python configs i think

nvim/after/ftplugin/python.lua

@@ -3,13 +3,13 @@ local has_pyright = nil
 -- These are files that are typically located in the root directory of a Python
 -- project
 local root_files = {
-  'pyproject.toml',
+  'pyrightconfig.json',
+  '.git',
   'setup.py',
   'setup.cfg',
   'requirements.txt',
   'Pipfile',
-  'pyrightconfig.json',
-  '.git',
+  'pyproject.toml',
 }
 
 local buf = vim.api.nvim_get_current_buf()
@@ -17,9 +17,11 @@ local buf = vim.api.nvim_get_current_buf()
 local root_dir = vim.fs.root(buf, root_files)
 local git_dir = vim.fs.root(buf, {'.git'})
 
+local pyright_cmd = {'pyright-langserver', '--stdio'}
+
 local pyright = vim.lsp.start({
   name = 'pyright',
-  cmd = {'pyright-langserver', '--stdio'},
+  cmd = pyright_cmd,
   filetypes = { 'python' },
   root_dir = root_dir,
   single_file_support = true,

nvim/after/ftplugin/rust.lua

@@ -1,2 +1,15 @@
--- yay
--- local rustup_home = os.getenv('RUSTUP_HOME') or util.path.join(user_home, '.rustup')
+local etc = require("etc")
+
+local buf = vim.api.nvim_get_current_buf()
+local rustup_dir = os.getenv('RUSTUP_HOME') or vim.env.HOME .. '.rustup'
+
+if etc.has_executable("rust-analyzer") then
+  local rust_analyzer = vim.lsp.start({
+    name = 'rust-analyzer',
+    cmd = { 'rust-analyzer' },
+    filetypes = { 'rust' },
+    single_file_support = true,
+    root_dir = vim.fs.root(buf, {'Cargo.toml', '.git'}),
+  })
+  vim.lsp.buf_attach_client(buf, rust_analyzer)
+end

nvim/after/plugin/signature_help.lua

@@ -1,5 +1,8 @@
-local signature = require("lsp_signature")
+local signature, _ = pcall(function()
+  return require("lsp_signature")
+end);
 
+if signature then
   signature.setup({
     -- set to true to enable debug logging
     debug = false,
@@ -41,11 +44,11 @@ signature.setup({
 
     -- adjust float windows x position.
     -- can be either a number or function
-  floating_window_off_x = -8,
+    floating_window_off_x = 0,
 
     -- adjust float windows y position. e.g -2 move window up 2 lines; 2 move down 2 lines
     -- can be either number or function, see examples
-  floating_window_off_y = 14,
+    floating_window_off_y = 0,
 
     -- close floating window after ms when laster parameter is entered
     close_timeout = 4000,
@@ -128,3 +131,4 @@ signature.setup({
     -- <M-d> and <M-u> are default keymaps to move cursor up and down
     keymaps = {}
   })
+end

nvim/after/plugin/telescope.lua

@@ -15,3 +15,5 @@ telescope.setup({
     }
   },
 })
+
+-- builtin.lsp_references

nvim/lua/etc/init.lua

@@ -1,6 +1,7 @@
 local M = {}
 
 local telescope = require("telescope.builtin")
+local path = require("etc.path")
 
 -- cache directory checks for great speed
 local work_tree_lookup_cache = {}
@@ -28,4 +29,8 @@ M.project_files = function()
   end
 end
 
+M.has_executable = function(exe_name)
+  return vim.fn.executable(exe_name) == 1
+end
+
 return M

nvim/lua/keys.lua

@@ -5,6 +5,8 @@ vim.keymap.set('n', '<F2>', telescope.diagnostics, {})
 vim.keymap.set('n', '<leader>o', telescope.buffers, {})
 vim.keymap.set('n', '<C-k>', vim.cmd.bnext, {})
 vim.keymap.set('n', '<C-j>', vim.cmd.bprev, {})
+-- vim.keymap.set('n', '<leader>r', vim.lsp.buf.references, {})
+vim.keymap.set('n', '<leader>r', telescope.lsp_references, {})
 
 -- vim.keymap.set("v", "J", ":m '>+1<CR>gv=gv")
 -- vim.keymap.set("v", "K", ":m '>-2<CR>gv=gv")

nvim/lua/plugins.lua

@@ -52,7 +52,7 @@ function load_plugins(use)
     "lewis6991/gitsigns.nvim"
   }
 
-  use { "ray-x/lsp_signature.nvim" }
+  -- use { "ray-x/lsp_signature.nvim" }
   use { "ervandew/supertab" }
 
   -- a file browser