new language servers and smart document highlighting

lua/lsp/bash-ls.lua

@@ -1,2 +1,2 @@
 -- npm i -g bash-language-server
-require'lspconfig'.bashls.setup{}
+require'lspconfig'.bashls.setup {on_attach = require'lsp'.common_on_attach}

lua/lsp/css-ls.lua

@@ -0,0 +1,2 @@
+-- npm install -g vscode-css-languageserver-bin
+require'lspconfig'.cssls.setup {on_attach = require'lsp'.common_on_attach}

lua/lsp/docker-ls.lua

@@ -0,0 +1,2 @@
+-- npm install -g dockerfile-language-server-nodejs
+require'lspconfig'.dockerls.setup {on_attach = require'lsp'.common_on_attach}

lua/lsp/graphql-ls.lua

@@ -0,0 +1,2 @@
+-- npm install -g graphql-language-service-cli
+require'lspconfig'.graphql.setup {on_attach = require'lsp'.common_on_attach}

lua/lsp/html-ls.lua

@@ -0,0 +1,8 @@
+-- npm install -g vscode-html-languageserver-bin
+local capabilities = vim.lsp.protocol.make_client_capabilities()
+capabilities.textDocument.completion.completionItem.snippetSupport = true
+
+require'lspconfig'.html.setup {
+    on_attach = require'lsp'.common_on_attach,
+    capabilities = capabilities
+}

lua/lsp/init.lua

@@ -30,8 +30,7 @@ vim.cmd('nnoremap <silent> K :Lspsaga hover_doc<CR>')
 vim.cmd('nnoremap <silent> <C-p> :Lspsaga diagnostic_jump_prev<CR>')
 vim.cmd('nnoremap <silent> <C-n> :Lspsaga diagnostic_jump_next<CR>')
 -- scroll down hover doc or scroll in definition preview
-vim.cmd(
-    'nnoremap <silent> <C-f> <cmd>lua require(\'lspsaga.action\').smart_scroll_with_saga(1)<CR>')
+vim.cmd('nnoremap <silent> <C-f> <cmd>lua require(\'lspsaga.action\').smart_scroll_with_saga(1)<CR>')
 -- scroll up hover doc
 vim.cmd(
     'nnoremap <silent> <C-b> <cmd>lua require(\'lspsaga.action\').smart_scroll_with_saga(-1)<CR>')
@@ -42,3 +41,28 @@ autocmd BufWritePre *.jsx lua vim.lsp.buf.formatting_sync(nil, 100)
 autocmd BufWritePre *.lua lua vim.lsp.buf.formatting_sync(nil, 100) ]]
 -- Java
 -- autocmd FileType java nnoremap ca <Cmd>lua require('jdtls').code_action()<CR>
+
+local lsp_config = {}
+
+function lsp_config.common_on_attach(client, bufnr)
+
+    -- Set autocommands conditional on server_capabilities
+    if client.resolved_capabilities.document_highlight then
+        vim.api.nvim_exec([[
+      hi LspReferenceRead cterm=bold ctermbg=red guibg=#464646
+      hi LspReferenceText cterm=bold ctermbg=red guibg=#464646
+      hi LspReferenceWrite cterm=bold ctermbg=red guibg=#464646
+      augroup lsp_document_highlight
+        autocmd! * <buffer>
+        autocmd CursorHold <buffer> lua vim.lsp.buf.document_highlight()
+        autocmd CursorMoved <buffer> lua vim.lsp.buf.clear_references()
+      augroup END
+    ]], false)
+    end
+end
+
+-- Use a loop to conveniently both setup defined servers
+-- and map buffer local keybindings when the language server attaches
+-- local servers = {"pyright", "tsserver"}
+-- for _, lsp in ipairs(servers) do nvim_lsp[lsp].setup {on_attach = on_attach} end
+return lsp_config

lua/lsp/java-ls.lua

@@ -13,6 +13,7 @@ else
     print("Unsupported system")
 end
 require('jdtls').start_or_attach({
+    on_attach = require'lsp'.common_on_attach,
     cmd = {JAVA_LS_EXECUTABLE},
     root_dir = require('jdtls.setup').find_root({'gradle.build', 'pom.xml'})
 })

lua/lsp/js-ts-ls.lua

@@ -7,4 +7,4 @@
 -- require'completion'.on_attach(client)
 -- require'illuminate'.on_attach(client)
 -- end
-require'lspconfig'.tsserver.setup {}
+require'lspconfig'.tsserver.setup {on_attach = require'lsp'.common_on_attach}

lua/lsp/json-ls.lua

@@ -1,5 +1,6 @@
 -- npm install -g vscode-json-languageserver
 require'lspconfig'.jsonls.setup {
+    on_attach = require'lsp'.common_on_attach,
     commands = {
       Format = {
         function()

lua/lsp/lua-ls.lua

@@ -20,6 +20,7 @@ end
 
 require'lspconfig'.sumneko_lua.setup {
     cmd = {sumneko_binary, "-E", sumneko_root_path .. "/main.lua"},
+    on_attach = require'lsp'.common_on_attach,
     settings = {
         Lua = {
             runtime = {

lua/lsp/python-ls.lua

@@ -1,2 +1,4 @@
 -- npm i -g pyright
-require'lspconfig'.pyright.setup{}
+require'lspconfig'.pyright.setup{
+    on_attach = require'lsp'.common_on_attach,
+}

lua/lsp/vim-ls.lua

@@ -0,0 +1,2 @@
+-- npm install -g vim-language-server
+require'lspconfig'.vimls.setup {on_attach = require'lsp'.common_on_attach}

lua/lsp/yaml-ls.lua

@@ -1,2 +1,4 @@
 -- npm install -g yaml-language-server
-require'lspconfig'.yamlls.setup{}
+require'lspconfig'.yamlls.setup{
+    -- on_attach = require'lsp'.common_on_attach,
+}