Currently there isn’t an option to ignore a file through the GitKraken GUI.
If you check their post on twitter this is planned to be implemented soon and it will be in their release notes once this is completed.
UPDATE (26.01.2017.):
Version 2.0.0 brings the .gitignore option to the list of functionalities. You can now select a file or folder in the file staging area, and add to the .gitignore file on the fly. Right-click and select Ignore. From there, you can:
- Add that specific file to .gitignore
- Add all files with that file extension to .gitignore
- Add all files in the same folder as the selected file to
.gitignore - (If selecting a folder) add that folder to the .gitignore