CI/CD - Use build number provided by CI/CD services

[phongvhd93]

Why

CI/CD tools like Bitrise, GitHubAction, and Codemagic provide the build number so we can use that for the build number of the application. We will update our templates for Bitrise and GitHubAction to get the following benefit:

• It is easier to track the commit of a version.
• Make the build number more predictable.
• Avoid duplicate build numbers when rebuilding the same commit (after registering a new device, we must re-deploy the app).
• CI machines don't have to clone the whole project history to get the correct number of commits, reducing the overall build time and the cost of running CI/CD.

Who Benefits?

@nimblehq/ios-chapter

[olivierobert]

@ducbm051291 This was assigned to @edgarss so for now it is still need to be assigned to him. It is part of his personal tasks to complete 🙏

[blyscuit]

To improve on @phongvhd93 AC. I think this is referring to https://devcenter.bitrise.io/en/builds/build-numbering-and-app-versioning.html and GITHUB_RUN_NUMBER from https://docs.github.com/en/actions/learn-github-actions/variables. Not sure about other CI providers. Just so that we are aligned 🙇 .

[Thieurom]

This is great and very convenient 🙏

However, we should be careful in case the project switches to another CI service in the middle of development.

Let's say that project has been using GitHub Action to deploy builds to TestFlight up to 1.2.0(250) using GITHUB_RUN_NUMBER. Now they have switched to Bitrise, and the very first build on Bitrise that uses BITRISE_BUILD_NUMBER would be 1.2.0(1). This is not what we expected. Furthermore, Apple might reject the build or silently increment the build, which is out of our control and confuse us.

As I see, Bitrise allows us to offset the build number. GitHub Action is not specifically for iOS, so we have to do that manually. And it seems more complicated than it should be (https://github.com/orgs/community/discussions/25386).

In either case, we should bear this in mind. We might note this on the Infrastructure of the Wiki 🙏