> With regards to
>
>> And maybe -b,-qq,-X and -q,-r respectively could be added by default?
>>
>>
> I would prefer not to do so: if you do you get something that is
> somehow "specialised", otherwise you have a totally generic "rezipper"
> that might also find other applications (who knows).
Yeah, but regarding -b/-X, their effect can/should be undone with zip
command line options (-l, -ll, -X). And for zip's -r option, a rezipper
that by default only rezips the top directory does not seem very useful. :-)
You're right about letting the user specify -qq/-q. Or maybe you can
have a -q/--quiet option to rezip that adds both -qq to unzip, and -q to
zip. This way you can use the openoffice profile both in quiet mode
(for git) and in non-quiet mode (for manual use).
Putting all of this together, it would make the filter look like this:
[filter "opendocument"]
clean = "rezip --quiet --zip-opts -D,-0"
smudge = "rezip --quiet --zip-opts -D,-6"
or similarly with profiles:
[filter "opendocument"]
clean = "rezip --quiet -p ODF_UNCOMPRESS"
smudge = "rezip --quiet -p ODF_COMPRESS"
After my signature you can find my attempt at making rezip more useful
as a general program. It supports --quiet, multiple input files, and -
for stdin. (And I learnt from you that >&$foo works).
> BTW, that is why I added the profiles, so that there was no need to type
> repetitive stuff.
Understood.
Paolo
-----8<-----------------------
#! /bin/sh
#
# (c) 2008 Sergio Callegari
#
# Rewrites a zip archive, possibly changing the compression level
USAGE='Usage: rezip OPTIONS FILE...
with options:
-h, --help Gives help
--unzip-opts OPTIONS Pass options to unzip helper to read zip file
--zip-opts OPTIONS Pass options to zip helper to write zip file
-p, --profile PROFILE Get options for helpers from profile
-q, --quiet Make unzip and zip quiet
Rewrites a zip archive, possibily changing the compression level.
If the archive name is unspecified or "-", then the command operates
like a filter, reading from standard input and writing to standard
output. Options (either space- or comma-separated) can be manually
provided to the unzip process doing the read and to the zip process
doing the write. Alternatively a profile can be used to set options
automatically.'
PROFILES="ODF_UNCOMPRESS ODF_COMPRESS"
PROFILE_UNZIP_ODF_UNCOMPRESS=
PROFILE_ZIP_ODF_UNCOMPRESS=-D,-0
PROFILE_UNZIP_ODF_COMPRESS=
PROFILE_ZIP_ODF_COMPRESS=-D,-6
die()
{
echo "$3$USAGE
Available profiles: ${PROFILES}" >&$1
exit $2
}
UNZIP_OPTS=""
ZIP_OPTS=""
while true ; do
case "$1" in
-h | --help)
die 1 0 ;;
# TODO: handle -p*, --profile=* and similarly for other options
-p | --profile)
eval UNZIP_OPTS=\$PROFILE_UNZIP_$2
eval ZIP_OPTS=\$PROFILE_ZIP_$2
shift ;;
--unzip-opts)
UNZIP_OPTS="${UNZIP_OPTS} $2"
shift ;;
--zip-opts)
ZIP_OPTS="${ZIP_OPTS} $2"
shift ;;
-q | --quiet)
UNZIP_QUIET=-qq
ZIP_QUIET=-q ;;
-*)
die 2 1 "Invalid option: $1
" ;;
*)
break ;;
esac
shift
done
UNZIP_OPTS="$UNZIP_QUIET -b -X `echo $UNZIP_OPTS | sed 'y/,/ /'`"
ZIP_OPTS="$ZIP_QUIET -r `echo $ZIP_OPTS | sed 'y/,/ /'`"
if [ $# = 0 ] ; then
set fnord -
shift
fi
redir=1
for filename
do
if [ "$filename" = - ]; then
redir=2
break
fi
done
for filename
do
workdir=`mktemp -d -t rezip.workdir.XXXXXX`
if [ "$filename" = - ]; then
tmpcopy=:
filename=`mktemp rezip.zip.XXXXXX`
cat > $filename
else
tmpcopy=false
fi
(case $filename in
/*) ;;
*) filename=`pwd`/$filename ;;
esac
cd "$workdir"
unzip $UNZIP_OPTS "$filename" >&$redir
zip $ZIP_OPTS "$filename" . >&$redir)
rm -fr "$workdir"
if $tmpcopy ; then
cat "$filename"
rm "$filename"
fi
done
--------8<------------------------
--
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