[zsh] A new env init function to set XDG path variables

zsh/func/init-env-default-xdg-vars

@@ -0,0 +1,34 @@
+#!/usr/bin/env zsh
+# Eryn Wells <eryn@erynwells.me>
+
+# See https://specifications.freedesktop.org/basedir/latest/ for definitions of
+# these paths.
+
+
+function init-env-default-xdg-vars
+{
+    zmodload zsh/zutil
+
+    local -a opt_create
+    zparseopts -a opt_args -D -E -F - \
+        {c,-create,-no-create}=opt_create
+
+    export \
+        XDG_BIN_HOME=${XDG_BIN_HOME:-$HOME/.local/bin} \
+        XDG_CACHE_HOME=${XDG_CACHE_HOME:-$HOME/.cache} \
+        XDG_CONFIG_HOME=${XDG_CACHE_HOME:-$HOME/.config} \
+        XDG_DATA_HOME=${XDG_DATA_HOME:-$HOME/.local/share} \
+        XDG_STATE_HOME=${XDG_DATA_HOME:-$HOME/.local/state}
+
+    if [[ $opt_create[(I)--no-create] -ne 0 ]]; then
+        mkdir -p -m 0700 \
+            $XDG_BIN_HOME \
+            $XDG_CACHE_HOME \
+            $XDG_CONFIG_HOME \
+            $XDG_DATA_HOME \
+            $XDG_STATE_HOME
+    fi
+}
+
+
+init-env-default-xdg-vars "$@"