ohmyzsh/plugins/dirpersist/dirpersist.plugin.zsh
Jacob Tomaw 1ba0af650a Use safer append to hook function arrays (#8406)
Use add-zsh-hook to add functions to hooks. That way they won't be added again
when doing `source ~/.zshrc` multiple times.

Co-authored-by: Marc Cornellà <marc.cornella@live.com>
2019-11-19 18:47:12 +01:00

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# Save dirstack history to .zdirs
# adapted from:
# github.com/grml/grml-etc-core/blob/master/etc/zsh/zshrc#L1547
DIRSTACKSIZE=${DIRSTACKSIZE:-20}
dirstack_file=${dirstack_file:-${HOME}/.zdirs}
if [[ -f ${dirstack_file} ]] && [[ ${#dirstack[*]} -eq 0 ]] ; then
dirstack=( ${(f)"$(< $dirstack_file)"} )
# "cd -" won't work after login by just setting $OLDPWD, so
[[ -d $dirstack[1] ]] && cd $dirstack[1] && cd $OLDPWD
fi
autoload -U add-zsh-hook
add-zsh-hook chpwd chpwd_dirpersist
chpwd_dirpersist() {
if (( $DIRSTACKSIZE <= 0 )) || [[ -z $dirstack_file ]]; then return; fi
local -ax my_stack
my_stack=( ${PWD} ${dirstack} )
builtin print -l ${(u)my_stack} >! ${dirstack_file}
}