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#!/bin/sh
# See deb-postinst(5).
set -e
PROGNAME=dpkg
. /usr/share/dpkg/sh/dpkg-error.sh
setup_colors
get_vendor()
{
local origin="$DPKG_ROOT/etc/dpkg/origins/default"
local vendor
if [ -e "$origin" ]; then
vendor=$(sed -ne 's/^Vendor: *\([^ ]\+\) */\1/p' "$origin" | tr A-Z a-z)
fi
echo "${vendor:-default}"
}
check_merged_usr_via_aliased_dirs()
{
local vendor
vendor=$(get_vendor)
case "$vendor" in
debian)
# In Debian some people have gotten so offended by the following _warning_
# that they have resorted to bullying and abuse. Life's too short, sorry.
return
;;
ubuntu)
# Ubuntu does not seem interested in it.
return
;;
esac
for d in /bin /sbin /lib /lib32 /libo32 /libx32 /lib64; do
linkname="$(readlink $DPKG_ROOT$d || true)"
if [ "$linkname" = "usr$d" ] || [ "$linkname" = "/usr$d" ]; then
warning "This system uses merged-usr-via-aliased-dirs, going behind dpkg's"
warning "back, breaking its core assumptions. This can cause silent file"
warning "overwrites and disappearances, and its general tools misbehavior."
warning "See <https://wiki.debian.org/Teams/Dpkg/FAQ#broken-usrmerge>."
break
fi
done
}
# Version 1.21.0 had bogus handling of DPKG_ADMINDIR in update-alternatives,
# and misplaced them, fix them up.
fixup_misplaced_alternatives()
(
admindir=${DPKG_ADMINDIR:-/var/lib/dpkg}
cd "$admindir"
for file in *; do
if ! [ -f "$file" ]; then
# Ignore anything that is not a file.
continue
fi
# Check whether this is a known file we do not want to act on.
case "$file" in
arch|\
available|available-old|\
cmethopt|methlock|\
diversions|diversions-old|\
lock|lock-frontend|\
statoverride|statoverride-old|\
status|status-old)
# Ignore known files just to make sure.
continue
;;
*)
esac
# Check whether the file looks like an alternative state file.
mode="$(head -1 "$file")"
case "$mode" in
auto|manual)
# Looks like a state file, we will handle this one.
echo "Moving misplaced alternative state file $admindir/$file..."
mv "$file" "alternatives/$file"
;;
*)
warning "unknown dpkg database file $admindir/$file is not a misplaced alternative state... leaving as is"
continue
;;
esac
done
)
case "$1" in
configure)
fixup_misplaced_alternatives
check_merged_usr_via_aliased_dirs
;;
abort-upgrade|abort-deconfigure|abort-remove)
;;
*)
error "called with unknown argument '$1'"
;;
esac
#DEBHELPER#
exit 0
|
