How to view the content of git commit

Go deep into the secret of Git Commit: Use git show to view basic changes. Use git log --patch to display modifications in "patch" form. git diff .. Compare the differences between two commits. git log -G "regular expression" filters commits via regular expressions. git log --pretty=format:"%H %s" View the commit log concisely.

How to get a glimpse of the secrets of Git Commit

Are you curious about what secrets are hidden in Git commit? It is not just a simple modification record, it contains the context of project evolution and is the key to understanding code evolution. Want to know how to view commit content efficiently? Don't worry, listen to me in detail. I will take you deep into the bottom of Git and unveil the mystery of commit.

Start with the most basic one, git show <commit_hash></commit_hash> , which may be the first command you come into contact with. It can directly display the change information of the specified commit, including modified files, code differences, etc. commit_hash is the string of characters that look like the Book of Heaven, the unique identifier of each commit. Remember, don't underestimate this command, it is the cornerstone of your exploration of commit content.

But git show is not enough, especially when commit involves a lot of file modifications, the output information will appear lengthy and messy. At this time, you need more refined tools. git log --patch , this command will display each commit modification in the form of a "patch", clearly displaying newly added, deleted and modified lines. With the -n parameter, you can control the number of commits displayed to avoid information overload. If you only want to see the modifications of a few specific files, add the -- <file></file> parameter, such as git log --patch -- <src></src> to only display the modification history of the src/main.cpp file.

Going further, if you want to compare code while viewing commit, git diff <commit_hash1>..<commit_hash2></commit_hash2></commit_hash1> will be your weapon. This command will compare the differences between the two commits, allowing you to intuitively see the evolution of the code. Use it to compare adjacent commits to clearly see the specific modifications of each commit. Remember, .. symbol indicates range, you can also use it to compare branches, labels, etc.

However, no matter how powerful the tool is, you need to know how to use it. For example, if you only care about specific types of file modifications, you can combine git log -G"正则表达式" to filter commit. This command will look for commits containing specific regular expressions, allowing you to quickly locate changes of interest. Using regular expressions flexibly, you will find that it can help you solve many difficult problems.

Finally, don't forget git log --pretty=format:"%H %s" , which is a concise way to view commit logs. It only displays the hash value and commit information of commit, suitable for quick browsing project history. Flexible use of various --pretty options, you can customize the output format to meet various needs.

After all, there is no only "best" way to view Git commit content, depending on your specific needs and scenarios. Only by mastering these commands and techniques can you easily find the information you want when facing the huge project history. This is not just about learning to use commands, but more importantly, understanding the underlying operating mechanism of Git, so that you can truly master the essence of Git. Only by practicing more, trying more, and exploring constantly can you become a true Git master.

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