make formatting config work again

lua/plugins/formatter.lua

@@ -15,32 +15,67 @@ local function formatCurrent(retry)
 	end)
 end
 
+---@param bufnr integer
+---@param ... string
+---@return string
+local function first(bufnr, ...)
+	local conform = require("conform")
+	for i = 1, select("#", ...) do
+		local formatter = select(i, ...)
+		if conform.get_formatter_info(formatter, bufnr).available then
+			return formatter
+		end
+	end
+	return select(1, ...)
+end
+
+-- Make function that converts { { "prettierd", "prettier" }, "rustywind" } to
+--function (bufnr)
+-- return { first(bufnr, "prettierd", "prettier"), "rustywind" }
+-- end,
+local function expandFormatters(formatters)
+	return function(bufnr)
+		local result = {}
+		for i = 1, #formatters do
+			local formatter = formatters[i]
+			if type(formatter) == "table" then
+				result[i] = first(bufnr, unpack(formatter))
+			else
+				result[i] = formatter
+			end
+		end
+		return result
+	end
+end
+
 return {
 	"stevearc/conform.nvim",
 	opts = {
 		-- https://github.com/stevearc/conform.nvim?tab=readme-ov-file#setup
 		notify_on_error = true,
 		formatters = {
-			v_fmt = {
-				command = "v",
-        args = { "fmt" },
-			},
+			-- v_fmt = {
+			--         command = "v",
+			--         args = { "fmt" },
+			-- },
 		},
 		-- Note that all these need to be available at runtime, add them to flake.nix#runtimeDependencies
 		formatters_by_ft = {
 			lua = { "stylua" },
 			nix = { "nixfmt" },
-			vlang = { "v_fmt" },
-			typescript = { { "prettierd", "prettier" }, "rustywind" },
-			typescriptreact = { { "prettierd", "prettier" }, "rustywind" },
-			javascript = { { "prettierd", "prettier" }, "rustywind" },
-			javascriptreact = { { "prettierd", "prettier" }, "rustywind" },
+			-- vlang = { "v_fmt" },
+			typescript = expandFormatters({ { "prettierd", "prettier" }, "rustywind" }),
+			typescriptreact = expandFormatters({ { "prettierd", "prettier" }, "rustywind" }),
+			javascript = expandFormatters({ { "prettierd", "prettier" }, "rustywind" }),
+			javascriptreact = expandFormatters({ { "prettierd", "prettier" }, "rustywind" }),
 
 			-- TODO revisit these I'd like to use them but they are not in nixpkgs yet
 			-- https://nixos.org/guides/nix-pills/
 			-- markdown = { "mdslw", "mdsf"},
 			markdown = { "markdownlint-cli2" },
 			-- rust = { "rustfmt" },
+
+			["*"] = { lsp_format = "fallback" },
 		},
 	},
 	keys = {