diff options
Diffstat (limited to 'plugins/per-directory-history')
| -rw-r--r-- | plugins/per-directory-history/per-directory-history.plugin.zsh | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/plugins/per-directory-history/per-directory-history.plugin.zsh b/plugins/per-directory-history/per-directory-history.plugin.zsh new file mode 100644 index 000000000..61e8b5a62 --- /dev/null +++ b/plugins/per-directory-history/per-directory-history.plugin.zsh @@ -0,0 +1,149 @@ +#!/usr/bin/env zsh +# +# This is a implementation of per directory history for zsh, some +# implementations of which exist in bash[1,2]. It also implements +# a per-directory-history-toggle-history function to change from using the +# directory history to using the global history. In both cases the history is +# always saved to both the global history and the directory history, so the +# toggle state will not effect the saved histories. Being able to switch +# between global and directory histories on the fly is a novel feature as far +# as I am aware. +# +#------------------------------------------------------------------------------- +# Configuration +#------------------------------------------------------------------------------- +# +# HISTORY_BASE a global variable that defines the base directory in which the +# directory histories are stored +# +#------------------------------------------------------------------------------- +# History +#------------------------------------------------------------------------------- +# +# The idea/inspiration for a per directory history is from Stewart MacArthur[1] +# and Dieter[2], the implementation idea is from Bart Schaefer on the the zsh +# mailing list[3]. The implementation is by Jim Hester in September 2012. +# +# [1]: http://www.compbiome.com/2010/07/bash-per-directory-bash-history.html +# [2]: http://dieter.plaetinck.be/per_directory_bash +# [3]: http://www.zsh.org/mla/users/1997/msg00226.html +# +################################################################################ +# +# Copyright (c) 2012 Jim Hester +# +# This software is provided 'as-is', without any express or implied warranty. +# In no event will the authors be held liable for any damages arising from the +# use of this software. +# +# Permission is granted to anyone to use this software for any purpose, +# including commercial applications, and to alter it and redistribute it +# freely, subject to the following restrictions: +# +# 1. The origin of this software must not be misrepresented; you must not claim +# that you wrote the original software. If you use this software in a product, +# an acknowledgment in the product documentation would be appreciated but is +# not required. +# +# 2. Altered source versions must be plainly marked as such, and must not be +# misrepresented as being the original software. +# +# 3. This notice may not be removed or altered from any source distribution.. +# +################################################################################ + +#------------------------------------------------------------------------------- +# configuration, the base under which the directory histories are stored +#------------------------------------------------------------------------------- + +[[ -z $HISTORY_BASE ]] && HISTORY_BASE="$HOME/.directory_history" + +#------------------------------------------------------------------------------- +# toggle global/directory history used for searching - ctrl-G by default +#------------------------------------------------------------------------------- + +function per-directory-history-toggle-history() { + if [[ $_per_directory_history_is_global == true ]]; then + _per-directory-history-set-directory-history + print "\nusing local history\n" + else + _per-directory-history-set-global-history + print "\nusing global history\n" + fi + zle .push-line + zle .accept-line +} + +autoload per-directory-history-toggle-history +zle -N per-directory-history-toggle-history +bindkey '^G' per-directory-history-toggle-history + +#------------------------------------------------------------------------------- +# implementation details +#------------------------------------------------------------------------------- + +_per_directory_history_directory="$HISTORY_BASE${PWD:A}/history" + +function _per-directory-history-change-directory() { + _per_directory_history_directory="$HISTORY_BASE${PWD:A}/history" + mkdir -p ${_per_directory_history_directory:h} + if [[ $_per_directory_history_is_global == false ]]; then + #save to the global history + fc -AI $HISTFILE + #save history to previous file + local prev="$HISTORY_BASE${OLDPWD:A}/history" + mkdir -p ${prev:h} + fc -AI $prev + + #discard previous directory's history + local original_histsize=$HISTSIZE + HISTSIZE=0 + HISTSIZE=$original_histsize + + #read history in new file + if [[ -e $_per_directory_history_directory ]]; then + fc -R $_per_directory_history_directory + fi + fi +} + +function _per-directory-history-addhistory() { + print -sr -- ${1%%$'\n'} + fc -p $_per_directory_history_directory +} + + +function _per-directory-history-set-directory-history() { + if [[ $_per_directory_history_is_global == true ]]; then + fc -AI $HISTFILE + local original_histsize=$HISTSIZE + HISTSIZE=0 + HISTSIZE=$original_histsize + if [[ -e "$_per_directory_history_directory" ]]; then + fc -R "$_per_directory_history_directory" + fi + fi + _per_directory_history_is_global=false +} +function _per-directory-history-set-global-history() { + if [[ $_per_directory_history_is_global == false ]]; then + fc -AI $_per_directory_history_directory + local original_histsize=$HISTSIZE + HISTSIZE=0 + HISTSIZE=$original_histsize + if [[ -e "$HISTFILE" ]]; then + fc -R "$HISTFILE" + fi + fi + _per_directory_history_is_global=true +} + + +#add functions to the exec list for chpwd and zshaddhistory +chpwd_functions=(${chpwd_functions[@]} "_per-directory-history-change-directory") +zshaddhistory_functions=(${zshaddhistory_functions[@]} "_per-directory-history-addhistory") + +#start in directory mode +mkdir -p ${_per_directory_history_directory:h} +_per_directory_history_is_global=true +_per-directory-history-set-directory-history |