no duplicate history entries, better fzf ctrl-r search

zsh/zshrc

@@ -29,8 +29,8 @@ setopt always_to_end
 if [ -z $HISTFILE ]; then
     HISTFILE=$HOME/.zsh_history
 fi
-HISTSIZE=10000
-SAVEHIST=10000
+HISTSIZE=1000000
+SAVEHIST=1000000
 
 # easy vim/terminal switch
 zle -N fancy-ctrl-z
@@ -39,11 +39,13 @@ bindkey '^Z' fancy-ctrl-z
 setopt append_history
 setopt extended_history
 setopt hist_expire_dups_first
-setopt hist_ignore_dups # ignore duplication command history list
+setopt hist_ignore_dups
+setopt hist_save_no_dups
+setopt hist_ignore_all_dups
 setopt hist_ignore_space
 setopt hist_verify
 setopt inc_append_history
-setopt share_history # share command history data
+setopt share_history
 
 # smart urls
 autoload -U url-quote-magic