Git Undo Branch Creation

git branch -a list all branches (remote and local) git clone path-to-repo create a new local git repo copied from a remote one. Creating a new branch and switching to it $ git checkout -b (Yes, the naming of this command is kind of inane. This post assumes that you have a considerable knowledge of the following: Source control general concepts. then revert to that commit: git revert -m 1 With ‘-m 1’ we tell git to revert to the first parent of the mergecommit on the master branch. $ heroku create --ssh-git. git commit; Takes all of the changes written in the index, creates a new commit object pointing to it and sets the branch to point to that new commit. Use git log to check how many commits you want to roll back. Sometimes, you commit changes to the master branch and realize you never should have. Learn how to create a git repository from scratch. Git has a load of ways to undo stuff and each of them has pros and cons. Pervasive Undo/Redo Document Changes (Creation, Update and Deletion inside a Document) Store Changes (Document/Branch Creation, Update and Deletion) Selective Undo (each change can be cancelled individually) Persistent Undo Stacks (tree structured/branching undo) Mutiple Undo Views on the same document; Undo Stack Union View; Object Store. Let's create a new branch with the name "issue1". The final step to do depends on the way you want your repo's history to flow and how complex the. To create a new branch, use the git branch name format: $ git branch test *The above command creates a new branch named "test" that points toward your most recent commit. When you edit a file and you want to undo it to the point of your last commit. It is very easy: $ git stash branch [stash-id] The command above creates a new branch named new-branch-name, checks it out and applies the changes from specified stash to it. local master tracks remote master. Now all of my folders have this small blue question mark next to them, and I can no longer successfully clone a repository. Oh shit, I accidentally committed to the wrong branch! # undo the last commit, but leave the changes available git reset HEAD~ --soft git stash # move to the correct branch git checkout name-of-the-correct-branch git stash pop git add. html # no changes added to commit (use "git add" and/or "git commit -a") We see that the hello. Prior to creating new branches, we want to see all the branches that exist. Come learn the power of Git. Reset will rewind your current HEAD branch to the specified revision. Create a new branch based on HEAD. c # Make more changes. I will create a new branch called feature/refactor. Learn how to create a git repository from scratch. Knowing how to fix mistakes definitely gave me the confidence to experiment, and hope you. Your local branch now has a "counterpart" on the remote server. Create a new connection to a. git checkout -b new-pages git branch. Week ending October 25, 2019. On undoing, fixing, or removing commits in git. Go to the bottom-right corner of Android Studio and click on the Git: master drop-down menu. Solving Conflicts GIT integration with Studio comes with a feature for solving conflicts that may occur when performing the Rebase or Push command, found in the Commit Changes window. git checkout master git branch new-branch-name Here master is the starting point for the new branch. This configuration will tell git to show the relationship between the two branches in git status and git branch -v. Checkout Branch. git branch issue-5 git checkout issue-5. These options are available in the drop-down on the Commit button. in order to actually work on it) you can do that with git branch -track or git checkout -track -b, which is similar but it also switches your working tree to the newly created local branch. Why should you set up tracking connections? Let's say your current local HEAD branch is named "dev". Create file A with X and Y Create file B with Z Sure you can manipulate the tree of changes with the git rebase -i command ( reference ), but there is a more straightforward way of rewriting a. Modify the hello. If we execute git revert HEAD, Git will create a new commit with the inverse of the last commit. All these actions use the Branch Creation dialog: Enter the name of the local branch you want to create. How to undo a public commit with git revert. One shortcut to the above commands is: git checkout -b[ branch_name] This command will create a new branch and checkout the new branch at the same time. Git Flow and Subversion. In the dialog that opens, select the source branch [2] for the new local branch (the code in the new branch will be based on the source branch), provide a branch name [3. At some point you may decide that stash is not enough for your needs and you may want to create a new branch from it. ) You are working on a file and you add and commit your changes. Select Create new branch from…. Git Checkout New branch: Create a new branch. Commit your change (hint: use git commit -am "msg" to add and commit at once!) checkout the master branch Add yet another item to the beginning of the list. You should see the following:. $ git branch Create a new branch named issue1. Studio comes with the option to undo changes that have been made to versioned files, before you commit and push them to the remote repository. Create branch from commit $ git checkout -b branch_name commit_hash. rb with the contents below. git checkout the commit parent to both of the branches then create a temp branch from there cherry-pick all commits by hand replace the branch in which I rebased by the manually-created branch In my current situation, this is gonna work because I can easily spot commits from both branches (one was. c # Make more changes. lab 15 Undoing Staged Changes (before committing) Goals. > git revert 8437fbaf > git commit These commands will undo the changes made in commit 8437fbaf and create a new commit on the branch. Basic Branching. From within your Git™ repository folder, right-click the white space of the Current Folder browser and select Source Control > Branches. git push origin BRANCH_NAME If you want to change the branch name: git push origin LOCAL_BRANCH_NAME:REMOTE_BRANCH_NAME Undo local changes to a file. Bitbucket is more than just Git code management. git commit git push. Remove remote branch git push origin branch-to-delete --delete. In addition to moving the current branch, you can also use 'Git reset' to alter the staged snapshot and/or the working directory by passing it one of the following. Create a branch; Change branches; View diffs between two files; Stage and clean changes; Undo a commit; Publish to a remote branch; Push commits; View git commands in Git output; Learn more. In Git, to create a repository, create a directory for the project if it does not exist, and then run command "git init". To create a new branch, use the git branch name format: $ git branch test *The above command creates a new branch named "test" that points toward your most recent commit. 10 things I hate about Git 997 Comments Posted by steveko on February 24, 2012 Git is the source code version control system that is rapidly becoming the standard for open source projects. Going back our “master” branch We can now see that the git checkout did not touch our master branch. If you are new to Git and CodeCommit, this tutorial helps you learn some simple commands to get you started. Why should you set up tracking connections? Let's say your current local HEAD branch is named "dev". First, let's create a new branch and add a few more HTML pages. Who changed what and when in a file $ git blame Branches and tags List all existing branches $ git branch -av. You can also use the shortcut git checkout -b issue-5 to create and checkout the branch all at once. The easiest way to turn multiple commits in a feature branch into a single commit is to reset the feature branch changes in the master and commit everything again. However, when you tell a local branch to "track" a remote branch, you create a connection between these two branches. In Kolosek we commit all our changes to Git and make it sure to notify our team when they are merged with the rest of the application!. How do I create a new Git branch from an old commit? How to selectively merge or pick changes from another branch in Git?. Further in this git tutorial, let's understand merging with an example. 12:40 am - Fun with undoing conflict resolution with "git checkout -m file" We deal with conflicts in many situations while integrating changes from different sources: We may be merging two branches that independently worked on different theme that happened to touch overlapping parts of the code ("git merge");. -m 2 would specify to revert to the first parent on the develop branch where the merge came from initially. One shortcut to the above commands is: git checkout -b[ branch_name] This command will create a new branch and checkout the new branch at the same time. To switch to another branch, use the git checkout command. Git uses branching heavily to switch between multiple tasks. $ arc diff # This prompts you to update revision information. ) You are working on a file and you add and commit your changes. git config branch. The diff can either be against the staged or un-staged tree, as selected in the options. When you create a branch, all Git needs to do is create a new pointer, it doesn't change the repository in any other way. Press Ctrl+P, type git and then press Space. While working with several remotes in the same git repository, you will eventually git push --force into master (or another important branch that should never be messed with). To roll back the HEAD and undo those commits, the git reset hard command is the right command to use. We can read "git reset --soft HEAD^" as "Undo the last commit in the current branch and move HEAD back by one commit. Delete Remote Git Branch:. Branches and Tags. $ git branch --no-track feature2 origin/master $ git branch --no-track feature3 HEAD~4 $ git branch --no-track feature4 f21e886 Now, in these examples the --no-track option was specified. git commit; Takes all of the changes written in the index, creates a new commit object pointing to it and sets the branch to point to that new commit. If git revert is a "safe" way to undo changes, you can think of git reset as the dangerous method. txt # add it git add --all # commit git commit -m 'Accidentally including my social security number in my file' git status On branch master Your branch is ahead of 'origin/master' by 1 commit. Dangit, I accidentally committed to the wrong branch! # undo the last commit, but leave the changes available git reset HEAD~ --soft git stash # move to the correct branch git checkout name-of-the-correct-branch git stash pop git add. When you're in Team Explorer, you can go to Branches, right click on the branch you want your new branch to be based on, right-click, and select New Local Branch From…. txt Will remove a file named filename. txt file in the local folder, execute the add command for adding a file in demo1 branch: $ git add tst1. git commit git push. This article introduces the basic workflow of a Git project and how to accomplish the most common Git-related tasks via the Git perspective. First I fork it, and then clone the resulting repository, scribu/wp-cli:. However, of course, there a tons of situations where you really want to undo that last commit. txt from the current index, the "about to be committed" area, without changing anything else. Undoing the last few git operations affecting HEAD. git clone # Then, later on retrieve latest changes: git fetch origin # See what to do, maybe pull when suggested in status output: git status git pull # Create new branch for your work and switch to it: git checkout -b nameForBranch # Modify/add files, commit (potentially often): git add newFile git commit -m "Describe change. git directory, and the size is 76 KB. Task 1: Creating a new branch in your local repository. git branch use git checkout -b to create a branch and switch right into it. When you make a new commit, Git stores a snapshot of your project so that you can go back to an earlier version when you need to. Use other branches for development and merge them back to the master branch upon completion. Click the master branch from the bottom left. Already pushed changes and someone else pulled those changes? You should not use git reset to undo changes, you should use git revert as described in our Git rollback commit guide instead. You can create a branch and switch to it by using the -b flag to git checkout, like this: git checkout -b Z What you need to do now is to undo the changes that you have committed to your master branch. Add another item to the end of the list. In Git you have to think of branches more as pointers or named references than a heavy 'branch. Revert is flexible but it requires a branch history and commit identifiers to use. Dangit, I accidentally committed to the wrong branch! # undo the last commit, but leave the changes available git reset HEAD~ --soft git stash # move to the correct branch git checkout name-of-the-correct-branch git stash pop git add. git branch -a. You'll then learn the art of cherry-picking, taking only the commits you want, followed by Git blame. Setup Overview - Set up and start using VS Code. Using Git with Subversion. # Switching to branch 'new_feature' $ git checkout new_feature Switched to branch 'new_feature' # Creating and switching to branch 'staging' $ git checkout -b staging Switched to a new branch 'staging' git merge. This chapter will cover how to work with branches with git and GitHub, including using them to work on different features simultaneously and to undo previous changes. ) Listing your branches $ git branch. Say, we have a master and a feature branch. Let's imagine the following situation: 1. c # Make more changes. If I type git space branch then it will show me a list of the branches. If connected to a remote on GitHub, GitLab, Bitbucket, or Visual Studio Team Services, create pull requests by dragging and dropping one branch to another and selecting Start a pull request. git branch -d branch_name. Run 'git branch dev' to create dev branch. In the history window that appears, right-click the commit to undo and select Revert from the context menu. To undo a Git commit that was not pushed, you are given a few major options: Undo the commit but keep all changes staged Undo the commit and unstage the changes Undo the commit and lose all changes Method 1: Undo commit and keep all files staged In case you just want to undo the…. Extracted from Chapter 5 Creating, Adding, and Committing: Git Basics Committing Changes Committing is a relatively straight forward process that adds your changes to the history of your repository and assigns a commit name to it. You can create and checkout branches directly within VS code through the Command Palette. For example the following command will create a new commit based on the previous to last commit. So, how do you use it? The basic syntax is git filter-branch branch_name. Creating Branches. In development with Git, when you are following updates on a remote branch (e. Create a new branch. the master branch on origin, you will get a conflict between your local master branch and remote's master. remote branches are "origin/master", "origin/dev" etc. local master tracks remote master. This git command git reset --soft HEAD~1 will undo the last commit, move the mistakenly committed files back to the staging area. From the repository, click + in the global sidebar and select Create a branch under Get to work. Git - Undo Last Commit. What happens is that when you clone a remote repository to your local machine, git creates an alias for you. The one you are currently on will have a star next to it. 2 git rebase -i master. git remote add name path-to-repo. Now, we'll create our new branch with the git branch command. I recommend reading GitPro for more information about how Git works. This is one of the few areas in Git where you may lose some work if you do it wrong. Use git branch to list all branches. While you can also delete a previous commit from the history using git reset or git rebase -i, it is generally not a good idea because it causes the remote repository to become desynchronized with the local repositories of other members. git checkout -b newbranch. Delete branch. Setup Overview - Set up and start using VS Code. git branch new-branch; Switch to any existing branch and check it out into your current working directory. The git rebase command is powerful and can do a lot of cool things in your repository (all of which rewrite your history, so use it with care). If you checkout the master branch and then issue a hard reset to the new_idea branch (in the history view, right click on the new_idea branch and selected Reset->Hard ), the master branch will now point to. Be careful, because you can't always undo some of these undos. I've found it helps make using Git a much more enjoyable experience. git init is a one-time command you use during the initial setup of a new repo. Use other branches for development and merge them back to the master branch upon completion. It's simple - before you merge a feature branch back into your main branch (often master or develop), your feature branch should be squashed down to a single buildable commit, and then rebased from the up-to-date main branch. Click on the New Branch button. Make sure you name it descriptively so that others working on the project understand what you are working on. By using the web option provided by remote providers like github, bitbucket, gitlab. lab 15 Undoing Staged Changes (before committing) Goals. git branch issue-5 git checkout issue-5. By default, Git pulls down the main tracking branch (e. $ git branch Create a new branch named issue1. This configuration will tell git to show the relationship between the two branches in git status and git branch -v. Creating Branches. List all existing branches. 2 git rebase -i master. Copy # Switch to the master branch and make sure you are up to date. Git branch not needed anymore. you need to tell Git if you added a new file; removal and modification will be caught if you do git commit -a later. Copy # Switch to the master branch and make sure you are up to date. … If I type git space branch then it will show me … a list of the branches. txt # add it git add --all # commit git commit -m 'Accidentally including my social security number in my file' git status On branch master Your branch is ahead of 'origin/master' by 1 commit. Git commands aren't always intuitive. Create and checkout a new branch called experiment. The git way to do it, and the way SourceTree wants you to do it as well, is to switch to the target branch (double click on it in the sidebar), then hit Merge and select what you want to merge into the current branch. Barbados: The Government of Barbados reach. When creating a new branch, set up configuration to mark the start-point branch as "upstream" from the new branch. Further in this git tutorial, let's understand merging with an example. There are several ways to handle the issue, we use the safest here. In development with Git, when you are following updates on a remote branch (e. Modify the hello. Create a "Hello, World" program. There is an Undo Last Commit action which will let you undo your previous commit, keeping the changes in the working folder. Starting in the empty working directory, create an empty directory named “hello”, then create a file named hello. Features; Video tutorials; Links; Getting Started. This provides news about or relevant to public debt management in the Caribbean. Next, work on anything: fix bugs, add features, add temporary code, and so forth, committing often along the way. Create and checkout a nonce branch pointing at that commit. Git: is a powerful program that you must learn to use to help you mange your code. because you'd like to restructure it extensively - or even discard it altogether! In these cases, the "reset" command is your best friend: $ git reset --soft HEAD~1. $ git add. Since the git checkout, remote branch methods listed above are a subset of Git as a whole, best practices for working with git checkout remote branch are the same, including: Commit often. The following sections explain how to rename, change or remove Git branches using Git bash commands and some other IDEs: How to rename a Git branch. This includes both code snippets embedded in the card text and code that is included as a file attachment. git folder property again. create mode 100644 myfile. Create a branch; Change branches; View diffs between two files; Stage and clean changes; Undo a commit; Publish to a remote branch; Push commits; View git commands in Git output; Learn more. 0 running under CygWin. We look that git commits --amend flag to reword or update the most recent commit. To start with we'll create a new temporary local branch. Git provides a command 'Git Reset' which will help you to easily undo the local staged changes and move your HEAD to it's original snapshot (i. We looked at the git revert command to undo a specific commit, and we just looked at the git reset command to reset or erase changes, but remember be careful with that last one. Find out how to create branches to test new ideas without impacting the main project and merge those changes into the project if they work out. When you commit in Visual Studio you can push the commit and sync the branch with a remote repository. On undoing, fixing, or removing commits in git. Creating a pull request. create local repo; use git add/commit/branch to work locally; Remote data. Next, work on anything: fix bugs, add features, add temporary code, and so forth, committing often along the way. Undo the exact changes introduced by a git commit, undo part of a git commit, or; remove the changes from git history; Git Revert The most straightforward way is to use git revert. Yesterday I ran into a situation with git where I was working away on some code, finished what I was doing and committed the changes. If you want to work on a specific project that could require a branch of the trunk, create a local branch of the current branch by doing: $ git branch mywork and to actually use it do: $ git checkout mywork Which could be summarized by: $ git checkout -b mywork Then do some commit on it. \o/ But what if wanted to undo the undo? Easy. Switch from the current branch to the indicated branch: $ git checkout BranchName. ★ ★ ★ It's wise to publish the release branch after creating it to allow release commits by other developers. 01 Cancelling commits. Staging is when you use git add to stage your changes. git remote add name path-to-repo track a remote repo (usually "origin") from an existing repo. Common Git-based tasks include:. Create a branch; Change branches; View diffs between two files; Stage and clean changes; Undo a commit; Publish to a remote branch; Push commits; View git commands in Git output; Learn more. It is helpful you to find names of branches, which have been created on the remote repository by someone and you want to check out this on your local repository. At some point you may decide that stash is not enough for your needs and you may want to create a new branch from it. git branch -a. \o/ But what if wanted to undo the undo? Easy. create a new local git repo copied. If I type git space branch then it will show me a list of the branches. git revert [commit] Create new commit that undoes all of the changes made in [commit], then apply it to the current branch. If you don’t want to use git-flow anymore, there’s nothing to change or remove, you just stop using the git-flow commands. You'll then learn the art of cherry-picking, taking only the commits you want, followed by Git blame. Understand the difference between the working copy, staging area, and repository itself. $ git checkout demo1. Delete branch. Extracted from Chapter 5 Creating, Adding, and Committing: Git Basics Committing Changes Committing is a relatively straight forward process that adds your changes to the history of your repository and assigns a commit name to it. Installation; Portable. Git – Create New Branch From Existing Branch. From the repository, click + in the global sidebar and select Create a branch under Get to work. Git Presentation for Software Engineering 2 Course. The final step to do depends on the way you want your repo's history to flow and how complex the. You are now working on that branch. revert your botched changes in curses/ux_audio_oss. There is an Undo Last Commit action which will let you undo your previous commit, keeping the changes in the working folder. The first thing you have to do when working with multiple branches is to create a local branch in your Git repository. Create a new branch based on HEAD. The git checkout command switches between branches or restores working tree files. If you removed a line, this revert commit will add the line back. Create a new branch based on a remote branch. Keep having to look up how to fix it # From master, create new branch, which will include the accidental commits git branch feature/foobar # Move master HEAD back, which will remove the commits from the. Sometimes you get in a situation-and this is a no-judgement zone, we've all been there-where you merge branches and you messed up and need to undo the merge because, well, because your co-workers are kind of mad you broke the project. Week ending October 25, 2019. Learn to navigate the commit tree and review the log to find specific commits. If you need to pull it in, you can merge your master branch into your iss53 branch by running git merge master, or you can wait to integrate those changes until you decide to pull the iss53 branch back into master later. After creating tst1. Here, I have created a new branch named "EdurekaImages" and switched on to the new branch using the command git checkout. Again since this is deleting just merged branches it is a very safe operation. $ git commit -a # Commit them. Prior to creating new branches, we want to see all the branches that exist. If you created a separate branch that got messed up, all you need to do is switch back to the one you were on before: git checkout A (assuming A is the name of the branch you were on or maybe it's master). git branch --track / use --no-track to create a new branch based on a remote branch, but don't save a connection between both. You can certainly do that. Push the branch to remote: git. Yeah, you're trying to merge a branch into itself (which just won't do anything). In the Branches dialog box, you can view, switch, create, and merge branches. The git-checkout command can be used to update specific files or directories in your working tree with those from another branch, without merging in the whole branch. Version Control - Read more about integrated Git support. Click Finish to create a new branch. Starting in the empty working directory, create an empty directory named “hello”, then create a file named hello. rb with the contents below. A fork (on github) is a new project that is based on a previous project. Any chance SourceTree might be able to support a git-flow workflow for Git clones of Subversion repositories? Git-flow uses the `-no-ff` flag to ensure that a merge commit is always created to preserve the information about the historical existence of a feature branch, but this approach conflicts with the recommendation for git-svn to avoid such merge commits by. How do I undo git rm *. Click on the New Branch button. Navigating branches. git push is the inverse of git fetch. Note: As an alternative right-click the versioned project or folder and choose Git > Branch/Tag > Create Branch in the popup menu. Undo with: git branch feature, git reset --hard origin/master, and git checkout feature What's happening: You may be used to creating new branches with git checkout -b —it's a popular short-cut for creating a new branch and checking it out right away—but you don't want to switch branches just yet. To create a new branch in your repository, right click a shared project and navigate to Team => Switch to => New Branch… from the context menu. Branches are used to create another line of development. Add a argument to create a new branch with the name. Switch from the current branch to the indicated branch: $ git checkout BranchName. To have the Heroku CLI configure SSH transport, you can pass a --ssh-git flag to the heroku create, heroku git:remote and heroku git:clone commands. First I fork it, and then clone the resulting repository, scribu/wp-cli:. Have you changed FILE in a way that you never want to commit? Just check out the version in the current HEAD with: git checkout FILE Configuring git to push a particular local branch to a. Also, git-extras is a collection of git utilities that create aliases to commands needed to work with revision histories. git push origin :feat1. Following is the example output of bash prompt after adding these changes to ~/. For example git repository has corrupted files or usefulness files which is no more required in future. This git command git reset --soft HEAD~1 will undo the last commit, move the mistakenly committed files back to the staging area. In the dialog that opens, select the source branch [2] for the new local branch (the code in the new branch will be based on the source branch), provide a branch name [3. Creating a secondary local branch. Something I didn't realize until recently is that "git branch -D " actually prints out the sha of the branch it deletes. Checking status before creating a commit helps avoid trouble. Here, I have created a new branch named “EdurekaImages” and switched on to the new branch using the command git checkout. Instead of creating a merge commit, Git points Master to the latest commit on the feature branch, or "fast forwards. Note that this creates the new branch, but does not "check it out" (make it the current working branch). git reset $(hash of the branch creation) will, as you probably guessed by now, undo all the commits, merges, rebases etc. I figure it's time I make a note of it here for others (and myself) to reference in the future! This is how dirty my branches were this morning:. All content is licensed under the Creative Commons Attribution Non Commercial Share Alike 3. clone repo. Create a “Hello, World” program. This chapter will cover how to work with branches with git and GitHub, including using them to work on different features simultaneously and to undo previous changes. After creating tst1. git push origin BRANCH_NAME If you want to change the branch name: git push origin LOCAL_BRANCH_NAME:REMOTE_BRANCH_NAME Undo local changes to a file. Remove branch locally git checkout master. You can certainly do that. Create, Connect, and Publish using Visual Studio with Git -> By: Andy Lewis and Matthew Mitrik (MS) In the few days since we announced Visual Studio and Team Foundation Service support for Git, it's been exciting to see so much interest,. In this case, Git does a simple three-way merge, using the two snapshots pointed to by the branch tips and the common ancestor of the two. Let's go ahead and check our history again: And everything is back the way it was. Note that with these 2 commands we don't move to the new branch, as we are still in master and we would need to run git checkout new-branch-name. Unstaging a Staged File. rb with the contents below. To roll back the HEAD and undo those commits, the git reset hard command is the right command to use. Enter the name "dev" for the new branch and press Enter. Drop the -b flag to checkout an existing branch. git branch -d feat1. If you want to start using Git and GitLab together, make sure that you have created and/or signed into an account on GitLab. git checkout -b new-pages git branch. SSH and HTTP transport can be used interchangeably by the same user and by multiple users collaborating on the same app. md Unstaged changes after reset: M CONTRIBUTING. Branches are used to create another line of development. I will create a new branch called feature/refactor. When you make a new commit, Git stores a snapshot of your project so that you can go back to an earlier version when you need to. You clone a repository to do work on it as a team member. In this tutorial, we will cover how to undo or revert a code change. Use the branch command with a name to create a new branch with that name. Now all of my folders have this small blue question mark next to them, and I can no longer successfully clone a repository. To revert, you can: Go to the Git history. If not specified, the commit to which the HEAD reference points is used to create the new branch. com Free Programming Books Disclaimer This is an uno cial free book created for educational purposes and is. To distinguish it from the main stream of development, presumably on master, we'll call this a "feature branch". So, how do you use it? The basic syntax is git filter-branch branch_name. filter-branch is generally for operations you want to apply pervasively to a repository. bash_profile. If git revert is a “safe” way to undo changes, you can think of git reset as the dangerous method.