Continuous Integration

To Feature Branch or Not to Feature Branch?

Even when working with Agile methodologies and a Continuous Integration pipeline, some developers love feature branching – and they complain a lot when they are forbidden from using it!
The arguments in its favour are usually:
– “It makes easy to code review”
– “I can focus on my task and worry about conflicts later”
– “No feature branching means no code reviews. We will drop our code quality!”

Let’s discuss them 🙂

“It makes easy to code review”

Code reviews are essential in the team to ensure high quality and a consistent style in the code. Although it’s true that branches make easy to create pull requests, they are not the only way to review the code. I personally prefer to have a team meeting where all the commits are discussed all together face-to-face. There are several benefits in this approach:
– Misunderstandings are reduced – no more long cold threads comments arguing!
– Less experienced team members can learn from the most experienced ones.
– The team can discuss (and change if needed!) its guidelines and style when needed.

Unfortunately, there are some disadvantages as well:
– Meetings are time consuming and they need to be properly organised.
– Each developer needs to read the code to review before the meeting to build some basic understanding of it: again, discipline and time needed!

“I can focus on my task and worry about conflicts later”

Feature branching delays conflicts, doesn’t make them disappear! This is against the continuous integration methodology: it is better to discover conflicts as soon as we create them rather than on a Friday afternoon at 16.00 with the release scheduled on Monday at 11.00 (yes, it happened 😐 )

“We will drop our code quality!”

Actually, it’s the opposite! Feature branching discourages refactoring to avoid the generation of conflicts – if you ever had to deal with git conflict you know what I am talking about!

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