til-ov

   1 #!/usr/bin/env bash
   2
   3 #=======================================================================
   4 # til-ov
   5 # File ID: 75a10a58-8f7e-11e5-a744-fefdb24f8e10
   6 #
   7 # [Description]
   8 #
   9 # Author: Øyvind A. Holm <sunny@sunbase.org>
  10 # License: GNU General Public License version 2 or later.
  11 #=======================================================================
  12
  13 progname=til-ov
  14 VERSION=0.3.0
  15
  16 ARGS="$(getopt -o "\
  17 h\
  18 i\
  19 q\
  20 r\
  21 v\
  22 " -l "\
  23 help,\
  24 init,\
  25 quiet,\
  26 reverse,\
  27 verbose,\
  28 version,\
  29 " -n "$progname" -- "$@")"
  30 test "$?" = "0" || exit 1
  31 eval set -- "$ARGS"
  32
  33 opt_help=0
  34 opt_init=0
  35 opt_quiet=0
  36 opt_reverse=0
  37 opt_verbose=0
  38 while :; do
  39     case "$1" in
  40         -h|--help) opt_help=1; shift ;;
  41         -i|--init) opt_init=1; shift ;;
  42         -q|--quiet) opt_quiet=$(($opt_quiet + 1)); shift ;;
  43         -r|--reverse) opt_reverse=1; shift ;;
  44         -v|--verbose) opt_verbose=$(($opt_verbose + 1)); shift ;;
  45         --version) echo $progname $VERSION; exit 0 ;;
  46         --) shift; break ;;
  47         *) echo $progname: Internal error >&2; exit 1 ;;
  48     esac
  49 done
  50 opt_verbose=$(($opt_verbose - $opt_quiet))
  51
  52 if test "$opt_help" = "1"; then
  53     test $opt_verbose -gt 0 && { echo; echo $progname $VERSION; }
  54     cat <<END
  55
  56 Usage: $progname [options] [km [timestamp]]
  57
  58 Options:
  59
  60   -h, --help
  61     Show this help.
  62   -i, --init
  63     Init the spar db with initial values.
  64   -q, --quiet
  65     Be more quiet. Can be repeated to increase silence.
  66   -r, --reverse
  67     Count km in reverse order, from 0 and up.
  68   -v, --verbose
  69     Increase level of verbosity. Can be repeated.
  70   --version
  71     Print version information.
  72
  73 END
  74     exit 0
  75 fi
  76
  77 destkm=$1
  78 desttime=$2
  79
  80 test -z "$desttime" && desttime=18:00
  81 test -z "$destkm" && destkm=7.68
  82
  83 currdate="$(date -u +%Y-%m-%d)"
  84 currtime="$(date -u +%H:%M:%S)"
  85 currsec=$(date -u +%s)
  86
  87 destdate="$currdate $desttime"
  88 echo "$desttime" | grep -q ' ' && {
  89     destdate="$desttime"
  90 }
  91
  92 if test "$opt_init" = "1"; then
  93     if test "$opt_reverse" = "1"; then
  94         beginkm=0
  95         endkm=$destkm
  96     else
  97         beginkm=$destkm
  98         endkm=0
  99     fi
 100     spar ov \
 101         --bt "$currdate $currtime" \
 102         --et "$destdate" \
 103         --bv "$beginkm" \
 104         --ev "$endkm" \
 105         >/dev/null
 106 fi
 107
 108 destsec=$(date -u -d "$destdate" +%s)
 109 printf '%.2f km/h\n' $(echo "$destkm/($destsec-$currsec)*3600" | bc)
 110
 111 while :; do
 112     printf '%.3f\n' $(spar ov)
 113     sleep 1
 114 done | uniq