Скачать или смотреть How to Merge Two Branches in Git without Switching Branches

Discover how to combine multiple branches in Git while staying on your current branch using an effective `worktree` technique.
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This video is based on the question https://stackoverflow.com/q/76199286/ asked by the user 'mohamadi_arch' ( https://stackoverflow.com/u/11738158/ ) and on the answer https://stackoverflow.com/a/76199464/ provided by the user 'eftshift0' ( https://stackoverflow.com/u/2437508/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Merging Branches in Git: A Quick Guide

Working with multiple branches in Git is a common part of collaborating on a software project. However, you might find yourself in a situation where you need to merge two branches while remaining on a third branch. This could lead to confusion about whether it's possible to do so or not. Let's dive into this issue and explore how to solve it effectively.

The Problem

Imagine you are currently working on Branch A and you need to merge Branch B and Branch C together. Typically, in Git, merging involves switching to the branch where you want to perform the merge. But what if you want to stay on Branch A? You might wonder if there is a way to execute the command:

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Unfortunately, the simple answer is no. You cannot merge two branches together while being on a different branch in Git. However, there is a workaround that you can follow.

The Solution: Using git worktree

If you need to merge branches without switching, you can utilize the git worktree feature. This allows you to create a temporary workspace for the branch you want to merge without leaving your current branch. Here’s how to do it step-by-step:

Step 1: Create a Temporary Worktree

To start, you'll want to create a new worktree for Branch B.

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This command creates a new directory (named blahblah in this case) with the contents of Branch B.

Step 2: Navigate to the Worktree

Next, change your directory to this newly created worktree.

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This allows you to work with Branch B as if you’ve checked it out, but you are still on Branch A in your original workspace.

Step 3: Merge Branch C into Branch B

Now, execute the merge command to merge Branch C into Branch B.

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This step will perform the merge directly inside the worktree you just created.

Step 4: Return to Your Original Directory

Once the merge is complete, you can go back to your original directory.

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This will take you back to your main working directory where you were operating on Branch A.

Step 5: Clean Up the Temporary Worktree

Finally, to keep your repository tidy, you should remove the temporary worktree you created.

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This command will clean up the workspace and leave your main branch unaffected.

Conclusion

While Git does not allow merging from a branch you're not currently checked out on, using git worktree provides a practical solution to this limitation. By following the steps outlined above, you can easily merge branches without the hassle of switching between them. This can be particularly useful in collaborative environments where you often juggle multiple branches.

Keep practicing with Git, and you'll find that managing branches and merges can become a smooth part of your development workflow!