Git

How to Fix Wrong Git Commits in Android Studio and Safely Remove Unwanted Remote Commits

How to Fix Wrong Git Commits in Android Studio and Safely Remove Unwanted Remote Commits

If you’ve ever opened GitHub and noticed the wrong name on your commits — or spotted a commit on your main branch that never should’ve been there. These are some of the most common (and stressful) Git problems developers run into, especially when working in teams or switching between multiple accounts.

The good news is this: Git gives you the tools to fix both issues cleanly. The bad news? Using the wrong command can make things worse if you don’t understand what’s really going on.

This guide walks you through:

  • Why Android Studio shows the wrong Git user
  • How to correctly change the Git author (without breaking anything)
  • How to fix commits that are already pushed
  • When to remove commits entirely vs safely reverting them
  • Best practices to avoid these problems in the future

Everything here is based on how Git actually works under the hood — not IDE myths.

Why Android Studio Shows the Wrong Git User

Let’s clear up the most common misunderstanding first:

Android Studio does not control your Git commit author. Git does.

Android Studio is just a client. When you click “Commit,” it asks Git two questions:

  • What is the author name?
  • What is the author email?

Git answers based on its configuration files. That’s it.

So changing your GitHub account inside Android Studio affects authentication (push and pull permissions), but it does not change the commit author. That’s why this issue keeps coming back.

How Git Decides Who You Are

Git identifies authors using two values:

  • user.name
  • user.email

These can exist at two levels:

  1. Global — applies to all repositories on your machine
  2. Local (project-specific) — applies only to the current repository

Git always prefers local settings over global ones.

The Correct Way to Change Git User in Android Studio (Recommended)

If you work on multiple projects or use more than one GitHub account, this is the safest approach.

Step 1: Open the Terminal in Android Studio

Open your project, then click Terminal at the bottom.

Step 2: Set the Git user for this project only

Bash
git config user.name "Your Correct Name"<br>git config user.email "[email protected]"

Step 3: Verify

Bash
git config user.name<br>git config user.email

From this point forward, all new commits in this project will use the correct author.

Changing Git User Globally (Use With Caution)

If every repository on your machine is using the wrong user, update the global config:

Bash
git config --global user.name "Your Name"<br>git config --global user.email "[email protected]"

Verify with:

Bash
git config --global --lista

This affects all Git repositories on your system.

Why Switching GitHub Accounts Doesn’t Fix Commit Names

Android Studio’s GitHub settings only control:

  • Authentication
  • Push and pull permissions

They do not control commit authorship. That’s why you can push to one account while commits show another name entirely.

SSH Keys: Why Pushes Go to the Wrong Account

If you’re using SSH, GitHub identifies you by your SSH key, not your username.

Check which account your machine is using:

Bash
ssh -T [email protected]

If GitHub responds with the wrong username, your SSH key is attached to the wrong account.

The Correct Fix

  • Generate a new SSH key
  • Add it to the correct GitHub account
  • Configure ~/.ssh/config to explicitly use that key

This ensures commits and permissions align correctly.

Why Existing Commits Don’t Update Automatically

Changing Git config only affects future commits.

Once a commit exists:

  • Its author is permanent
  • It cannot be changed unless history is rewritten

That’s intentional. Git values integrity over convenience.

How to Fix the Author of the Last Commit

If the most recent commit has the wrong author:

Bash
git commit --amend --author="Your Name <[email protected]>"<br>git push --force-with-lease

Only do this if rewriting history is acceptable.

Fixing Multiple Commits With the Wrong Author

Use interactive rebase:

Bash
git rebase -i HEAD~N

Change pick to edit for the commits you want to fix, then run:

Bash
git commit --amend --author="Your Name <[email protected]>"<br>git rebase --continue

Finish with:

Bash
git push --force-with-lease

Removing an Unwanted Commit From a Remote Repository

This is where many developers panic. The right solution depends on who else is affected.

Option 1: Hard Reset (Deletes History)

Use this only if:

  • It’s your personal branch, or
  • The commit contains sensitive data

Steps

Bash
git log --oneline<br>git reset --hard <last-good-commit><br>git push origin <branch> --force-with-lease

Everyone else must reset their local branch afterward.

Option 2: Revert (Safest for Teams)

If the branch is shared or protected, always revert.

Bash
git revert <bad-commit-hash><br>git push origin <branch>

This creates a new commit that undoes the change without rewriting history.

When to Use Reset vs Revert

SituationRecommended
Secrets pushedReset + force push
Mistake on mainRevert
Cleaning your feature branchReset
Team already pulledRevert

Removing Multiple Commits Cleanly (Interactive Rebase)

For mixed good and bad commits:

Bash
git rebase -i HEAD~5

Change pick to drop for unwanted commits, then:

Bash
git push --force-with-lease

Always create a backup branch first:

git branch backup-before-cleanup

Common Mistakes to Avoid

  • Force-pushing without warning your team
  • Using --force instead of --force-with-lease
  • Rewriting history on protected branches
  • Forgetting to back up before rebasing

If something goes wrong, git reflog can usually save you.

Best Practices to Prevent These Issues

  • Always verify Git user before starting a project
  • Prefer project-level Git config
  • Use separate SSH keys for different accounts
  • Protect main branches with PR rules
  • Never force-push without coordination
  • Keep commit emails matching your GitHub account

Conclusion

Android Studio often gets blamed for Git problems it doesn’t actually control. Once you understand that Git owns identity and history, everything becomes easier to reason about — and fix.

By setting the correct Git user, managing SSH keys properly, and choosing the right strategy for removing commits, you can keep your repositories clean without disrupting your team.

If you treat Git history with intention instead of panic, it becomes a powerful tool instead of a constant source of stress.

Adding Images to GitHub Gists

Adding Images to GitHub Gists: What Works, What Doesn’t, and Why

GitHub Gists are great for sharing small pieces of code, configuration files, or quick notes. They’re fast, lightweight, and easy to link.

But many developers hit the same question sooner or later:

How do we add images to GitHub Gists?

If you’ve tried uploading an image directly or embedding one like you would on GitHub README files, you’ve probably noticed it’s not straightforward.

In this guide, we’ll walk through adding Images to GitHub Gists in detail. You’ll learn what works, what doesn’t, and why GitHub behaves the way it does. We’ll also cover reliable methods with clear examples you can use right away.

Why Adding Images to GitHub Gists Is Confusing

GitHub Gists look similar to repositories, but they’re not the same thing.

A few key differences matter here:

  • Gists are designed for small, single-purpose snippets
  • They don’t have a full file browser like repos
  • They don’t support direct image uploads through the UI

Because of this, adding Images to GitHub Gists require a different approach.

Can We Upload Images Directly to a GitHub Gist?

Short answer: No.

GitHub Gists do not support direct image uploads the way repositories do.

You can:

  • Paste text files
  • Add Markdown
  • Add code files

But you cannot:

  • Upload PNG, JPG, or GIF files directly
  • Drag and drop images into a Gist

That’s not a bug. It’s a design choice.

The Correct Way to Add Images to GitHub Gists

Even though you can’t upload images directly, you can display images in a Gist using external image hosting.

The idea is simple:

  1. Host the image somewhere else
  2. Embed it using Markdown

Let’s go through the working methods.

Method 1: Using GitHub Repository Images (Most Reliable)

This is the best and most stable way to add Images to GitHub Gists.

Step 1: Upload the Image to a GitHub Repository

Create a repository or use an existing one, then upload your image:

Markdown
my-repo/
└── images/
    └── img1.png

Once uploaded, click the image and copy the raw URL.

It will look like this:

Markdown
https://raw.githubusercontent.com/username/repo/main/images/img1.png
Step 2: Embed the Image in Your Gist

Use standard Markdown syntax inside your Gist:

Markdown
![Example Image1](https://raw.githubusercontent.com/username/repo/main/images/img1.png)
  • ! tells Markdown this is an image
  • Example Image1 is the alt text (important for accessibility and SEO)
  • The URL points to the raw image file

This method works consistently and is trusted by GitHub.

Method 2: Using GitHub Issues or Comments as Image Hosts

This method is popular but less controlled.

How It Works
  1. Open any GitHub issue or discussion
  2. Drag and drop your image into the comment box
  3. GitHub uploads the image and generates a CDN URL

The URL will look like this:

Markdown
https://user-images.githubusercontent.com/12345678/img2.png
Embed It in Your Gist
Markdown
![Screenshot](https://user-images.githubusercontent.com/12345678/img2.png)
Pros and Cons

Pros

  • Quick and easy
  • No extra repo needed

Cons

  • Image ownership is unclear
  • Harder to manage long-term
  • Not ideal for documentation that must last

For short-lived examples, this approach works. For professional use, prefer repositories.

Method 3: Using External Image Hosting Services

You can also use services like:

  • Imgur
  • Cloudinary
  • Your own server
Markdown
![Flow Diagram](https://example-cdn.com/images/flow.png)

Important Notes

  • Make sure the image URL is public
  • Avoid services that block hotlinking
  • Prefer HTTPS for security

This method works, but reliability depends on the host.

What Does NOT Work (Common Mistakes)

Understanding what doesn’t work is just as important.

1. Relative Paths

This will not work in Gists:

Markdown
![Image](./image.png)

Why?
Because Gists don’t have a file system like repositories.

2. HTML <img> Tags with Local Files

This also fails:

Markdown
<img src="image.png" />

The browser has no idea where image.png lives.

3. Dragging Images into Gists

You can drag images into GitHub issues, but not into Gists.

If you try, nothing happens.

Why GitHub Designed Gists This Way

GitHub Gists are meant to be:

  • Lightweight
  • Fast
  • Focused on code

Allowing image uploads would:

  • Increase storage costs
  • Complicate versioning
  • Move Gists away from their core purpose

That’s why adding Images to GitHub Gists rely on external hosting.

Best Practices for Adding Images to GitHub Gists

To keep your Gists clean and professional, follow these tips:

Use Descriptive Alt Text

Instead of:

Markdown
![img](url)

Use:

Markdown
![API response structure diagram](url)

This improves:

  • Accessibility
  • Search visibility
  • AI answer extraction

Keep Images Small and Relevant

Large images slow down loading and distract from the code.

Ask yourself:

  • Does this image explain something better than text?
  • Is it necessary?

If yes, include it. If not, skip it.

Version Your Images

If your image changes over time:

  • Store it in a repo
  • Update filenames or folders

This avoids broken references in old Gists.

Conclusion

Adding Images to GitHub Gists isn’t hard once you understand the rules.

You can’t upload images directly, but you can embed them reliably using external URLs. GitHub repositories are the safest option, while issue uploads and external hosts work in specific cases.

Use images sparingly, explain them clearly, and your Gists will be far more useful than plain code alone.

git bisect

How Git Bisect Pinpoints the Problem: Debugging Like a Pro

Debugging can be frustrating, especially when a bug appears in a large codebase and you have no idea when it was introduced. Instead of manually sifting through commits, Git Bisect can help you track down the exact commit that introduced the bug efficiently. In this blog, we’ll explore how Git Bisect works, walk through a practical example, and provide useful tips to make debugging smoother.

What is Git Bisect?

It is a built-in Git tool that helps you perform a binary search through your commit history to find the exact commit that introduced a bug. Instead of checking each commit one by one, it narrows down the search range quickly by repeatedly dividing the history in half.

This makes Git Bisect extremely powerful, especially in large repositories where manually checking each commit would be time-consuming.

How Does It Work?

The process is simple:

  1. You start a bisect session.
  2. Mark a known good commit where the bug is absent.
  3. Mark a bad commit where the bug is present.
  4. Git automatically checks out a commit between those two.
  5. You test the code at that commit and mark it as either “good” or “bad.”
  6. Git continues this process, narrowing the search until it finds the exact problematic commit.

This approach significantly reduces the number of commits you need to check manually.

Step-by-Step Guide to Using It

Imagine you’re working on a project and notice a feature is broken, but you’re not sure when the bug was introduced.

1. Start the Git Bisect Session

Bash
$ git bisect start

This command initiates a Git Bisect session, putting Git in bisect mode.

2. Mark a “Good” and “Bad” Commit

You need to tell Git where the bug exists and where it doesn’t.

  • Identify a commit where the bug exists and mark it as bad:
Bash
$ git bisect bad
  • Find a commit where the bug didn’t exist and mark it as good:
Bash
$ git bisect good <commit-hash>

Git will now start checking commits between these two points.

3. Git Picks a Commit for You to Test

Git automatically checks out a commit in the middle of the range. Now, test your code to see if the bug is present.

  • If the bug is present, mark it as bad:
Bash
$ git bisect bad
  • If the bug is not present, mark it as good:
Bash
$ git bisect good

Each time you mark a commit as good or bad, Git Bisect picks another commit in between to test.

4. Repeat Until the Problematic Commit is Found

Git will continue selecting commits until it pinpoints the exact commit that introduced the bug. Once identified, Git will display the commit hash and message of the problematic commit.

Bash
// something like this

<commit-hash> is the first bad commit

5. End the Bisect Session

Once you’ve found the bad commit, exit bisect mode:

Bash
$ git bisect reset

This restores your repository to its original state before the bisect process.

Automating with a Script

If testing the bug manually is tedious, you can automate the process using a script. Here’s how:

$ git bisect start
$ git bisect bad
$ git bisect good <commit-hash>
$ git bisect run ./test-script.sh

Replace ./test-script.sh with your actual test script that returns 0 for good commits and 1 for bad commits. Git Bisect will run the script automatically and stop when the bad commit is found.

Best Practices

  • Choose accurate good/bad commits: Ensure your “good” commit is actually bug-free to avoid misleading results.
  • Use automation when possible: Automating the testing process speeds up bisecting significantly.
  • Document findings: Keep notes on what you find to avoid redoing the process later.
  • Reset after bisecting: Always run git bisect reset to return to the original branch.

Why Use Git Bisect?

  • Saves time: Finds the problematic commit quickly using a binary search.
  • Works with any Git project: No additional tools or setup required.
  • Automatable: Can integrate with test scripts to remove manual testing effort.
  • Accurate: Pinpoints the exact commit that introduced a bug, reducing debugging guesswork.

Conclusion

Git Bisect is an essential tool for any developer who wants to debug efficiently. By leveraging binary search, it drastically cuts down the time spent hunting for a bug in large codebases. Whether you’re using it manually or automating the process, it’s a powerful addition to your Git workflow.

Next time you’re stuck debugging a mysterious issue, give Git Bisect a try — it’ll make you look like a pro..!

Git Interview Questions and Answers

Mastering Git: The Most Common Git Interview Questions and Answers

Git is one of the most widely used version control systems, and knowing how to use it efficiently is essential for developers. If you’re preparing for a job interview, expect Git-related questions to come up, whether you’re a beginner or an experienced professional. In this detailed guide, we’ll explore the most commonly asked Git interview questions along with in-depth explanations and accurate answers.

Introduction to Git

What is Git?

Git is a distributed version control system (DVCS) that allows multiple developers to collaborate on a project by tracking changes in files. Unlike traditional version control systems, Git enables decentralized development, making it possible to work offline and merge changes seamlessly.

What is the Difference Between Git and GitHub?

Many beginners confuse Git with GitHub, but they serve different purposes:

  • Git: A version control system that runs locally on a developer’s computer.
  • GitHub: A cloud-based hosting platform that allows developers to store, share, and collaborate on Git repositories.

Git Basics

How to Check the Status of a Git Repository?

To check the status of files in your repository, use:

Bash
git status


// Note - Selected File format is Bash, not ideal but it's ok

This command provides information on modified, staged, and untracked files.

How to Initialize a New Git Repository?

To create a new Git repository in a project directory, use:

Bash
git init

This creates a .git directory where Git stores version control information.

How to Clone a Remote Repository?

To copy a remote repository to your local machine, use:

Bash
git clone <repository-url>

This command downloads the entire repository and history.

Branching and Merging

How to Create and Switch to a New Branch?

To create a new branch and switch to it, use:

Bash
git checkout -b <branch-name>

Alternatively, you can create and switch separately:

Bash
git branch <branch-name>
 git checkout <branch-name>

How to Merge Branches?

Switch to the branch you want to merge changes into, then run:

Bash
git commit -m "Descriptive commit message"

If there are conflicts, Git will prompt you to resolve them before completing the merge.

What is a Merge Conflict and How to Resolve It?

A merge conflict occurs when two branches modify the same part of a file differently. To resolve:

  1. Open the conflicted file.
  2. Manually edit the conflicting sections.
  3. Run:
Bash
git add <file> git commit -m "Resolved merge conflict"

Committing Changes

How to Add Files to the Staging Area?

To stage specific files:

Bash
git add <file-name>

To stage all changes:

Bash
git add .

How to Commit Changes?

To save staged changes:

Bash
git commit -m "Descriptive commit message"

How to Undo the Last Commit?

  • Keep changes but remove commit:
Bash
git reset --soft HEAD~1
  • Remove commit and changes:
Bash
git reset --hard HEAD~1

Remote Collaboration

How to Push Changes to a Remote Repository?

Bash
git push origin <branch-name>

How to Pull the Latest Changes from a Remote Repository?

Bash
git pull origin <branch-name>

How to Create a Pull Request?

  1. Push changes to GitHub:
Bash
git push origin <branch-name>
  1. Go to GitHub, open the repository, and click “New Pull Request.”
  2. Select branches and submit the PR.

How to Delete a Branch?

  • Delete a local branch:
Bash
git branch -d <branch-name>
  • Delete a remote branch:
Bash
git push origin --delete <branch-name>

Advanced Git

Difference Between git merge and git rebase

  • git merge: Combines two branches and keeps the commit history.
  • git rebase: Moves commits from one branch on top of another, creating a linear history.

How to Stash Changes in Git?

To temporarily save changes without committing:

Bash
git stash

To reapply stashed changes:

Bash
git stash apply

To remove a stash:

Bash
git stash drop

How to Revert a Commit Without Deleting History?

Bash
git revert <commit-hash>

This creates a new commit that undoes the previous changes.

How to View Commit History?

Bash
git log

Bonus

What is .gitignore?

A .gitignore file specifies files and directories that should be ignored by Git. 

Bash
node_modules/
*.log
.env

What is git cherry-pick?

This command applies a specific commit from one branch to another:

Bash
git cherry-pick <commit-hash>

What is git bisect?

A tool to find a commit that introduced a bug:

Bash
git bisect start
 git bisect bad
 git bisect good <commit-hash>

How to Change the Last Commit Message?

Bash
git commit --amend -m "New commit message"

What is git reflog Used For?

Tracks all changes in HEAD, even undone ones:

Bash
git reflog

Conclusion

Mastering Git is essential for every developer. Whether you’re preparing for an interview or improving your workflow, understanding Git commands and best practices will make you a more efficient and reliable team member. The best way to solidify your Git knowledge is through hands-on practice, so try these commands in a real repository to gain confidence..!

By following this guide, you’ll be well-prepared to answer Git interview questions and showcase your version control expertise.

After Reinstalling Git

Troubleshooting Git Issues After Reinstalling Git on Windows: Ultimate Guide Step-by-Step

If you’ve been working on a project and decided to uninstall and later reinstall Git on your Windows machine(There are many reasons; mostly, we do it due to corrupted installations, upgrade issues, configuration errors, switching installation methods, or problems with path/environment variables), you might encounter some unexpected issues when trying to push or pull from your repository. These problems can include Git detecting many modified or new files, or even Git configurations being reset. Here, I will walk you through the steps to troubleshoot and resolve these problems, ensuring that your Git setup works smoothly again.

Why Problems Arise After Reinstalling Git

Uninstalling Git does not affect your existing project repositories since Git stores repository information inside each project’s .git folder. However, after reinstalling, certain configurations and settings might be different from what you had before. Here are some common reasons for issues:

  1. Line Ending Differences: Git’s line-ending conversion settings may have changed, causing Git to detect file modifications.
  2. Missing or Reset Configuration: Global Git configurations, such as username, email, or credential helper settings, might be missing or reset.
  3. Ignored Files: Files that were previously ignored may now appear as untracked if .gitignore was altered or its behavior changed.
  4. Stale Credentials: Git might require you to re-enter your authentication details if you are using HTTPS or SSH credentials.

Let’s dive into how to resolve each of these.

Step 1: Verify Git Installation

After reinstalling Git, you should first verify whether it is installed correctly.

Run the following command in your terminal:

Bash
git --version

This should display the current version of Git. If it returns a version number, then Git is properly installed.

Step 2: Check Your Global Git Configurations

You may need to reconfigure Git’s global settings, like your username and email. These are required when you commit to any Git repository. Check your current global Git configurations:

Bash
git config --global --list

If you don’t see your user.name or user.email, you can set them like this:

Bash
git config --global user.name "Your userName"
git config --global user.email "[email protected]"

These settings are essential for Git to know who is making the commits.

Step 3: Line Ending Issues (CRLF vs. LF)

One of the most common issues after reinstalling Git is a change in how line endings are handled. Windows uses CRLF (Carriage Return and Line Feed) for new lines, while Linux and macOS use LF (Line Feed). If your project collaborates across different operating systems, Git’s line-ending conversion setting (core.autocrlf) may cause many files to appear modified after reinstalling Git.

Check Your Line Ending Settings:

To check your current line-ending conversion setting, run:

Bash
git config --global core.autocrlf

This will return one of the following values:

  • true: Git converts LF to CRLF when checking out code on Windows.
  • false: Git does not change line endings.
  • input: Git converts CRLF to LF when committing.

Set the Appropriate Line Ending Setting:

If you’re working on Windows and want to ensure consistency, it’s usually best to set core.autocrlf to true:

Bash
git config --global core.autocrlf true

Or, if you’re working on a cross-platform project, you can set it to input to avoid modifying line endings on commits:

Bash
git config --global core.autocrlf input

Once you’ve set this, reset the changes detected in your working directory:

Bash
git reset --hard

This will reset any uncommitted changes, reverting your files to the state of the last commit.

Step 4: Handling Modified and New Files

After reinstalling Git, you might see many modified or new files when you run git status, even if you didn’t actually change these files. This often happens due to changes in .gitignore or configurations.

Check .gitignore:

Ensure your .gitignore file is correctly configured. Git might now be tracking files that should be ignored. Open the .gitignore file in the root of your project directory and check whether all unwanted files or directories (e.g., logs, build files) are listed.

Run Git Check-Ignore:

To see which files should be ignored, you can use:

Bash
git check-ignore *

This command will output the files that Git is ignoring. If something is missing from .gitignore, add it and then run:

Bash
git add .gitignore
git commit -m "Updated .gitignore"

Step 5: Recommit or Discard Local Changes

If the changes detected by Git are legitimate, you can either commit them or discard them if they aren’t necessary.

If You Want to Keep the Changes:

If you believe the changes are valid and need to be saved, you can stage and commit them:

Bash
git add .
git commit -m "Commit changes after reinstalling Git"
git push origin master (or any current feature branch)

This will save the changes and push them to the remote repository.

If You Want to Discard the Changes:

If the changes are unwanted or were caused by line-ending issues, you can discard them using:

Bash
git reset --hard

This will reset your local files to the last committed state, removing any uncommitted modifications.

Note – Even after resetting, Git is showing “untracked files” because git reset --hard only affects tracked files, not untracked files. Untracked files are new files that haven’t been staged or committed to the repository yet. These files remain even after a hard reset.

Why git reset --hard Leaves Untracked Files

The git reset --hard command only resets tracked files (files that are already part of the repository and have been committed). It doesn’t touch untracked files, which are new files Git hasn’t started tracking yet. If you want to make your repository completely clean (removing all untracked files as well), you’ll need to take an additional step.

Removing Untracked Files to Clean the Repository

To make the repository completely clean, you need to remove all untracked files. Here’s how you can do that:

Option 1: Use git clean

git clean is used to remove untracked files. Be very cautious when using this command, as it will delete files that are not part of the repository.

First, check what will be removed (dry run):

Bash
git clean -n

If you’re sure you want to remove those files, run:

Bash
git clean -f

This removes all untracked files. If you also want to remove untracked directories, run:

Bash
git clean -fd
Option 2: Discard Only Specific Untracked Files

If there are specific untracked files you want to remove, you can manually delete them, or you can use:

Bash
git rm --cached <file>

This will remove only the selected untracked file from the staging area.

Full Command to Clean the Repository

To fully clean your repository, including resetting all changes and removing untracked files, follow these commands:

Reset tracked files to the last commit:
Bash
git reset --hard
Clean untracked files:
Bash
git clean -fd

Now, when you run git status, it should say that there’s nothing to commit, and no untracked files should be listed. Your repository will be in a clean state, just like when you cloned it or after a fresh commit.

Step 6: Reconfigure Credentials (If Necessary)

If you used HTTPS or SSH for Git authentication, you might need to re-enter your credentials after reinstalling Git. To avoid entering your username and password every time you push or pull, you can configure Git’s credential helper.

For HTTPS Authentication:

Bash
git config --global credential.helper wincred

This stores your credentials securely using the Windows Credential Manager.

For SSH Authentication:

Make sure your SSH key is correctly added. Run:

Bash
ssh-add -l

If no SSH keys are listed, you’ll need to re-add them using:

Bash
ssh-add ~/.ssh/id_rsa

The command ssh-add ~/.ssh/id_rsa is used to add a private SSH key to the SSH authentication agent (ssh-agent). Here’s a breakdown:

  • ssh-add: A command that adds private SSH keys to ssh-agent, which manages your private keys and stores them securely in memory.
  • ~/.ssh/id_rsa: This is the path to your private SSH key (in this case, the default file id_rsa stored in the ~/.ssh directory). The ~ represents the home directory of the current user.

By running this command, you’re telling ssh-agent to hold the private key in memory, allowing you to authenticate with SSH servers without needing to enter your passphrase for each connection.

Note – If your SSH key was reset, you may need to regenerate it and add it to your Git hosting service (GitHub, Bitbucket, etc.).

Conclusion

Reinstalling Git on your Windows machine can sometimes lead to unexpected behavior in your repositories, such as detecting modified files, resetting configurations, or needing to reconfigure credentials. By following the steps outlined above, you can troubleshoot and resolve these issues to get Git working smoothly again.

Remember to verify your Git installation, check your global configuration, review line-ending settings, and ensure that ignored files are still ignored. In most cases, resetting line-ending settings and recommitting or discarding changes will solve the issue.

By taking these steps, you can confidently continue working with Git after reinstalling it on your machine, without losing any data or productivity.

Happy committing..!

git

Git Revert Commit — Undo Last Commit

Git, the distributed version control system, is a powerful tool that allows developers to manage and track changes in their projects efficiently. Despite its robustness, developers sometimes find themselves needing to undo a commit, either due to a mistake, a change in requirements, or other reasons. Git provides several ways to revert changes, and one of the common methods is using the git revert command. In this blog post, we will explore how to use git revert to undo the last commit and understand its implications.

Let’s say we are working on your code in Git and something didn’t go as planned. So now we need to revert our last commit. How do we do it? Let’s find out!

There are two possible ways to undo your Git last commit

  1. revert Command — The revert command will create a commit that reverts the changes of the commit being targeted. means here git will create a new commit that contains reverted changes so that we will maintain commit history in the shared repository.
git revert <commit name to revert>

Example :

— -> commit 1 — → commit2 — → commit c1

git revert c1

— -> commit 1 — → commit2 — → commit3 — → commit reverting c1

2. reset Command — the reset command to undo your last commit. So be careful. it will change the commit history, it will move the HEAD of the working branch indicating commit and discard anything after.

we use the reset command with two options

a. The --soft option means that you will not lose the uncommitted changes you may have.

git reset --soft HEAD~1

b. If you want to reset to the last commit and also remove all unstaged changes, you can use the --hard option:

git reset --hard HEAD~1

This will undo the latest commit, but also any uncommitted changes.

When should we use reset or revert?

we should really only use reset if the commit being reset only exists locally. This command changes the commit history and it might overwrite the history that remote team members depend on.

revert instead creates a new commit that undoes the changes, so if the commit to revert has already been pushed to a shared repository, it is best to use revert as it doesn’t overwrite commit history.

Conclusion

Undoing the last commit using git revert is a safe and effective way to manage mistakes or changes in your Git project without altering the commit history. It promotes collaboration by preserving the commit history’s integrity and allows for seamless integration with subsequent changes. Understanding the implications of git revert empowers developers to make informed decisions when managing their version-controlled projects.

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