How to delete submissions submitted to git

Git is a powerful version control tool that is widely used in software development projects. When using Git, operations such as commit, merge, and delete are often involved. This article will focus on how to delete content submitted to Git.

In Git, commit is an important operation, which can save the current code base state to a code warehouse. After submission, the details of the submission can be viewed in the history of the code repository. However, when we find errors or need to modify during the submission process, we need to delete the submitted content.

Git provides several methods for deleting commits:

1. Use the Git reset command

Use the git reset command to undo a commit, so that The code base is returned to its pre-commit state. The syntax of this command is:

$ git reset [--soft | --mixed | --hard] 提交哈希值

Among them, the --soft option means to cancel the submission but not delete any files or modifications; the --mixed option means to cancel the submission and cancel the temporary storage, but not delete any files or modifications; The --hard option undoes the commit and removes all changes.

For example, if you want to delete the most recent commit and roll back the code base to the state before that commit, you can use the following command:

$ git reset HEAD~1 --hard

Among them, HEAD~1 means going back to the previous commit , the --hard option means to revert all changes in the working directory to the state of this commit.

2. Use the Git revert command

Use the git revert command to undo one or more commits and generate a new commit to represent this reversal. The syntax of this command is:

$ git revert [提交哈希值]

For example, if you want to undo the most recent commit and generate a new commit to represent this undo, you can use the following command:

$ git revert HEAD

This command will be in the current Generate a new commit on the branch to undo the previous commit.

3. Use the Git rebase command

Use the git rebase command to delete a commit and merge the changes into another commit. The syntax of this command is:

$ git rebase -i [提交哈希值]

For example, if you want to merge the first two commits into one commit, you can use the following command:

$ git rebase -i HEAD~2

This command will open the interactive editor and let You select the commits you want to delete. In the editor, replace the word "pick" with "delete" in front of each commit you want to delete, then save and close the editor. This will remove the selected commits and merge them into the next commit.

Summary:

The above are three methods of deleting submissions, each method has its own application scenarios. In practical applications, the most appropriate method to delete submissions can be selected according to the specific situation. It is important to exercise caution before deleting a commit to ensure that you do not delete any important files or modifications.

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