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            ${cmd} [-L] [<tag>*]             - list entry hashes
  28
  29         EOT
  30         exit 1
  31 }
  32
  33 todo_trap()
  34 {
  35         echo "Ctrl-C pressed, aborting." >&2
  36         rm -rf "$TODOTMP"
  37         exit 1
  38 }
  39
  40 todo_sane_tags()
  41 {
  42         echo "$*" | tr 'a-z' 'A-Z' | sed \
  43                 -e 's/^ *//' -e 's/ *$//' -e 's/  */ /g'
  44 }
  45
  46 trap ':' INT
  47
  48 options=$( getopt -o "t:TL" -l "tags" -- "$@" )
  49 if [ $? -ne 0 ]; then
  50         todo_usage
  51 fi
  52
  53 # load new arguments list
  54 eval set -- "$options"
  55
  56 TAGS=
  57 MODE=new
  58
  59 while [ $# -gt 0 ]; do
  60         case "$1" in
  61         -T|--tags)
  62                 MODE=tags ;;
  63         -L)
  64                 MODE=list_raw ;;
  65
  66         -t)     TAGS="$TAGS $2"; shift ;;
  67
  68         --)     shift; break ;;
  69         -*)     todo_usage unknown option "$1"
  70                 ;;
  71         esac
  72         shift
  73 done
  74
  75 TODODIR="$HOME/.todo"
  76
  77 todo_new()
  78 {
  79         TODOTMP="${TMP:-/tmp}/.todo.$$"
  80         DATE=
  81         # find a unique date/hash
  82         #
  83         while [ -z "$DATE" ]; do
  84                 DATE=$(date --rfc-3339=seconds)
  85                 DATEHASH=$( echo "$DATE" | sha1sum | cut -d' ' -f1 )
  86                 DATEHASH_1=$( echo "$DATEHASH" | cut -c 1 )
  87                 ENTRYDIR="$TODODIR/entries/$DATEHASH_1"
  88                 ENTRY="$ENTRYDIR/$DATEHASH"
  89
  90                 if [ -e "$ENTRY" ]; then
  91                         DATE=
  92                         sleep 1
  93                 else
  94                         mkdir -p "$ENTRYDIR"
  95                 fi
  96         done
  97
  98         if [ $# -gt 0 ]; then
  99                 echo "$*" > "$TODOTMP"
 100                 echo "Added: $DATE" >> "$TODOTMP"
 101         else
 102                 echo "Subject: ..." > "$TODOTMP.empty"
 103                 echo "Added: $DATE" >> "$TODOTMP.empty"
 104                 cp "$TODOTMP.empty" "$TODOTMP"
 105
 106                 ${EDITOR:-vi} "$TODOTMP"
 107
 108                 if cmp -s "$TODOTMP" "$TODOTMP.empty"; then
 109                         rm -f "$TODOTMP" "$TODOTMP.empty"
 110                         return
 111                 fi
 112         fi
 113
 114         mv "$TODOTMP" "$ENTRY"
 115
 116         for tag in $(todo_sane_tags $TAGS) INBOX; do
 117                 [ -d "$TODODIR/$tag" ] || mkdir "$TODODIR/$tag"
 118
 119                 ln -s "../entries/$DATEHASH_1/$DATEHASH" "$TODODIR/$tag/$DATEHASH"
 120         done
 121
 122         echo "$DATEHASH"
 123 }
 124
 125 todo_tags()
 126 {
 127         ls -1d "$TODODIR"/* | sed -e "s,^$TODODIR/,," | grep -v '^entries$'
 128 }
 129
 130 todo_list_raw()
 131 {
 132         local tags="$(todo_sane_tags $TAGS $*)"
 133         local tag=
 134         if [ -n "$tags" ]; then
 135                 for tag in $tags; do
 136                         ls -1 "$TODODIR/$tag"/*
 137                 done
 138         else
 139                 ls -1 "$TODODIR/entries"/*/*
 140         fi 2> /dev/null | sed -e 's,.*/,,' | sort -u
 141 }
 142 case "$MODE" in
 143         new)    todo_new "$*" ;;
 144         tags)   todo_tags ;;
 145
 146         list_raw)       todo_list_raw "$*" ;;
 147 esac