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|
#! /bin/sh
# postinst script for smokeping
#
# 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 http://www.debian.org/doc/debian-policy/ or
# the debian-policy package
#
# 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'.
split_config () {
version="$1"
echo "splitting the old monolithic config into separate sections..." 1>&2
local found
local stop
local DIR
local sec
DIR=/etc/smokeping/config.d
[ -d $DIR ] || mkdir -p $DIR
for sec in General Alerts Database Presentation Probes Slaves Targets
do
if [ ! -f ${DIR}/$sec ]; then
# seed ucf with the default configuration from the version we're upgrading from
found=""
stop=false
for oldvers in 2.0.9-2 2.1.1-1 2.2.4-1 2.2.6-1 2.2.7-1 2.2.7-2 2.3.0-1 2.3.2-1
do
if ! $stop && dpkg --compare-versions "$oldvers" gt "$version"; then
stop=true
fi
if ! $stop && [ -e /usr/share/smokeping/oldconfigs/$oldvers/$sec ]; then
found=/usr/share/smokeping/oldconfigs/$oldvers/$sec
fi
done
if [ -n "$found" ]; then
ucf --three-way $found ${DIR}/$sec
fi
sed -n "1,/^\*\*\* $sec \*\*\*/{h;d}; \${g;p;q}; /^\*\*\*/{g;p;q}; H" \
< /etc/smokeping/config > ${DIR}/$sec
fi
done
}
migrate_cgi_directory () {
echo "migrating CGI files into /var/lib/smokeping/__cgi..." 1>&2
# move any old .adr files under __cgi
(cd /var/lib/smokeping; find . -name __cgi -prune -o -name '*.adr' -print0 | \
cpio --quiet -pdm0 /var/lib/smokeping/__cgi)
(cd /var/lib/smokeping; find . -name __cgi -prune -o -name '*.adr' -print0 | \
xargs -0 --no-run-if-empty rm)
# make sure the permissions are right
find /var/lib/smokeping/__cgi -name '*.adr' -print0 | \
xargs -0 --no-run-if-empty chown www-data
find /var/lib/smokeping/__cgi -type d -print0 | \
xargs -0 --no-run-if-empty chown smokeping:www-data
find /var/lib/smokeping/__cgi -type d -print0 | \
xargs -0 --no-run-if-empty chmod 2775
}
setup_permissions() {
# Smokeping.cgi is run as user www-data, so we need it to be able
# to write in /var/cache/smokeping/images and in /var/lib/smokeping/__cgi
chown smokeping:smokeping /var/lib/smokeping
chown www-data /var/cache/smokeping/images
chown smokeping:www-data /var/lib/smokeping/__cgi
chmod 2775 /var/lib/smokeping/__cgi
}
setup_apache() {
# note that this is only done on initial installations
if [ -d /etc/apache2/conf.d ] && \
[ ! -e /etc/apache2/conf.d/smokeping ] && \
which apache2ctl >/dev/null 2>&1
then
if apache2ctl configtest 2>/dev/null; then
echo "enabling Apache configuration in /etc/apache2/conf.d/smokeping" 1>&2
ln -s /etc/smokeping/apache2.conf /etc/apache2/conf.d/smokeping
if apache2ctl configtest 2>/dev/null; then
invoke-rc.d apache2 force-reload || true
fi
else
echo "broken Apache configuration detected, not enabling /etc/smokeping/apache2.conf" 1>&2
fi
else
echo "non-standard Apache configuration or missing apache2ctl, not enabling /etc/smokeping/apache2.conf" 1>&2
fi
}
var_www_migration() {
# until the lenny release (2.3.6-3), the CGI wrote the images in /var/www
if [ -d /var/www/smokeping ]
then
for d in images javascript
do
if [ ! -e /var/www/smokeping/$d ]
then
ln -s /usr/share/smokeping/www/$d /var/www/smokeping/$d
fi
done
fi
}
do_ucf() {
# install the configuration files and register them with ucfr
[ -d /etc/smokeping ] || mkdir -p /etc/smokeping
for f in basepage.html smokemail tmail
do
ucf --debconf-ok --three-way /usr/share/smokeping/etc/${f}.dist /etc/smokeping/$f
ucfr smokeping /etc/smokeping/$f
done
[ -d /etc/smokeping/config.d ] || mkdir -p /etc/smokeping/config.d
for f in /usr/share/smokeping/etc/config.d/*
do
ucf --debconf-ok --three-way --src-dir /usr/share/smokeping/etc/config.d.md5sums/ \
$f /etc/smokeping/config.d/$(basename $f)
ucfr smokeping /etc/smokeping/config.d/$(basename $f)
done
# do the main config last so the admin won't be quite so surprised
ucf --debconf-ok --three-way /usr/share/smokeping/etc/default-config /etc/smokeping/config
ucfr smokeping /etc/smokeping/config
}
# OK, let's go
case "$1" in
configure|reconfigure)
getent passwd smokeping > /dev/null || \
adduser --system --group --home /var/lib/smokeping --no-create-home --gecos "SmokePing daemon" smokeping
if [ -n "$2" ] && dpkg --compare-versions "$2" lt "2.3.5-1"
then
split_config "$2"
migrate_cgi_directory
fi
if [ -n "$2" ] && dpkg --compare-versions "$2" le "2.3.6-3"
then
var_www_migration
fi
if [ -z "$2" ]
then
setup_apache
fi
setup_permissions
do_ucf
;;
abort-upgrade|abort-remove|abort-deconfigure)
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
#DEBHELPER#
exit 0
|
