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How to view the git merge map

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2023-05-20 12:10:381187browse

With the popularity of Git in software development, how to use Git reasonably has become one of the problems that programmers must face. As an important method in Git tools, Git merge graph can help us understand the merging situation of code more clearly and effectively solve problems such as merge conflicts. So, how to understand the Git merge map? Below we will explain the meaning, basic shape, and related operations of the Git merge diagram itself.

1. The meaning of the Git Merge Graph

The Git Merge Graph (Git Merge Graph) is a visual tool used to display the merge records of the Git code base. It graphically represents the history of each branch as an independent branch, showing the source, destination, and associated details of each code commit. Git merge diagrams can easily show the relationships between multiple branches and demonstrate the cross-merging of code between different branches.

2. The basic shape of the Git merge graph

There are two basic shapes of the Git merge graph: horizontal merge and vertical merge.

  1. Horizontal merge

Horizontal merge refers to the merge of multiple branches at the same point in time. On the Git merge diagram, the horizontally merged trunk will move to the right, the branches will bubble drift to the left, and the codes of different branches will be merged on one node. The diagram is as follows:

How to view the git merge map

In this example, the branch feature was modified differently at two points in time, A and B. At point C, the branch feature was horizontally merged with the trunk. Point C contains both the modifications of branches A and B, as well as the modifications made by the feature branch.

  1. Vertical merge

Vertical merge refers to the merge of a single branch at different points in time. On the Git merge graph, the vertically merged trunk is still in the center, but the branches will have different bubbles at one point in time, as shown below:

How to view the git merge map

In this example , drag the stem from left to right. The feature branch made different modifications at points A and B, and then merged vertically into the trunk respectively, and finally merged the modifications of the two branches at point C. We can see that the relationship between the feature branch and the trunk is always kept separate, so that the modification history of each branch can be displayed more clearly.

3. Related operations of Git merge graph

  1. View merge history

To view the merge history of Git merge graph, you can use Git command line tool or GUI tool. Enter the following command in the command line terminal to view the Git merge record:

git log --graph

This command will output the Git merge history and use ASCII characters to represent the merged structure. If you want to use a more concise and readable format, you can use the following command:

git log --graph --oneline

This command will output a more streamlined Git merge diagram, and the ASCII characters will be more clearly visible.

  1. Resolving Merge Conflicts

During Git merge operations, you often encounter some merge conflicts that need to be resolved manually. Resolving merge conflicts can be done using visual Git tools. For example, using the Git Kraken GUI tool, simply click on conflicting files to compare and merge different versions of the files.

How to view the git merge map

Using the above operations to resolve merge conflicts can resolve merge issues faster and more efficiently.

Conclusion

Through the introduction of the above content, we can see the important role of the Git merge graph in code merging and the related basic shapes and operations. By mastering the Git merge graph, we can more clearly understand the source, destination and related details of each code submission, avoid merge conflicts and errors, and thereby improve the efficiency and quality of code development.

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