git modify temporary code

During the development process, we often encounter the need to debug or test a specific function, which requires us to modify the code to meet our needs. But at this time we don’t want to affect other people’s work or cause some unintended consequences. At this time, we need to use git to modify the temporary code so as to achieve the effect of not destroying the original code and being able to process it independently.

Git, as one of the most popular version control tools currently, has many advanced functions in code modification. We can use it to create a temporary branch, make code modifications under this branch, and finally merge it back to the main branch. Below we will introduce the specific operations of modifying temporary code on Git.

1. Create a new branch

In order not to affect the main branch, we can create a new branch on Git to modify the code under this branch.

1. Switch to the main branch

Before doing any operation, we need to confirm that we are currently on the main branch.

$ git checkout master

2. Create a new branch

To create a new branch, you can use the command: git branch [new branch name], for example, we need to create a branch called The new branch of "dev":

$ git branch dev

After the creation is successful, we can switch to the new branch to make modifications.

$ git checkout dev

2. Modify the code on the new branch

Under the new branch, we can happily modify the code we need to modify. With some simple code modifications, you can directly use the editor to make modifications. If you need to add or delete files, we can use git commands to operate.

1. Modify files

We can use regular editors (vim, emacs, sublime, etc.) to modify files.

$ vim somefile.txt

2. New files

It is easy to add files on the new branch. Use git commands to add files to the current branch.

$ git add newfile.txt

3. Delete files

Similarly, deleting files can also be achieved through git commands.

$ git rm filetodelete.txt

It should be noted that adding and deleting files will only take effect under the current branch and will not affect the main branch.

3. Submit modifications

After we complete the modifications under the branch, we need to submit the modifications to the branch's code base.

1. Add modifications

Use the git add command to add modifications.

$ git add somefile.txt
$ git add newfile.txt
$ git add filetodelete.txt

2. Submit changes

Then we need to submit the code.

$ git commit -m "Some meaningful message"

4. Merge the modifications back to the main branch

After we have completed the modifications, we need to merge the modifications back to the main branch.

1. Switch back to the main branch

Before doing any operation, we need to confirm that we are currently on the main branch.

$ git checkout master

2. Merge branches

Now we need to merge the dev branch into the main branch.

$ git merge dev

3. Resolving conflicts

During the process of merging branches, code conflicts are likely to occur. This is when we need to resolve these conflicts. You can use an editor or the graphical tools that come with Git to solve this problem.

5. Summary

Git is a very powerful version control tool that can help us better manage code modifications. When modifying temporary code, we can modify and retain the original code by creating branches and merging branches. At the same time, Git can also help us solve problems such as code conflicts, making our work easier and more efficient.

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