Add css lsp (#36)

1 files changed, 60 insertions, 0 deletions

diff --git a/lua/nvim_lsp/cssls.lua b/lua/nvim_lsp/cssls.lua
new file mode 100644
index 00000000..c39f81fd
--- /dev/null
+++ b/lua/nvim_lsp/cssls.lua
@@ -0,0 +1,60 @@
+local skeleton = require 'nvim_lsp/skeleton'
+local util = require 'nvim_lsp/util'
+local lsp = vim.lsp
+
+local server_name = "cssls"
+local bin_name = "css-languageserver"
+
+local installer = util.npm_installer {
+  server_name = server_name;
+  packages = { "vscode-css-languageserver-bin" };
+  binaries = {bin_name};
+}
+
+local root_pattern = util.root_pattern("package.json")
+
+skeleton[server_name] = {
+  default_config = util.utf8_config {
+    cmd = {bin_name, "--stdio"};
+    filetypes = {"css", "scss", "less"};
+    root_dir = function(fname)
+      return root_pattern(fname) or vim.loop.os_homedir()
+    end;
+    log_level = lsp.protocol.MessageType.Warning;
+    settings = {
+      css = { validate = true },
+      scss = { validate = true },
+      less = { validate = true }
+     };
+  };
+  on_new_config = function(new_config)
+    local install_info = installer.info()
+    if install_info.is_installed then
+      if type(new_config.cmd) == 'table' then
+        -- Try to preserve any additional args from upstream changes.
+        new_config.cmd[1] = install_info.binaries[bin_name]
+      else
+        new_config.cmd = {install_info.binaries[bin_name]}
+      end
+    end
+  end;
+  docs = {
+    description = [[
+https://github.com/vscode-langservers/vscode-css-languageserver-bin
+
+`css-languageserver` can be installed via `:LspInstall cssls` or by yourself with `npm`:
+```sh
+npm install -g vscode-css-languageserver-bin
+```
+]];
+    default_config = {
+      root_dir = [[root_pattern("package.json")]];
+      on_init = [[function to handle changing offsetEncoding]];
+      capabilities = [[default capabilities, with offsetEncoding utf-8]];
+    };
+  };
+}
+
+skeleton[server_name].install = installer.install
+skeleton[server_name].install_info = installer.info
+-- vim:et ts=2 sw=2