How to sync two different branches on GitLab

GitLab is a source code management platform that provides many tools to help programmers manage their source code. Branch operations are often involved in collaborative development. Branches can separate different codes for development and testing, but there may be problems with out-of-synchronization between branches. Let's discuss how to synchronize two different branches on GitLab.

1. Use merge requests

Merge requests are a feature in GitLab, which can help us implement merge operations between branches and synchronize the code between branches.

First, we need to make some code changes on two different branches and then commit them. Next, we create a merge request on the target branch, select the source branch to be merged, and click the "Submit Merge Request" button. At this point, GitLab will automatically detect the changes we made and provide us with some detailed information and options to merge. We can view the specific content of modifications, file differences and commit logs, and choose different merge methods as needed.

After selecting the merge method, we can submit the merge request to other developers for review. Reviewers can review the code and provide feedback, suggestions, and suggested changes, which helps us check the code quality before merging branches.

If after checking, we think the merge request is ready, we can click the "Merge Request" button, and GitLab will merge the code in the merge request into the target branch to complete synchronization between branches.

2. Use rebase

If the code on both branches has been modified, and we want to replace the old code with the latest code, then we can use the rebase operation. First, we need to switch to the target branch and pull the latest code. Next, we use the rebase command to merge the latest code from the source branch into the target branch, so that we can apply all modifications to the target branch to the latest source branch.

Assuming that our source branch is "branch-A" and the target branch is "branch-B", we can use the following command to synchronize the two branches:

$ git checkout branch-B  
$ git pull origin branch-B  
$ git rebase branch-A

In this way, we can Apply the changes to the latest code and retain all changes on the target branch.

In summary, gitlab synchronizing two different branches can be completed through merge requests and rebase operations. When collaborating on development, we need to pay attention to maintaining synchronization between branches to ensure code quality and work efficiency.

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