/usr/share/debdelta/debmirror-marshal-deltas is in debdelta 0.59.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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set -e
# A complex script that creates a repository of deltas, that can be
# used by debdelta-upgrade for upgrading packages.
# See also --help below.
# Copyright (C) 2006-11 Andrea Mennucci.
# License: GNU Library General Public License, version 2 or later
#since the output is automatically parsed, do it in English
unset LANG
unset LC_ALL
unset LC_NUMERIC
startgpgagent () {
gpg-agent --homedir "${GNUPGHOME}" --daemon --write-env-file "$GNUPGAGENTINFO" ;
}
DEBUG=''
VERBOSE=''
RM='rm'
MV='mv'
DO_MIRROR=true
DO_CLEAN_DELTAS=''
DO_CLEAN_DEBS=''
CONF=''
STARTAGENT=''
while [ "$1" ] ; do
case "$1" in
-h|--help)
cat <<EOF
Usage: debmirror-marshal-deltas [options] -c CONFFILE
This script keeps a full mirror of the Debian repository (using
'debmirror'), and it uses it to build a repository of deltas (using
'debdeltas').
Note that this script assumes that the current Debian
distributions are $DISTc .
It will generate deltas for the upgrades in those,
on arches $ARCHc , and sections $SECTIONc .
Options:
-v verbose (passed to debmirror and debdeltas)
-d debug (passed to debmirror and debdeltas),
also, do not 'rm' stuff, just tell
-c CONF configuration file
--no-mirror do not download debs to the local mirror
--clean-deltas clean useless deltas (see debdeltas man page)
--clean-debs clean older snapshots in deb mirror
--start-gpg-agent start gpg agent, feed the
passwd for the secret gpg key in it, then exit
EOF
exit ;;
-v) VERBOSE="$VERBOSE -v" ;;
-d) DEBUG=--debug ; RM='echo -- would rm ' ; MV='echo -- would mv ' ;;
-c) shift; CONF="$1" ;;
--no-mirror) DO_MIRROR='' ;;
--clean-deltas) DO_CLEAN_DELTAS=true ;;
--clean-debs) DO_CLEAN_DEBS=true ;;
--snapshot) echo $0 does not use its own snapshots any more ; exit ;;
--start-gpg-agent) STARTAGENT=true ;;
*) echo "$0: Unknown option $1 , try --help" ; exit 1 ;;
esac
shift
done
################## read configuration
if test "$CONF" = "" ; then
echo "please specify a configuration file"
exit 1
fi
if test ! -r "$CONF" ; then
echo "cannot read configuration file: $CONF"
exit 1
fi
. "$CONF"
#################
if test "$STARTAGENT" ; then
echo ------ start agent
startgpgagent
. "$GNUPGAGENTINFO"
export GPG_AGENT_INFO
#force loading of the private key (I know no better way)
echo ------ sign dummy file, to load the key
t=`tempfile`
echo pippo > $t
gpg2 --quiet --homedir "${GNUPGHOME}" -o /dev/null --sign $t
rm $t
exit 0
fi
#################### set gpg stuff, test it
gpgagentcmd="$0 -c $CONF --start-gpg-agent"
# set gpg-agent variables, test it
if test "$GNUPGAGENTINFO" ; then
if test ! -r "$GNUPGAGENTINFO" ; then
echo ERROR no agent info, please start the agent with
echo $gpgagentcmd
exit 1
else
. "$GNUPGAGENTINFO"
export GPG_AGENT_INFO
if test ! "${GPG_AGENT_INFO}" -o ! -e "${GPG_AGENT_INFO/:*/}" -o ! -O "${GPG_AGENT_INFO/:*/}" ; then
echo ERROR agent info is not OK, please run the command
echo $gpgagentcmd
exit 1
elif ! echo | gpg-connect-agent --homedir ${GNUPGHOME} ; then
echo ERROR agent is not responding, please run the command
echo $gpgagentcmd
exit 1
fi
fi
fi
#test that we can sign, possibly loading the password in the agent
if test "$GNUPGSEC" ; then
t=`tempfile`
echo pippo > $t
if ! gpg2 --quiet --batch --homedir "${GNUPGHOME}" -o /dev/null --default-key $GNUPGSEC --sign $t ;
then
echo signature test FAILED
rm $t
exit 1
fi
rm $t
fi
###################### some useful variables
#the lock used by debmirror
debmirlock=$debmir/Archive-Update-in-Progress-`hostname -f`
b=`basename $0`
mylockfile=${TMPDIR:-/tmp}/$b.lock
lockfile -r 10 $mylockfile || exit 1
trap "rm $VERBOSE -f $mylockfile" 0
log=/nonexistant
## profile debdeltas
#debdeltas="python -m cProfile -o /tmp/debdelta-profile-$(dirname $p | tr / _ ) $debdeltas"
today=`date +'%F'`
yyyymm=`date +'%Y-%m'`
################## routines
clean_old_deltas () {
find $deltamir/pool \
\( -name '*debdelta-fails' -or -name '*debdelta-too-big' \
-or -name '*debdelta' \) -mtime +${old_delete_days} -type f |\
xargs -r $RM $VERBOSE || true
find $deltamir/pool/ -type d -empty | xargs -r rmdir $VERBOSE || true
}
run_debmirror () {
if test -e $debmirlock ; then
echo Archive $debmir is locked
exit 1
fi
echo -n "---start mirroring at " >> $log ; date --utc >> $log
tm=`tempfile`
tme=`tempfile`
$debmirror $debmir --nosource \
$debmirror_opt --arch=$ARCHc \
--section=$SECTIONc \
-v $DEBUG -h $host -d $DISTc \
> $tm 2> $tme ; dme=$?
if test "$dme" != 0 ; then
echo debmirror failed , exit code $dme , stdout $tm
awk '{ print "> " $0 }' $tm
echo debmirror failed stderr $tme
awk '{ print "> " $0 }' $tme
$RM -f $debmirlock || true
#sometimes the temporary directory of debmirror is messed up
#rm -r $debmir/.temp
clean_old_deltas
rm $log
exit 1
else
$RM $VERBOSE $tm $tme
fi
echo -n "---end mirroring at " >> $log ; date --utc >> $log
}
findmelog () {
date=`date +'%F-%H'`
log=$deltamir/log/$yyyymm/${date}.log
if test -r $log -o -r $log.gz ; then
for i in 0 1 2 3 4 5 6 7 8 9 a b c d e f g h i j k l m n o p q r s t u v w x y z ; do
if test -r $log -o -r $log.gz ; then
log=$deltamir/log/$yyyymm/${date}.$i.log
fi
done
fi
}
created_deltas=0
run_debdeltas () {
debdeltas_errors=0
echo -n "--------- running debdeltas ------" >> $log ; date --utc >> $log ;
echo "---- options ---- $debdelta_opt " >> $log
for dist in $DISTs ; do
dist_created_deltas=0
distlog=`tempfile`
#find latest
pushd $debmir/dists/$dist/ > /dev/null
latest=$(echo [0-9] [0-9][0-9] [0-9][0-9][0-9] [0-9][0-9][0-9][0-9] \
| tr ' ' '\n' | sort -n | tail -n 1)
let prev=latest || true
while test "$prev" -gt 1 && cmp -s Release $prev/Release ; do
let prev=prev-1 || true
done
popd > /dev/null
echo -------------- $dist ---- >> $distlog
echo -n "---Release " >> $distlog ; grep ^Date $debmir/dists/$dist/Release >> $distlog
echo -n "---Start at " >> $distlog ; date --utc >> $distlog
#lenny contains debdelta 0.27, that does not understand lzma
if test "$dist" = lenny ; then x="--disable-feature lzma,xz" ;
#squeeze contains debdelta 0.39trl, that does not understand xz
elif test "$dist" = squeeze ; then x="--disable-feature xz" ; else x="" ; fi
for sec in $SECTIONs ; do for arch in $ARCHs ; do
sec_arch_dist_log=`tempfile`
sec_arch_dist_err=`tempfile`
wo="--old $debmir/dists/$dist/$prev/$sec/binary-$arch/Packages.gz"
if test "$dist" = squeeze-updates ; then
wo="$wo --old $debmir/dists/squeeze/$sec/binary-$arch/Packages.gz"
fi
OV=0 ; while test $OV -lt $prev ; do
if test -r $debmir/dists/$dist/$OV/$sec/binary-$arch/Packages.gz ; then
wo="$wo --old $debmir/dists/$dist/$OV/$sec/binary-$arch/Packages.gz"
fi
let OV=OV+10
done
echo "------ $sec $arch -- (debdelta options += $x $wo )" >> $sec_arch_dist_log
if $debdeltas $VERBOSE $debdelta_opt $x $wo --dir $deltamir// \
$debmir/dists/$dist/$sec/binary-$arch/Packages.gz >> $sec_arch_dist_log 2>> $sec_arch_dist_err ; then
#todo, only write if something happened
cat $sec_arch_dist_log >> $distlog
else
debdeltas_errors=$?
cat $sec_arch_dist_log >> $distlog
echo "--- debdeltas failed above, ret = ${debdeltas_errors}" >> $distlog
echo "--- debdeltas failed on $dist $sec $arch"
fi
if test -s "$sec_arch_dist_err" ; then
debdeltas_errors=11111 #make sure we keep this log
echo "--- debdeltas stderr " >> $distlog
cat $sec_arch_dist_err >> $distlog
echo "--- end of debdeltas stderr " >> $distlog
echo "--- debdeltas produced stderr on $dist $sec $arch"
fi
rm $sec_arch_dist_log $sec_arch_dist_err
done ; done
if grep -v '^ Total running time' $distlog | grep -v '^---' | grep -q '.' ; then
let created_deltas=created_deltas+1
dist_created_deltas=1
fi
if test "${debdeltas_errors}" -gt 0 -o "${dist_created_deltas}" -gt 0 ; then
#only log distributions stanzas when some deltas were generated, or errors occourred
cat $distlog >> $log
if test "${publish_deltas}" ; then
echo -n "--- publishing starts at " >> $log ; date --utc >> $log
if ${publish_deltas} ; then
echo -n "--- publishing ends at " >> $log ; date --utc >> $log
else
echo -n "--- publishing FAILS, at " >> $log ; date --utc >> $log
echo "--- publishing FAILS"
fi
fi
#else
# echo SKIPPED THIS STANZA ; cat $distlog
fi
rm $distlog
done
gzip -9 $log
if test "$debdeltas_errors" -gt 0 ; then
#some error occurred
echo "-----ERRORS--- full log is in $log.gz "
else
#no error occurred, clean up
if test "$created_deltas" = 0 ; then
$RM $log.gz
fi
fi
}
run_debdeltas_clean () {
echo -------------- cleanup delta pool
$debdeltas --clean-deltas -n 0 \
--dir $deltamir// \
$( for arch in $ARCHs ; do
for sec in $SECTIONs ; do
for dist in $DISTs ; do
echo $debmir/dists/$dist/$sec/binary-$arch/Packages.gz
done ; done ; done )
}
debmarshal_trim_snapshots ()
{
rectcode=1
for dist in $DISTs ; do
pushd $debmir/dists/$dist/ > /dev/null
#act only if there are at least 3 snapshots
if test -d 0 -a -d 1 -a -d 3 ; then
latest=$(echo [0-9] [0-9][0-9] [0-9][0-9][0-9] [0-9][0-9][0-9][0-9] \
| tr ' ' '\n' | sort -n | tail -n 1)
#check sanity
sane=1 ; t=0 ; f=1 ;
while test "$f" -le "$latest" ; do
if test ! -d "$f" ; then
echo "Warning, ignoring $debmir/dists/$dist , the snapshot $f does not exist"
sane=0
elif test $t -nt $f ; then
echo "Warning, ignoring $debmir/dists/$dist , the snapshot $f is older than the $t "
sane=0
fi
let f++ ; let t++ ;
done
# if sane and too many snapshots, move all down a step
if test "$sane" = 1 -a "$keep_marshal_snapshots" -a "$latest" -gt "$keep_marshal_snapshots" ; then
retcode=0
let d=latest-keep_marshal_snapshots
t=0
#remove older
while test "$t" -le "$d" -a -d "$d" ; do $RM -r $t ; let t++ ; done
#move down others
t=0
let f=d+1
while test "$f" -le "$latest" ; do
$MV $f $t
let t++
let f++
done
let t--
rm latest
ln -s $t latest
echo "------------ deleted revisions from 0 to $d in $dist (latest now points to $t)"
fi # end of " if sane and too many snapshots"
fi #end of "if at least 3 snapshots"
popd > /dev/null
done
return $retcode
}
clean_old_debs () {
if test -e $debmirlock ; then
echo Archive $debmir is locked
exit 1
fi
echo -------------- cleanup mirror
if debmarshal_trim_snapshots ; then
z=`tempfile`
${debmarshal_list_useless_debs} $debmir > $z
! grep -vx '.*\.deb' $z #(just in case)
n=$(wc -l < $z)
if test $n -lt $max_delete ; then
echo "--- delete $n debs"
tr '\n' '\000' < $z | xargs -r0 $RM
rm $z
else
echo "--- will not delete $n debs (too many!), the list is in $z"
fi
fi
}
########################################### code
if test `stat -f -c "%a" "$deltamir"` -le 512 ; then
echo "------- emergency delta pool cleanup , very low disk space in delta mirror"
run_debdeltas_clean
clean_old_deltas
elif test "${DO_CLEAN_DELTAS}" ; then
run_debdeltas_clean
clean_old_deltas
fi
if test `stat -f -c "%a" "$debmir"` -le 512 ; then
echo "------- emergency debs pool cleanup , very low disk space in debs mirror"
clean_old_debs
elif test "${DO_CLEAN_DEBS}" ; then
clean_old_debs
fi
test -d $deltamir/log/$yyyymm || mkdir $deltamir/log/$yyyymm
findmelog
if [ "${DO_MIRROR}" ] ; then
run_debmirror
else
echo ---------- skipped mirror step
fi
#the mirror was updated, so we check the difference
run_debdeltas
|