![]() You’ll see a Create ist Section in Binary option - make sure this is set to Yes. Go to the Xcode target’s Build Settings and scrolling to Packaging section (or entering ist in the search field). But a command line tool isn’t a bundle, so where do you put its ist file? Notarisation relies on the Mac standard app identification system: the presence of an ist file within the app bundle. Getting GUI applications notarised is easy with Xcode, but it’s a little trickier for command line tools. I use Apple’s software notarisation system to provide users with a degree of trust that my apps are safe to use. Alternatively, you might recast your existing code as a class, which your command line tool instantiates and then calls methods to process the input and generate the results. ![]() Your code may be based on classes and that means integration with XCTest is straightforward. It works very well with object-oriented code, but less well with code that isn’t based on classes - like my command line tools. For GUI programs, I use Xcode’s own XCTest framework. ![]() I’ve been testing command-line programs with a series of test cases written within a shell script I created for the purpose. These are usually triggered when the user hits ctrl– c to cancel an unwanted operation. Update For more up-to-date info on trapping signals like ctrl-c/ SIGINT, check out this post: Tackle async signal safety in Swift.įirst, I set up a trap to catch attempts to interrupt the program. I’ll come back to code organisation when I talk about testing, but for now let’s just run through some key command-line tool components. There’s no main() function - your Swift code just runs from the top. Xcode provides a single file, main.swift, for all this, though you can break elements out into other files as you wish. You will have your own preference for the way your code is organised, but I follow a basic structure of constants, globals, functions and then the code that is executed when the program is launched. Xcode makes command line tool creation straightforward
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