Git force checkout
Scenario: You made some commits, did a git reset -hard to “undo” those changes (see above), and then realized: you want those changes back! This is the safest option, but often, you’ll want to “undo” the commits and the changes in one move-that’s what -hard does. The commits are gone, but the contents are still on disk. By default, git reset preserves the working directory. What’s happening: git reset rewinds your repository’s history all the way back to the specified SHA. Scenario: You’ve made some commits locally (not yet pushed), but everything is terrible, you want to undo the last three commits-like they never happened. Be sure you know what you’re throwing away here! (Maybe use git diff to confirm.) Reset “local” changes They were never committed, so Git can’t help us recover them later. Keep in mind: any changes you “undo” this way are really gone. You could provide a branch name or specific SHA you want to go back to or, by default, Git will assume you want to checkout HEAD, the last commit on the currently-checked-out branch. What’s happening: git checkout alters files in the working directory to a state previously known to Git. You want to undo everything in that file-just go back to the way it looked in the last commit. You haven’t committed those changes, though. Scenario: The cat walked across the keyboard and somehow saved the changes, then crashed the editor. With nothing currently staged, this just rewrites the previous commit message.
#GIT FORCE CHECKOUT UPDATE#
What’s happening: git commit -amend will update and replace the most recent commit with a new commit that combines any staged changes with the contents of the previous commit. Undo with: git commit -amend or git commit -amend -m "Fixes bug #42" Scenario: You just typo’d the last commit message, you did git commit -m "Fxies bug #42" but before git push you realized that really should say “Fixes bug #42”. This is Git’s safest, most basic “undo” scenario, because it doesn’t alter history-so you can now git push the new “inverse” commit to undo your mistaken commit. If the old commit is “matter”, the new commit is “anti-matter”-anything removed in the old commit will be added in the new commit and anything added in the old commit will be removed in the new commit. What’s happening: git revert will create a new commit that’s the opposite (or inverse) of the given SHA. Scenario: You just ran git push, sending your changes to GitHub, now you realize there’s a problem with one of those commits. In this post, I’m going to take a look at some common scenarios where you might want to “undo” a change you’ve made and the best way to do it using Git. When you make a new commit, Git stores a snapshot of your repository at that specific moment in time later, you can use Git to go back to an earlier version of your project. In Git, “undo” can mean many slightly different things. Check the git status to see the status of your changes.One of the most useful features of any version control system is the ability to “undo” your mistakes. First, make a new change to README.md, and run git add to stage the changed file (i.e. If a changed file has been staged via git add, then you need to use git reset to pull the most recently committed version of the file and undo the changes that you’ve made.įollow the steps below to practice undoing changes that occur after git add but before git commit. Remember that once you add a set of changes to version control using git add, the changed file has been staged. You can open the file in a text editor to confirm! Unstage Changes (After git add, Before git commit) Thus, you have discarded the most recent changes.
![git force checkout git force checkout](https://pbs.twimg.com/media/DqjXh2NX0AAhl7G.jpg)
The contents of your README.md file has been reverted to the last saved or committed version. Nothing to commit, working directory clean Your branch is up-to-date with 'origin/main'.
![git force checkout git force checkout](https://pbs.twimg.com/media/Dqt6puIUUAgB_NX.jpg)
See the example below (you do not need to type the comment after #): Be sure that you have cd to the directory for the repository. Or, you can use bash to add some text to the file using the echo command, as shown below. You can do this by opening the file in a text editor such as Atom and making/saving changes there. Or you can undo all changes (including all changes that have not been committed!) with:įollow the steps below to practice undoing changes that occur before git add.įirst, modify the README.md file in a repository. If you have changed a file but have not yet run git add, you can undo changes by running git checkout.
![git force checkout git force checkout](https://user-images.githubusercontent.com/22043590/69807530-79352180-1220-11ea-97ca-1bc58f9734a1.png)
Undo changes after they’ve been committed to the local repository (but before you have run git push to send your files to ).
![git force checkout git force checkout](https://i.stack.imgur.com/9a3XO.jpg)
Undo changes after they’ve been staged with git add (but before you run git commit).you have not yet run git add to add or stage them). Undo changes before they’ve been staged (i.e.After completing this page, you will be able to: