What to do if git accidentally overwrites a commit
In the process of using git, sometimes committed changes are accidentally overwritten. This may result in loss of important code or data. Here are some steps to recover from accidentally overwriting a commit:
1. Verify the overwritten commit
First, view the commit history using the git log
command and confirm the overridden commit.
2. Create a branch
Create a new branch to revert the overwritten commit. For example:
<code>git checkout -b recover-lost-commits</code>
3. Resubmit overwritten changes
After switching to a new branch, use git add
and git commit
Command to resubmit overwritten changes.
4. Merge the recovery branch
Merge the recovery branch back to the main branch. For example:
<code>git checkout master git merge recover-lost-commits</code>
5. Push merge
Push the merged changes to the remote warehouse. For example:
<code>git push origin master</code>
6. Delete the recovery branch (optional)
Once the overwritten commit has been reverted, it is safe to delete the recovery branch. For example:
<code>git branch -d recover-lost-commits</code>
Additional notes:
- If the changes were pushed before the commit was overwritten, you will need to force the push after reverting the commit.
- If the overwritten commit contains sensitive information, additional steps will need to be taken to protect this information.
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Git and GitHub are essential tools for modern developers. 1. Use Git for version control: create branches for parallel development, merge branches, and roll back errors. 2. Use GitHub for team collaboration: code review through PullRequest to resolve merge conflicts. 3. Practical tips and best practices: submit regularly, submit messages clearly, use .gitignore, and back up the code base regularly.

Git and GitHub are not the same thing: Git is a distributed version control system, and GitHub is an online platform based on Git. Git helps developers manage code versions and achieve collaboration through branching, merge and other functions; GitHub provides code hosting, review, problem management and social interaction functions, enhancing Git's collaboration capabilities.

After installing Git, in order to use more efficiently, the following settings are required: Set user information (name and mailbox) Select text editor Set external merge tool Generate SSH key settings Ignore file mode

Resolve: When Git download speed is slow, you can take the following steps: Check the network connection and try to switch the connection method. Optimize Git configuration: Increase the POST buffer size (git config --global http.postBuffer 524288000), and reduce the low-speed limit (git config --global http.lowSpeedLimit 1000). Use a Git proxy (such as git-proxy or git-lfs-proxy). Try using a different Git client (such as Sourcetree or Github Desktop). Check for fire protection

Causes of slow Git downloads include poor network connections, Git server problems, large files or large submissions, Git configuration issues, insufficient computer resources, and other factors such as malware. Workarounds include improving network connectivity, adjusting firewall settings, avoiding downloading unnecessary files or submissions, optimizing Git configuration, providing adequate computer resources, and scanning and removing malware.

How to update local Git code? Use git fetch to pull the latest changes from the remote repository. Merge remote changes to the local branch using git merge origin/<remote branch name>. Resolve conflicts arising from mergers. Use git commit -m "Merge branch <Remote branch name>" to submit merge changes and apply updates.

Steps to update git code: Check out code: git clone https://github.com/username/repo.git Get the latest changes: git fetch merge changes: git merge origin/master push changes (optional): git push origin master

You can delete a Git branch through the following steps: 1. Delete the local branch: Use the git branch -d <branch-name> command; 2. Delete the remote branch: Use the git push <remote-name> --delete <branch-name> command; 3. Protected branch: Use git config branch. <branch-name>.protected true to add the protection branch settings.


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