63 lines
2.2 KiB
Swift
63 lines
2.2 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2026 Apple Inc. and the container project authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//===----------------------------------------------------------------------===//
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import Foundation
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/// This is a thin wrapper around Measurement<UnitInformationStorage> to enable
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/// better Codable implementations for user provided options. With this wrapper
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/// values will get encoded and decoded from the format "1g" or "10mb".
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public struct MemorySize: Codable, Sendable, Equatable, CustomStringConvertible {
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public var description: String { formatted }
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public let measurement: Measurement<UnitInformationStorage>
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public init(_ string: String) throws {
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self.measurement = try .parse(parsing: string)
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}
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public init(from decoder: any Decoder) throws {
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let container = try decoder.singleValueContainer()
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let string = try container.decode(String.self)
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try self.init(string)
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}
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public func encode(to encoder: any Encoder) throws {
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var container = encoder.singleValueContainer()
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try container.encode(formatted)
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}
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private static let unitLabels: [UnitInformationStorage: String] = [
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.bytes: "b",
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.kibibytes: "kb",
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.mebibytes: "mb",
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.gibibytes: "gb",
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.tebibytes: "tb",
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.pebibytes: "pb",
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]
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public var formatted: String {
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let value = Int64(measurement.value)
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let label = Self.unitLabels[measurement.unit] ?? "unknown"
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return "\(value)\(label)"
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}
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}
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extension MemorySize {
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public func toUInt64(unit: UnitInformationStorage) -> UInt64 {
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UInt64(self.measurement.converted(to: unit).value.rounded())
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}
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}
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