packageSwiftTemplate function

String packageSwiftTemplate(String pluginName, String className, String platformSpec, { bool isMacos = false, })

Generates the SPM Package.swift for pluginName.

platformSpec is e.g. 'iOS(.v13)' or 'macOS(.v10_15)'. isMacos switches the Xcode flag path between iOS and macOS conventions.

Implementation

String packageSwiftTemplate(
  String pluginName,
  String className,
  String platformSpec, {
  bool isMacos = false,
}) {
  return '''
// swift-tools-version: 5.9
import PackageDescription

let package = Package(
    name: "$pluginName",
    platforms: [.$platformSpec],
    products: [
        .library(name: "${pluginName.replaceAll('_', '-')}", targets: ["$pluginName"]),
    ],
    targets: [
        // C/C++ bridge — SPM requires Swift and C++ in separate targets.
        // nitro headers (nitro.h, dart_api_dl.h …) are copied into include/
        // by `nitrogen link`, so no extra header search path is needed.
        .target(
            name: "${className}Cpp",
            path: "Sources/${className}Cpp",
            publicHeadersPath: "include",
            cxxSettings: [
                .headerSearchPath("include"),
                .unsafeFlags(["-std=c++17"])
            ]
        ),
        // Swift implementation + generated bridge.
        .target(
            name: "$pluginName",
            dependencies: ["${className}Cpp"],
            path: "Sources/$className"
        ),
    ]
)
''';
}