Slow and insecure but feature-rich pacman wrapper in bash

Question

This project of mine started because I want to compile my packages in a way that lets me delete gnome apps. Here's the problem: I see that evince depends on gnome-keyring, gnome-keyring depends on gconf and alltray depends on gconf. This leads me to think that if I recompile evince to not use gnome-keyring and recompile alltray to not use gconf, I can delete gconf.
NO!
I have to recompile evince to not use gconf as well because little do I know from pacman's dependency handling... gconf is a direct (but second level) dependency of evince as it's compiled as well.
This is a pretty standard problem. It's the reason why debian dependency lists are so damn long. I don't want Arch to move to a system like that... well sort of. Here's what I did. I made a script that acts just like pacman but when you tell it to download and install a package, it tells pacman to only download that package into a separate cache, then it extracts the package, finds all dynamic executables in the package, uses ldd to determine their library dependencies, uses pacman -Qo to find packages that own these dependencies (and caches them in a file so they can be looked up more quickly in the future), applies some other enhancements that should be visible in the script, then adds the new dependencies to the depends array and makes sure that none are duplicated. It also formats the array so that it goes (original clean dependency list) kernel26 (new list). That way it can parse queries as well so -Qi will omit all the dependencies after kernel26 and the Required By section while -Qii shows everything. This is the perfect compromise for me. Not sure if it will be for you.
Other things it does:
* Checks if AUR packages need updating (but doesn't update them)
* Takes out docs and gconf schemas
* Cleans up man pages so there's no /usr/man and just /usr/share/man/man*
* Convers /usr/share/man/locale/man1/whatever.1.gz to /usr/share/man/man1/whatever-locale.1.gz
* Converts info pages to man pages with info2man and puts them in man9
* Gzips all man pages
* Allows replacing packages with -U
* Package specific stuff like disabling the firefox error console.
Regretably I had to make it play around with the md5sums. This essentially makes them useless but if I don't do this reinstalling a package that is in the main cache because this script put it there fails due to corruption. So you might want to get rid of this "feature" and probably the firefox / uvesafb /gstreamer / info2man stuff but this is cool so tell me what you think of it.
#!/bin/bash
function aur_check {
STARTDIR=`pwd`
cd /var/cache/pacman
for r in `pacman -Qmq`; do
wget "http://aur.archlinux.org/packages/$r/$r/PKGBUILD" >/dev/null 2>&1
if [ $? -eq 0 ]; then
LOCAL_VERSION_REL=`'pacman' -Q $r | awk '{print $2}'`
LOCAL_VERSION=`echo $LOCAL_VERSION_REL| sed -e 's/-.*//g'`
REMOTE_VERSION=`cat PKGBUILD | grep -E '^pkgver=' | sed -e 's/pkgver=//g' | sed -e 's/[ ]*//g'`
REMOTE_REL=`cat PKGBUILD | grep -E '^pkgrel=' | sed -e 's/pkgrel=//g'`
if [[ "$LOCAL_VERSION" < "$REMOTE_VERSION" ]]; then
printf "warning: $r: ignoring package upgrade ($LOCAL_VERSION_REL => ${REMOTE_VERSION}-${REMOTE_REL})\n"
fi
rm PKGBUILD
fi
done
cd $STARTDIR
function sync_check {
STARTDIR=`pwd`
cd /var/cache/pacman
IGNORED_PACKAGES=`cat /etc/pacman.conf | grep -E '^IgnorePkg' | sed -e 's/IgnorePkg[ ]*=[ ]*//g'`
for s in $IGNORED_PACKAGES; do
REMOTE_VERSION_STRING=`'pacman' -Si $s 2>/dev/null | grep -E '^Version'`
if [ $? -eq 0 ]; then
REMOTE_VERSION_REL=`echo $REMOTE_VERSION_STRING | awk '{print $3}'`
LOCAL_VERSION_STRING=`'pacman' -Q $s 2>/dev/null`
if [ $? -eq 0 ]; then
LOCAL_VERSION_REL=`echo $LOCAL_VERSION_STRING | awk '{print $2}'`
printf "warning: $s: ignoring package upgrade ($LOCAL_VERSION_REL => $REMOTE_VERSION_REL)\n"
fi
fi
done
cd $STARTDIR
function remove_crap {
# No docs or schemas.
rm -rf 2>/dev/null ./usr/share/doc
rm -rf 2>/dev/null ./usr/share/gtk-doc
rm -rf 2>/dev/null ./etc/gconf
# Please delete this file. It is not necessary for linking the library.
find . -name "*.la" -exec rm {} \;
# Only one man directory please.
if [ -d ./usr/man ]; then
if [ ! -d ./usr/share ]; then
mkdir ./usr/share
fi
mv ./usr/man ./usr/share/man
fi
if [ -d ./usr/share/man ]; then
cd ./usr/share/man
ls | grep 'cat' | xargs rm -rf
if [ -d ./man ]; then
mv ./man/* .
rm -rf ./man
fi
# Imposes what I consider to be a better naming convention for some reason.
for t in `ls`; do
if [ $t != 'man0' ] && [ $t != 'man1' ] && [ $t != 'man2' ] && [ $t != 'man3' ] && [ $t != 'man4' ] && [ $t != 'man5' ] && [ $t != 'man6' ] && [ $t != 'man7' ] && [ $t != 'man8' ] && [ $t != 'man9' ] && [ $t != 'mann' ] && [ $t != 'manm' ]; then
cd $t
for u in `ls`; do
cd $u
for v in `ls`; do
SECOND_LAST_EXTENSION=`echo $v | sed -e 's/\.gz$//g' | rev | sed -e 's/\..*//g' | rev`
PREFIX=`echo $v | sed -e 's/\.gz$//g' | sed -e "s/\.${SECOND_LAST_EXTENSION}//g"`
SUFFIX=`echo $v | sed -e "s/$PREFIX//g"`
if [ ! -h $v ]; then
install -D $v ../../${u}/${PREFIX}-${t}${SUFFIX}
else
TARGET=`readlink $v`
TARGET_SECOND_LAST_EXTENSION=`echo $TARGET | sed -e 's/\.gz$//g' | rev | sed -e 's/\..*//g' | rev`
TARGET_PREFIX=`echo $TARGET | sed -e 's/\.gz$//g' | sed -e "s/\.${TARGET_SECOND_LAST_EXTENSION}//g"`
TARGET_SUFFIX=`echo $TARGET | sed -e "s/${TARGET_PREFIX}//g"`
install -d ../../${u}
ln -s ${TARGET_PREFIX}-${t}${TARGET_SUFFIX} ../../${u}/${PREFIX}-${t}${SUFFIX}
fi
done
cd ..
done
cd ..
rm -rf $t
fi
done
# Now that it is nicely organized we can gzip everything and add symlinks.
for x in `ls`; do
cd $x
for y in `ls`; do
echo $y | grep -q -E '\.gz$'
if [ $? -ne 0 ]; then
gzip $y >/dev/null 2>&1
SECOND_LAST_EXTENSION=`echo $y | rev | sed -e 's/\..*//g' | rev`
PREFIX=`echo $y | sed -e "s/\.${SECOND_LAST_EXTENSION}//g"`
NEW_NAME=`echo $PREFIX | sed -e 's/\./-/g'`
if [ $NEW_NAME != $PREFIX ]; then
ln -s ${y}.gz ${NEW_NAME}.${SECOND_LAST_EXTENSION}.gz
fi
else
SECOND_LAST_EXTENSION=`echo $y | sed -e 's/\.gz$//g' | rev | sed -e 's/\..*//g' | rev`
PREFIX=`echo $y | sed -e 's/\.gz//g' | sed -e "s/\.${SECOND_LAST_EXTENSION}//g"`
NEW_NAME=`echo $PREFIX | sed -e 's/\./-/g'`
if [ $NEW_NAME != $PREFIX ]; then
ln -s ${y} ${NEW_NAME}.${SECOND_LAST_EXTENSION}.gz
fi
fi
done
cd ..
done
cd ../../..
fi
# Converts info pages to man pages in the man9 directory
if [ -d ./usr/share/info ]; then
if [ -d ./usr/share/man ]; then
mkdir ./usr/share/man/man9
else
mkdir ./usr/share/man
mkdir ./usr/share/man/man9
fi
cd ./usr/share/info
for z in `ls`; do
echo $z | grep -q -E '\.gz$'
if [ $? -eq 0 ]; then
NAME=`echo $z | sed -e 's/\.gz$//g'`
NEWNAME=`echo $NAME | sed -e 's/\./-/g'`
gunzip $z
info2man $NAME > ../man/man9/${NEWNAME}
gzip ../man/man9/${NEWNAME} >/dev/null 2>&1
else
NEWNAME=`echo $z | sed -e 's/\./-/g'`
info2man $z > ../man/man9/${NEWNAME}
gzip ../man/man9/${NEWNAME} >/dev/null 2>&1
fi
done
cd ../../..
rm -rf ./usr/share/info
fi
function install_with_u {
ULTIMATE_ANSWER="y"
# Checks if there are package conflicts
CONFLICTS=`cat .PKGINFO | grep 'conflict = ' | awk '{print $3}'`
ACTUAL_CONFLICTS=""
for p in $CONFLICTS; do
VERSION_CHECK=0
CONFLICTING_PACKAGE=`echo $p | sed -r 's/(>|=|<).*//g'`
# Checks if these conflicts actually affect packages on the system
'pacman' -Q $CONFLICTING_PACKAGE >/dev/null 2>&1
if [ $? -eq 0 ]; then
AFFECTED=1
if [ ${#p} -gt ${#CONFLICTING_PACKAGE} ]; then
AFFECTED=0
# If a version is specified, finds it out and sees if we're affected
CONFLICTING_VERSION_STRING=${p:${#CONFLICTING_PACKAGE}:${#p}-${#CONFLICTING_PACKAGE}}
RELATION=${CONFLICTING_VERSION_STRING:1:2}
if [ "$RELATION" = "=" ]; then
RELATION=${CONFLICTING_VERSION_STRING:0:1}${RELATION}
CONFLICTING_VERSION=${CONFLICTING_VERSION_STRING:2:${#CONFLICTING_VERSION_STRING}-2}
else
RELATION=${CONFLICTING_VERSION_STRING:0:1}
CONFLICTING_VERSION=${CONFLICTING_VERSION_STRING:1:${#CONFLICTING_VERSION_STRING}-1}
fi
ACTUAL_VERSION=`pacman -Q $CONFLICTING_PACKAGE | awk '{print $2}'`
if [ "$RELATION" = ">" ]; then
if [[ "$ACTUAL_VERSION" > "$CONFLICTING_VERSION" ]]; then
AFFECTED=1
fi
elif [ "$RELATION" = "<" ]; then
if [[ "$ACTUAL_VERSION" < "$CONFLICTING_VERSION" ]]; then
AFFECTED=1
fi
elif [ "$RELATION" = ">=" ]; then
if [ "$ACTUAL_VERSION" >= "$CONFLICTING_VERSION" ]; then
AFFECTED=1
fi
elif [ "$RELATION" = "<=" ]; then
if [ "$ACTUAL_VERSION" <= "$CONFLICTING_VERSION" ]; then
AFFECTED=1
fi
else
if [ "$ACTUAL_VERSION" = "$CONFLICTING_VERSION" ]; then
AFFECTED=1
fi
fi
fi
if [ $AFFECTED -ne 0 ]; then
ACTUAL_CONFLICTS="$ACTUAL_CONFLICTS $CONFLICTING_PACKAGE"
printf ":: ${1} conflicts with ${CONFLICTING_PACKAGE}. Remove ${CONFLICTING_PACKAGE}? [Y/n] "
read ANSWER
if [ $ANSWER != "Y" ] && [ $ANSWER != "y" ]; then
ULTIMATE_ANSWER="n"
break
fi
fi
fi
done
if [ $ULTIMATE_ANSWER = "y" ]; then
for q in $ACTUAL_CONFLICTS; do
'pacman' -Rd ${q}
done
return 0
fi
return 1
function get_deps {
PACKAGE_NAME=`cat .PKGINFO | grep 'pkgname = ' | sed -e 's/pkgname = //g'`
# Does a few package specific things
if [ $PACKAGE_NAME = "kernel26" ]; then
ln -s /etc/uvesafb.conf /etc/uvesafb
elif [ $PACKAGE_NAME = "firefox" ]; then
cd ./usr/lib
FIREFOX_DIR=`ls | grep 'firefox'`
if [ $? -eq 0 ]; then
cd $FIREFOX_DIR/chrome
jar -xf ./browser.jar
rm ./browser.jar
sed -i -e '/console.xul/s/^/\/\//g' ./content/browser/browser.js
jar -cf browser.jar content
rm -r content
cd ../..
fi
cd ../..
elif [ $PACKAGE_NAME = "gstreamer0.10-good-plugins" ]; then
rm ./usr/lib/gstreamer0.10/libgstesd.so
fi
POSSIBLE_LIBS=`find . -type f | grep -E '(\.so\.|\.so$)'`
POSSIBLE_BINS=`find . -type f | grep -v 'PKGINFO' | grep -v -E '\/.*\.[a-zA-Z0-9]+$' | grep -v 'LICENSE'`
POSSIBLE_ELFS="$POSSIBLE_LIBS $POSSIBLE_BINS"
DEPS=""
# Makes a list of all the direct dependencies
for i in $POSSIBLE_ELFS; do
#echo "SCANNING: $i"
ldd $i >/dev/null 2>&1
if [ $? -eq 0 ]; then
# Caches the shared libraries in a file to make it easier for everything else to look them up
DIRNAME=`dirname ${i:1:${#i}}`
echo "$i" | grep -q ".so"
if [ $? -eq 0 ]; then
if [ "$DIRNAME" = "/lib" ] || [ "$DIRNAME" = "/usr/lib" ]; then
grep -q "${i:1:${#i}} $PACKAGE_NAME" /var/cache/pacman/quicklookup
# If this package's library assigned to this package was not found...
if [ $? -ne 0 ]; then
grep -q "${i:1:${#i}}" /var/cache/pacman/quicklookup
# It may have been assigned to another package so we change that
if [ $? -eq 0 ]; then
sed -i -e "/${i:1:${#i}}/d" /var/cache/pacman/quicklookup
fi
# Otherwise we just assign it to this package
echo "${i:1:${#i}} $PACKAGE_NAME" >> /var/cache/pacman/quicklookup
fi
fi
fi
# Figures out what packages own the library dependencies
POSSIBLE_DEPS=`ldd $i 2>/dev/null | grep '=> ' | grep -v '=> ' | sed -e 's/.* => //g' | sed -e 's/ (.*//g'`
for j in $POSSIBLE_DEPS; do
DIRNAME=`dirname $j`
if [ "$DIRNAME" = "/lib" ] || [ "$DIRNAME" = "/usr/lib" ]; then
OWNER=`grep "$j" /var/cache/pacman/quicklookup`
# The owner of the dep is either already in the quicklookup file
if [ $? -eq 0 ]; then
OWNER=`echo $OWNER | awk '{print $2}'`
DEPS="$DEPS $OWNER"
else
# Or it's part of the current package
BASENAME=`basename $j`
find . -name ${BASENAME} | grep -q "${BASENAME}"
if [ $? -eq 0 ]; then
echo "$j $PACKAGE_NAME" >> /var/cache/pacman/quicklookup
else
# Or we figure out its owner with pacman and put it in the quicklookup file
OWNER=`'pacman' -Qoq $j 2>/dev/null`
if [ $? -eq 0 ]; then
echo "$j $OWNER" >> /var/cache/pacman/quicklookup
DEPS="$DEPS $OWNER"
fi
fi
fi
fi
done
fi
done
# Sticks a "kernel26" between the old dependencies and the new dependencies
CURRENT_DEPS=`cat .PKGINFO | grep -E '^depend = ' | sed -e 's/depend = //g'`
DEPS="$CURRENT_DEPS kernel26a $DEPS"
# Puts them into the PKGINFO file so that all depend lines are contiguous
grep -q -E '^depend = ' .PKGINFO
if [ $? -eq 0 ]; then
FIRST_DEPEND_LINE_NUMBER=`grep -n -E '^depend = ' .PKGINFO | head -1 | sed -e 's/:.*//g'`
LAST_DEPEND_LINE_NUMBER=`grep -n -E '^depend = ' .PKGINFO | tail -1 | sed -e 's/:.*//g'`
LAST_LINE_NUMBER=`wc -l .PKGINFO | awk '{print $1}'`
(( DIFFERENCE=$LAST_LINE_NUMBER-$LAST_DEPEND_LINE_NUMBER ))
cat .PKGINFO | tail -${DIFFERENCE} > .PKGINFO-3
touch .PKGINFO-2
(( FIRST_DEPEND_LINE_NUMBER-- ))
cat .PKGINFO | head -${FIRST_DEPEND_LINE_NUMBER} > .PKGINFO-1
else
cp .PKGINFO .PKGINFO-1
touch .PKGINFO-2
touch .PKGINFO-3
fi
for k in $DEPS; do
echo "depend = $k" >> .PKGINFO-2
done
# This is all so we don't get mesa and mesa=7.5 in the same dep array
cat .PKGINFO-2 | awk '{print $3}' | sed -r 's/(>=|>|=|<|<=)/ \1/g' > .RAW-DEPS
cat .RAW-DEPS | awk '{print $1}' > .COL-1
cat .RAW-DEPS | awk '{print $2}' > .COL-2
# Got this from sed1line.txt... it removes duplicate lines
sed -i -n 'G; s/\n/&&/; /^\([ -~]*\n\).*\n\1/d; s/\n//; h; P' .COL-1
paste --delimiter="" .COL-1 .COL-2 > .RAW-DEPS
sed -i -e "/${PACKAGE_NAME}/d" .RAW-DEPS
sed -i -e 's/kernel26a/kernel26/g' .RAW-DEPS
sed -e 's/^/depend = /g' .RAW-DEPS > .PKGINFO-2
sed -i -e "/depend =[ ]*$/d" .PKGINFO-2
cat .PKGINFO-1 .PKGINFO-2 .PKGINFO-3 > .PKGINFO
rm .PKGINFO-1 .PKGINFO-2 .PKGINFO-3 .RAW-DEPS .COL-1 .COL-2
function do_install {
STARTDIR=`pwd`
cd /var/cache/pacman/tmp
for l in `ls -tr`; do
TEMP_DIR=`echo $l | sed -r 's/(-i686|-x86_64|-any|)\.pkg\.tar\.gz//g'`
# Extracts the package and makes the necessary modifications to it
mkdir $TEMP_DIR
mv $l $TEMP_DIR
cd $TEMP_DIR
tar -xf $l >/dev/null 2>&1
rm $l
remove_crap
get_deps
# Retars the package and installs it
if [ -e .INSTALL ]; then
tar -cf $l .INSTALL .PKGINFO * >/dev/null 2>&1
else
tar -cf $l .PKGINFO * >/dev/null 2>&1
fi
# Installs it and puts it in the cache
install_with_u $l
if [ $? -eq 0 ]; then
'pacman' -Udf $l
else
mv $l ../../pkg
cd ..
rm -r $TEMP_DIR
break;
fi
mv $l ../../pkg
cd ..
rm -r $TEMP_DIR
done
cd $STARTDIR
function get_answer {
read ANSWER
echo $ANSWER > /var/cache/pacman/answer
echo $ANSWER
if [ "$1" = "-Syu" ]; then
sync_check
aur_check
'pacman' --cachedir /var/cache/pacman/tmp -Syuw
do_install
elif [ "$1" = "-Su" ]; then
sync_check
aur_check
'pacman' --cachedir /var/cache/pacman/tmp -Suw
do_install
elif [ "$1" = "-S" ]; then
shift
PACKAGE_ARRAY=""
# If something we're installing is in the cache... move it to the temporary cache
for n in $@; do
if [ ${n:0:1} != "-" ]; then
NUM_MATCHES=`ls -1 /var/cache/pacman/pkg | grep -E "^${n}-" | wc -l`
for o in `seq 1 $NUM_MATCHES`; do
POSSIBLE_MATCH=`ls /var/cache/pacman/pkg | grep -E "^${n}-" -m${o} | tail -1`
HYPHENS=`echo $POSSIBLE_MATCH | sed -e "s/${n}//g" | grep -o "-" | wc -l`
if [ $HYPHENS -le 3 ]; then
mv /var/cache/pacman/pkg/${POSSIBLE_MATCH} /var/cache/pacman/tmp
# Changes the stored md5sum temporarily - I don't know a better way to do this
TEMP_DIR=`echo ${POSSIBLE_MATCH} | sed -r 's/(-i686|-x86_64|-any|)\.pkg\.tar\.gz//g'`
find /var/lib/pacman/sync -name $TEMP_DIR | grep -q $TEMP_DIR
if [ $? -eq 0 ]; then
MD5SUM=`md5sum /var/cache/pacman/tmp/${POSSIBLE_MATCH} | awk '{print $1}'`
REPOS=`find /var/lib/pacman/sync -name $TEMP_DIR | sed -e 's/\// /g' | awk '{print $5}'`
sed -i '/%MD5SUM%/G' /var/lib/pacman/sync/$REPOS/$TEMP_DIR/desc
MD5_LINE_NUMBER=`grep -n '%MD5SUM%' /var/lib/pacman/sync/$REPOS/$TEMP_DIR/desc | sed -e 's/:.*//g'`
(( MD5_LINE_NUMBER++ ))
sed -i -e "${MD5_LINE_NUMBER}s/.*/${MD5SUM}/" /var/lib/pacman/sync/$REPOS/$TEMP_DIR/desc
PACKAGE_ARRAY="${PACKAGE_ARRAY} ${REPOS}/${TEMP_DIR}"
fi
break;
fi
done
fi
done
# Pacman is run and then a function reads a y or an n from stdin and passes it to pacman's stdin
get_answer | 'pacman' --cachedir /var/cache/pacman/tmp -Sw $@
# The function also saves it in a file so we know whether to proceed or cancel because pacman was cancelled
LETTER=`cat /var/cache/pacman/answer`
if [ "$LETTER" != "y" ] || [ "$LETTER" != "Y" ]; then
do_install
else
# If anything got moved to the temporary cache for this it is sent back to the main one
FILES_IN_CACHE=`ls /var/cache/pacman/tmp | wc -l`
if [ $FILES_IN_CACHE -ne 0 ]; then
mv /var/cache/pacman/tmp/* /var/cache/pacman/pkg
fi
fi
# Changes all the md5sums back
for w in $PACKAGE_ARRAY; do
MD5_LINE_NUMBER=`grep -n '%MD5SUM%' /var/lib/pacman/sync/$w/desc | sed -e 's/:.*//g'`
(( MD5_LINE_NUMBER++ ))
sed -i -e "${MD5_LINE_NUMBER}d" /var/lib/pacman/sync/$w/desc
done
elif [ "$1" = "-U" ]; then
STARTDIR=`pwd`
TEMP_DIR=`echo $2 | sed -r 's/(-i686|-x86_64|-any|)\.pkg\.tar\.gz//g'`
mkdir /var/cache/pacman/$TEMP_DIR
cp "$2" /var/cache/pacman/$TEMP_DIR
cd /var/cache/pacman/$TEMP_DIR
tar -xf $2 >/dev/null 2>&1
rm $2
get_deps
# Retars the package and installs it
if [ -e .INSTALL ]; then
tar -cf $2 .INSTALL .PKGINFO * >/dev/null 2>&1
else
tar -cf $2 .PKGINFO * >/dev/null 2>&1
fi
install_with_u $2
if [ $? -eq 0 ]; then
'pacman' -U $2
fi
cd ..
rm -r $TEMP_DIR
cd $STARTDIR
elif [ "$1" = "-Qi" ] || [ "$1" = "-Qii" ]; then
INITIAL_ARG=$1
shift
if [ "$INITIAL_ARG" = "-Qi" ]; then
'pacman' -Qi $@ > /var/cache/pacman/tempquery
else
'pacman' -Qii $@ > /var/cache/pacman/tempquery
fi
if [ $? -ne 0 ] || [ ! -e /var/cache/pacman/tempquery ]; then
exit 1
fi
# Filters out all deps after kernel26 for a regular query
# Filters out all deps before kernel26 for a verbose query
if [ $? -eq 0 ]; then
START_LINE_NUMBER=`cat /var/cache/pacman/tempquery | grep -n 'Depends On' | sed -e 's/:.*//g'`
LINE_NUMBER=$START_LINE_NUMBER
(( LINE_NUMBER=$LINE_NUMBER+1 ))
cat /var/cache/pacman/tempquery | head -${LINE_NUMBER} | tail -1 | grep ':'>/dev/null 2>&1
while [ $? -ne 0 ]; do
(( LINE_NUMBER=$LINE_NUMBER+1 ))
cat /var/cache/pacman/tempquery | head -${LINE_NUMBER} | tail -1 | grep ':'>/dev/null 2>&1
done
(( END_LINE_NUMBER=$LINE_NUMBER-1 ))
(( DIFFERENCE=$LINE_NUMBER-$START_LINE_NUMBER ))
OLD_DEP_LIST=`cat /var/cache/pacman/tempquery | head -${END_LINE_NUMBER} | tail -${DIFFERENCE} | sed -e 's/.* : //g' | sed -e 's/ //g'`
for k in $OLD_DEP_LIST; do
if [ "$INITIAL_ARG" = "-Qi" ]; then
if [ "$k" != "kernel26" ]; then
NEW_DEP_LIST="$NEW_DEP_LIST $k"
else
break
fi
else
if [ "$k" != "kernel26" ]; then
NEW_DEP_LIST="$NEW_DEP_LIST $k"
fi
fi
done
fi
# Removes the old deps array and replaces it with the new one
sed -i -e "${START_LINE_NUMBER},${END_LINE_NUMBER}d" /var/cache/pacman/tempquery
(( START_LINE_NUMBER=$START_LINE_NUMBER-1 ))
END_LINE_NUMBER=`wc -l /var/cache/pacman/tempquery | awk '{print $1}'`
(( DIFFERENCE=$END_LINE_NUMBER-$START_LINE_NUMBER ))
cat /var/cache/pacman/tempquery | head -${START_LINE_NUMBER} > /var/cache/pacman/tempquery-1
cat /var/cache/pacman/tempquery | tail -${DIFFERENCE} > /var/cache/pacman/tempquery-3
CURRENT_LINE=""
CURRENT_LINE_NUMBER=1
for m in $NEW_DEP_LIST; do
if (( ${#CURRENT_LINE}+${#m}+1<=63 )); then
CURRENT_LINE="$CURRENT_LINE $m"
else
if [ $CURRENT_LINE_NUMBER -eq 1 ]; then
printf "Depends On :$CURRENT_LINE\n" >> /var/cache/pacman/tempquery-2
else
printf "\t\t$CURRENT_LINE\n" >> /var/cache/pacman/tempquery-2
fi
CURRENT_LINE=" $m"
CURRENT_LINE_NUMBER=0
fi
done
if [ $CURRENT_LINE_NUMBER -eq 1 ]; then
printf "Depends On :$CURRENT_LINE\n" >> /var/cache/pacman/tempquery-2
else
printf "\t\t$CURRENT_LINE\n" >> /var/cache/pacman/tempquery-2
fi
cat /var/cache/pacman/tempquery-1 /var/cache/pacman/tempquery-2 /var/cache/pacman/tempquery-3 > /var/cache/pacman/tempquery
# Removes the requirements array for a regular query
if [ "$INITIAL_ARG" = "-Qi" ]; then
START_LINE_NUMBER=`cat /var/cache/pacman/tempquery | grep -n 'Required By' | sed -e 's/:.*//g'`
LINE_NUMBER=$START_LINE_NUMBER
(( LINE_NUMBER=$LINE_NUMBER+1 ))
cat /var/cache/pacman/tempquery | head -${LINE_NUMBER} | tail -1 | grep ':'>/dev/null 2>&1
while [ $? -ne 0 ]; do
(( LINE_NUMBER++ ))
cat /var/cache/pacman/tempquery | head -${LINE_NUMBER} | tail -1 | grep ':'>/dev/null 2>&1
done
(( END_LINE_NUMBER=$LINE_NUMBER-1 ))
sed -i -e "${START_LINE_NUMBER},${END_LINE_NUMBER}d" /var/cache/pacman/tempquery
fi
cat /var/cache/pacman/tempquery
rm /var/cache/pacman/tempquery /var/cache/pacman/tempquery-1 /var/cache/pacman/tempquery-2 /var/cache/pacman/tempquery-3
elif [ "$1" = "-Scc" ]; then
LINE_NUMBER=0
for z in `cat /var/cache/pacman/quicklookup | awk '{print $1}'`; do
(( LINE_NUMBER++ ))
if [ ! -e $z ]; then
sed -i -e "${LINE_NUMBER}d" /var/cache/pacman/quicklookup
(( LINE_NUMBER-- ))
fi
done
'pacman' -Scc
else
'pacman' $@
fi
Last edited by ConnorBehan (2009-09-19 00:42:48)

Answer 1

rls wrote:ABS is fine, but unless I am mistaken, it does nothing to ensure the configure and make stages go smoothly. It is a good way to integrate "home-rolled" packages into the Arch system.
hmmmm... I could be wrong because I've never used Gentoo, but if you make a package that doesn't already exist for Gentoo, does it do anything to make sure the compilation goes smoothly?  If the package exists, then there is a way to build the package that has been tested by somebody else. This is how ABS works too; if a PKGBUILD exists, you can be reasonably sure it will work.
I can't imagine a program that can automatically fix or recover from compiler or Makefile errors. If it does, then... wow.
I assume that Gentoo has a larger package base than Arch, but let's not get into that discussiong again!
Xentacs script is basically designed to allow you to choose whether you are going to install from source or binary. Assuming the PKGBUILDS are in order (which for arch repository programs they are, because the binaries were built from them!), this should work as flawlessly as installing from binaries.
Dusty