Add tre (plus tree alias)

nix-conf/home/includes/common.nix

@@ -58,6 +58,7 @@ in
     rlwrap
     sd
     tealdeer
+    tre-command
     ugrep
     uni
     w3m

nix-conf/home/includes/zsh.nix

@@ -50,6 +50,7 @@
       cp = "cp -iv";
       mv = "mv -iv";
       mkdir = "mkdir -v";
+      tree = "exa --tree";
 
       pp = "pushbullet push \"Pixel\" link \"\${1}\" \"\${1}\"";
 
@@ -134,6 +135,8 @@
 
       function generate () { gopass generate -s -p $1 $((RANDOM % 14 + 45)) }
 
+      tre () { command tre "$@" -e && source "/tmp/tre_aliases_$USER" 2>/dev/null; }
+
       function gcd () {
         if [ $# -eq 0 ] ; then
           echo "Number of days must be specified" >&2