fix: diagnostics component in nvim-0.5 (#476)

examples/evil_lualine.lua

@@ -137,7 +137,7 @@ ins_left { 'progress', color = { fg = colors.fg, gui = 'bold' } }
 
 ins_left {
   'diagnostics',
-  sources = { 'nvim_lsp' },
+  sources = { 'nvim_diagnostic' },
   symbols = { error = ' ', warn = ' ', info = ' ' },
   diagnostics_color = {
     color_error = { fg = colors.red },

lua/lualine/components/diagnostics/init.lua

@@ -58,7 +58,7 @@ function M:init(options)
     print 'no sources for diagnostics configured'
     return ''
   end
-  if vim.fn.has 'nvim-0.6' then
+  if vim.fn.has 'nvim-0.6' == 1 then
     for i, name in ipairs(self.options.sources) do
       if name == 'nvim_lsp' then
         self.options.sources[i] = 'nvim_diagnostic'

lua/tests/spec/lualine_spec.lua

@@ -32,10 +32,7 @@ describe('Lualine', function()
           end,
           icon = '',
         },
-        {
-          'diagnostics',
-          sources = { 'nvim_lsp', 'coc' },
-        },
+        'diagnostics',
       },
       lualine_c = { 'filename' },
       lualine_x = { 'encoding', 'fileformat', 'filetype' },