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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift open source project
//
// Copyright (c) 2022-2023 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import Basics
import struct Foundation.URL
import protocol TSCBasic.FileSystem
import struct TSCBasic.RegEx
/// Represents an `.artifactbundle` on the filesystem that contains a Swift SDK.
public struct SwiftSDKBundle {
public struct Variant: Equatable {
let metadata: ArtifactsArchiveMetadata.Variant
let swiftSDKs: [SwiftSDK]
}
// Path to the bundle root directory.
public let path: AbsolutePath
/// Mapping of artifact IDs to variants available for a corresponding artifact.
public internal(set) var artifacts = [String: [Variant]]()
/// Name of the Swift SDK bundle that can be used to distinguish it from other bundles.
public var name: String { path.basename }
}
extension SwiftSDKBundle.Variant {
/// Whether the given host triple is supported by this SDK variant
internal func isSupporting(hostTriple: Triple) -> Bool {
guard let supportedTriples = metadata.supportedTriples else {
// No supportedTriples means the SDK can be universally usable
return true
}
return supportedTriples.contains(where: { variantTriple in
hostTriple.isRuntimeCompatible(with: variantTriple)
})
}
}
extension [SwiftSDKBundle] {
/// Select a Swift SDK with a given artifact ID from a `self` array of available Swift SDKs.
/// - Parameters:
/// - id: artifact ID of the Swift SDK to look up.
/// - hostTriple: triple of the machine on which the Swift SDK is building.
/// - targetTriple: triple of the machine for which the Swift SDK is building.
/// - Returns: ``SwiftSDK`` value with a given artifact ID, `nil` if none found.
public func selectSwiftSDK(id: String, hostTriple: Triple?, targetTriple: Triple) -> SwiftSDK? {
for bundle in self {
for (artifactID, variants) in bundle.artifacts {
guard artifactID == id else {
continue
}
for variant in variants {
if let hostTriple {
guard variant.isSupporting(hostTriple: hostTriple) else {
continue
}
}
return variant.swiftSDKs.first { $0.targetTriple == targetTriple }
}
}
}
return nil
}
/// Select Swift SDKs matching a given selector and host triple from a `self` array of available Swift SDKs.
/// - Parameters:
/// - selector: either an artifact ID or target triple to filter with.
/// - hostTriple: triple of the host building with these Swift SDKs.
/// - observabilityScope: observability scope to log warnings about multiple matches.
/// - Returns: ``SwiftSDK`` value matching `query` either by artifact ID or target triple, `nil` if none found.
func selectSwiftSDK(
matching selector: String,
hostTriple: Triple,
observabilityScope: ObservabilityScope
) -> SwiftSDK? {
var matchedByID: (path: AbsolutePath, variant: SwiftSDKBundle.Variant, swiftSDK: SwiftSDK)?
var matchedByTriple: (path: AbsolutePath, variant: SwiftSDKBundle.Variant, swiftSDK: SwiftSDK)?
for bundle in self {
for (artifactID, variants) in bundle.artifacts {
for variant in variants {
guard variant.isSupporting(hostTriple: hostTriple) else { continue }
for swiftSDK in variant.swiftSDKs {
if artifactID == selector {
if let matchedByID {
observabilityScope.emit(
warning:
"""
multiple Swift SDKs match ID `\(artifactID)` and host triple \(
hostTriple.tripleString
), selected one at \(
matchedByID.path.appending(matchedByID.variant.metadata.path)
)
"""
)
} else {
matchedByID = (bundle.path, variant, swiftSDK)
}
}
if swiftSDK.targetTriple?.tripleString == selector {
if let matchedByTriple {
observabilityScope.emit(
warning:
"""
multiple Swift SDKs match target triple `\(selector)` and host triple \(
hostTriple.tripleString
), selected one at \(
matchedByTriple.path.appending(matchedByTriple.variant.metadata.path)
)
"""
)
} else {
matchedByTriple = (bundle.path, variant, swiftSDK)
}
}
}
}
}
}
if let matchedByID, let matchedByTriple, matchedByID != matchedByTriple {
observabilityScope.emit(
warning:
"""
multiple Swift SDKs match the query `\(selector)` and host triple \(
hostTriple.tripleString
), selected one at \(matchedByID.path.appending(matchedByID.variant.metadata.path))
"""
)
}
return matchedByID?.swiftSDK ?? matchedByTriple?.swiftSDK
}
public var sortedArtifactIDs: [String] {
self.flatMap(\.artifacts.keys).sorted()
}
}
|
