Add files to a local Mercurial repository
After a Mercurial repository for a project is initialized, you need to add the project data to it:
If you have specified Mercurial as the version control system for your project in the Settings dialog, CLion suggests to put each new file under Mercurial control during the file creation.
You can add all unversioned files to Mercurial control or select files to add.
To add all currently unversioned files to Mercurial control
Open the Commit tool window Alt+0
Navigate to the Unversioned Files node and choose Add to VCS from the context menu.
To add specific file(s) to a local Mercurial repository, do one of the following:
Switch to the Commit tool window Alt+0, expand the Unversioned Files node, and select the files to be added. From the context menu, choose Add to VCS.
Switch to the Project tool window and select the files to be added. From the context menu, choose Mercurial | Add to VCS.