REFACTOR: Updated from older config

lua/mason-conform/auto_install.lua

@@ -1,42 +1,25 @@
-local registry = require("mason-registry")
-local mapping = require("mason-conform.mapping")
-
 local function auto_install()
     local config = require("mason-conform").config
-    local formatters_by_ft = require("conform").formatters_by_ft;
+    local mapping = require("mason-conform.mapping")
+    local install = require("mason-conform.install")
 
-    local formatters_to_install = {}
-    for _, formatters in pairs(formatters_by_ft) do
-        for _, formatter in pairs(formatters) do
-            -- Support case where the user has defined multiple formatters
-            -- for said filetype. E.g javascript = { { "prettierd", "prettier" } }
-            if type(formatter) == "table" then
-                for _, f in pairs(formatter) do
-                    formatters_to_install[f] = 1
-                end
-            else
-                formatters_to_install[formatter] = 1
+    local ignored = {}
+    for _, name in ipairs(config.ignore_install) do
+        ignored[name] = true
+    end
+
+    for _, name in ipairs(require("mason-conform.formatters").configured()) do
+        if not ignored[name] then
+            local package = mapping.conform_to_package[name]
+            if package ~= nil then
+                install.try_install(package)
             end
         end
     end
-
-    -- Filter out formatters that the user wants to ignore
-    for _, formatter_to_ignore in pairs(config.ignore_install) do
-        formatters_to_install[formatter_to_ignore] = nil
-    end
-
-    for conformFormatter, _ in pairs(formatters_to_install) do
-        local package = mapping.conform_to_package[conformFormatter]
-        if package ~= nil then
-            require("mason-conform.install").try_install(package)
-        end
-    end
 end
 
-if registry.refresh then
-    return function()
-        registry.refresh(vim.schedule_wrap(auto_install))
-    end
-else
-    return auto_install
+---Refresh the mason registry, then install every configured formatter that is
+---missing. Returns immediately; installation happens on the main loop.
+return function()
+    require("mason-registry").refresh(vim.schedule_wrap(auto_install))
 end