1 files changed, 75 insertions, 0 deletions
diff --git a/lua/conform/util.lua b/lua/conform/util.lua
new file mode 100644
index 0000000..8cbc013
--- /dev/null
+++ b/lua/conform/util.lua
@@ -0,0 +1,75 @@
+local M = {}
+
+---@param cmd string
+---@return fun(ctx: conform.Context): string
+M.from_node_modules = function(cmd)
+  return function(ctx)
+    local fs = require("conform.fs")
+    local found =
+      vim.fs.find("node_modules", { upward = true, type = "directory", path = ctx.dirname })
+    for _, dir in ipairs(found) do
+      local executable = fs.join(dir, ".bin", cmd)
+      if vim.fn.executable(executable) == 1 then
+        return executable
+      end
+    end
+    return cmd
+  end
+end
+
+---@param files string|string[]
+---@return fun(ctx: conform.Context): nil|string
+M.root_file = function(files)
+  return function(ctx)
+    local found = vim.fs.find(files, { upward = true, path = ctx.dirname })[1]
+    if found then
+      return vim.fs.dirname(found)
+    end
+  end
+end
+
+---@param bufnr? integer
+---@return fun() Function that restores the window positions
+M.save_win_positions = function(bufnr)
+  if bufnr == nil or bufnr == 0 then
+    bufnr = vim.api.nvim_get_current_buf()
+  end
+  local win_positions = {}
+  for _, winid in ipairs(vim.api.nvim_list_wins()) do
+    if vim.api.nvim_win_get_buf(winid) == bufnr then
+      vim.api.nvim_win_call(winid, function()
+        local view = vim.fn.winsaveview()
+        win_positions[winid] = view
+      end)
+    end
+  end
+
+  return function()
+    for winid, view in pairs(win_positions) do
+      vim.api.nvim_win_call(winid, function()
+        pcall(vim.fn.winrestview, view)
+      end)
+    end
+  end
+end
+
+---@generic T : any
+---@param tbl T[]
+---@param start_idx? number
+---@param end_idx? number
+---@return T[]
+M.tbl_slice = function(tbl, start_idx, end_idx)
+  local ret = {}
+  if not start_idx then
+    start_idx = 1
+  end
+  if not end_idx then
+    end_idx = #tbl
+  end
+  for i = start_idx, end_idx do
+    table.insert(ret, tbl[i])
+  end
+  return ret
+end
+
+return M