feat(lua): only enable selene linting if selene.toml exists

lua/astrocommunity/pack/lua/init.lua

@@ -1,3 +1,7 @@
+local function selene_configured(path)
+  return #vim.fs.find("selene.toml", { path = path, upward = true, type = "file" }) > 0
+end
+
 return {
   {
     "AstroNvim/astrolsp",
@@ -29,6 +33,15 @@ return {
     optional = true,
     opts = function(_, opts)
       opts.ensure_installed = require("astrocore").list_insert_unique(opts.ensure_installed, { "stylua", "selene" })
+      if not opts.handlers then opts.handlers = {} end
+      opts.handlers.selene = function(source_name, methods)
+        local null_ls = require "null-ls"
+        for _, method in ipairs(methods) do
+          null_ls.register(null_ls.builtins[method][source_name].with {
+            runtime_condition = function(params) return selene_configured(params.bufname) end,
+          })
+        end
+      end
     end,
   },
   {
@@ -55,6 +68,9 @@ return {
       linters_by_ft = {
         lua = { "selene" },
       },
+      linters = {
+        selene = { condition = function(ctx) return selene_configured(ctx.filename) end },
+      },
     },
   },
 }