Zipalign

#!/system/bin/sh
## This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU Library General Public License as published
# by the Free Software Foundation; either version 2, 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.
## License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>
##
## Automatic ZipAlign by Wes Garner
# ZipAlign files in /data not previously ZipAligned (using md5sum)
# Thanks to oknowton for the changes
# Changelog:
# 1.1 (12/1/09) Switched to zipalign -c 4 to check the apk instead of MD5 (oknowton)
# 1.0 (11/30/09) Original
ZA='logwrapper zipalign'
log -p i -t init:zipalign "INIT.zipalign BEGIN:automatic ZipAlign"
for apk in /data/app/*.apk ; do
    $ZA -c 4 $apk
    ZIPCHECK=$?
    if [ $ZIPCHECK -eq 1 ]; then
        log -p i -t init:zipalign "INIT.zipalign INFO:ZipAligning $(basename $apk)"
        $ZA -f 4 $apk /cache/$(basename $apk);
            if [ -e /cache/$(basename $apk) ]; then
                logwrapper cp -f -p /cache/$(basename $apk) $apk
                rm /cache/$(basename $apk);
            else
                log -p e -t init:zipalign "INIT.zipalign ERROR:ZipAligning $(basename $apk) failed"
            fi;
    else
        log -p d -t init:zipalign "INIT.zipalign DEBUG:ZipAlign already completed on $apk"
    fi;
done;
log -p i -t init:zipalign "INIT.zipalign END:automatic ZipAlign finished"