Added history to zsh.

Users can still set $HISTFILE if they want to and this will be used instead.
If no value is specified it will default to the $ZDIR/transient/history file.

zsh/modules/history/init.zsh

@@ -0,0 +1,18 @@
+HISTFILE=${HISTFILE:-$ZDIR/transient/history}  # The path to the history file.
+HISTSIZE=100000                                # The maximum number of events to save in the internal history.
+SAVEHIST=100000                                # The maximum number of events to save in the history file.
+
+setopt BANG_HIST                 # Treat the '!' character specially during expansion.
+setopt EXTENDED_HISTORY          # Write the history file in the ':start:elapsed;command' format.
+setopt INC_APPEND_HISTORY        # Write to the history file immediately, not when the shell exits.
+setopt SHARE_HISTORY             # Share history between all sessions.
+setopt HIST_EXPIRE_DUPS_FIRST    # Expire a duplicate event first when trimming history.
+setopt HIST_IGNORE_DUPS          # Do not record an event that was just recorded again.
+setopt HIST_IGNORE_ALL_DUPS      # Delete an old recorded event if a new event is a duplicate.
+setopt HIST_FIND_NO_DUPS         # Do not display a previously found event.
+setopt HIST_IGNORE_SPACE         # Do not record an event starting with a space.
+setopt HIST_SAVE_NO_DUPS         # Do not write a duplicate event to the history file.
+setopt HIST_VERIFY               # Do not execute immediately upon history expansion.
+setopt HIST_BEEP                 # Beep when accessing non-existent history.
+
+chmod 700 $HISTFILE              # Always make sure that only I can access history.

zsh/zplug

@@ -38,6 +38,10 @@ zplug "${ZDIR}/modules/fzf/", \
       use:"fzf-tmux", \
       as:command
 
+zplug "${ZDIR}/modules/history/", \
+      from:local, \
+      as:plugin
+
 
 
 env_loader zplug