/etc/piuparts/scripts-wheezy/post_setup_wheezy-fake-essential is in piuparts 0.77.
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 | #!/bin/sh
set -e
# The following issues won't be fixed in wheezy:
# - unconditional use of deluser during postrm purge
# - unconditional use of ucf during postrm purge
# so add these packages to the "fake" essential set.
USED_DURING_PURGE="adduser ucf"
case ${PIUPARTS_OBJECTS%%=*} in
dpkg)
# don't install fake essential packages while creating the tarball
exit 0
;;
adduser|ucf)
# allow testing of the fake essential packages
exit 0
;;
esac
echo "*** Adding fake essential packages ***"
apt-get install -yf $USED_DURING_PURGE
|