@

#!/bin/bash

# "@Pad"
# An easy commandline time-stamped log/notepad
# Derived from http://blog.rubybestpractices.com/posts/jamesbritt/James_will_be_right_back_after_these_interruptions.html
#
# Usage:
#   @ something or other   - log the timestamped message "something or other"
#   @ .                    - open the @ scratchpad with a new timestamp and 
#                            no message with your default editor
#   @ -                    - log a timestamped message read from stdin
#   @                      - open the @ scratchpad in your default editor
#
DATA_FILE="$HOME/.at" 
EDIT_METHOD=prepend # or append
TS=$(date)

# make sure the file exists
touch $DATA_FILE

prepend() {
  echo -e "--- $TS:\n$MSG\n\n" >> "/tmp/at-$$"
  cat $DATA_FILE >> "/tmp/at-$$"
  mv "/tmp/at-$$" $DATA_FILE  
}

append() {
  echo -e "--- $TS:\n$MSG\n\n" >> $DATA_FILE
}

if [ ! -n "$1" ]
then
  $EDITOR $DATA_FILE
elif [ "." = "$1" ]
then
  $EDIT_METHOD
  $EDITOR $DATA_FILE
elif [ "-" = "$1" ]
then
  MSG=$(cat)
  $EDIT_METHOD
else
  MSG="$*"
  $EDIT_METHOD
fi