GitHub for Windows: How to commit only a part of the file?

Question

I am new in GitHub for Windows. I learn how to commit a single change. But i don't understand how can i commit only a part of file. On GitHub for Mac you can just select the line.

How can i do it on GitHub for Windows?

Answer 1

Update: January 2015, 14th: Partial commits in GitHub for Windows:

The newest release of GitHub for Windows supports selecting lines or blocks of changes when creating a commit. Simply click the desired lines in the gutter, create the commit, and leave the other changes for you to continue working on.

The GitHub post adds what I mentioned in my original answer below:

For people familiar with the command line, this change is similar to interactive staging using git add -i or git add -p.

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(Original answer: Aug. 2013)

From GitHub for Windows, you can open the console, and type:

git add -p -- path/to/your/File

You will then be able to stage exactly what you want from that file.

git add --patch:

Interactively choose hunks of patch between the index and the work tree and add them to the index.
This gives the user a chance to review the difference before adding modified contents to the index.