Add a hidden flag to output the zip file location to .build/xcframework-zipfile.url

Author: bok-

Sources/CreateXCFramework/Command+Options.swift

@@ -45,6 +45,9 @@ extension Command {
 
         @Option(help: ArgumentHelp("The version number to append to the name of the zip file\n\nIf the target you are packaging is a dependency, swift-create-xcframework will look into the package graph and locate the version number the dependency resolved to. As there is no standard way to specify the version inside your Swift Package, --zip-version lets you specify it manually.", valueName: "version"))
         var zipVersion: String?
+
+        @Flag(help: .hidden)
+        var githubAction: Bool
 
 
         // MARK: - Targets

Sources/CreateXCFramework/Zipper.swift

@@ -46,6 +46,13 @@ struct Zipper {
         case let .signalled(signal: signal):
             throw XcodeBuilder.Error.signalExit(signal)
         }
+
+        // notify the action if we have one
+        if self.package.options.githubAction {
+            let data = Data(zipURL.path.utf8)
+            let url = Foundation.URL(fileURLWithPath: self.package.options.buildPath).appendingPathComponent("xcframework-zipfile.url")
+            try data.write(to: url)
+        }
     }
 
     private func zipCommand (source: Foundation.URL, target: Foundation.URL) -> [String] {