24 posts tagged with "git"

The fatal: unable to access error with the message "Write access to repository not granted" typically means you don't have the necessary permissions to push changes to the GitHub repository. It's a clear signal from the server that your authentication credentials, while valid, don't grant you the required write access.

Here's how to diagnose and solve this issue:

To fix a detached HEAD in Git, you need to save your work by creating a new branch or by checking out an existing one. A detached HEAD occurs when you check out a specific commit, tag, or a remote branch's commit instead of a local branch name (1). In this state, any new commits you make are not part of any branch, making them easy to lose.

The HEAD pointer in Git usually points to the tip of a branch (e.g., main, feature-a). A detached HEAD means the pointer is pointing directly to a commit instead of a branch.

Rebasing in Git is a powerful and often misunderstood tool. While its primary use is to integrate changes from one branch onto another, there are several "unusual" yet highly effective ways to leverage git rebase to clean up your commit history, fix mistakes, and collaborate more smoothly.

This guide explores some of these advanced use cases, focusing on their practical application and best practices.

In Git, the terms ours and theirs are used to refer to the two conflicting versions of a file during a merge or rebase. Understanding which version is which is critical for resolving conflicts correctly [1].

Replacing one Git branch with another is a destructive operation that rewrites the history of the target branch. The method you provided using git merge -s ours is a clever and safe way to achieve this without a hard reset. This guide will walk you through the process, explain the commands, and provide a clear, step-by-step example.

Rebasing is not recommended in two primary situations: when you are working on a public or shared branch and when the rebase operation would cause a significant loss of historical context.

How to Undo a Git Rebase​

Undoing a git rebase is a common task, especially if you've made a mistake or the rebase process introduced unexpected issues. The method you use depends on the state of your repository and whether you've pushed the changes to a remote repository.

Is rebase better than merge?​

Neither rebase nor merge is inherently "better"; they are different tools used for different purposes in Git. The choice between them depends on your workflow, your team's preferences, and whether you want a clean, linear history or an accurate, chronological record of events (3).

Rebasing a local branch onto a remote branch is a common workflow for keeping your feature branch up-to-date with the main development branch (like main or master) and maintaining a clean, linear commit history.

The process involves a few key steps: fetching the latest changes, checking out your local branch, performing the rebase, handling conflicts, and then force-pushing your changes if the branch was already shared.

Does git rebase affect other branches?

Yes, git rebase can affect other branches, but only if you rebase a branch that other developers have already pulled and started working from. Rebasing a local, unshared branch has no impact on other branches in the repository.

The key to understanding this lies in how rebase works. It rewrites the commit history of a branch by moving its commits to a new base. When you run git rebase, you're essentially creating a new set of commits that replace the original ones.