zsh: modified auto cd functionality (now, off by default, added aliases

lwd and swd, too)

.zshrc

@@ -24,7 +24,8 @@
 
    export ZINIT_HOME_DIR=""
 
-   SAVE_WORKING_DIR=true
+   AUTO_SAVE_WORKING_DIR=true
+   AUTO_LOAD_LAST_WORKING_DIR=false
    WORKING_DIR_SAVE_FILE="${XDG_CONFIG_HOME:-$HOME/.config}/shell/last-dir.save" 
 
    # (I know this shouldn't go here, but I needed it to happen early)
@@ -215,6 +216,36 @@
       fi
    }
 
+   # Loads the last working directory (or the one you're in)
+   alias lwd=load_working_dir
+   load_working_dir() {
+      # load the directory  (and do validation to make sure it's actually a directory)
+      if test -f "$WORKING_DIR_SAVE_FILE"; then
+         local PREVIOUS_WORKING_DIR="$(cat "$WORKING_DIR_SAVE_FILE")"
+         if test -d "$(cat "$WORKING_DIR_SAVE_FILE")"; then
+            cd "$PREVIOUS_WORKING_DIR" || error $LINENO
+         else
+            echo "Invalid saved working directory ($PREVIOUS_WORKING_DIR)"
+         fi
+      else
+         echo "Invalid working directory save file ($WORKING_DIR_SAVE_FILE)"
+      fi
+   }
+
+   # Saves the CWD to a file
+   alias swd=save_working_dir
+   save_working_dir() {
+      $SAVE_WORKING_DIR && pwd > "$WORKING_DIR_SAVE_FILE"
+   }
+
+   # automatically save and resume working directory >>>
+   $AUTO_LOAD_LAST_WORKING_DIR && load_working_dir
+   if $AUTO_SAVE_WORKING_DIR; then
+      autoload -U add-zsh-hook
+      add-zsh-hook chpwd save_working_dir
+   fi
+   # <<<
+
    # Simple extraction script. Taken from manjaro's .bashrc
    ex() {
       if [ -f $1 ] ; then
@@ -250,10 +281,11 @@
       echo "$FILEPATH" | grep -o 'site.*' | sed 's+^site+https://blakenorth.net+g'
    }
 
+   # for sending error messages from functions and whatnot
    error() {
       ERROR_CODE="$?"
       >&2 echo "An error occurred within a function in the .zshrc on line number ${1}"
-      exit $ERROR_CODE
+      return $ERROR_CODE
    } 
 
    # prcolors(): Display all colors in a few different ways >>>
@@ -268,7 +300,7 @@
       printf "Values 30..37 are \e[33mforeground colors\e[m\n"
       printf "Values 40..47 are \e[43mbackground colors\e[m\n"
       printf "Value  1 gives a  \e[1mbold-faced look\e[m\n\n"
-      
+
       # foreground colors
       for fgc in {30..37}; do
          # background colors
@@ -278,7 +310,7 @@
             
             vals="${fgc:+$fgc;}${bgc}"
             vals=${vals%%;}
-            
+
             seq0="${vals:+\e[${vals}m}"
             printf "  %-9s" "${seq0:-(default)}"
             printf " ${seq0}TEXT\e[m"
@@ -374,6 +406,7 @@
       ls --color=auto
    }
 
+   # believe it or not, zsh makes for a fine calculator
    calc() {
       echo $(($*))
    }
@@ -543,27 +576,6 @@ bindkey -M vicmd 'k' history-substring-search-up
 bindkey -M vicmd 'j' history-substring-search-down
 # <<<
 
-# automatically save and resume working directory >>>
-if $SAVE_WORKING_DIR; then
-   # load the directory  (and do validation to make sure it's actually a directory)
-   if test -f "$WORKING_DIR_SAVE_FILE"; then
-      local PREVIOUS_WORKING_DIR="$(cat "$WORKING_DIR_SAVE_FILE")"
-      if test -d "$(cat "$WORKING_DIR_SAVE_FILE")"; then
-         cd "$PREVIOUS_WORKING_DIR" || error $LINENO
-      else
-         echo "Invalid saved working directory ($PREVIOUS_WORKING_DIR)"
-      fi
-   else
-      echo "Invalid working directory save file ($WORKING_DIR_SAVE_FILE)"
-   fi
-
-   save_working_dir() {
-      $SAVE_WORKING_DIR && pwd > "$WORKING_DIR_SAVE_FILE"
-   }
-   autoload -U add-zsh-hook
-   add-zsh-hook chpwd save_working_dir
-fi
-# <<<
 # Colors and compinit >>>
 export LESS_TERMCAP_mb=$'\E[01;32m'
 export LESS_TERMCAP_md=$'\E[01;32m'