Bash History Scripts

.bash_profile

source ~/.bash/history.sh

history.rb

# frozen_string_literal: true
HISTORY_REGEX = /^(.*\.history\/\d{4}\/\d{2}\/\d{2}\/\d+).#(\d+)$\n^.*\.*\.history\/\d{4}\/\d{2}\/\d{2}\/\d+:(.*)$/
PID_REGEX = /^.*\.history\/\d{4}\/\d{2}\/\d{2}\/(\d+).*$/

results = ARGF.read.scan(HISTORY_REGEX)
results.map! do |result|
  date = Time.at(result[1].to_i)
  file = result[0]
  pid = file.scan(PID_REGEX)[0][0]
  command = result[2]

  [date, "#{pid} #{date.strftime('[%F %T]')} #{command}"]
end

results.sort.each {|r| puts r[1] }

history.sh

# setting HISTSIZE and HISTFILESIZE to empty allows no limit.
export HISTSIZE=
export HISTFILESIZE=

export HISTTIMEFORMAT="[%F %T] "

# ignore:
# 1 character and 2 character commands ( ?:?? )
# ls, bg, fg, history, exit, pwd, clear commands
# any command preceded with a space (` cat file` would be ignored) ([ \t]*)
export HISTIGNORE="?:??:ls:[bf]g:history:exit:pwd:clear:[ \t]*"

# /Users/locriani/.history/2018/05/02/62135
export HISTFILE="${HOME}/.history/$(date -u +%Y/%m/%d/$$)"

mkdir -p "${HISTFILE%/*}"

# Mac OS X does some dumb things, so you need to make sure the prompt uses -w, and not -a
export PROMPT_COMMAND="history -w; $PROMPT_COMMAND"

# Mac OS X does some dumb things, so you need to make sure this file exists, or
# any history setting changes you make will be ignored
touch "${HOME}/.bash_sessions_disable"

# [2018-05-02 00:33:04] xargs
h() {
  grep -r -H -B1 $@ ${HOME}/.history | \
  ruby ${HOME}/.bash/history.rb | \
  grep -B1 --color -E "$@|$$|\$"
}