feat(ui): Add config to always scroll output window to bottom

Author: guillaumeboehm

lua/opencode/config.lua

@@ -102,6 +102,7 @@ M.defaults = {
       tools = {
         show_output = true,
       },
+      always_scroll_to_bottom = false,
     },
     input = {
       text = {

lua/opencode/types.lua

@@ -114,6 +114,7 @@
 ---@class OpencodeUIOutputConfig
 ---@field tools { show_output: boolean }
 ---@field rendering OpencodeUIOutputRenderingConfig
+---@field always_scroll_to_bottom boolean
 
 ---@class OpencodeContextConfig
 ---@field enabled boolean

lua/opencode/ui/output_window.lua

@@ -31,6 +31,11 @@ end
 ---@param win? integer Window ID, defaults to state.windows.output_win
 ---@return boolean true if at bottom, false otherwise
 function M.is_at_bottom(win)
+  -- If always_scroll_to_bottom is enabled, always return true
+  if config.ui.output.always_scroll_to_bottom then
+    return true
+  end
+
   win = win or (state.windows and state.windows.output_win)
 
   if not win or not vim.api.nvim_win_is_valid(win) then