On 08/19/2010 12:50, Ivan Voras wrote:
> - Fully specify and separate package name from its version - metadata
> should not record "apache-2.2.13" but "apache", "2.2.13" to better
> support upgrading and dependancies.
> - Debian-like dependancies - the "suggests" variety, as well as
> "ranged-dependancies" - package X depends on Y versions W through Z.
> - A wrapper for all pkg_ tools to use, implemented with libarchive.
> This wrapper would allow preparation of the whole archive layout
> in-memory, together with simulating common file system operations
> like chmod, chown, rmdir, mkdir, rename, unlink, etc. and would as a
> last step offer to serialize this virtual file system to an archive.
> - Policy to forbid the lazy-maintainer dances with package names, such
> as package names depending on config flags used, etc. - this probably
> needs more thinking through. Essentially, I want to avoid things like
> what happened to the apr port - names like
> "apr-ipv6-devrandom-gdbm-db42-1.4.2.9.3.1_1"
Adding to this I would like to see a central database created for
packages that have been removed like in Slackware Linux. They keep a
file in /var/log/preserved_packages with a flat text format with the
file name looking like:
${PORTNAME}-${PORTVERSION}${PORTREVISION}-`date +%Y%m%d%H%M%S`
With the contents being that of all the actions that were performed
upon package removal & and any output from errors etc.
Id like to see that same approach achieved within /var/db/preserved or
something similiar for a suggestion.
I have attached a copy of removepkg from Slackware 13.1 that appears to
be a 1 clause BSD license ;) for reference.
As well I would also like to see something done about packages that
don't need to be upgraded because they are neither platform or arch
dependent but yet they are upgraded due to being listed as a dependent
of another port that needs to be upgraded. For example any package that
may be type shell script does not need updating due to a major lib
version bump of for say libpng.
Regards,
--
jhell,v
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
#!/bin/sh
# Slackware remove package script
#
# Sat Apr 25 21:18:53 UTC 2009 (12.34567890b)
# Converted to use new pkgbase() function to remove pathname and
# valid package extensions.
#
# Revision 12.34567890 Sun Apr 5 20:59:32 CDT 2009 <volkerdi>
# - Support packages with the extensions: .tgz, .tbz, .tlz, .txz
#
# Revision 1.9 Wed Oct 31 14:04:28 CDT 2007 volkerding
# - Fix problem removing packages with a large number of fields.
# Thanks to Niki Kovacs for noticing this, and to Piter Punk
# for the patch.
# - Use LC_ALL=C locale, which is much faster with "sort".
# Thanks to Tsomi.
# - Don't try to remove any package that starts with '-'. This
# is not a proper package name (usually a typo), and results
# in the package database being broken. Thanks to Jef Oliver.
# - Patched cat_except() to allow the last Slackware package on
# a partition to be removed (using ROOT=, of course)
# Thanks to Selkfoster for the patch, and to everyone else who
# proposed solutions before. This issue really wasn't given
# the highest priority before, but I figured while I'm in here...
#
# Revision 1.8 Thu Nov 22 14:00:13 PST 2001 volkerding Rel $
# - Move $TMP underneath $ROOT
# - Understand the idea of a base package name, so that packages
# can be removed with any of these notations:
# removepkg foo-1.0-i386-1.tgz
# removepkg foo-1.0-i386-1
# removepkg foo.tgz
# removepkg foo
#
# Revision 1.7 2001/03/30 12:36:28 volkerding
# - Strip extra ".tgz" from input names.
#
# Revision 1.6 1999/03/25 18:26:41 volkerding
# - Use external $ROOT variable, like installpkg.
#
# Revision 1.5.1 1998/03/18 15:37:28 volkerding
# - Since removepkg is always run by root, the temp directory has been
# moved from /tmp to a private directory to avoid symlink attacks from
# malicious users.
#
# Revision 1.5 1997/06/26 12:09:53 franke
# - Fixed old bug in TRIGGER regex setting
# - -preserve/-copy options now preserve non-unique files
# and empty directories also
#
# Revision 1.4 1997/06/09 13:21:36 franke
# - Package file preserve (-preserve, -copy) added.
# - Don't execute "rm -rf" lines from doinst.sh, removing links explicit.
# - Warning on no longer existing files added.
# - Warning on files changed after package installation added.
# - Intermediate file preserve (-keep) added.
# - Check for required files/links now done on a combined list.
# - Write access to /var/log/{packages,scripts} no longer necessary for -warn.
#
# Revision 1.3 1997/06/08 13:03:05 franke
# Merged with revision 1.1.1.1
#
# Revision 1.2 1996/06/01 20:04:26 franke
# Delete empty directories & formated manual pages added
#
# Revision 1.1.1.1 1995/12/18 21:20:42 volkerding
# Original Version from Slackware 3.1
#
# Revision 1.1 1995/06/05 22:49:11 volkerding
# Original Version from Slackware 3.0
#
# Copyright 1994, 1995, 1998 Patrick Volkerding, Moorhead, Minnesota USA
# Copyright 2001, Slackware Linux, Inc., Concord, CA USA
# Copyright 2009 Patrick J. Volkerding, Sebeka, MN, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Return a package name that has been stripped of the dirname portion
# and any of the valid extensions (only):
pkgbase() {
PKGEXT=$(echo $1 | rev | cut -f 1 -d . | rev)
case $PKGEXT in
'tgz' )
PKGRETURN=$(basename $1 .tgz)
;;
'tbz' )
PKGRETURN=$(basename $1 .tbz)
;;
'tlz' )
PKGRETURN=$(basename $1 .tlz)
;;
'txz' )
PKGRETURN=$(basename $1 .txz)
;;
*)
PKGRETURN=$(basename $1)
;;
esac
echo $PKGRETURN
}
# This makes "sort" run much faster:
export LC_ALL=C
# Make sure there's a proper temp directory:
TMP=$ROOT/var/log/setup/tmp
# If the $TMP directory doesn't exist, create it:
if [ ! -d $TMP ]; then
rm -rf $TMP # make sure it's not a symlink or something stupid
mkdir -p $TMP
chmod 700 $TMP # no need to leave it open
fi
ADM_DIR=$ROOT/var/log
PRES_DIR=$TMP/preserved_packages
# This simple cat_except() should be used on the installer,
# since the busybox "find" can't handle the complex find
# syntax:
#cat_except() {
# ( cd "$1" && cat $(ls * | sed "/^$2\$/d"))
#}
# This version of cat_except() allows the last package to be
# removed when ROOT= is used:
cat_except() {
( cd "$1" && \
if [ $(find . -type f -maxdepth 1 | wc -l) -ne 1 ]; then
cat $(find . -type f -maxdepth 1 | grep -v "$2")
fi
)
}
extract_links() {
sed -n 's,^( *cd \([^ ;][^ ;]*\) *; *rm -rf \([^ )][^ )]*\) *) *$,\1/\2,p'
}
preserve_file() {
if [ "$PRESERVE" = "true" ]; then
F="$(basename "$1")"
D="$(dirname "$1")"
if [ ! -d "$PRES_DIR/$PKGNAME/$D" ]; then
mkdir -p "$PRES_DIR/$PKGNAME/$D" || return 1
fi
cp -p "$ROOT/$D/$F" "$PRES_DIR/$PKGNAME/$D" || return 1
fi
return 0
}
preserve_dir() {
if [ "$PRESERVE" = "true" ]; then
if [ ! -d "$PRES_DIR/$PKGNAME/$1" ]; then
mkdir -p "$PRES_DIR/$PKGNAME/$1" || return 1
fi
fi
return 0
}
keep_files() {
while read FILE ; do
if [ ! -d "$ROOT/$FILE" ]; then
if [ -r "$ROOT/$FILE" ]; then
echo " --> $ROOT/$FILE was found in another package. Skipping."
preserve_file "$FILE"
else
if [ "$(echo $FILE | cut -b1-8)" != "install/" ]; then
echo "WARNING: Nonexistent $ROOT/$FILE was found in another package.
Skipping."
fi
fi
else
preserve_dir "$FILE"
fi
done
}
keep_links() {
while read LINK ; do
if [ -L "$ROOT/$LINK" ]; then
echo " --> $ROOT/$LINK (symlink) was found in another package. Skipping."
else
echo "WARNING: Nonexistent $ROOT/$LINK (symlink) was found in another
package. Skipping."
fi
done
}
delete_files() {
while read FILE ; do
if [ ! -d "$ROOT/$FILE" ]; then
if [ -r "$ROOT/$FILE" ]; then
if [ "$ROOT/$FILE" -nt "$ADM_DIR/packages/$PKGNAME" ]; then
echo "WARNING: $ROOT/$FILE changed after package installation."
fi
if [ ! "$WARN" = "true" ]; then
echo " --> Deleting $ROOT/$FILE"
preserve_file "$FILE" && rm -f "$ROOT/$FILE"
else
echo " --> $ROOT/$FILE would be deleted"
preserve_file "$FILE"
fi
else
echo " --> $ROOT/$FILE no longer exists. Skipping."
fi
else
preserve_dir "$FILE"
fi
done
}
delete_links() {
while read LINK ; do
if [ -L "$ROOT/$LINK" ]; then
if [ ! "$WARN" = "true" ]; then
echo " --> Deleting symlink $ROOT/$LINK"
rm -f $ROOT/$LINK
else
echo " --> $ROOT/$LINK (symlink) would be deleted"
fi
else
echo " --> $ROOT/$LINK (symlink) no longer exists. Skipping."
fi
done
}
delete_dirs() {
sort -r | \
while read DIR ; do
if [ -d "$ROOT/$DIR" ]; then
if [ ! "$WARN" = "true" ]; then
if [ $(ls -a "$ROOT/$DIR" | wc -l) -eq 2 ]; then
echo " --> Deleting empty directory $ROOT/$DIR"
rmdir "$ROOT/$DIR"
else
echo "WARNING: Unique directory $ROOT/$DIR contains new files"
fi
else
echo " --> $ROOT/$DIR (dir) would be deleted if empty"
fi
fi
done
}
delete_cats() {
sed -n 's,/man\(./[^/]*$\),/cat\1,p' | \
while read FILE ; do
if [ -f "$ROOT/$FILE" ]; then
if [ ! "$WARN" = "true" ]; then
echo " --> Deleting $ROOT/$FILE (fmt man page)"
rm -f $ROOT/$FILE
else
echo " --> $ROOT/$FILE (fmt man page) would be deleted"
fi
fi
done
}
package_name() {
STRING=$(pkgbase $1)
# If we don't do this, commands run later will take the '-' to be an option
# and will destroy the package database. Packages should not contain spaces
# in them. Normally this type of problem results from a command line typo.
if [ "$(echo $STRING | cut -b 1)" = "-" ]; then
STRING="malformed-package-name-detected"
fi
# Check for old style package name with one segment:
if [ "$(echo $STRING | cut -f 1 -d -)" = "$(echo $STRING | cut -f 2 -d -)" ];
then
echo $STRING
else # has more than one dash delimited segment
# Count number of segments:
INDEX=1
while [ ! "$(echo $STRING | cut -f $INDEX -d -)" = "" ]; do
INDEX=$(expr $INDEX + 1)
done
INDEX=$(expr $INDEX - 1) # don't include the null value
# If we don't have four segments, return the old-style (or out of spec)
package name:
if [ "$INDEX" = "2" -o "$INDEX" = "3" ]; then
echo $STRING
else # we have four or more segments, so we'll consider this a new-style
name:
NAME=$(expr $INDEX - 3)
NAME="$(echo $STRING | cut -f 1-$NAME -d -)"
echo $NAME
# cruft for later ;)
#VER=$(expr $INDEX - 2)
#VER="$(echo $STRING | cut -f $VER -d -)"
#ARCH=$(expr $INDEX - 1)
#ARCH="$(echo $STRING | cut -f $ARCH -d -)"
#BUILD="$(echo $STRING | cut -f $INDEX -d -)"
fi
fi
}
# Conversion to 'comm' utility by Mark Wisdom.
# is pretty nifty! :^)
remove_packages() {
for PKGLIST in $*
do
PKGNAME=$(pkgbase $PKGLIST)
echo
# If we don't have a package match here, then we will attempt to find
# a package using the long name format (name-version-arch-build) for
# which the base package name was given. On a properly-managed machine,
# there should only be one package installed with a given basename, but
# we don't enforce this policy. If there's more than one, only one will
# be removed. If you want to remove them all, you'll need to run
# removepkg again until it removes all the same-named packages.
if [ ! -e $ADM_DIR/packages/$PKGNAME ]; then
SHORT="$(package_name $PKGNAME)"
for long_package in $ADM_DIR/packages/${PKGNAME}* ; do
if [ "$SHORT" = "$(package_name $long_package)" ]; then
PKGNAME="$(basename $long_package)"
fi
done
fi
if [ ! -e $ADM_DIR/packages/$PKGNAME ]; then
long_package=$(ls -1 $ADM_DIR/packages/${PKGNAME}* | grep -m 1
"${PKGNAME}-[^-]*-[^-]*-[^-]*$")
if [ -e "$long_package" ]; then
PKGNAME=$(basename $long_package)
fi
fi
if [ -r $ADM_DIR/packages/$PKGNAME ]; then
if [ ! "$WARN" = true ]; then
echo "Removing package $ADM_DIR/packages/$PKGNAME..."
fi
if fgrep "./" $ADM_DIR/packages/$PKGNAME 1> /dev/null 2>&1; then
TRIGGER="^\.\/"
else
TRIGGER="FILE LIST:"
fi
if [ ! "$WARN" = true ]; then
echo "Removing files:"
fi
sed -n "/$TRIGGER/,/^$/p" < $ADM_DIR/packages/$PKGNAME | \
fgrep -v "FILE LIST:" | sort -u > $TMP/delete_list$$
# Pat's new-new && improved pre-removal routine.
cat_except $ADM_DIR/packages $PKGNAME | sort -u > $TMP/required_list$$
if [ -r $ADM_DIR/scripts/$PKGNAME ]; then
extract_links < $ADM_DIR/scripts/$PKGNAME | sort -u > $TMP/del_link_list$$
cat_except $ADM_DIR/scripts $PKGNAME | extract_links | \
sort -u > $TMP/required_links$$
mv $TMP/required_list$$ $TMP/required_files$$
sort -u $TMP/required_links$$ $TMP/required_files$$ > $TMP/required_list$$
comm -12 $TMP/del_link_list$$ $TMP/required_list$$ | keep_links
comm -23 $TMP/del_link_list$$ $TMP/required_list$$ | delete_links
else
cat $ADM_DIR/scripts/* | extract_links | \
sort -u > $TMP/required_links$$
mv $TMP/required_list$$ $TMP/required_files$$
sort -u $TMP/required_links$$ $TMP/required_files$$ >$TMP/required_list$$
fi
comm -12 $TMP/delete_list$$ $TMP/required_list$$ | keep_files
comm -23 $TMP/delete_list$$ $TMP/required_list$$ > $TMP/uniq_list$$
delete_files < $TMP/uniq_list$$
delete_dirs < $TMP/uniq_list$$
delete_cats < $TMP/uniq_list$$
if [ ! "$KEEP" = "true" ]; then
rm -f $TMP/delete_list$$ $TMP/required_files$$ $TMP/uniq_list$$
rm -f $TMP/del_link_list$$ $TMP/required_links$$ $TMP/required_list$$
fi
if [ "$PRESERVE" = "true" ]; then
if [ -r $ADM_DIR/scripts/$PKGNAME ]; then
if [ ! -d "$PRES_DIR/$PKGNAME/install" ]; then
mkdir -p "$PRES_DIR/$PKGNAME/install"
fi
cp -p $ADM_DIR/scripts/$PKGNAME $PRES_DIR/$PKGNAME/install/doinst.sh
fi
fi
if [ ! "$WARN" = "true" ]; then
for DIR in $ADM_DIR/removed_packages $ADM_DIR/removed_scripts ; do
if [ ! -d $DIR ] ; then mkdir -p $DIR ; chmod 755 $DIR ; fi
done
mv $ADM_DIR/packages/$PKGNAME $ADM_DIR/removed_packages
if [ -r $ADM_DIR/scripts/$PKGNAME ]; then
mv $ADM_DIR/scripts/$PKGNAME $ADM_DIR/removed_scripts
fi
fi
else
echo "No such package: $ADM_DIR/packages/$PKGNAME. Can't remove."
fi
done
}
if [ "$#" = "0" ]; then
echo "Usage: $(basename $0) [-copy] [-keep] [-preserve] [-warn] packagename
..."; exit 1
fi
while : ; do
case "$1" in
-copy | --copy) WARN=true; PRESERVE=true; shift;;
-keep | --keep) KEEP=true; shift;;
-preserve | --preserve) PRESERVE=true; shift;;
-warn | --warn) WARN=true; shift;;
-* | --*) echo "Usage: $(basename $0) [-copy] [-keep] [-preserve] [-warn]
packagename ..."; exit 1;;
*) break
esac
done
if [ "$WARN" = "true" ]; then
echo "Only warning... not actually removing any files."
if [ "$PRESERVE" = "true" ]; then
echo "Package contents is copied to $PRES_DIR."
fi
echo "Here's what would be removed (and left behind) if you"
echo "removed the package(s):"
echo
else
if [ "$PRESERVE" = "true" ]; then
echo "Package contents is copied to $PRES_DIR."
fi
fi
remove_packages $*
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