preinst is in apache2 2.4.7-1ubuntu4.20.
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.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | #! /bin/bash
# preinst script for apache2
#
# see: dh_installdeb(1)
set -e
# summary of how this script can be called:
# * <new-preinst> `install'
# * <new-preinst> `install' <old-version>
# * <new-preinst> `upgrade' <old-version>
# * <old-preinst> `abort-upgrade' <new-version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package
# XXX remove
# echo apache2.preinst $@ running
# XXX: Whichever file you add in one of the sections below, make sure you copy
# the same file arrays to apache2.postinst and apache2.postrm, too!
OBSOLETE_CONFFILES="/etc/apache2/mods-available/authz_default.load
/etc/apache2/mods-available/authn_default.load
/etc/apache2/mods-available/mem_cache.load
/etc/apache2/mods-available/mem_cache.conf
/etc/apache2/mods-available/authn_alias.load
/etc/apache2/mods-available/cern_meta.load
/etc/apache2/mods-available/disk_cache.load
/etc/apache2/mods-available/disk_cache.conf
/etc/apache2/mods-available/ident.load
/etc/apache2/mods-available/imagemap.load
/etc/apache2/mods-available/version.load"
# conffiles which moved from one random location to another, separate source and
# destination by a colon
MOVED_CONFFILES="/etc/bash_completion.d/apache2.2-common:/etc/bash_completion.d/apache2
/etc/apache2/sites-available/default:/etc/apache2/sites-available/000-default.conf
/etc/apache2/sites-available/default-ssl:/etc/apache2/sites-available/default-ssl.conf
/etc/apache2/conf.d/charset:/etc/apache2/conf-available/charset.conf
/etc/apache2/conf.d/localized-error-pages:/etc/apache2/conf-available/localized-error-pages.conf
/etc/apache2/conf.d/other-vhosts-access-log:/etc/apache2/conf-available/other-vhosts-access-log.conf
/etc/apache2/conf.d/security:/etc/apache2/conf-available/security.conf"
obsolete_conffile_exists()
{
for CONFFILE in $OBSOLETE_CONFFILES ; do
if [ -e "$CONFFILE" ] ; then
return 0
fi
done
for CONFFILE in $MOVED_CONFFILES_IN ; do
if [ -e "/etc/apache2/conf.d/$CONFFILE" ] ; then
return 0
fi
done
return 1
}
# The two functions below are licensed GPL-2+ and was written by dpkg maintainers
# See the dpkg-maintscript-helper script for details
prepare_rm_conffile()
{
for CONFFILE in $OBSOLETE_CONFFILES ; do
[ -e "$CONFFILE" ] || continue
local md5sum="$(md5sum $CONFFILE | sed -e 's/ .*//')"
local old_md5sum="$(dpkg-query -W -f='${Conffiles}' apache2.2-common apache2 | \
sed -n -e "\' $CONFFILE ' { s/ obsolete$//; s/.* //; p }")"
if [ "$md5sum" != "$old_md5sum" ]; then
echo "Obsolete conffile $CONFFILE has been modified by you."
echo "Saving as $CONFFILE.dpkg-bak ..."
mv -f "$CONFFILE" "$CONFFILE.dpkg-backup"
else
echo "Moving obsolete conffile $CONFFILE out of the way..."
mv -f "$CONFFILE" "$CONFFILE.dpkg-remove"
fi
done
}
prepare_mv_conffile()
{
for CONFFILE in $MOVED_CONFFILES ; do
CONFFILE=$( echo "$CONFFILE" | cut -d: -f1 )
[ -e "$CONFFILE" ] || continue
local md5sum="$(md5sum $CONFFILE | sed -e 's/ .*//')"
local old_md5sum="$(dpkg-query -W -f='${Conffiles}' apache2.2-common apache2 | \
sed -n -e "\' $CONFFILE ' { s/ obsolete$//; s/.* //; p }")"
if [ "$md5sum" = "$old_md5sum" ]; then
mv -f "$CONFFILE" "$CONFFILE.dpkg-remove"
fi
done
}
case "$1" in
install|upgrade)
# black magic follows below. we're upgrading from Squeeze if
# 1) an apache2-mpm package exists
if [ -d "/etc/apache2/" ] ; then
mpm=$(dpkg-query -f '${Package}\t${Status}\n' -W 'apache2-mpm-*' 2>/dev/null | grep "install ok" | cut -f1)
if [ -n "$mpm" ] ; then
if [ ! -f /etc/apache2/.apache2_mpm_selected ] ; then
echo "# automatically created during upgrade" >> /etc/apache2/.apache2_mpm_selected
echo "# it can be safely removed anytime" >> /etc/apache2/.apache2_mpm_selected
echo "$mpm" >> /etc/apache2/.apache2_mpm_selected
fi
fi
if [ -n "$2" ] && dpkg --compare-versions "$2" 'lt' '2.4.7-1~' && dpkg --compare-versions "$2" 'ge' '2.4.1-1' ; then
CUR_MPM=$(a2query -M) || exit 1
if [ "$CUR_MPM" == "itk" ] ; then
echo "apache2-mpm-itk" >> /etc/apache2/.apache2_mpm_selected
fi
fi
fi
# 2) an apache2.2-common conffiles exists or the 2.2 apache2 package is
# installed
if [ -n "$2" ] || obsolete_conffile_exists ; then
prepare_rm_conffile
prepare_mv_conffile
fi
;;
abort-upgrade)
;;
*)
echo "preinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
exit 0
# vim: syntax=sh ts=4 sw=4 sts=4 sr noet
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