feat: add css (and pre-processors) support (#937)

ftplugin/css.lua

@@ -1,3 +1,36 @@
+vim.cmd "let proj = FindRootDirectory()"
+local root_dir = vim.api.nvim_get_var "proj"
+
+-- use the global prettier if you didn't find the local one
+local prettier_instance = root_dir .. "/node_modules/.bin/prettier"
+if vim.fn.executable(prettier_instance) ~= 1 then
+  prettier_instance = O.lang.tsserver.formatter.exe
+end
+
+local ft = vim.bo.filetype
+O.formatters.filetype[ft]= {
+  function()
+    local args = { "--stdin-filepath", vim.fn.fnameescape(vim.api.nvim_buf_get_name(0)) }
+    -- TODO: O.lang.[ft].formatter.args
+    local extend_args = O.lang.css.formatter.args
+
+    for i = 1, #extend_args do
+      table.insert(args, extend_args[i])
+    end
+
+    return {
+      exe = prettier_instance,
+      args = args,
+      stdin = true
+    }
+  end,
+}
+
+require("formatter.config").set_defaults {
+  logging = false,
+  filetype = O.formatters.filetype,
+}
+
 if not require("lv-utils").check_lsp_client_active "cssls" then
   local capabilities = vim.lsp.protocol.make_client_capabilities()
   capabilities.textDocument.completion.completionItem.snippetSupport = true

lua/default-config.lua

@@ -107,6 +107,10 @@ O = {
     },
     css = {
       virtual_text = true,
+      formatter = {
+        exe = "prettier",
+        args = {},
+      },
     },
     dart = {
       sdk_path = "/usr/lib/dart/bin/snapshots/analysis_server.dart.snapshot",