Constant FS_SYNC_DOTIGNORE 

pub const FS_SYNC_DOTIGNORE: u16 = _; // 256u16

Honor .ignore in and above the root — ripgrep’s convention, which a project uses to hide things from tooling without telling git to stop tracking them. Separate from GITIGNORE because the two answer different questions, and .ignore brings none of git’s repository-wide sources with it. FS_INDEX and FS_GREP apply both together; a sync picks.