/etc/piuparts/scripts/post_distupgrade_exceptions is in piuparts 0.84.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101  | #!/bin/sh
set -e
log_debug() {
	echo "Debug: piuparts exception for package $PIUPARTS_OBJECTS"
}
# E: Could not perform immediate configuration on ...
rm -fv /etc/apt/apt.conf.d/piuparts-disable-immediate-configure
if [ "$PIUPARTS_DISTRIBUTION" = "squeeze" ]; then
	case ${PIUPARTS_OBJECTS%%=*} in
		linpopup)
			# package removed after lenny
			log_debug
			for file in /var/lib/linpopup/messages.dat
			do
				test ! -f "$file" || chmod -c o-w "$file"
			done
			;;
	esac
fi
if [ "$PIUPARTS_DISTRIBUTION" = "wheezy" ]; then
	# https://bugs.debian.org/687611
	if [ -f /usr/share/keyrings/debian-archive-removed-keys.gpg~ ]; then
		echo "FIXING /usr/share/keyrings/debian-archive-removed-keys.gpg~"
		mv -v /usr/share/keyrings/debian-archive-removed-keys.gpg~ /usr/share/keyrings/debian-archive-removed-keys.gpg
	fi
	case ${PIUPARTS_OBJECTS%%=*} in
		kismet|\
		tshark|\
		wireshark|\
		wireshark-common|\
		wireshark-dbg|\
		libcap2-bin)
			# libcap2-bin/wheezy is part of the minimal chroot and recommends libpam-cap
			# a conffile moved from libcap2-bin/squeeze to libpam-cap/wheezy
			log_debug
			apt-get install -yf libpam-cap
			;;
		ogre-doc-nonfree)
			# #773059 - ogre-doc: unhandled symlink to directory conversion: /usr/share/doc/PACKAGE
			# package removed after lenny
			log_debug
			apt-get install -yf ogre-1.8-doc
			;;
		phpgacl)
			# #682825
			# package not in wheezy
			log_debug
			for dir in /usr/share/phpgacl/admin/templates_c
			do
				test ! -d "$dir" || chmod -c o-w "$dir"
			done
			;;
	esac
fi
if [ "$PIUPARTS_DISTRIBUTION" = "jessie" ]; then
	# base-files only upgrades pristine /etc/nsswitch.conf
	if ! grep -q ^gshadow: /etc/nsswitch.conf ; then
		echo "Adding gshadow line to /etc/nsswitch.conf"
		sed -i '/^shadow:/a gshadow:        files' /etc/nsswitch.conf
	fi
fi
if [ "$PIUPARTS_DISTRIBUTION" = "stretch" ]; then
	# fakeroot:i386 in jessie shipped these with permissions 0775 (#826318)
	for dir in /usr/share/man/nl /usr/share/man/nl/man1
	do
		test ! -d "$dir" || chmod -c g-w "$dir"
	done
fi
if [ "$PIUPARTS_DISTRIBUTION" = "buster" ]; then
	# dpkg does not properly clean up directories getting empty and no longer shipped
	for dir in /etc/dbus-1/system.d /etc/dbus-1
	do
		if [ -d "$dir" ]; then
			rmdir --ignore-fail-on-non-empty "$dir"
			test -d "$dir" || echo "removed empty directory '$dir'"
		fi
	done
	# policykit-1 in buster changes the permissions 0755 -> 0700
	if [ -d /var/lib/polkit-1 ]; then
		chmod -c go-rx /var/lib/polkit-1
	fi
fi
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