How to delete logs in Git

With the continuous development of software development, version control is an essential skill. As the most popular version control tool currently, Git is also one of the tools that every developer must know. As you become more familiar with Git operations, you become more and more sensitive to logs in Git. During development, we need to use logs to track the history of code changes, but sometimes, we also need to delete some sensitive log records. This article will introduce how to delete log in Git.

What is Git log?

In Git, log refers to the command that records the history of each commit in the warehouse. Each submission will have a SHA-1 identifier, which can be used to query the corresponding submission history information. The log command can view the history of a specific commit range.

Why do you need to delete the log in Git?

Normally, it is important to keep commit history records because they can track the history of code changes. But sometimes, developers also need to remove certain sensitive information to protect the security of the code. For example, if we accidentally expose sensitive information such as passwords and keys when submitting code, we need to delete this information to prevent it from being used by malicious users. At this time, it is very necessary to delete the log records in Git.

How to delete the log in Git?

In Git, there are two ways to delete the log, namely:

1. Delete the recent commit

In some cases, developers only need to delete The most recent commit, such as when sensitive information is submitted. You can use the following command:

git reset --hard HEAD~1

This command will delete the most recent commit (ie HEAD) and roll back to the last committed version (ie HEAD~1).

If you want to resubmit the code and retain the previous commit history, you can use the following command:

git push origin HEAD --force

This command will force the code to be submitted and overwrite the history in the remote warehouse.

2. Delete multiple commits

If you want to delete multiple commits, use the command:

git rebase -i commit_id

commit_id in this command represents what you want The previous commit id of the commit version to delete. After executing this command, an interactive editor will open, change pick to edit, then save and exit.

Next, execute the following command:

git reset HEAD^

This command will roll back git to the previous commit and open the changes of this commit to the workspace.

After completing the repair, execute the following command:

git add .
git commit --amend
git rebase --continue

This command will submit the modifications to the corresponding commit. If conflicts are encountered, corresponding merge operations need to be performed.

Summary

Git is a very powerful version control tool, and the log command is also an essential skill for development. When we need to delete log records, we can use the method mentioned above. However, before performing these operations, we should think carefully to avoid unnecessary risks. Because deleting commit records will destroy the integrity and consistency of the code in Git, this may cause great trouble and loss.

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