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Explain the concept of "cherry picking" in Git and how it can be done

 1 year ago
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Explain the concept of "cherry picking" in Git and how it can be done

In Git, "cherry picking" refers to the process of selecting and applying specific commits from one branch to another. It allows you to pick individual commits and apply them to a different branch, independent of the branch's commit history. Cherry picking is useful when you want to incorporate specific changes from one branch into another without merging the entire branch.

Here's an overview of how cherry picking works in Git:

1. Identify the commit(s) to cherry pick: Determine the commit(s) you want to apply to a different branch. You can find the commit hash or reference (e.g., branch name) of the commit you wish to cherry pick. You can use Git tools like `git log` or graphical Git clients to view the commit history and identify the desired commits.

2. Switch to the target branch: Switch to the branch where you want to apply the cherry-picked commit(s). Use the `git checkout` command followed by the branch name.


   git checkout <target-branch>

3. Cherry pick the commit(s): Use the `git cherry-pick` command followed by the commit hash or reference of the commit(s) you want to cherry pick.


   git cherry-pick <commit-hash>

For example, to cherry pick a single commit with the hash `abc123`, you would use:


   git cherry-pick abc123

If you want to cherry pick multiple commits, you can specify their hashes or references in the same command, separating them with spaces.


   git cherry-pick <commit-hash1> <commit-hash2> <commit-hash3> ...

4. Resolve conflicts (if any): If the cherry-picked commit(s) introduce conflicting changes with the target branch, Git may pause the cherry-pick process and prompt you to resolve the conflicts manually. You'll need to open the conflicted files, resolve the conflicts, and stage the changes using `git add`. Then, continue the cherry pick process using `git cherry-pick --continue`.

If you encounter conflicts, Git will guide you through the necessary steps and provide instructions on how to resolve them.

5. Complete the cherry pick: Once you have successfully cherry picked the commit(s), Git will create new commits on the target branch, replicating the changes from the cherry-picked commit(s) without including the commit history of the original branch. The new commit(s) will have different commit hashes but will apply the same changes.

6. Review and push the changes: After completing the cherry pick, you can review the changes, test them if needed, and then push the modified target branch to the remote repository using `git push`.


   git push origin <target-branch>

Conclusion:

Cherry picking allows you to select and apply specific changes from one branch to another, providing flexibility in incorporating desired commits. It's important to note that cherry picking can result in duplicate or divergent commits if the cherry-picked commit(s) were already present in the target branch or if subsequent changes conflict with the cherry-picked changes. Therefore, it's recommended to review the changes, resolve conflicts carefully, and test the resulting branch to ensure a coherent codebase.


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