mind-stack

s

#!/bin/bash

#  ======================================================= #
#   __  __ _           _       ____  _             _       #
#  |  \/  (_)_ __   __| |  _  / ___|| |_ __ _  ___| | __   #
#  | |\/| | | '_ \ / _` | (_) \___ \| __/ _` |/ __| |/ /   #
#  | |  | | | | | | (_| |  _   ___) | || (_| | (__|   <    #
#  |_|  |_|_|_| |_|\__,_| (_) |____/ \__\__,_|\___|_|\_\   #
#                                                          #
#  ======================================================= #

title=("$@")
unset title[0]
title_string=${title[*]}
space=" "

data_dir=~/.mind_stack
data_file=~/.mind_stack/data
mkdir -p $data_dir && touch $data_file

append(){
  echo "$(date "+%Y-%m-%d %H:%M:")" "$title_string" > $data_file.tmp && cat $data_file >> $data_file.tmp && mv $data_file.tmp $data_file
}
push(){
  echo "$(date "+%Y-%m-%d %H:%M:")" "$title_string" >> $data_file
}
list(){
  tac ~/.mind_stack/data
}
peek(){
  echo $( tail -1 $data_file | tr ":" "\n" | tail -1 | sed "s/^ *//g" )
}
pop(){
  peek
  head -n-1 $data_file > $data_file.tmp && mv $data_file.tmp $data_file
}
reset(){
  mv $data_file $data_file.$(date +%Y%m%d%H%M%S)
}
if [  $# -eq 0 ]
then
  list
  exit
fi

case $1 in
  push)
    push
    exit
    ;;
  pop)
    pop
    exit
    ;;
  peek)
    peek
    exit
    ;;
  ls)
    list
    exit
    ;;
  ap)
    append
    exit
    ;;
  reset)
    reset
    exit
    ;;
  help)
    echo 'Mind :: Stack usage:'
    echo '=========================================================='
    echo 's [push] some stuff #to add something to the top of stack'
    echo 's pop #to pop something from the top of the stack'
    echo 's peek #to peek at something on the top of the stack'
    echo 's ls #to list the whole stack'
    echo 's help #to print this usage/help'
    echo 's reset #to reset the stack'
    echo '=========================================================='
    exit
    ;;
  *)
    title_string=$1$space$title_string
    push
esac