Find a file modification branch in git

In development, we often need to manage the code version through Git. Git provides many powerful functions to manage the code version, but sometimes we need to find out which branch a certain file has been modified on. How to deal with this? Woolen cloth?

Let’s introduce how to find a file modification branch through Git.

1. Retrieve files

It is very simple to use Git to retrieve files. You only need to use the following command in Git Bash.

$ git grep "file_name"

Where "file_name" is the file name you are looking for. After using this command, Git will search for files containing "file_name" in the current working directory and subdirectories, and output the file name containing the file name. The file path and file content.

This command is very convenient, but it can only find the file content, and cannot directly find which branch a certain file was modified on.

2. Find the file modification history

To find the modification history of a certain file, you can use Git's log command to find the file modification record. This process is also very simple.

Use the following command to find the modification record of a certain file:

$ git log "file_name"

This command will display all modification records of the file "file_name", including the person who modified the file, modification time, and branch name Wait for the information.

If you want to find out which branches a certain file has been modified on, you can use the following command:

$ git branch --contains "file_name"

This command will list all branch names that contain modification records of the file "file_name".

3. Analysis and judgment

Through the above command, we can find the record and branch name of modifying a certain file, but we cannot completely determine which branch has been modified. Because a branch in Git may contain multiple submission records, and one submission record may modify multiple files, analysis and judgment are required.

In Git, each submission record has a unique SHA-1 value, which can be used to uniquely determine a submission record. Therefore, we can first find the modification record of a certain file, and then determine the branch where the modification record is located through the SHA-1 value of the commit record.

Use the following command in Git Bash to find the modification record of a certain file:

$ git log --pretty=format:"%h %ad | %s%d [%an]" --graph --date=short file_name

This command will output all the submission records of the file "file_name", including the SHA-1 value of the submission record, Information such as time, description and branch name.

Next, we can use the following command to find the branch where a certain commit record is located:

$ git branch --contains commit_id

where "commit_id" is the SHA-1 value of the commit record to be found.

4. Summary

Through the above steps, we can find the modification record and modification branch of a certain file, which can help us better manage code versions and track code changes.

It should be noted that Git commands are very flexible, and different commands may need to be used in different situations to achieve the purpose. Therefore, when using Git commands, you need to choose the appropriate command according to the specific situation, and learn and understand it according to the Git documentation.

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