OroConfig> {
let mut builder = self.builder;
if self.global {
if let Some(config_file) = self.global_config_file {
let path = config_file.display().to_string();
builder = builder.add_source(File::with_name(&path[..]).required(false));
}
}
if self.env {
builder = builder.add_source(Environment::with_prefix("oro_config"));
}
if let Some(root) = self.pkg_root {
builder = builder
.add_source(
File::with_name(&root.join("ororc").display().to_string()).required(false),
)
.add_source(
File::with_name(&root.join(".ororc").display().to_string()).required(false),
)
.add_source(
File::with_name(&root.join("ororc.toml").display().to_string()).required(false),
)
.add_source(
File::with_name(&root.join(".ororc.toml").display().to_string())
.required(false),
);
}
Ok(builder.build().map_err(OroConfigError::ConfigError)?)
}
}
#[cfg(test)]
mod tests {
use super::*;
use std::env;
use std::fs;
use miette::{IntoDiagnostic, Result};
use pretty_assertions::assert_eq;
use tempfile::tempdir;
#[test]
fn env_configs() -> Result<()> {
let dir = tempdir().into_diagnostic()?;
env::set_var("ORO_CONFIG_STORE", dir.path().display().to_string());
let config = OroConfigOptions::new().global(false).load()?;
env::remove_var("ORO_CONFIG_STORE");
assert_eq!(
config.get_string("store").into_diagnostic()?,
dir.path().display().to_string()
);
Ok(())
}
#[test]
fn global_config() -> Result<()> {
let dir = tempdir().into_diagnostic()?;
let file = dir.path().join("ororc.toml");
fs::write(&file, "store = \"hello world\"").into_diagnostic()?;
let config = OroConfigOptions::new()
.env(false)
.global_config_file(Some(file))
.load()?;
assert_eq!(
config.get_string("store").into_diagnostic()?,
String::from("hello world")
);
Ok(())
}
#[test]
fn missing_config() -> Result<()> {
let config = OroConfigOptions::new().global(false).env(false).load()?;
assert!(config.get_string("store").is_err());
Ok(())
}
}