feat(cmdline): recursive :find, ripgrep :grep, quiet grep menu

- path+=** so :find searches subdirectories recursively
- grepprg/grepformat drive :grep through ripgrep (--vimgrep
  --smart-case), with a comment on the -./-uu/-uuu opt-in flags
- the auto-completion menu skips grep-family commands while their
  search-pattern argument is being typed, and dismisses any menu
  left over from completing the command name

1 files changed, 7 insertions, 0 deletions

diff --git a/init.lua b/init.lua
index 982e6d4..42ce4ba 100644
--- a/init.lua
+++ b/init.lua
@@ -245,6 +245,13 @@ vim.opt.cursorline = true -- Highlight the line where the cursor is on
 vim.opt.scrolloff = 2 -- Keep this many visible screen lines above/below the cursor
 vim.opt.ignorecase = true -- Search ignores case by default
 vim.opt.smartcase = true -- Search is case-sensitive if searching for uppercase characters
+-- `:grep` via ripgrep, respecting `.gitignore` and skipping hidden/binary files by default.
+-- `:grep {args}` appends to `grepprg`, so opt into a wider search per-invocation:
+--   `-.`    also search hidden files (e.g. dotfiles), still skipping `.gitignore`d paths
+--   `-uu`   also search hidden and `.gitignore`d files (descends into `.git/` too)
+--   `-uuu`  `-uu` plus binary files
+vim.opt.grepprg = "rg --vimgrep --smart-case"
+vim.opt.grepformat = "%f:%l:%c:%m"
 vim.opt.conceallevel = 2 -- Hide text with the "conceal" syntax attribute
 vim.opt.showtabline = 2 -- Always show tabline
 vim.opt.winborder = "rounded" -- Rounded outline for floating windows