Add lsp module

lua/hardline.lua

@@ -16,6 +16,8 @@ M.options = {
     {class = 'high', item = require('hardline.parts.git').get_item},
     {class = 'med', item = require('hardline.parts.filename').get_item},
     {class = 'med', item ='%='},
+    {class = 'warning', item = require('hardline.parts.lsp').get_warning},
+    {class = 'error', item = require('hardline.parts.lsp').get_error},
     {class = 'high', item = require('hardline.parts.filetype').get_item},
     {class = 'mode', item = require('hardline.parts.line').get_item},
   },

lua/hardline/parts/line.lua

@@ -14,7 +14,7 @@ local function get_line()
 end
 
 local function get_column()
-  local nb_columns = vim.fn.col('$')
+  local nb_columns = vim.fn.col('$') - 1
   local column = vim.fn.col('.')
   local max_dots = get_dots(nb_columns, 999)
   local dots = get_dots(column, 999)

lua/hardline/parts/lsp.lua

@@ -1,8 +1,19 @@
-local M = {}
-
-function M.get_item()
-  return table.concat({
-  })
+local function get_diagnostic(prefix, severity)
+  if vim.tbl_isempty(vim.lsp.buf_get_clients(0)) then return '' end
+  local count = vim.lsp.diagnostic.get_count(0, severity)
+  if count < 1 then return '' end
+  return table.concat({' ', string.format('%s:%d', prefix, count), ' '})
 end
 
-return M
+local function get_error()
+  return get_diagnostic('E', 'Error')
+end
+
+local function get_warning()
+  return get_diagnostic('W', 'Warning')
+end
+
+return {
+  get_error = get_error,
+  get_warning = get_warning,
+}