Support code injection !m!

[orta]

OK - THIS IS AMAZING.

My compile & run cycle just went from (and I counted) 11 seconds to ~1 second.

Before we start, check out this GIF

What is happening?

Injection: Dynamically re-compiles files you've saved, and ships those changes to your currently running app.

How does this work? In simple, it is an Xcode plugin that can compile your code into a bundle, this bundle is then added to your app. It will include newer versions of the classes you've injected via this bundle, then it is up to you to do something with this.

What does this PR do? So, the default behaviour of Injection is to allows re-compiled classes to know that they have been re-compiled. Given the viewDidLoad heavy view controllers we create I felt it would be better for our flow to work a little different from that.

Instead of letting the view controllers themselves act upon the injection, our top view controller is expanded to deal with the changes and adds some smart defaults. I've been recommending everyone use our developer extras to do their app cycle work: e,g,

- (void)runDeveloperExtras
{
    LiveAuctionViewController *liveVC = [[LiveAuctionViewController alloc] init];
    [self pushViewController:liveVC animated:YES];
}

I've expanded that to include a pop when injected, and to re-run the code inside developer extras. This means that the code inside runDeveloperExtras will be run on every injection. So you can keep working in the same file, constantly injecting new versions in again & again.

[mention-bot]

By analyzing the blame information on this pull request, we identified @ashfurrow to be a potential reviewer

[ArtsyOpenSource]

	1 Error
🚫	Developer Specific file shouldn't be changed

1 Warning

⚠️

Found unstubbbed networking requests ARArtworkFavoritesNetworkModelSpec in test_getFavorites__makes_request_if_no_request_is_in_progress ARArtworkViewControllerBuyButtonSpec in test_buy_button__posts_order_if_artwork_has_no_edition_sets ARCreateAccountViewControllerSpec in test_warning_view__displays_a_message ARCreateAccountViewControllerSpec in test_warning_view__displays_a_message AREmbeddedModelPreviewViewControllerSpec in test_iPhone_peek__shows_favorite_and_follow_buttons_for_logged_in_user AREmbeddedModelPreviewViewControllerSpec in test_iPhone_peek__shows_favorite_and_follow_buttons_for_logged_in_user AREmbeddedModelPreviewViewControllerSpec in test_iPhone_peek__passes_artwork_to_share_controller ARFairViewControllerSpec in test_creates_an_NSUserActivity ARGeneViewControllerSpec in test_creates_an_NSUserActivity ARGeneViewControllerSpec in test_creates_an_NSUserActivity ARTopMenuViewControllerSpec in test_navigation__favorites__logged_in__tab_behavior__already_selected__pops_to_root

Generated by 🚫 danger

[orta]

This Danger fail is totally legit, however, I am very purposely editing this file. So we can consider it green.

[ashfurrow]

👍🎉😻

[alloy]

Cool 👍