non/remove-unused-sources

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#!/bin/sh
# Copyright (C) 2008 Jonathan Moore Liles #
# #
# This program is free software; you can redistribute it and/or modify it #
# under the terms of the GNU General Public License as published by the #
# Free Software Foundation; either version 2 of the License, or (at your #
# option) any later version. #
# #
# This program is distributed in the hope that it will be useful, but WITHOUT #
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
# more details. #
# #
# You should have received a copy of the GNU General Public License along #
# with This program; see the file COPYING. If not,write to the Free Software #
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. #
## remove-unused-sources
#
# April 2008, Jonathan Moore Liles
#
# Simple script to scan a compacted Non-DAW project and remove all
# unused sources from disk.
#
# USAGE:
#
# $ remove-unused-sources ~/audio/'The Best Song Ever'
#
# NOTES:
#
# This script will not ask for comfirmation! It will ruthlessly
# delete all unused sources! You have been warned.
#
DRY_RUN=no
ONLY_COMPACTED=no
fatal ()
{
echo Error: "$1"
echo 'Aborting!'
cleanup
exit 1
}
cleanup ()
{
rm -f "${TEMP}/all-sources" "${TEMP}/used-sources"
}
set_diff ()
{
diff --new-line-format '' --old-line-format '%L' --unchanged-line-format '' "$1" "$2"
}
remove_sources ()
{
local FILE
while read FILE
do
if [ $DRY_RUN = yes ]
then
echo "Would remove: ${FILE}"
else
echo "Removing unused source \"${FILE}\"..."
rm -f ./"${FILE}" ./"${FILE}-"*.peak
fi
done
}
[ $# -gt 0 ] || fatal "Usage: $0 [--dry-run] path/to/project"
if [ "$1" = --dry-run ]
then
DRY_RUN=yes
shift 1
fi
PROJECT="$1"
cd "$PROJECT" || fatal "No such project"
[ -f history ] && [ -f info ] || fatal "Not a Non-DAW project?"
[ -f .lock ] && fatal "Project appears to be in use"
if [ $ONLY_COMPACTED = yes ]
then
grep -v '\(^\{\|\}$\)\|create' history && fatal "Not a compacted project"
fi
echo "Scanning \"${PROJECT}\"..."
sed -n 's/^\s\+Audio_Region.* :source "\([^"]\+\)".*$/\1/p' history | sort | uniq > "${TEMP}/used-sources"
cd sources || fatal "Can't change to source directory"
ls -1 | grep -v '\.peak$' | sort > "${TEMP}/all-sources"
set_diff "${TEMP}/all-sources" "${TEMP}/used-sources" | remove_sources
cleanup
echo "Done."