rewrite migration helper

lib/tools/xdg-migrate

@@ -1,16 +0,0 @@
-#!/usr/bin/env bash
-
-xdgUpdate() {
-	local	old_config_dir=~/.atom				\
-		old_config_file=$old_config_dir/atom.cfg	\
-
-		programname=AtOM				\
-		xdg_config_dir=~/.config/$programname		\
-		xdg_config_file=$xdg_config_dir/atom.cfg	\
-
-	[[ -d "$xdg_config_dir" ]] || mkdir "$xdg_config_dir"
-	if [[ ! -f $xdg_config_file ]]
-	then
-		mv $old_config_file $xdg_config_file
-	fi
-}

lib/xdg/migrate

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+# https://specifications.freedesktop.org/basedir-spec/latest/
+
+xdgUpdateData() {
+	local -r programname=AtOM					\
+		my_data_home="${XDG_DATA_HOME:-$HOME/.local/share}"
+	local -r new_db_path="$my_data_home/atom.db"
+
+	[[ -d "$my_data_home" ]] || mkdir -p "$my_data_home"
+	mv "$database" "$new_db_path"
+	echo "$new_dp_path"
+}
+
+xdgUpdateRuntime() {
+	local -r programname=AtOM					\
+		my_runtime_dir="${XDG_RUNTIME_DIR:-/tmp}"		\
+
+	echo "$my_runtime_dir/$programname"
+}
+
+xdgMigrate() {
+	local -r programname=AtOM					\
+		my_config_home="${XDG_CONFIG_HOME:-$HOME/.config}"	\
+
+	cffile="$HOME/.atom/atom.cfg"
+	getConfig
+	database=$(xdgUpdateData)
+	tempdir=$(xdgUpdateRuntime)
+	cffile="$my_config_home/atom.cfg"
+	[[ -d "$my_config_home" ]] || mkdir -p "$my_config_home"
+	writeConfig >"$cffile"
+}