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perl-cleaner
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2005-10-13
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9KB
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#!/bin/bash
# sort of a changelog if you want to call it that...
# version 1.2 - swtaylor gave some good pointers on making the tmp files, as well as reminding me of grep's -f functionality :)
# version 1.1 - Mr. Bones gave a lot of good input on cleaning up the script
# Version 1 - stuff
# First and foremost - make sure we have a perl to work with...
PERL=$(which perl)
if [ "${PERL}x" == "x" ]; then
echo "NO PERL INSTALLED!! (at least not in your path)"
exit
fi
eval $(perl '-V:version')
PERL_VERSION=${version}
TMPDIR=${TMPDIR:-/tmp}
PKGDIR=$(/usr/bin/portageq vdb_path)
DATESTAMP=$(date +"%Y%m%d%H%M%S")
LOG=$(mktemp ${TMPDIR}/perl-cleaner.log.$DATESTAMP.XXXXXXXXXX)
PAGER=${PAGER:-more}
# Set up our temporary files
MODULES_LIST=$(mktemp ${TMPDIR}/modules.list.XXXXXXXXXX)
EBUILDS_PREINSTALL=$(mktemp ${TMPDIR}/ebuilds.preinstall.XXXXXXXXXX)
EBUILDS_ORDERED=$(mktemp ${TMPDIR}/ebuilds.ordered.XXXXXXXXXX)
EBUILDS_REINSTALL=$(mktemp ${TMPDIR}/ebuilds.reinstall.XXXXXXXXXX)
ASK=""
if [ ! -z $2 ]; then
ASK="--ask"
fi
function postclean {
for FILE in ${MODULES_LIST} ${EBUILDS_PREINSTALL} ${EBUILDS_ORDERED} ${EBUILDS_REINSTALL}; do
if [ -f $FILE ]; then
rm -f $FILE
fi
done
if [ -s $LOG ]; then
echo
echo "For a complete log, please read $LOG"
echo
else
if [ -f $LOG ]; then
rm -f $LOG
fi
fi
}
# This is to clean out the old .ph files generated in our last perl install
function ph_clean() {
echo "$(date) : Beginning a clean up of .ph files" | tee -a $LOG
INC=$(perl -e 'for $line (@INC) { next if $line eq "."; next if $line =~ m/'${PERL_VERSION}'/; print "$line\n" }')
echo "Locating ph files for removal"
for DIR in $INC; do
if [ -d $DIR ]; then
for file in $(find $DIR -name "*.ph" -type f); do
if [ ! $(echo "$file"|grep $PERL_VERSION) ]; then
echo "$(date) : Removing old ph file: $file" | tee -a $LOG
rm $file
fi
done
fi
done
for DIR in $INC; do
for empty in $(find $DIR -type d); do
# Silently remove those dirs that we just emptied
rmdir $empty >/dev/null 2>&1
done
done
}
# Generate ph files; this is useful if we've upgraded packages with headers so that perl knows the new info
function ph_update() {
echo "$(date) : Updating ph files" | tee -a $LOG
cd /usr/include; h2ph * sys/* arpa/* netinet/* bits/* security/* asm/* gnu/* linux/* | tee -a $LOG
cd /usr/include/linux; h2ph * | tee -a $LOG
}
# Build a list of modules installed under older perls - only valid if the module was an ebuild :)
function module_list() {
# Reset INC - INC is dynamically generated, and if we removed any ph
# files - and they were the only thing left in a dir - then there's
# no sense in revisiting that dir
echo "$(date) : Building list of modules for reinstall" | tee -a $LOG
INC=$(perl -e 'for $line (@INC) { next if $line eq "."; next if $line =~ m/'${PERL_VERSION}'/; print "$line\n" }')
MODFIND=$(mktemp ${TMPDIR}/modules.found.XXXXXXXXXX)
echo "Locating modules for reinstall"
for DIR in $INC; do
if [ -d $DIR ]; then
for file in $(find $DIR -iname "*.pm" -type f|grep -v "${PERL_VERSION}"); do
echo "$file" >>$MODFIND
done
fi
done
grep -f $MODFIND -l $PKGDIR/*/*/CONTENTS >${MODULES_LIST}
rm $MODFIND
}
# The meat of it - rebuilding the ebuilds
# ALL emerges are oneshots - we don't want to mess with the world file
# We first attempt to emerge the specific module that was installed last time
# If that fails, we attempt to install a newer version
function ebuild_rebuild() {
echo "$(date) : Rebuilding modules: Building list of ebuilds" | tee -a $LOG
if [ -s ${MODULES_LIST} ]; then
for line in $(sort -u ${MODULES_LIST}); do
echo "$line"|sed -e 's|.*pkg/||' -e 's|/CONTENTS||'|grep -v "dev-lang/perl" >>${EBUILDS_PREINSTALL}
done
fi
# If they asked for interactive, let them see what will be reinstalled
if [ -s ${EBUILDS_PREINSTALL} ]; then
if [ ! -z $ASK ]; then
echo "Press Enter to see the list of ebuilds we'll be avaluating"
read key
$PAGER ${EBUILDS_PREINSTALL}
printf "Continue? (Y/N) "
read ANSWER
if [ $(echo "${ANSWER}" | egrep -e "^n|N" ) ]; then
echo "$(date) : USER ABORTED REBUILD">>$LOG
exit
fi
fi
for EBUILD in $(cat ${EBUILDS_PREINSTALL} ); do
if emerge --oneshot -p "=$EBUILD"|egrep -q ".*ebuilds.*satisfy"; then
if emerge --oneshot -p ">=$EBUILD"|egrep -q ".*ebuilds.*satisfy"; then
echo "$(date) : There are no unmasked ebuilds to satisfy $EBUILD. Skipping" | tee -a $LOG
sleep 2
else
if [ ! -z $ASK ]; then
printf "${EBUILD} isn't available, but a new version is. Install? (Y/N) "
read ANSWER
if [ $(echo "${ANSWER}" | egrep -e "^y|Y" ) ]; then
echo ">=$EBUILD" >> ${EBUILDS_ORDERED}
echo "$(date) : User chose to install >=${EBUILD}">>$LOG
fi
else
echo ">=$EBUILD" >>${EBUILDS_ORDERED}
fi
fi
else
echo "=$EBUILD">>${EBUILDS_ORDERED}
fi
done
if [ -s ${EBUILDS_ORDERED} ]; then
if [ ! -z $ASK ]; then
echo "Press Enter to see the final list of ebuilds to install"
read key
$PAGER ${EBUILDS_ORDERED}
printf "Continue? (Y/N) "
read ANSWER
if [ $(echo "${ANSWER}" | egrep -e "^n|N" ) ]; then
echo "$(date) : USER ABORTED REBUILD">>$LOG
exit
fi
fi
# Cut down to one line so portage can handle ordering these appropriately
emerge -p --oneshot $(cat ${EBUILDS_ORDERED} ) | grep ebuild | sed -e 's:\([^ ]\+\):=\1:g' -e 's:.*\] \([^ ]*\) .*:\1:'>>${EBUILDS_REINSTALL}
echo "Reinstalling ebuilds"
echo "$(date) : Ebuilds to reinstall: ">>$LOG
cat ${EBUILDS_REINSTALL}>>$LOG
echo >>$LOG
# Now that we have them in the right order, emerge them one at a time
# This is to avoid problems if one doesn't emerge correctly
for EBUILD in $(cat ${EBUILDS_REINSTALL}); do
emerge --oneshot ${ASK} "$EBUILD"
done
else
echo
echo "Nothing to reinstall!"
echo
fi
else
echo
echo "Nothing to reinstall!"
echo
fi
}
# Locate .so's and binaries linked against libperl.so
# The coup is in ! -newer libperl.so - cut out anything that was obviously installed
# after our last install of libperl, which should cut out the false positives.
function libperl_list() {
echo "$(date) : Locating ebuilds linked against libperl" | tee -a $LOG
for i in $(find $(egrep -v ^# /etc/ld.so.conf) -type f -name '*.so*' ! -newer /usr/lib/libperl.so ) \
$(find $(echo $PATH | sed 's/:/ /g') -type f -perm +0111 ! -newer /usr/lib/libperl.so ) ;
do
if [ -f ${i} ]; then
ldd ${i} 2>&1 | grep "libperl" - >/dev/null && grep -l $i $PKGDIR/*/*/CONTENTS>>${MODULES_LIST};
fi
done
}
# Assuming a successful module run, look to see whats left over
function leftovers() {
echo "$(date) : Finding left over modules" | tee -a $LOG
echo "$(date) : The following files remain. These were either installed by hand" | tee -a $LOG
echo "$(date) : or edited. This script cannot deal with them." | tee -a $LOG
echo | tee -a $LOG
INC=$(perl -e 'for $line (@INC) { next if $line eq "."; next if $line =~ m/'${PERL_VERSION}'/; print "$line\n" }')
for DIR in $INC; do
if [ -d $DIR ]; then
for file in $(find $DIR -type f |grep -v "${PERL_VERSION}" ) ; do
echo "$(date) : ${file}" | tee -a $LOG
done
fi
done
}
case "$1" in
leftovers)
leftovers
;;
allmodules)
PERL_VERSION="0.0.0"
module_list
ebuild_rebuild
leftovers
;;
modules)
module_list
ebuild_rebuild
leftovers
;;
libperl)
libperl_list
ebuild_rebuild
;;
ph-clean)
ph_clean
;;
phupdate)
ph_update
;;
phall)
ph_clean
ph_update
;;
all)
ph_clean
ph_update
module_list
libperl_list
ebuild_rebuild
leftovers
;;
reallyall)
PERL_VERSION="0.0.0"
ph_clean
ph_update
module_list
libperl_list
ebuild_rebuild
leftovers
;;
*)
echo "Usage: $0 [options] [ask]"
printf "\tmodules - rebuild perl modules for old installs of perl\n"
printf "\tallmodules - rebuild perl modules for any install of perl\n"
printf "\tlibperl - rebuild anything linked against libperl\n"
printf "\tph-clean - clean out old ph files from a previous perl\n"
printf "\tphupdate - update existing ph files, useful after an upgrade to system parts like the kernel\n"
printf "\tphall - clean out old ph files and run phupdate\n"
printf "\tall - rebuild modules, libperl linkages, clean ph files, and rebuild them\n"
printf "\treallyall - rebuild modules for any install of perl, libperl linkages, clean ph files, and rebuild them\n"
printf "\n"
printf "\task - ask for confirmation on each emerge"
printf "\n\n"
;;
esac
postclean
exit