111 lines
2.9 KiB
Bash
111 lines
2.9 KiB
Bash
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#!/bin/sh
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#
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# openmamba ISO RPM differences report creator
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# Copyright (c) 2010 by Silvan Calarco <silvan.calarco@mambasoft.it>
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#
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TMPDIR=/tmp/isodiff
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function create_count_files() {
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local F=$1
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SIZE=0
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rpm -r $TMPDIR/$F -qa --queryformat "%{NAME} %{SIZE}\n" | sort > $TMPDIR/$F-rpm.txt
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> $TMPDIR/$F-rpm-size.txt
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while read line; do
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set -- $line
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SIZE=`expr $SIZE + $2`
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echo "$1 $SIZE" >> $TMPDIR/$F-rpm-size.txt
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done < $TMPDIR/$F-rpm.txt
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echo "Total size: $SIZE"
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}
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ISOFROM=$1
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ISOTO=$2
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[ "$ISOFROM" -a "$ISOTO" ] || {
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echo "Usage: $0 from.iso to.iso"
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exit 1
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}
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[ -e "$ISOFROM" ] || {
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echo "Error: file $ISOFROM does not exist; aborting."
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exit 1
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}
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[ -e "$ISOTO" ] || {
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echo "Error: file $ISOTO does not exist; aborting."
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exit 1
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}
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umount $TMPDIR/from 2>/dev/null
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umount $TMPDIR/to 2>/dev/null
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umount $TMPDIR/isofrom 2>/dev/null
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umount $TMPDIR/isoto 2>/dev/null
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mkdir -p $TMPDIR/{isofrom,isoto,from,to}
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mount -o loop $ISOFROM $TMPDIR/isofrom || {
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echo "Error: cannot mount $ISOFROM; aborting."
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exit 1
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}
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mount -o loop $ISOTO $TMPDIR/isoto || {
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echo "Error: cannot mount $ISOTO; aborting."
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umount $TMPDIR/isofrom
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exit 1
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}
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mount -o loop $TMPDIR/isofrom/rootfs.compressed $TMPDIR/from || {
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echo "Error: cannot mount compressed fs inside $ISOFROM; aborting."
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umount $TMPDIR/isofrom
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umount $TMPDIR/isoto
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exit 1
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}
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mount -o loop $TMPDIR/isoto/rootfs.compressed $TMPDIR/to || {
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echo "Error: cannot mount compressed fs inside $ISOTO; aborting."
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umount $TMPDIR/from
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umount $TMPDIR/isofrom
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umount $TMPDIR/isoto
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exit 1
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}
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create_count_files from
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create_count_files to
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> $TMPDIR/diff.txt
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while read line; do
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set -- $line
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pkgname=$1
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fromsize=$2
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lineto=`grep "^$pkgname " $TMPDIR/to-rpm.txt 2>/dev/null`
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[ "$lineto" ] && {
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set -- $lineto
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tosize=$2
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} || tosize=0
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diffsize=`expr $tosize - $fromsize`
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[ $diffsize -ne 0 ] && {
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percsize=`echo "scale=2; $diffsize * 100 / $fromsize" | bc` || percsize=0
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echo -e "$pkgname ${tosize} ${fromsize} ${diffsize} ${percsize}" >> $TMPDIR/diff.txt
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}
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done < $TMPDIR/from-rpm.txt
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while read line; do
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set -- $line
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pkgname=$1
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tosize=$2
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linefrom=`grep "^$pkgname " $TMPDIR/from-rpm.txt 2>/dev/null`
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[ "$linefrom" ] && continue
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echo -e "$pkgname $tosize 0 $tosize 100" >> $TMPDIR/diff.txt
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done < $TMPDIR/to-rpm.txt
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echo -e "Package\r\t\t\t\t\t N Diff (bytes)" > $TMPDIR/diff-growth.txt
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echo "------------------------------------------------------------------------------------" >> $TMPDIR/diff-growth.txt
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incr=0
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cat $TMPDIR/diff.txt | sort -n -k 4 -r | while read line; do
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set -- $line
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[ ${3} -eq 0 ] && new="*" || new=" "
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incr=`expr $incr + ${4}`
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echo -e "$1\r\t\t\t\t\t ${new} ${4}\r\t\t\t\t\t\t\t (${5}%)\r\t\t\t\t\t\t\t\t\t $incr" >> $TMPDIR/diff-growth.txt
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done
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umount $TMPDIR/from
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umount $TMPDIR/to
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umount $TMPDIR/isofrom
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umount $TMPDIR/isoto
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exit 0
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