From 4e1644d4d3cb6b2ae7bd7110add8424e5217882b Mon Sep 17 00:00:00 2001
From: Olivia Kinnear <git@superatomic.dev>
Date: Sat, 6 Dec 2025 16:20:02 -0600
Subject: [PATCH] feat(spell): opt-out of confirm when downloading spellfiles
 #36836

---
 runtime/doc/plugins.txt                   |  2 ++
 runtime/lua/nvim/spellfile.lua            | 31 ++++++++++++-------
 test/functional/plugin/spellfile_spec.lua | 37 ++++++++++++++++++++++-
 3 files changed, 58 insertions(+), 12 deletions(-)

diff --git a/runtime/doc/plugins.txt b/runtime/doc/plugins.txt
index c732f72cce..ebbb01e813 100644
--- a/runtime/doc/plugins.txt
+++ b/runtime/doc/plugins.txt
@@ -185,6 +185,8 @@ The plugin can be disabled by setting `g:loaded_spellfile_plugin = 1`.
                       otherwise https://ftp.nluug.nl/pub/vim/runtime/spell.
       • {timeout_ms}  (`integer`, default: 15000) Number of milliseconds after
                       which the |vim.net.request()| times out.
+      • {confirm}     (`boolean`, default: `true`) Whether to ask user to
+                      confirm download.
 
 
 config({opts})                                            *spellfile.config()*
diff --git a/runtime/lua/nvim/spellfile.lua b/runtime/lua/nvim/spellfile.lua
index 63882c37a3..45bfd5b872 100644
--- a/runtime/lua/nvim/spellfile.lua
+++ b/runtime/lua/nvim/spellfile.lua
@@ -25,11 +25,16 @@ local M = {}
 --- Number of milliseconds after which the [vim.net.request()] times out.
 --- (default: 15000)
 --- @field timeout_ms integer
+---
+--- Whether to ask user to confirm download.
+--- (default: `true`)
+--- @field confirm boolean
 
 --- @type nvim.spellfile.Opts
 local config = {
   url = vim.g.spellfile_URL or 'https://ftp.nluug.nl/pub/vim/runtime/spell',
   timeout_ms = 15000,
+  confirm = true,
 }
 
 --- Configure spellfile download options. For example:
@@ -270,18 +275,22 @@ function M.get(lang)
     return
   end
 
-  local prompt = ('No spell file found for %s (%s). Download? [y/N] '):format(
-    info.lang,
-    info.encoding
-  )
-  vim.ui.input({ prompt = prompt }, function(input)
-    -- properly clear the message window
-    vim.api.nvim_echo({ { ' ' } }, false, { kind = 'empty' })
-    if not input or input:lower() ~= 'y' then
-      return
-    end
+  if config.confirm then
+    local prompt = ('No spell file found for %s (%s). Download? [y/N] '):format(
+      info.lang,
+      info.encoding
+    )
+    vim.ui.input({ prompt = prompt }, function(input)
+      -- properly clear the message window
+      vim.api.nvim_echo({ { ' ' } }, false, { kind = 'empty' })
+      if not input or input:lower() ~= 'y' then
+        return
+      end
+      download(info)
+    end)
+  else
     download(info)
-  end)
+  end
 
   return info
 end
diff --git a/test/functional/plugin/spellfile_spec.lua b/test/functional/plugin/spellfile_spec.lua
index 11cff25437..262b63a0b7 100644
--- a/test/functional/plugin/spellfile_spec.lua
+++ b/test/functional/plugin/spellfile_spec.lua
@@ -2,6 +2,7 @@ local n = require('test.functional.testnvim')()
 local t = require('test.testutil')
 
 local eq = t.eq
+local neq = t.neq
 local exec_lua = n.exec_lua
 
 describe('nvim.spellfile', function()
@@ -40,7 +41,10 @@ describe('nvim.spellfile', function()
       vim.fn.input = function() prompted = true; return 'n' end
 
       local requests = 0
-      vim.net.request = function(...) requests = requests + 1 end
+      vim.net.request = function(_, _, cb)
+        requests = requests + 1
+        cb()
+      end
 
       s.get('en_gb')
 
@@ -148,4 +152,35 @@ describe('nvim.spellfile', function()
     eq(true, out.done)
     eq(false, out.did_reload)
   end)
+
+  it('no confirmation when using confirm = false', function()
+    local out = exec_lua(
+      [[
+      local rtp_dir = ...
+      local s = require('nvim.spellfile')
+
+      vim.fn.input = function(...)
+        error('prompt was triggered')
+        return 'n'
+      end
+
+      local requests = 0
+      vim.net.request = function(_, _, cb)
+        requests = requests + 1
+        cb()
+      end
+
+      s.config({ confirm = false })
+      s.get('en_gb')
+
+      -- Reset value
+      s.config({ confirm = true })
+
+      return { requests = requests }
+    ]],
+      rtp_dir
+    )
+
+    neq(0, out.requests)
+  end)
 end)