Clean on Xcode not working due to bin/data lacking attributes

[danoli3]

Could not delete bin because it was not created by the build system and it is not a subfolder of derived data.

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Could not delete `openFrameworksmacOS/apps/myApps/emptyExample/bin` because it was not created by the build system and it is not a subfolder of derived data.

Fix is applying an xattrib to the folder in the template and copying with cp -X or rsync.

I might just add to the projectGenerator code too with system command just to make it easier and bound in c++ rather than folder attributes which might not be pushed to git or zipped not sure

[danoli3]

Proposed solution:

#ifdef __APPLE__
#include <cstdlib>  // std::system
#endif
...
	if (fs::exists(projectDataDir)) {
		// originally only on IOS
		//this is needed for 0.9.3 / 0.9.4 projects which have iOS media assets in bin/data/
		// TODO: Test on IOS
        fs::path templateBinDir { templatePath / "bin" };
		fs::path templateDataDir { templatePath / "bin" / "data" };
		if (fs::exists(templateDataDir) && fs::is_directory(templateDataDir)) {
			baseProject::recursiveCopyContents(templateDataDir, projectDataDir);
		}
        if (fs::exists(templateBinDir) && fs::is_directory(templateBinDir)) {
#ifdef __APPLE__
            try {
                //  extended attributes on macOS
                std::string command = "xattr -w com.apple.xcode.CreatedByBuildSystem true " + templateBinDir.string();
                if (std::system(command.c_str()) != 0) {
                    std::cerr << "Failed to set extended attributes on " <<  templateBinDir.string() << std::endl;
                } else {
                    std::cout << "xattr set correctly for bin" << endl;
                }
            } catch (const std::exception& e) {
                std::cout << e.what() << std::endl;
            }
#endif
        }
	}
	```

[danoli3]

std::string command = "xattr -w com.apple.xcode.CreatedByBuildSystem true " + templateBinDir.string();

[danoli3]

One could also add to the Xcode build phases like: (in bash)

mkdir -p "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/bin"
xattr -w com.apple.xcode.CreatedByBuildSystem true "${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/bin"