postinst is in daemontools-run 1:0.76-6.1.
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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set -e
test "$1" = 'configure' || exit 0
# workaround #767933
# copy from sysvinit-2.88dsf/debian/sysvinit-core.postinst and adjust
if [ ! -f /etc/inittab ]
then
cp -p /usr/share/daemontools-run/inittab /etc/inittab
fi
# end copy from sysvinit-2.88dsf
if test -z "$2" || dpkg --compare-versions "$2" lt '1:0.76'; then
test -n "$(ls -1 /etc/service/)" ||
for i in /var/service /service /var/lib/svscan; do
test -d $i || continue
test -n "$(ls -1 $i)" || continue
echo "Found directory $i, copying content to /etc/service/..."
cp -a $i/* /etc/service/
echo "Moving $i to $i{old} and creating compatibility symlink..."
rm -rf $i'{old}'
mv $i $i'{old}'
ln -s /etc/service $i
break
done
# upgrade from unofficial daemontools-run
if grep -q '#-- daemontools-run begin' /etc/inittab; then
echo 'Removing SV inittab entry...'
rm -f /etc/inittab'{new}'
sed -e '/#-- daemontools-run begin/,/#-- daemontools-run end/d' \
/etc/inittab > /etc/inittab'{new}'
mv -f /etc/inittab'{new}' /etc/inittab
kill -s HUP 1
sleep 1
fi
# update from daemontools-installer
if grep -q 'SV:123456:respawn:/command/svscanboot' /etc/inittab; then
echo 'Removing SV inittab entry...'
rm -f /etc/inittab'{new}'
sed -e '/SV:123456:respawn:\/command\/svscanboot/d' \
/etc/inittab > /etc/inittab'{new}'
mv -f /etc/inittab'{new}' /etc/inittab
kill -s HUP 1
sleep 1
fi
# update from daemontools-installer (fhs version)
if grep -q 'SV:123456:respawn:/usr/bin/svscanboot' /etc/inittab; then
echo 'Removing SV inittab entry...'
rm -f /etc/inittab'{new}'
sed -e '/SV:123456:respawn:\/usr\/bin\/svscanboot/d' \
/etc/inittab > /etc/inittab'{new}'
mv -f /etc/inittab'{new}' /etc/inittab
kill -s HUP 1
sleep 1
fi
fi
if test -z "$2"; then
# not upgrading
if grep '^SV:' /etc/inittab >/dev/null; then
cat <<-\EOT >&2
There already is an SV entry in /etc/inittab. In order to have this
package add an entry with the name SV to have daemontools' service
supervision started through sysvinit, you need to remove or rename
the current SV entry first.
Installation failed.
EOT
exit 1
fi
fi
if ! grep '^SV:' /etc/inittab >/dev/null; then
echo 'Adding SV inittab entry...'
cp /etc/inittab /etc/inittab'{new}'
cat >>/etc/inittab'{new}' <<-\EOT
#-- daemontools-run begin
SV:123456:respawn:/usr/bin/svscanboot
#-- daemontools-run end
EOT
mv -f /etc/inittab'{new}' /etc/inittab
kill -s HUP 1
fi
# systemd service
test -h /etc/systemd/system/multi-user.target.wants/daemontools.service ||
test ! -d /etc/systemd/system/multi-user.target.wants ||
ln -s /lib/systemd/system/daemontools.service \
/etc/systemd/system/multi-user.target.wants/
test ! -d /run/systemd/system || systemctl start daemontools.service
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