feat(lsp): check for eslint config and package.json before starting eslint

lua/cosmic/lsp/providers/null_ls.lua

@@ -2,14 +2,30 @@ local config = require('cosmic.config')
 local defaults = require('cosmic.lsp.providers.defaults')
 local null_ls = require('null-ls')
 
+local has_eslint_config = function(utils)
+  return utils.root_has_file('.eslintrc')
+    or utils.root_has_file('.eslintrc.json')
+    or utils.root_has_file('.eslintrc.js')
+    or utils.root_has_file('package.json')
+    or utils.root_has_file('.eslintrc.cjs')
+    or utils.root_has_file('.eslintrc.yaml')
+    or utils.root_has_file('.eslintrc.yml')
+end
+
 local config_opts = config.lsp.servers.null_ls or {}
 null_ls.config(vim.tbl_deep_extend('force', {
   -- you must define at least one source for the plugin to work
   sources = {
-    null_ls.builtins.code_actions.eslint_d,
+    null_ls.builtins.code_actions.eslint_d.with({
+      condition = has_eslint_config,
+    }),
+    null_ls.builtins.diagnostics.eslint_d.with({
+      condition = has_eslint_config,
+    }),
+    null_ls.builtins.formatting.eslint_d.with({
+      condition = has_eslint_config,
+    }),
     null_ls.builtins.code_actions.gitsigns,
-    null_ls.builtins.diagnostics.eslint_d,
-    null_ls.builtins.formatting.eslint_d,
     null_ls.builtins.formatting.prettierd,
     null_ls.builtins.formatting.stylua,
   },

lua/cosmic/theme/init.lua

@@ -59,4 +59,3 @@ highlight('NotifyTRACEIcon', nil, colors.trace)
 
 vim.cmd('hi FloatBorder guibg=None')
 vim.cmd('hi! link FloatermBorder FloatBorder')
-vim.cmd('hi link Floaterm NormalFloat')