add lsp to neovim flake

flake.nix

@@ -176,6 +176,7 @@
             ./modules/neovim/plugins/statusline.nix
             ./modules/neovim/plugins/bufferline.nix
             ./modules/neovim/plugins/telescope.nix
+            ./modules/neovim/plugins/lsp.nix
           ];
         };
 

modules/neovim/lua/settings.lua

@@ -2,63 +2,15 @@
 -- Settings
 -- ===========================================================================
 
--- Remember last position when reopening file
-vim.api.nvim_exec(
-    [[
-  au BufReadPost * if line("'\"") > 0 && line("'\"") <= line("$") | exe "normal! g`\"" | endif
-]]   ,
-    false
-)
-
--- Better backup, swap and undo storage
-vim.o.backup = true --- Easier to recover and more secure
-vim.bo.swapfile = false --- Instead of swaps, create backups
-vim.bo.undofile = true --- Keeps undos after quit
-
--- Create backup directories if they don't exist
--- Should be fixed in 0.6 by https://github.com/neovim/neovim/pull/15433
-vim.o.backupdir = vim.fn.stdpath("cache") .. "/backup"
-vim.api.nvim_exec(
-    [[
-    if !isdirectory(&backupdir)
-        call mkdir(&backupdir, "p")
-    endif
-]]   ,
-    false
-)
-
--- LaTeX options
-vim.api.nvim_exec(
-    [[
-    au FileType tex inoremap ;bf \textbf{}<Esc>i
-    au BufWritePost *.tex silent! execute "!pdflatex -output-directory=%:p:h % >/dev/null 2>&1" | redraw!
-]]   ,
-    false
-)
-
--- Highlight when yanking
-vim.api.nvim_exec(
-    [[
-    au TextYankPost * silent! lua vim.highlight.on_yank { timeout = 250 }
-]]   ,
-    false
-)
-
 vim.filetype.add({
     pattern = {
         [".*%.tfvars"] = "terraform",
     },
 })
+
 vim.api.nvim_create_autocmd("FileType", {
     pattern = "*.eml",
     callback = function()
         vim.o.wrapmargin = 79 -- Wrap text automatically
     end,
 })
-
--- Netrw
-vim.g.netrw_liststyle = 3 -- Change style to 'tree' view
-vim.g.netrw_banner = 0 -- Remove useless banner
-vim.g.netrw_winsize = 15 -- Explore window takes % of page
-vim.g.netrw_browse_split = 4 -- Open in previous window
-vim.g.netrw_altv = 1 -- Always split left

modules/neovim/plugins/gitsigns.nix

@@ -1,6 +1,4 @@
-{ pkgs, dsl, ... }:
-# with dsl; 
-{
+{ pkgs, ... }: {
   plugins = [ pkgs.vimPlugins.gitsigns-nvim ];
   setup.gitsigns = { };
   lua = builtins.readFile ./gitsigns.lua;

modules/neovim/plugins/lsp.nix

@@ -0,0 +1,97 @@
+{ pkgs, dsl, ... }: {
+
+  plugins = [
+    pkgs.vimPlugins.nvim-lspconfig
+    pkgs.vimPlugins.lsp-colors-nvim
+    pkgs.vimPlugins.null-ls-nvim
+  ];
+
+  use.lspconfig.sumneko_lua.setup = dsl.callWith {
+    settings = { Lua = { diagnostics = { globals = [ "vim" "hs" ]; }; }; };
+    capabilities = dsl.rawLua "require('cmp_nvim_lsp').default_capabilities()";
+    cmd = [ "${pkgs.sumneko-lua-language-server}/bin/lua-language-server" ];
+  };
+
+  use.lspconfig.nil_ls.setup = dsl.callWith {
+    cmd = [ "${pkgs.nil}/bin/nil" ];
+    capabilities = dsl.rawLua "require('cmp_nvim_lsp').default_capabilities()";
+  };
+
+  use.lspconfig.pyright.setup = dsl.callWith {
+    cmd = [ "${pkgs.pyright}/bin/pyright-langserver" "--stdio" ];
+  };
+
+  use.lspconfig.terraformls.setup =
+    dsl.callWith { cmd = [ "${pkgs.terraform-ls}/bin/terraform-lsp" ]; };
+
+  vim.api.nvim_create_augroup = dsl.callWith [ "LspFormatting" { } ];
+
+  # setup."null-ls" = {
+  #   sources = [
+  #     (dsl.rawLua
+  #       "require('null-ls').builtins.formatting.black.with({ command = ${pkgs.black}/bin/black })")
+  #     (dsl.rawLua
+  #       "require('null-ls').builtins.formatting.flake8.with({ command = ${pkgs.python310Packages.flake8}/bin/flake8 })")
+  #     (dsl.rawLua
+  #       "require('null-ls').builtins.formatting.fish_indent.with({ command = ${pkgs.fish}/bin/fish_indent })")
+  #     (dsl.rawLua
+  #       "require('null-ls').builtins.formatting.nixfmt.with({ command = ${pkgs.nixfmt}/bin/nixfmt })")
+  #     (dsl.rawLua
+  #       "require('null-ls').builtins.formatting.rustfmt.with({ command = ${pkgs.rustfmt}/bin/rustfmt })")
+  #     (dsl.rawLua
+  #       "require('null-ls').builtins.diagnostics.shellcheck.with({ command = ${pkgs.shellcheck}/bin/shellcheck })")
+  #     (dsl.rawLua ''
+  #       require('null-ls').builtins.formatting.shfmt.with(
+  #           command = {${pkgs.shfmt}/bin/shfmt },
+  #           extra_args = { '-i', '4', '-ci' },
+  #       )'')
+  #     (dsl.rawLua
+  #       "require('null-ls').builtins.formatting.terraform_fmt.with({ command = ${pkgs.terraform}/bin/terraform })")
+  #   ];
+  # };
+
+  lua = ''
+    vim.keymap.set("n", "gd", vim.lsp.buf.definition)
+    vim.keymap.set("n", "gT", vim.lsp.buf.type_definition)
+    vim.keymap.set("n", "gi", vim.lsp.buf.implementation)
+    vim.keymap.set("n", "gh", vim.lsp.buf.hover)
+    -- vim.keymap.set("n", "gr", telescope.lsp_references)
+    vim.keymap.set("n", "<Leader>R", vim.lsp.buf.rename)
+    vim.keymap.set("n", "]e", vim.diagnostic.goto_next)
+    vim.keymap.set("n", "[e", vim.diagnostic.goto_prev)
+    vim.keymap.set("n", "<Leader>de", vim.diagnostic.open_float)
+    vim.keymap.set("n", "<Leader>E", vim.lsp.buf.code_action)
+
+
+    require("null-ls").setup({
+        sources = {
+            require('null-ls').builtins.formatting.stylua.with({ command = "${pkgs.stylua}/bin/stylua" }),
+            require('null-ls').builtins.formatting.black.with({ command = "${pkgs.black}/bin/black" }),
+            require('null-ls').builtins.diagnostics.flake8.with({ command = "${pkgs.python310Packages.flake8}/bin/flake8" }),
+            require('null-ls').builtins.formatting.fish_indent.with({ command = "${pkgs.fish}/bin/fish_indent" }),
+            require('null-ls').builtins.formatting.nixfmt.with({ command = "${pkgs.nixfmt}/bin/nixfmt" }),
+            require('null-ls').builtins.formatting.rustfmt.with({ command = "${pkgs.rustfmt}/bin/rustfmt" }),
+            require('null-ls').builtins.diagnostics.shellcheck.with({ command = "${pkgs.shellcheck}/bin/shellcheck" }),
+            require('null-ls').builtins.formatting.shfmt.with({
+                command = "${pkgs.shfmt}/bin/shfmt",
+                extra_args = { '-i', '4', '-ci' },
+            }),
+            require('null-ls').builtins.formatting.terraform_fmt.with({ command = "${pkgs.terraform}/bin/terraform" }),
+        },
+
+        on_attach = function(client, bufnr)
+              if client.supports_method("textDocument/formatting") then
+                  vim.api.nvim_clear_autocmds({ group = augroup, buffer = bufnr })
+                  vim.api.nvim_create_autocmd("BufWritePre", {
+                      group = augroup,
+                      buffer = bufnr,
+                      callback = function()
+                          vim.lsp.buf.format({ bufnr = bufnr })
+                      end,
+                  })
+              end
+        end
+    })
+  '';
+
+}

modules/neovim/plugins/misc.nix

@@ -1,13 +1,13 @@
-{ pkgs, lib, ... }: {
+{ pkgs, dsl, lib, ... }: {
   plugins = [
-    pkgs.vimPlugins.vim-surround
-    pkgs.vimPlugins.vim-eunuch
-    pkgs.vimPlugins.vim-vinegar
-    pkgs.vimPlugins.vim-fugitive
-    pkgs.vimPlugins.vim-repeat
-    pkgs.vimPlugins.comment-nvim
-    pkgs.vimPlugins.impatient-nvim
+    pkgs.vimPlugins.vim-surround # Keybinds for surround characters
+    pkgs.vimPlugins.vim-eunuch # File manipulation commands
+    pkgs.vimPlugins.vim-fugitive # Git commands
+    pkgs.vimPlugins.vim-repeat # Better repeat using .
+    pkgs.vimPlugins.comment-nvim # Smart comment commands
+    pkgs.vimPlugins.impatient-nvim # Faster load times
   ];
+
   setup.Comment = { };
 
   vim.o.termguicolors = true; # Set to truecolor
@@ -33,6 +33,12 @@
   vim.o.mouse = "nv"; # Mouse interaction / scrolling
   vim.o.inccommand = "split"; # Live preview search and replace
 
+  # Better backup, swap and undo storage
+  vim.o.backup = true; # Easier to recover and more secure
+  vim.bo.swapfile = false; # Instead of swaps, create backups
+  vim.bo.undofile = true; # Keeps undos after quit
+  vim.o.backupdir = dsl.rawLua ''vim.fn.stdpath("cache") .. "/backup"'';
+
   # Required for nvim-cmp completion
   vim.opt.completeopt = [ "menu" "menuone" "noselect" ];
 
@@ -41,4 +47,16 @@
     ${builtins.readFile ../lua/keybinds.lua};
     ${builtins.readFile ../lua/settings.lua};
   '';
+
+  vimscript = ''
+    " Remember last position when reopening file
+    au BufReadPost * if line("'\"") > 0 && line("'\"") <= line("$") | exe "normal! g`\"" | endif
+
+    " LaTeX options
+    au FileType tex inoremap ;bf \textbf{}<Esc>i
+    au BufWritePost *.tex silent! execute "!pdflatex -output-directory=%:p:h % >/dev/null 2>&1" | redraw!
+
+    " Flash highlight when yanking
+    au TextYankPost * silent! lua vim.highlight.on_yank { timeout = 250 }
+  '';
 }

modules/neovim/plugins/telescope.nix

@@ -1,8 +1,4 @@
-{ pkgs, dsl, ... }:
-
-with dsl;
-
-{
+{ pkgs, dsl, ... }: {
 
   plugins = [
     pkgs.vimPlugins.telescope-nvim
@@ -16,7 +12,7 @@ with dsl;
     defaults = {
       mappings = {
         i = {
-          "['<esc>']" = rawLua "require('telescope.actions').close";
+          "['<esc>']" = dsl.rawLua "require('telescope.actions').close";
           "['<C-h>']" = "which_key";
         };
       };