Merge global and cwd .gitignores

[andrhua]

I'm trying to prevent .git/ from polluting results when searching files inside $dayjob repo. I'll probably never want to search .git/* files, so I put .git/* in ~/.config/git/ignore. However repo has its own .gitignore without .git/* entry, and to my understanding, it takes precedence over global one. If I put .git/* in local .gitignore, fd picks it up immediately, but I don't want to put it for each project I happen to work on.

[tmccombs]

fd will merge ~/.config/fd/ignore with local ignore files. However, it doesn't do anything with ~/.config/git/ignore, because in order to do so, it would need to process git configuration (because that locaiton can be overridden with the core.excludesFile configuration).