.package(url: "https://github.com/shibapm/PackageConfig.git", from: "0.13.0")

#if canImport(PackageConfig)
    import PackageConfig

    let config = PackageConfiguration([
        "komondor": [
            "pre-push": "swift test",
            "pre-commit": [
                "swift test",
                "swift run swiftformat .",
                "swift run swiftlint autocorrect --path Sources/",
                "git add .",
            ],
        ],
        "rocket": [
            "after": [
            	"push",
            ],
        ],
    ]).write()
#endif

// PackageConfig parses PackageConfigs target in Package.swift to extract list of dylibs to link when compiling Package.swift with configurations
.target(name: "PackageConfigs", dependencies: [
    "ExampleConfig" // some executable configuration definition dylib
])

#if canImport(ExampleConfig) // example config dynamic library
import ExampleConfig

// invoking write is mandatory, otherwise the config won't be written // thanks captain obvious
let exampleConfig = ExampleConfig(value: "example value").write()
#endif

#if canImport(SomeLibraryConfig)
import SomeLibraryConfig

let someLibraryConfig = SomeLibraryConfig().write()
#endif

let package = Package(
    name: "Example",
    products: [
        // notice that product with your library config should be dynamic library in order to produce dylib and allow PackageConfig to link it when building Package.swift
        .library(name: "ExampleConfig", type: .dynamic, targets: ["ExampleConfig"]),
        // 
        .executable(name: "example", targets: ["Example"]),
    ],
    dependencies: [
        .package(url: "https://github.com/shibapm/PackageConfig.git", from: "0.0.2"),
    ],
    targets: [
        .target(name: "ExampleConfig", dependencies: ["PackageConfig"]),
        .target(name: "Example", dependencies: ["ExampleConfig"]),
    ]
)

import PackageConfig

// it must be public for you to use in your executable target
// also you must conform to `Codable` and `PackageConfig`
public struct ExampleConfig: Codable, PackageConfig {

    // here can be whatever you want as long as your config can stay `Codable`
    let value: String

   	// here you must define your config fileName which will be used to write and read it to/from temporary directory
    public static var fileName: String { return "example-config.json" }

    // public init is also a requirement
    public init(value: String) {
	self.value = value
    }
}

import ExampleConfig

do {
    let config = try ExampleConfig.load()
    print(config)
} catch {
    print(error)
}