Add config for vim-lsp

README.md

@@ -86,6 +86,23 @@ Merge this setting into your `coc-settings.json`, which can be opened by `:CocCo
 
 See also [the example config for testing](dev/vim-coc.nix).
 
+### Vim with [`vim-lsp`]
+
+[`vim-lsp`]: https://github.com/prabirshrestha/vim-lsp
+
+Add the following code to your `vimrc` to register the LSP server.
+Thanks @mitchmindtree
+
+```vim
+if executable('nil')
+  autocmd User lsp_setup call lsp#register_server({
+    \ 'name': 'nil',
+    \ 'cmd': {server_info->['nil']},
+    \ 'whitelist': ['nix'],
+    \ })
+endif
+```
+
 ### Emacs with [`eglot`]
 
 [`eglot`]: https://github.com/joaotavora/eglot

dev/vim-lsp.nix

@@ -0,0 +1,45 @@
+{ pkgs ? import <nixpkgs> { } }:
+pkgs.vim_configurable.customize {
+  name = "vim-lsp";
+
+  vimrcConfig = {
+    packages.myVimPackage.start = with pkgs.vimPlugins; [
+      vim-nix # File type and syntax highlighting.
+      vim-lsp
+    ];
+
+    # vim
+    customRC = ''
+      source ${./vimrc.vim}
+
+      au BufRead,BufNewFile *.nix setf nix
+
+      autocmd User lsp_setup call lsp#register_server({
+        \ 'name': 'nil',
+        \ 'cmd': {server_info->[$NIL_PATH]},
+        \ 'whitelist': ['nix'],
+        \ })
+      autocmd User lsp_buffer_enabled call s:on_lsp_buffer_enabled()
+
+      function! s:on_lsp_buffer_enabled()
+        setlocal omnifunc=lsp#complete
+        setlocal tagfunc=lsp#tagfunc
+
+        nmap <buffer> gd <Plug>(lsp-definition)
+        nmap <buffer> gr <Plug>(lsp-references)
+        nmap <buffer> gs <Plug>(lsp-document-symbol-search)
+        nmap <buffer> gS <Plug>(lsp-workspace-symbol-search)
+        nmap <buffer> gy <Plug>(lsp-type-definition)
+        nmap <buffer> <Space>r <Plug>(lsp-rename)
+        nmap <buffer> [g <Plug>(lsp-previous-diagnostic)
+        nmap <buffer> ]g <Plug>(lsp-next-diagnostic)
+        nmap <buffer> <Space><Space> <Plug>(lsp-hover)
+        nnoremap <buffer> <expr><C-f> lsp#scroll(+4)
+        nnoremap <buffer> <expr><C-d> lsp#scroll(-4)
+
+        let g:lsp_format_sync_timeout = 1000
+        autocmd BufWritePre *.nix call execute('LspDocumentFormatSync')
+      endfunction
+    '';
+  };
+}

flake.nix

@@ -71,8 +71,9 @@
               jq
               pre-commit
               nixpkgs-fmt
-              (import ./dev/neovim-lsp.nix { inherit pkgs; })
+              (import ./dev/nvim-lsp.nix { inherit pkgs; })
               (import ./dev/vim-coc.nix { inherit pkgs; })
+              (import ./dev/vim-lsp.nix { inherit pkgs; })
             ] ++ lib.optionals (lib.meta.availableOn stdenv.hostPlatform vscodium) [
               (import ./dev/vscodium.nix { inherit pkgs; })
             ];