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import PackagePlugin
import Foundation
@main
struct Plugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target) async throws -> [Command] {
if !target.recursiveTargetDependencies.contains(where: { $0.name == "_CabiShims" }) {
Diagnostics.emit(.error, "\"_CabiShims\" must be included as a dependency")
}
let witTool = try context.tool(named: "WITTool").path
let witDir = target.directory.appending("wit")
let inputFiles = try FileManager.default.subpathsOfDirectory(atPath: witDir.string).map {
witDir.appending(subpath: $0)
}
let outputFile = context.pluginWorkDirectory.appending("GeneratedOverlay", "\(target.name)Overlay.swift")
let command = Command.buildCommand(
displayName: "Generating WIT overlay for \(target.name)",
executable: witTool,
arguments: [
"generate-overlay", "--target", "guest",
witDir, "-o", outputFile
],
inputFiles: inputFiles,
outputFiles: [outputFile]
)
return [command]
}
}
extension FileManager {
internal func isDirectory(filePath: String) -> Bool {
var isDirectory: ObjCBool = false
let exists = self.fileExists(atPath: filePath, isDirectory: &isDirectory)
return exists && isDirectory.boolValue
}
}
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