todo.sh

   1 #!/bin/sh
   2 # TODO, a cli GTD toy
   3 # Copyright (C) 2008  Alejandro Mery <amery@geeks.cl>
   4 #
   5 # This program is free software: you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation, either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 todo_usage()
  19 {
  20         local cmd="${0##*/}"
  21
  22         [ $# -eq 0 ] || echo "ERROR: $*" >&2
  23         cat <<-EOT >&2
  24         Usage: $0 [options] [<object>]
  25            ${cmd} [-t <tag>*] [<message>]   - new entry
  26            ${cmd} [-T|--tags]               - list tags
  27
  28         EOT
  29         exit 1
  30 }
  31
  32 todo_trap()
  33 {
  34         echo "Ctrl-C pressed, aborting." >&2
  35         rm -rf "$TODOTMP"
  36         exit 1
  37 }
  38
  39 trap ':' INT
  40
  41 options=$( getopt -o "t:T" -l "tags" -- "$@" )
  42 if [ $? -ne 0 ]; then
  43         todo_usage
  44 fi
  45
  46 # load new arguments list
  47 eval set -- "$options"
  48
  49 TAGS=
  50 MODE=new
  51
  52 while [ $# -gt 0 ]; do
  53         case "$1" in
  54         -T|--tags)
  55                 MODE=tags ;;
  56
  57         -t)     TAGS="$TAGS $2"; shift ;;
  58
  59         --)     shift; break ;;
  60         -*)     todo_usage unknown option "$1"
  61                 ;;
  62         esac
  63         shift
  64 done
  65
  66 TAGS=$( echo "$TAGS" | tr 'a-z' 'A-Z' )
  67
  68 TODODIR="$HOME/.todo"
  69
  70 todo_new()
  71 {
  72         TODOTMP="${TMP:-/tmp}/.todo.$$"
  73         DATE=
  74         # find a unique date/hash
  75         #
  76         while [ -z "$DATE" ]; do
  77                 DATE=$(date --rfc-3339=seconds)
  78                 DATEHASH=$( echo "$DATE" | sha1sum | cut -d' ' -f1 )
  79                 DATEHASH_1=$( echo "$DATEHASH" | cut -c 1 )
  80                 ENTRYDIR="$TODODIR/entries/$DATEHASH_1"
  81                 ENTRY="$ENTRYDIR/$DATEHASH"
  82
  83                 if [ -e "$ENTRY" ]; then
  84                         DATE=
  85                         sleep 1
  86                 else
  87                         mkdir -p "$ENTRYDIR"
  88                 fi
  89         done
  90
  91         if [ $# -gt 0 ]; then
  92                 echo "$*" > "$TODOTMP"
  93                 echo "Added: $DATE" >> "$TODOTMP"
  94         else
  95                 echo "Subject: ..." > "$TODOTMP.empty"
  96                 echo "Added: $DATE" >> "$TODOTMP.empty"
  97                 cp "$TODOTMP.empty" "$TODOTMP"
  98
  99                 ${EDITOR:-vi} "$TODOTMP"
 100
 101                 if cmp -s "$TODOTMP" "$TODOTMP.empty"; then
 102                         rm -f "$TODOTMP" "$TODOTMP.empty"
 103                         return
 104                 fi
 105         fi
 106
 107         mv "$TODOTMP" "$ENTRY"
 108
 109         for tag in $TAGS INBOX; do
 110                 [ -d "$TODODIR/$tag" ] || mkdir "$TODODIR/$tag"
 111
 112                 ln -s "../entries/$DATEHASH_1/$DATEHASH" "$TODODIR/$tag/$DATEHASH"
 113         done
 114
 115         echo "$DATEHASH"
 116 }
 117
 118 todo_tags()
 119 {
 120         ls -1d "$TODODIR"/* | sed -e "s,^$TODODIR/,," | grep -v '^entries$'
 121 }
 122
 123 case "$MODE" in
 124         new)    todo_new "$@" ;;
 125         tags)   todo_tags ;;
 126 esac