From 31481abe3e6aecc7a8aac17424cc7ef4aa328d2f Mon Sep 17 00:00:00 2001
From: Alexander Courtis <alex@courtis.org>
Date: Sat, 28 Mar 2026 11:09:06 +1100
Subject: [PATCH 1/4] perf(#3257): replace view.initial_width with a function

---
 lua/nvim-tree/view.lua | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/lua/nvim-tree/view.lua b/lua/nvim-tree/view.lua
index 6e36c8e50da..9b84feff2ef 100644
--- a/lua/nvim-tree/view.lua
+++ b/lua/nvim-tree/view.lua
@@ -116,7 +116,7 @@ local function create_buffer(bufnr)
   events._dispatch_tree_attached_post(M.get_bufnr())
 end
 
----@param size (fun():integer)|integer|string
+---@param size nvim_tree.config.view.width.spec
 ---@return integer
 local function get_size(size)
   if type(size) == "number" then
@@ -129,6 +129,16 @@ local function get_size(size)
   return math.floor(vim.o.columns * percent_as_decimal)
 end
 
+---Return the width as per config
+---@return integer
+local function initial_width()
+  if type(config.g.view.width) == "table" then
+    return get_size(config.g.view.width.min or DEFAULT_MIN_WIDTH)
+  else
+    return get_size(config.g.view.width --[[@as nvim_tree.config.view.width.spec]])
+  end
+end
+
 ---@param size (fun():integer)|integer|nil
 ---@return integer
 local function get_width(size)
@@ -317,7 +327,7 @@ local function grow()
     padding = padding + wininfo[1].textoff
   end
 
-  local final_width = M.View.initial_width
+  local final_width = initial_width()
   local max_width = get_width(M.View.max_width)
   if max_width == -1 then
     max_width = math.huge
@@ -606,7 +616,7 @@ function M.configure_width(width)
       M.configure_width(config.g.view.width)
     else
       -- otherwise - restore initial width
-      M.View.width = M.View.initial_width
+      M.View.width = initial_width()
     end
   else
     M.View.adaptive_size = false
@@ -624,8 +634,6 @@ function M.setup(opts)
   M.View.winopts.signcolumn = options.signcolumn
 
   M.configure_width(options.width)
-
-  M.View.initial_width = get_width()
 end
 
 return M

From ae58f0ef797ba0ff2dd903ef537abc3a1e9abd47 Mon Sep 17 00:00:00 2001
From: Alexander Courtis <alex@courtis.org>
Date: Sat, 28 Mar 2026 11:33:24 +1100
Subject: [PATCH 2/4] perf(#3257): remove winopts from view setup

---
 lua/nvim-tree/view.lua | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/lua/nvim-tree/view.lua b/lua/nvim-tree/view.lua
index 9b84feff2ef..04289dafa63 100644
--- a/lua/nvim-tree/view.lua
+++ b/lua/nvim-tree/view.lua
@@ -164,6 +164,12 @@ end
 local function set_window_options_and_buffer()
   pcall(vim.api.nvim_command, "buffer " .. M.get_bufnr())
 
+  M.View.winopts.cursorline = config.g.view.cursorline
+  M.View.winopts.cursorlineopt = config.g.view.cursorlineopt
+  M.View.winopts.number = config.g.view.number
+  M.View.winopts.relativenumber = config.g.view.relativenumber
+  M.View.winopts.signcolumn = config.g.view.signcolumn
+
   if vim.fn.has("nvim-0.10") == 1 then
     local eventignore = vim.api.nvim_get_option_value("eventignore", {})
     vim.api.nvim_set_option_value("eventignore", "all", {})
@@ -627,12 +633,6 @@ end
 ---@param opts nvim_tree.config
 function M.setup(opts)
   local options = opts.view or {}
-  M.View.winopts.cursorline = options.cursorline
-  M.View.winopts.cursorlineopt = options.cursorlineopt
-  M.View.winopts.number = options.number
-  M.View.winopts.relativenumber = options.relativenumber
-  M.View.winopts.signcolumn = options.signcolumn
-
   M.configure_width(options.width)
 end
 

From d361be831ce6e9de9a36d08e3b4b1be7f740a9f6 Mon Sep 17 00:00:00 2001
From: Alexander Courtis <alex@courtis.org>
Date: Sat, 28 Mar 2026 11:51:18 +1100
Subject: [PATCH 3/4] perf(#3257): remove view setup

---
 lua/nvim-tree.lua      |  1 -
 lua/nvim-tree/view.lua | 66 ++++++++++++++++++++++--------------------
 2 files changed, 35 insertions(+), 32 deletions(-)

diff --git a/lua/nvim-tree.lua b/lua/nvim-tree.lua
index f29005e5961..aa9b08a2c0b 100644
--- a/lua/nvim-tree.lua
+++ b/lua/nvim-tree.lua
@@ -289,7 +289,6 @@ function M.setup(config_user)
   end
 
   require("nvim-tree.appearance").setup()
-  require("nvim-tree.view").setup(config.g)
   require("nvim-tree.renderer.components").setup(config.g)
 
   setup_autocommands()
diff --git a/lua/nvim-tree/view.lua b/lua/nvim-tree/view.lua
index 04289dafa63..68be68a419e 100644
--- a/lua/nvim-tree/view.lua
+++ b/lua/nvim-tree/view.lua
@@ -139,6 +139,31 @@ local function initial_width()
   end
 end
 
+---Configure width-related config
+---@param width string|function|number|table|nil
+function M.configure_width(width)
+  log.line("dev", "configure_width")
+  if type(width) == "table" then
+    M.View.adaptive_size = true
+    M.View.width = width.min or DEFAULT_MIN_WIDTH
+    M.View.max_width = width.max or DEFAULT_MAX_WIDTH
+    local lines_excluded = width.lines_excluded or DEFAULT_LINES_EXCLUDED
+    M.View.root_excluded = vim.tbl_contains(lines_excluded, "root")
+    M.View.padding = width.padding or DEFAULT_PADDING
+  elseif width == nil then
+    if config.g.view.width ~= nil then
+      -- if we had input config - fallback to it
+      M.configure_width(config.g.view.width)
+    else
+      -- otherwise - restore initial width
+      M.View.width = initial_width()
+    end
+  else
+    M.View.adaptive_size = false
+    M.View.width = width
+  end
+end
+
 ---@param size (fun():integer)|integer|nil
 ---@return integer
 local function get_width(size)
@@ -198,7 +223,7 @@ local function open_win_config()
   if type(config.g.view.float.open_win_config) == "function" then
     return config.g.view.float.open_win_config()
   else
-    return config.g.view.float.open_win_config --[[ @as vim.api.keyset.win_config ]]
+    return config.g.view.float.open_win_config --[[@as vim.api.keyset.win_config]]
   end
 end
 
@@ -305,6 +330,10 @@ function M.open(options)
     return
   end
 
+  if not M.View.width then
+    M.configure_width(config.g.view.width)
+  end
+
   local profile = log.profile_start("view open")
 
   events._dispatch_on_tree_pre_open()
@@ -420,6 +449,11 @@ end
 ---@param opts OpenInWinOpts|nil
 function M.open_in_win(opts)
   opts = opts or { hijack_current_buf = true, resize = true }
+
+  if not M.View.width then
+    M.configure_width(config.g.view.width)
+  end
+
   events._dispatch_on_tree_pre_open()
   if opts.winid and vim.api.nvim_win_is_valid(opts.winid) then
     vim.api.nvim_set_current_win(opts.winid)
@@ -606,34 +640,4 @@ function M.is_width_determined()
   return type(M.View.width) ~= "function"
 end
 
----Configure width-related config
----@param width string|function|number|table|nil
-function M.configure_width(width)
-  if type(width) == "table" then
-    M.View.adaptive_size = true
-    M.View.width = width.min or DEFAULT_MIN_WIDTH
-    M.View.max_width = width.max or DEFAULT_MAX_WIDTH
-    local lines_excluded = width.lines_excluded or DEFAULT_LINES_EXCLUDED
-    M.View.root_excluded = vim.tbl_contains(lines_excluded, "root")
-    M.View.padding = width.padding or DEFAULT_PADDING
-  elseif width == nil then
-    if config.g.view.width ~= nil then
-      -- if we had input config - fallback to it
-      M.configure_width(config.g.view.width)
-    else
-      -- otherwise - restore initial width
-      M.View.width = initial_width()
-    end
-  else
-    M.View.adaptive_size = false
-    M.View.width = width
-  end
-end
-
----@param opts nvim_tree.config
-function M.setup(opts)
-  local options = opts.view or {}
-  M.configure_width(options.width)
-end
-
 return M

From 39e446aa4d01073978b9f6cfbee334fa1a2bbdd5 Mon Sep 17 00:00:00 2001
From: Alexander Courtis <alex@courtis.org>
Date: Sat, 28 Mar 2026 12:29:22 +1100
Subject: [PATCH 4/4] perf(#3257): remove view setup

---
 lua/nvim-tree/view.lua | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lua/nvim-tree/view.lua b/lua/nvim-tree/view.lua
index 68be68a419e..f0fc8a21faa 100644
--- a/lua/nvim-tree/view.lua
+++ b/lua/nvim-tree/view.lua
@@ -142,7 +142,6 @@ end
 ---Configure width-related config
 ---@param width string|function|number|table|nil
 function M.configure_width(width)
-  log.line("dev", "configure_width")
   if type(width) == "table" then
     M.View.adaptive_size = true
     M.View.width = width.min or DEFAULT_MIN_WIDTH