renames, refactors, comment updates

lua/plugins/conform_formatter.lua

@@ -0,0 +1,86 @@
+local function formatCurrent(retry)
+	require("conform").format({ async = true, lsp_fallback = true }, function(err, edited)
+		if edited then
+			print("Formatted!")
+		elseif err then
+			-- Sometimes I am too fast and vim is saving from my InsertExit and this fails so
+			-- I give it one retry
+			if not retry and string.find(err, "concurrent modification") then
+				return formatCurrent(true)
+			end
+			print(err)
+		else
+			print("Nothing to format!")
+		end
+	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" },
+			-- },
+		},
+		-- Note that all these need to be available at runtime, add them to flake.nix#runtimeDependencies
+		formatters_by_ft = {
+			lua = { "stylua", lsp_format = "first" },
+			nix = { "nixfmt", lsp_format = "first" },
+			typescript = expandFormatters({ { "prettierd", "prettier" }, "rustywind", lsp_format = "first" }),
+			typescriptreact = expandFormatters({ { "prettierd", "prettier" }, "rustywind", lsp_format = "first" }),
+			javascript = expandFormatters({ { "prettierd", "prettier" }, "rustywind", lsp_format = "first" }),
+			javascriptreact = expandFormatters({ { "prettierd", "prettier" }, "rustywind", lsp_format = "first" }),
+
+			-- 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", lsp_format = "first" },
+			rust = { "rustfmt", lsp_format = "first" },
+		},
+	},
+	keys = {
+		{
+			"<leader>l<leader>",
+			formatCurrent,
+			mode = { "n", "v", "x" },
+			desc = "Format buffer",
+		},
+	},
+}