add bash-it

dot_bash_it/plugins/available/percol.plugin.bash

@@ -0,0 +1,32 @@
+# shellcheck shell=bash
+cite about-plugin
+about-plugin 'Search&Select history with percol'
+
+# Notice
+## You have to upgrade bash to bash 4.x on Mac OS X.
+## http://stackoverflow.com/questions/16416195/how-do-i-upgrade-bash-in-mac-osx-mountain-lion-and-set-it-the-correct-path
+
+# Install
+## (sudo) pip install percol
+## bash-it enable percol
+
+# Usage
+## C-r to search&select from history
+
+_command_exists percol || return
+
+if [[ ${BASH_VERSINFO[0]} -lt 4 ]]; then
+	_log_warning "You have to upgrade Bash to Bash v4.x to use the 'percol' plugin."
+	_log_warning "Your current Bash version is $BASH_VERSION."
+	return
+fi
+
+function _replace_by_history() {
+	local HISTTIMEFORMAT= # Ensure we can parse history properly
+	#TODO: "${histlines[@]/*( )+([[:digit:]])*( )/}"
+	local l
+	l="$(history | tail -r | sed -e 's/^\ *[0-9]*\ *//' | percol --query "${READLINE_LINE:-}")"
+	READLINE_LINE="${l}"
+	READLINE_POINT=${#l}
+}
+bind -x '"\C-r": _replace_by_history'