79 lines
3.0 KiB
Swift
79 lines
3.0 KiB
Swift
import Foundation
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import SourceKittenFramework
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/// A value describing the version of the Swift compiler.
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public struct SwiftVersion: RawRepresentable, Codable, Comparable {
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public typealias RawValue = String
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public let rawValue: String
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public init(rawValue: String) {
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self.rawValue = rawValue
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}
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public static func < (lhs: SwiftVersion, rhs: SwiftVersion) -> Bool {
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return lhs.rawValue < rhs.rawValue
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}
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}
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public extension SwiftVersion {
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/// Swift 5.0.x - https://swift.org/download/#swift-50
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static let five = SwiftVersion(rawValue: "5.0.0")
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/// Swift 5.1.x - https://swift.org/download/#swift-51
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static let fiveDotOne = SwiftVersion(rawValue: "5.1.0")
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/// Swift 5.2.x - https://swift.org/download/#swift-52
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static let fiveDotTwo = SwiftVersion(rawValue: "5.2.0")
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/// Swift 5.3.x - https://swift.org/download/#swift-53
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static let fiveDotThree = SwiftVersion(rawValue: "5.3.0")
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/// Swift 5.4.x - https://swift.org/download/#swift-54
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static let fiveDotFour = SwiftVersion(rawValue: "5.4.0")
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/// Swift 5.5.x - https://swift.org/download/#swift-55
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static let fiveDotFive = SwiftVersion(rawValue: "5.5.0")
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/// Swift 5.6.x - https://swift.org/download/#swift-56
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static let fiveDotSix = SwiftVersion(rawValue: "5.6.0")
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/// Swift 5.7.x - https://swift.org/download/#swift-57
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static let fiveDotSeven = SwiftVersion(rawValue: "5.7.0")
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/// Swift 5.8.x - https://swift.org/download/#swift-58
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static let fiveDotEight = SwiftVersion(rawValue: "5.8.0")
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/// The current detected Swift compiler version, based on the currently accessible SourceKit version.
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///
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/// - note: Override by setting the `SWIFTLINT_SWIFT_VERSION` environment variable.
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static let current: SwiftVersion = {
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// Allow forcing the Swift version, useful in cases where SourceKit isn't available
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if let envVersion = ProcessInfo.processInfo.environment["SWIFTLINT_SWIFT_VERSION"] {
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switch envVersion {
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case "5":
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return .five
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default:
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return .five
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}
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}
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if !Request.disableSourceKit {
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// This request was added in Swift 5.1
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let params: SourceKitObject = ["key.request": UID("source.request.compiler_version")]
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if let result = try? Request.customRequest(request: params).send(),
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let major = result.versionMajor, let minor = result.versionMinor, let patch = result.versionPatch {
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return SwiftVersion(rawValue: "\(major).\(minor).\(patch)")
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}
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}
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return .five
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}()
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}
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private extension Dictionary where Key == String {
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var versionMajor: Int? {
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return (self["key.version_major"] as? Int64).flatMap({ Int($0) })
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}
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var versionMinor: Int? {
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return (self["key.version_minor"] as? Int64).flatMap({ Int($0) })
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}
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var versionPatch: Int? {
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return (self["key.version_patch"] as? Int64).flatMap({ Int($0) })
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}
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}
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