Package.swift

// swift-tools-version:5.2
// The swift-tools-version declares the minimum version of Swift required to build this package.

import class Foundation.ProcessInfo
import PackageDescription

// Workaround: Since we cannot include the flat just as command line options since then it applies to all targets,
// and ONE of our dependencies currently produces one warning, we have to use this workaround to enable it in _our_
// targets when the flag is set. We should remove the dependencies and then enable the flag globally though just by passing it.
let globalSwiftSettings: [SwiftSetting]
if ProcessInfo.processInfo.environment["WARNINGS_AS_ERRORS"] != nil {
    print("WARNINGS_AS_ERRORS enabled, passing `-warnings-as-errors`")
    globalSwiftSettings = [
        SwiftSetting.unsafeFlags(["-warnings-as-errors"]),
    ]
} else {
    globalSwiftSettings = []
}

var targets: [PackageDescription.Target] = [
    // ==== ------------------------------------------------------------------------------------------------------------
    // MARK: SWIM

    .target(
        name: "ClusterMembership",
        dependencies: [
        ]
    ),

    .target(
        name: "SWIM",
        dependencies: [
            "ClusterMembership",
            .product(name: "Logging", package: "swift-log"),
            .product(name: "Metrics", package: "swift-metrics"),
        ]
    ),

    .target(
        name: "SWIMNIOExample",
        dependencies: [
            "SWIM",
            .product(name: "NIO", package: "swift-nio"),
            .product(name: "NIOFoundationCompat", package: "swift-nio"),
            .product(name: "NIOConcurrencyHelpers", package: "swift-nio"),
            .product(name: "NIOExtras", package: "swift-nio-extras"),

            .product(name: "Logging", package: "swift-log"),
            .product(name: "Metrics", package: "swift-metrics"),
        ]
    ),

    // ==== ------------------------------------------------------------------------------------------------------------
    // MARK: Other Membership Protocols ...

    // ==== ------------------------------------------------------------------------------------------------------------
    // MARK: Documentation

    .testTarget(
        name: "ClusterMembershipDocumentationTests",
        dependencies: [
            "SWIM",
        ]
    ),

    // ==== ------------------------------------------------------------------------------------------------------------
    // MARK: Tests

    .testTarget(
        name: "SWIMTests",
        dependencies: [
            "SWIM",
            "SWIMTestKit",
        ]
    ),

    .testTarget(
        name: "SWIMNIOExampleTests",
        dependencies: [
            "SWIMNIOExample",
            "SWIMTestKit",
        ]
    ),

    // NOT FOR PUBLIC CONSUMPTION.
    .testTarget(
        name: "SWIMTestKit",
        dependencies: [
            .product(name: "NIO", package: "swift-nio"),
            .product(name: "Logging", package: "swift-log"),
            .product(name: "Metrics", package: "swift-metrics"),
        ]
    ),

    // ==== ------------------------------------------------------------------------------------------------------------
    // MARK: Integration Tests - `it_` prefixed

    .target(
        name: "it_Clustered_swim_suspension_reachability",
        dependencies: [
            "SWIM",
        ],
        path: "IntegrationTests/tests_01_cluster/it_Clustered_swim_suspension_reachability"
    ),

    // ==== ------------------------------------------------------------------------------------------------------------
    // MARK: Samples are defined in Samples/Package.swift
    // ==== ------------------------------------------------------------------------------------------------------------
]

var dependencies: [Package.Dependency] = [
    .package(url: "https://github.com/apple/swift-nio.git",        from: "2.19.0"),
    .package(url: "https://github.com/apple/swift-nio-ssl.git",    from: "2.8.0"),
    .package(url: "https://github.com/apple/swift-nio-extras.git", from: "1.5.1"),

    // ~~~ SSWG APIs ~~~

    .package(url: "https://github.com/apple/swift-log.git", from: "1.4.0"),
    // swift-metrics 1.x and 2.x are almost API compatible, so most clients should use
    .package(url: "https://github.com/apple/swift-metrics.git", "1.0.0" ..< "3.0.0"),
]

let products: [PackageDescription.Product] = [
    .library(
        name: "ClusterMembership",
        targets: ["ClusterMembership"]
    ),
    .library(
        name: "SWIM",
        targets: ["SWIM"]
    ),
    .library(
        name: "SWIMNIOExample",
        targets: ["SWIMNIOExample"]
    ),
]

var package = Package(
    name: "swift-cluster-membership",
    products: products,

    dependencies: dependencies,

    targets: targets.map { target in
        var swiftSettings = target.swiftSettings ?? []
        swiftSettings.append(contentsOf: globalSwiftSettings)
        if !swiftSettings.isEmpty {
            target.swiftSettings = swiftSettings
        }
        return target
    },

    cxxLanguageStandard: .cxx11
)