notes.sh

   1 #! /bin/bash
   2
   3 # set -ex
   4
   5 PID=$$
   6 VERSION="0.1"
   7 EDITOR=${EDITOR:-/usr/bin/vim}
   8 BASEDIR=${BASEDIR:-~/.bash-notes}
   9 DB=${BASEDIR}/db.json
  10 TMPDB=/tmp/db.json
  11 NOTESDIR=${BASEDIR}/notes
  12 BASENAME=$( basename $0 )
  13 TERMINAL=${TERMINAL:-/usr/bin/alacritty}
  14 JQ=$(which jq)
  15
  16 if [ ! -x $JQ ]; then
  17         echo "jq not found in your PATH"
  18         echo "install jq to continue"
  19         exit 1
  20 fi
  21
  22 # We prevent the program from running more than one instance:
  23 PIDFILE=/var/tmp/$(basename $0 .sh).pid
  24
  25 # Make sure the PID file is removed when we kill the process
  26 trap 'rm -f $PIDFILE; exit 1' TERM INT
  27
  28 if [[ -r $PIDFILE ]]; then
  29         # PIDFILE exists, so I guess there's already an instance running
  30         # let's kill it and run again
  31         kill -s 15 $(cat $PIDFILE) > /dev/null 2>&1
  32         # should already be deleted by trap, but just to be sure
  33         rm $PIDFILE
  34 fi
  35
  36 # create PIDFILE
  37 echo $PID > $PIDFILE
  38
  39 function helptext() {
  40     echo "Parameters are:"
  41     echo "  -h                  : This help text"
  42     echo "  -s <directory>      : specify directory where to store all notes."
  43     echo "  -e <editor>         : specify EDITOR for this session only."
  44     echo "  -l                  : List existing notes"
  45     echo "  -a                  : Add new note"
  46     echo "  -m <note>           : Modify note"
  47     echo "  -d <note>           : Modify date for note"
  48     echo "  -r <note>           : Remove note"
  49     echo "  -v                  : Print version"
  50 }
  51
  52 function addnote() {
  53         NOTETITLE=$1
  54         echo "add new note"
  55         NOW=$(date +%s)
  56         FILEDATE=$(date -d @$NOW +%d/%m/%Y_%T)
  57         LASTID=$($JQ '.notes[-1].id' $DB)
  58         [ null == $LASTID ] && LASTID=0
  59         NOTEID=$(( $LASTID + 1 ))
  60         touch ${NOTESDIR}/${NOW}
  61         $JQ --arg i "$NOTEID" --arg t "$NOTETITLE" --arg f "$NOW" '.notes += [{"id": $i, "title": $t, "file": $f}]' "$DB" > $TMPDB
  62         mv $TMPDB $DB
  63         NEWNOTE=$(${TERMINAL} --class notes --title notes -e ${EDITOR} ${NOTESDIR}/${NOW})
  64         if [[ $NEWNOTE ]]; then
  65                 echo "New note saved!"
  66         fi
  67 }
  68
  69 function listnotes() {
  70         echo "list all notes"
  71 }
  72
  73 function editnote() {
  74         echo "edit note \"${1}\""
  75 }
  76
  77 function datenote() {
  78         echo "edit date for note \"${1}\""
  79 }
  80
  81 function rmnote() {
  82         echo "remove note"
  83 }
  84
  85 function firstrun() {
  86         mkdir -p $NOTESDIR
  87         cat << "__EOL__" > $DB
  88 {
  89         "notes": []
  90 }
  91 __EOL__
  92 }
  93
  94 # check for notes dir existance and create it in case it doesn't exists
  95 if [[ ! -d $NOTESDIR ]]; then
  96         # we don't have a directory. FIRST RUN?
  97         firstrun
  98 fi
  99
 100 # Command line parameter processing:
 101 while getopts ":a:hlvm:s:n:e:r:d:" Option
 102 do
 103   case $Option in
 104         h ) helptext
 105         exit
 106         ;;
 107     a ) TITLE=${OPTARG}
 108                 addnote $TITLE
 109         ;;
 110     l ) listnotes
 111         ;;
 112     m ) NOTE=${OPTARG}
 113                 editnote "${NOTE}"
 114         ;;
 115     d ) NOTE=${OPTARG}
 116                 datenote "${NOTE}"
 117         ;;
 118     r ) NOTE=${OPTARG}
 119                 rmnote "${NOTE}"
 120         ;;
 121     e ) EDITOR=${OPTARG}
 122         ;;
 123     s ) NOTESDIR=${OPTARG}
 124         ;;
 125     v ) echo $BASENAME v${VERSION}
 126         ;;
 127     * ) echo "You passed an illegal switch to the program!"
 128         echo "Run '$0 -h' for more help."
 129         exit
 130         ;;   # DEFAULT
 131   esac
 132 done
 133
 134 # End of option parsing.
 135 shift $(($OPTIND - 1))
 136 #  $1 now references the first non option item supplied on the command line
 137 #  if one exists.
 138 # ---------------------------------------------------------------------------
 139