zshenv: update and simplify XDG

diff --git a/etc/zsh/.zshenv b/etc/zsh/.zshenv
index f1e6a55bbb1f95948459bf25c1063fefdba9fbb4..2cbb88a06810125fdd714d8f5242efe6aacb71dc 100644 (file)
--- a/etc/zsh/.zshenv
+++ b/etc/zsh/.zshenv
@@ -216,52 +216,43 @@ if [[ ! -v _sev_setup_xdg ]] {
       emulate sh -c "source $XDG_CONFIG_HOME/user-dirs.dirs"
 
     typeset -UT XDG_DATA_DIRS xdg_data_dirs
-    if [[ -v XDG_DATA_HOME ]] {
-        export XDG_DATA_HOME
-    } elif [[ ! -e ~/.local/share ]] {
-        mkdir -m760 ~/.local/share
-    }
-    xdg_data_dirs=($XDG_DATA_HOME /{opt,usr/local,usr/pkg,usr}/share
-      ${XDG_DATA_DIRS:+${xdg_data_dirs%%/}})
+    [[ -v XDG_DATA_HOME ]] && export XDG_DATA_HOME
+    [[ -e ${XDG_DATA_HOME:-~/.local/share} ]] ||
+      mkdir -m760 ${XDG_DATA_HOME:-~/.local/share}
+    xdg_data_dirs=($XDG_DATA_HOME ${XDG_DATA_DIRS:+${xdg_data_dirs%%/}}
+      /{usr{,/local,/pkg},opt{,/*{/*,}}}/share(N))
+    xdg_data_dirs=($xdg_data_dirs(/N))
     export XDG_DATA_DIRS
 
     typeset -UT XDG_CONFIG_DIRS xdg_config_dirs
-    if [[ -v XDG_CONFIG_HOME ]] {
-        export XDG_CONFIG_HOME
-    } elif [[ ! -e ~/.config ]] {
-        mkdir -m760 ~/.config
-    }
+    [[ -v XDG_CONFIG_HOME ]] && export XDG_CONFIG_HOME
+    [[ -e ${XDG_CONFIG_HOME:-~/.config} ]] ||
+      mkdir -m760 ${XDG_CONFIG_HOME:-~/.config}
     # I am of the belief .local should follow FHS /usr/local...
-    [[ -e ~/.local/etc ]] || ln -s ~/.config ~/.local/etc
-    xdg_config_dirs=($XDG_CONFIG_HOME
-      ${XDG_CONFIG_DIRS:+${xdg_config_dirs%%/}}
-      {/opt,/usr/local,/usr/pkg,}/etc/xdg)
+    [[ -e ~/.local/etc ]] || ln -s ${XDG_CONFIG_HOME:-~/.config} ~/.local/etc
+    xdg_config_dirs=($XDG_CONFIG_HOME ${XDG_CONFIG_DIRS:+${xdg_config_dirs%%/}}
+      {,/usr{,/local,/pkg},opt{,/*{/*,}}}/etc/xdg(N))
+    xdg_config_dirs=($xdg_config_dirs(/N))
     export XDG_CONFIG_DIRS
 
-    if [[ -v XDG_STATE_HOME ]] {
-        export XDG_STATE_HOME
-    } elif [[ ! -e ~/.local/state ]] {
-        mkdir -m760 ~/.local/state
-    }
+    [[ -v XDG_STATE_HOME ]] && export XDG_STATE_HOME
+    [[ -e ${XDG_STATE_HOME:-~/.local/state} ]] ||
+      mkdir -m760 ${XDG_STATE_HOME:-~/.local/state}
 
     if [[ -v XDG_CACHE_HOME ]] {
         export XDG_CACHE_HOME
     } else {
-        if [[ -v _sev_tmp ]] {
-            export XDG_CACHE_HOME=$_sev_tmp/.xdg.cache
-            [[ -e $XDG_CACHE_HOME ]] || mkdir -m700 $XDG_CACHE_HOME
-        } elif [[ ! -e ~/.cache ]] {
-            mkdir -m700 ~/.cache
-        }
+        export XDG_CACHE_HOME=$_sev_tmp/.xdg.cache
     }
+    [[ -e ${XDG_CACHE_HOME:-~/.cache} ]] ||
+      mkdir -m700 ${XDG_CACHE_HOME:-~/.cache}
 
+    # NOTE: this can be set by systemd or other pre-shell supervisor, and if
+    #       any services were started such as pipewire, we need to use the
+    #       existing runtime dir to preserve runtime state
     if [[ -v XDG_RUNTIME_DIR ]] {
-        # NOTE: this can be set by systemd or other pre-shell supervisor, and
-        #       if any services were started such as pipewire, we need to use
-        #       the existing runtime dir so that we can get any existing
-        #       program sockets or other data
         export XDG_RUNTIME_DIR
-    } elif [[ -v TMPDIR ]] {
+    } else {
         # make runtime dir in our session-specific tmpdir
         export XDG_RUNTIME_DIR=$TMPDIR/.xdg.runtime
         # same as in tmpdir creation, ensure dir doesn't exist
@@ -270,8 +261,9 @@ if [[ ! -v _sev_setup_xdg ]] {
         } elif [[ -e $XDG_RUNTIME_DIR ]] {
             rm -rf $XDG_RUNTIME_DIR 2>/dev/null
         }
-        mkdir -m700 $XDG_RUNTIME_DIR 2>/dev/null
     }
+    [[ ! -e $XDG_RUNTIME_DIR ]] &&
+      mkdir -m700 $XDG_RUNTIME_DIR 2>/dev/null
 
     export _sev_setup_xdg=
 }