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In the course of developing, testing and distributing your app, different types of builds are produced. If you test these on a device, one might overwrite the other, or even a live version you’ve downloaded from the app store just to make sure everything works. In this post, I’ll propose some simple strategies to keep all of those builds separate and easily distinguishable on your test devices.
First things first: prevent debug, beta, and app store builds from overwriting each other on your test device. To do this, add a suffix to each of your non-app-store builds so they register as “different” apps on your iDevice. Here’s my setup:
Once you have multiple versions of your app on your device beside each other, you need a way to tell them apart. Inspired by Krzysztof Zabłocki’s KZBootstrap, I wanted to overlay some information about each build onto the icons, depending on the build variant. While KZBootstrap
seems like an amazing tool, I already had an Xcode project, and I wanted to insert a clean, minimal solution. I also didn’t want to bring any new dependencies in, like imagemagick
and ghostscript
as in KZBootstrap
and a few other solutions I found online.
After a little more searching, I found XcodeIconTagger
which only uses macOS’ Automator with a Quartz filter. I modified it to get a little more flexibility out of it in this fork. Now, I can create Run Script Build Phases surrounding the Copy Bundle Resources Build Phase that first create the icon overlay, and then after copying the icons to the installation, reset the git index to discard the changes.
tag-icons.sh
is a script that wraps some of the different types of overlays I’d like, depending on the build variant, into a convenient interface to which I can simply supply either tag
or cleanup
commands. (It can be found in shared-utils.) The conditional logic that decides what to display, and invocation of the underlying tool itself, is handled inside:
Now, I can tell all my builds apart on my device at once. Here I have a debugging development build, displaying the git commit hash that built it; a beta build, showing the semantic and build versions; a special build that visualizes touch input, which I use to create App Store preview videos; the App Store version itself, with no overlay.
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