remove-unused-sources

   1 #!/bin/sh
   2
   3 # Copyright (C) 2008 Jonathan Moore Liles                                     #
   4 #                                                                             #
   5 # This program is free software; you can redistribute it and/or modify it     #
   6 # under the terms of the GNU General Public License as published by the       #
   7 # Free Software Foundation; either version 2 of the License, or (at your      #
   8 # option) any later version.                                                  #
   9 #                                                                             #
  10 # This program is distributed in the hope that it will be useful, but WITHOUT #
  11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or       #
  12 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for   #
  13 # more details.                                                               #
  14 #                                                                             #
  15 # You should have received a copy of the GNU General Public License along     #
  16 # with This program; see the file COPYING.  If not,write to the Free Software #
  17 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  #
  18
  19 ## remove-unused-sources
  20 #
  21 # April 2008, Jonathan Moore Liles
  22 #
  23 # Simple script to scan a compacted Non-DAW project and remove all
  24 # unused sources from disk.
  25 #
  26 # USAGE:
  27 #
  28 #     $ remove-unused-sources ~/audio/'The Best Song Ever'
  29 #
  30 # NOTES:
  31 #
  32 #     This script will not ask for comfirmation! It will ruthlessly
  33 #     delete all unused sources! You have been warned.
  34 #
  35
  36 DRY_RUN=
  37 ONLY_COMPACTED=
  38 MOVE=1
  39
  40 fatal ()
  41 {
  42     echo Error: "$1"
  43     echo 'Aborting!'
  44     cleanup
  45     exit 1
  46 }
  47
  48 cleanup ()
  49 {
  50     rm -f "${TEMP}/all-sources" "${TEMP}/used-sources"
  51 }
  52
  53 set_diff ()
  54 {
  55     diff --new-line-format '' --old-line-format '%L' --unchanged-line-format '' "$1" "$2"
  56 }
  57
  58 remove_sources ()
  59 {
  60     local TOTAL=0
  61     local FILE
  62     local SIZE
  63     local PSIZE
  64     while read FILE
  65     do
  66
  67         PSIZE=`stat -c '%s' "${FILE}.peak" 2>/dev/null`
  68         SIZE=`stat -c '%s' "${FILE}" 2>/dev/null`
  69
  70         PSIZE=${PSIZE:-0}
  71
  72         if ! [ -f "${FILE}" ]
  73         then
  74             echo "Would remove \"${FILE}\", if it existed."
  75         else
  76             if [ "$DRY_RUN" = 1 ]
  77             then
  78                 echo "Would remove: ${FILE}"
  79             else
  80                 if [ "$MOVE" = 1 ]
  81                 then
  82                     echo "Moving unused source \"${FILE}\"..."
  83                     mv -f ./"${FILE}" ./"${FILE}".peak ../unused-sources
  84                 else
  85                     echo "Removing unused source \"${FILE}\"..."
  86                     rm -f ./"${FILE}" ./"${FILE}".peak
  87                 fi
  88             fi
  89
  90             TOTAL=$(( $TOTAL + $SIZE + $PSIZE ))
  91         fi
  92
  93     done
  94
  95     echo "...Freeing a total of $(($TOTAL / ( 1024 * 1024 ) ))MB"
  96 }
  97
  98 usage ()
  99 {
 100     fatal "Usage: $0 [-n] [-c] [-m|-d] path/to/project"
 101 }
 102
 103
 104 while getopts "dmnc" o
 105 do
 106     case "$o" in
 107         d) MOVE= ;;
 108         m) MOVE=1 ;;
 109         n) DRY_RUN=1 ;;
 110         c) ONLY_COMPACTED=1 ;;
 111         \?) usage ;;
 112         *) echo "$o" && usage ;;
 113     esac
 114 done
 115
 116 shift $(( $OPTIND - 1 ))
 117 PROJECT="$1"
 118
 119 [ $# -eq 1 ] || usage
 120
 121 cd "$PROJECT" || fatal "No such project"
 122
 123 [ -f history ] && [ -f info ] || fatal "Not a Non-DAW project?"
 124
 125 [ -f .lock ] && fatal "Project appears to be in use"
 126
 127 if [ "$ONLY_COMPACTED" = 1 ]
 128 then
 129     grep -v '\(^\{\|\}$\)\|create' history && fatal "Not a compacted project"
 130 fi
 131
 132 echo "Scanning \"${PROJECT}\"..."
 133
 134 sed -n 's/^\s*Audio_Region.* :source "\([^"]\+\)".*$/\1/p' history | sort | uniq > "${TEMP}/used-sources"
 135
 136 cd sources || fatal "Can't change to source directory"
 137
 138 [ "$MOVE" = 1 ] && mkdir ../unused-sources 2>/dev/null
 139
 140 ls -1 | grep -v '\.peak$' | sort > "${TEMP}/all-sources"
 141
 142 set_diff "${TEMP}/all-sources" "${TEMP}/used-sources" | remove_sources
 143
 144 cleanup
 145
 146 echo "Done."