Files
phbar/Sources/phbar/Models/PHConfig/PHConfig+Loading.swift
T

43 lines
1.4 KiB
Swift

import Foundation
import TOML
extension PHConfig {
/// Load the configuration from the resolved config directory (see `PHPaths`).
/// If the file doesn't exist or fails to parse, the execution is interrupted.
static func load() throws -> PHConfig {
let url = PHPaths.configFile
if FileManager.default.fileExists(atPath: url.relativePath) {
return try load(from: url)
} else {
let config = url.lastPathComponent
throw PHBar.Error(
"""
Configuration file not found.
Make sure to have a file named `\(config)` inside the
directory: `\(PHPaths.configDirectory.relativePath)`
Tip: If you've never used phbar before, run the `phbar install` command
to automatically generate the required configuration files.
"""
)
}
}
/// Load the configuration from the file at URL.
/// If the file doesn't exist or fails to parse, the execution is interrupted.
static private func load(from url: URL) throws -> PHConfig {
do {
let data = try Data(contentsOf: url)
guard let contents = String(data: data, encoding: .utf8) else {
throw PHBar.Error("content is not UTF8 encoded.")
}
let decoder = TOMLDecoder()
let configFile = contents.expanded(from: ProcessInfo.processInfo.environment)
return try decoder.decode(PHConfig.self, from: configFile)
} catch {
throw PHBar.Error("Configuration file not readable", underlyingError: error)
}
}
}