✨ Git Conflict Markers

- Adds autocmd to work with git conflicts

lua/config/autocmds.lua

@@ -7,6 +7,7 @@ end, { force = true })
 
 -- ------------------------------ Auto-Commands --------------------------------
 -- Autosave Colorscheme
+-- When the colorscheme changes, store the name in .colorscheme
 vim.api.nvim_create_autocmd("ColorScheme", {
   desc = "Store colorscheme name",
   callback = function()
@@ -17,3 +18,49 @@ vim.api.nvim_create_autocmd("ColorScheme", {
     )
   end,
 })
+
+-- GIT CONFLICT MARKERS
+-- if there are conflicts, jump to first conflict, highlight conflict markers,
+-- and disable diagnostics (simplified version of `git-conflict.nvim`)
+vim.api.nvim_create_autocmd({ "BufEnter", "FocusGained" }, {
+  callback = function(ctx)
+    local hlgroup = "DiagnosticVirtualTextInfo" -- CONFIG
+
+    if not vim.api.nvim_buf_is_valid(ctx.buf) then
+      return
+    end
+    vim.system(
+      { "git", "diff", "--check", "--", vim.api.nvim_buf_get_name(ctx.buf) },
+      {},
+      vim.schedule_wrap(function(out)
+        local noConflicts = out.code == 0
+        local noGitRepo =
+          vim.startswith(out.stdout, "warning: Not a git repository")
+        if noConflicts or noGitRepo then
+          return
+        end
+
+        local ns = vim.api.nvim_create_namespace("conflictMarkers")
+        local firstConflict
+        for conflictLnum in out.stdout:gmatch("(%d+): leftover conflict marker") do
+          local lnum = tonumber(conflictLnum)
+          vim.api.nvim_buf_add_highlight(ctx.buf, ns, hlgroup, lnum - 1, 0, -1)
+          if not firstConflict then
+            firstConflict = lnum
+          end
+        end
+        if not firstConflict then
+          return
+        end
+
+        vim.api.nvim_win_set_cursor(0, { firstConflict, 0 })
+        vim.diagnostic.enable(false, { bufnr = ctx.buf })
+        vim.notify_once(
+          "Conflict markers found.",
+          nil,
+          { title = "Git Conflicts" }
+        )
+      end)
+    )
+  end,
+})