postinst is in sbuild 0.75.0-1ubuntu1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
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# postinst script for sbuild
#
# see: dh_installdeb(1)
set -e
# summary of how this script can be called:
# * <postinst> `configure' <most-recently-configured-version>
# * <old-postinst> `abort-upgrade' <new version>
# * <conflictor's-postinst> `abort-remove' `in-favour' <package>
# <new-version>
# * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
# <failed-install-package> <version> `removing'
# <conflicting-package> <version>
# for details, see /usr/share/doc/packaging-manual/
#
# quoting from the policy:
# Any necessary prompting should almost always be confined to the
# post-installation script, and should be protected with a conditional
# so that unnecessary prompting doesn't happen if a package's
# installation fails and the `postinst' is called with `abort-upgrade',
# `abort-remove' or `abort-deconfigure'.
# Move a conffile without triggering a dpkg question
mv_conffile() {
OLDCONFFILE="$1"
NEWCONFFILE="$2"
if [ -e "$OLDCONFFILE" ]; then
echo "Preserving user changes to $NEWCONFFILE ..."
mv -f "$NEWCONFFILE" "$NEWCONFFILE".dpkg-new
mv -f "$OLDCONFFILE" "$NEWCONFFILE"
fi
}
case "$1" in
configure)
if dpkg --compare-versions "$2" lt "0.60.1-1"; then
mv_conffile "/etc/sbuild/copyfiles-defaults" \
"/etc/schroot/buildd/copyfiles"
mv_conffile "/etc/sbuild/nssdatabases-defaults" \
"/etc/schroot/buildd/nssdatabases"
fi
# If sbuild is a user group, migrate to a system group. Save
# a list of group members, then add them back to the new group
# once created.
SGID="$(grep ^sbuild: /etc/group | sed -r -e 's/([^:]+):([^:]+):([^:]+):.*/\3/')"
if [ -n "$SGID" ] && [ "$SGID" -ge "1000" ]; then
SUSR="$(grep ^sbuild: /etc/group | sed -r -e 's/([^:]+):([^:]+):([^:]+):(.*)$/\4/' -e 's/,/ /g')"
delgroup --quiet sbuild
fi
if ! getent group sbuild > /dev/null; then
addgroup --system --quiet sbuild
fi
# Restore group membership to users in old user group (if any)
for user in $SUSR; do
adduser $user sbuild
done
# Create dedicated sbuild user
if ! getent passwd sbuild > /dev/null; then
adduser --system --quiet --home /var/lib/sbuild --no-create-home \
--shell /bin/bash --ingroup sbuild --gecos "Debian source builder" sbuild
fi
# Unlock account in case it was locked from previous purge.
usermod -U -e '' sbuild || true
chown -R sbuild:sbuild /var/lib/sbuild
chmod 02770 /var/lib/sbuild
chmod 02770 /var/lib/sbuild/apt-keys
[ -f /var/lib/sbuild/avg-build-space ] && \
chmod 0664 /var/lib/sbuild/avg-build-space
[ -f /var/lib/sbuild/avg-build-times ] && \
chmod 0664 /var/lib/sbuild/avg-build-times
;;
abort-upgrade|abort-remove|abort-deconfigure)
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 0
;;
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
exit 0
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