Pick Specific Changes To Stash

If you run git stash, all of the changes to tracked files on the working tree will be put into a commit-like entity in the stash list.

If you want to be a bit choosier about what gets saved during a stash, you can include the --patch flag.

With --patch, you can interactively select hunks from the diff between HEAD and the working tree to be stashed.

$ git stash --patch

Once in the interactive mode initiated by --patch, you'll be presented with a change of changes and some options. You hit y for "yes, include this" and n for "no, don't include that". And then there are some more advanced options which you can read about in the Interactive Mode section of git-add's man page.

See man git-stash for more details.