What is the principle of gitlab's merge request?

GitLab is a popular version control management software used by many developers for collaboration and version control. One of the key features is the merge request (Merge Request), also known as merge request or merge request. This article will introduce the principles of merge requests and the process of integrating with GitLab, and how to use it in your team to improve productivity and collaboration.

Principle of merge request

A merge request is a special type of request in GitLab that is designed to merge changes in a branch into the main branch. In GitLab, each Git repository consists of a master branch and one or more feature branches. Developers often create a new feature branch to develop new features or resolve defects. Once the changes on the feature branch are ready for integration, the developer creates a merge request. This request contains details and comments about all changes so that others can view and review them.

Once a merge request is created, other developers, reviewers, or leaders (such as administrators) can view and review the merge request to check changes, code structure, documentation, unit tests, etc. If the merge requests pass review, administrators can merge them into the master branch and push the changes to production and other development teams.

In GitLab, the core of the merge request is the git merge command. This command allows merging changes on one branch into another branch. In GitLab, merge requests use this command to merge changes from a feature branch into the target (usually master) branch.

Merge requests in GitLab

In GitLab, merge requests are a special mechanism that allows team members to collaboratively develop projects. They can be used to merge code changes from one branch to another, conduct code reviews, and facilitate code review and collaboration.

Before fully understanding the basic operations and UI implementation methods of GitLab merge requests, let us first understand the most basic concepts of merge requests.

Create Merge Request

Merge requests are created in the GitLab web interface. To create a merge request, please do the following:

1. Select and click the " " button in the upper right corner of the GitLab project's main page.
2. Select the "New Merge Request" option and select the source branch (usually the feature branch) and the target branch (usually the master branch) to be merged.
3. Add a title and description for the merge request and choose to commit the code to the project.
4. If desired, select other options, such as assigning specific team members to review code changes, or creating a merge request under a specific tag (such as "WIP" or "Refactor").
5. Click the "Submit Merge Request" button.

Review Merge Request

After a new merge request is created, all members of the enterprise team can view and review it. It usually takes at least two people (not including the author) to approve and merge a request. Other members can leave comments in the code, ask questions or issues, or perform other reviews of the code.

Merge and Close Merge Requests

If the merge request is reviewed and the code is ready to be committed into the master branch, the administrator can merge it into the target branch. In GitLab, you can perform this operation using a simple "Merge" button. If an administrator decides not to merge a merge request or wants to wait for future changes, they can close it so that it can no longer be merged or reviewed.

GitLab Integration

GitLab is a flexible version control management tool that can be integrated with other tools and services to improve collaboration and productivity. If your team uses other tools such as JIRA, Slack, or HipChat, you can use GitLab’s API or integration plugin to connect these tools to improve collaboration.

The following are some common GitLab integration plug-ins and tools:

JIRA

Using JIRA plug-ins, you can merge merge requests and code submissions in GitLab with JIRA issues and tasks Associated. This way, developers and team members can view related JIRA issues and tasks in GitLab, and JIRA users can view GitLab incidents and merge requests in JIRA.

Jenkins

Jenkins is a popular continuous integration and deployment server. GitLab APIs and plugins can be integrated with Jenkins so that Jenkins can easily automate builds and deployments of merge requests or specified tasks.

Slack/HipChat

Slack and HipChat are popular chat and team collaboration tools. After GitLab integration, users can send notifications, merge requests or events directly from GitLab to Slack or HipChat teams Chatting.

Summary

GitLab merge requests are one of the most important collaboration tools in GitLab. It enables developers and team members to collaborate and communicate more easily, promoting more efficient code reviews and reviews, thereby delivering higher quality code and applications faster. In addition to basic merge request concepts and UI operations, GitLab can integrate with other tools and services to meet the needs of your team and increase productivity and collaboration.

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