fix(leanls) : drop outdated config #4177

The old file has compatibility issues with the newest version of the `lean.nvim` plugin.

The `lean.nvim` plugin now handles language server attachment internally and no longer requires `nvim-lspconfig`. However, for users who still need `nvim-lspconfig` installed (e.g., for other languages), the existing file would shadow the newer one, leading to conflicts. This update directly copies the relevant file from `lean.nvim` to resolve this.

1 files changed, 0 insertions, 45 deletions

diff --git a/lsp/leanls.lua b/lsp/leanls.lua
deleted file mode 100644
index e5c03fdd..00000000
--- a/lsp/leanls.lua
+++ /dev/null
@@ -1,45 +0,0 @@
----@brief
---- https://github.com/leanprover/lean4
----
---- Lean installation instructions can be found
---- [here](https://leanprover-community.github.io/get_started.html#regular-install).
----
---- The Lean language server is included in any Lean installation and
---- does not require any additional packages.
----
---- Note: that if you're using [lean.nvim](https://github.com/Julian/lean.nvim),
---- that plugin fully handles the setup of the Lean language server,
---- and you shouldn't set up `leanls` both with it and `lspconfig`.
-
----@type vim.lsp.Config
-return {
-  cmd = function(dispatchers, config)
-    local local_cmd = { 'lake', 'serve', '--', config.root_dir }
-    return vim.lsp.rpc.start(local_cmd, dispatchers)
-  end,
-  filetypes = { 'lean' },
-  root_dir = function(bufnr, on_dir)
-    local fname = vim.api.nvim_buf_get_name(bufnr)
-    fname = vim.fs.normalize(fname)
-    -- check if inside lean stdlib
-    local stdlib_dir
-    do
-      local _, endpos = fname:find '/lean/library'
-      if endpos then
-        stdlib_dir = fname:sub(1, endpos)
-      end
-    end
-    if not stdlib_dir then
-      local _, endpos = fname:find '/lib/lean'
-      if endpos then
-        stdlib_dir = fname:sub(1, endpos)
-      end
-    end
-
-    on_dir(
-      vim.fs.root(fname, { 'lakefile.toml', 'lakefile.lean', 'lean-toolchain' })
-        or stdlib_dir
-        or vim.fs.dirname(vim.fs.find('.git', { path = fname, upward = true })[1])
-    )
-  end,
-}