source: trunk/debathena/config/kerberos-config/debian/debathena-kerberos-config.postinst @ 24722

Revision 24722, 3.6 KB checked in by broder, 15 years ago (diff)
In kerberos-config: * Fix cleanup of old apparmor diversions in the postinst.
  • Property svn:executable set to *
Line 
1#!/bin/sh
2# postinst script for debathena-kerberos-config
3#
4# see: dh_installdeb(1)
5
6set -e
7
8# summary of how this script can be called:
9#        * <postinst> `configure' <most-recently-configured-version>
10#        * <old-postinst> `abort-upgrade' <new version>
11#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
12#          <new-version>
13#        * <postinst> `abort-remove'
14#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
15#          <failed-install-package> <version> `removing'
16#          <conflicting-package> <version>
17# for details, see http://www.debian.org/doc/debian-policy/ or
18# the debian-policy package
19
20# dh_installdeb will replace this with shell code automatically
21# generated by other debhelper scripts.
22
23#DEBHELPER#
24
25package=debathena-kerberos-config
26ours=.debathena
27theirs=.debathena-orig
28
29undivert_unlink_symlink()
30{
31    file="$1"
32    ourfile="$2"
33    theirfile="$3"
34    if [ ! -L "$file" ] || \
35        [ "$(readlink "$file")" != "$(basename "$ourfile")" -a \
36          "$(readlink "$file")" != "$(basename "$theirfile")" ]; then
37        echo "*** OMINOUS WARNING ***: $file is not linked to either $(basename "$ourfile") or $(basename "$theirfile")" >&2
38    else
39        rm -f "$file"
40    fi
41}
42
43undivert_unlink_divert()
44{
45    file="$1"
46    if [ ! -L "$file" ] && [ ! -e "$file" ]; then
47        dpkg-divert --remove --rename --package "$package" "$file"
48    else
49        echo "Not removing diversion of $file by $package" >&2
50    fi
51}
52
53undivert_unlink()
54{
55    prefix=$1
56    suffix=$2
57
58    file=$prefix$suffix
59    ourfile=$prefix$ours$suffix
60    theirfile=$prefix$theirs$suffix
61
62    undivert_unlink_symlink "$file" "$ourfile" "$theirfile"
63    undivert_unlink_divert "$file" "$package"
64}
65
66cleanup_old_diversion() {
67    file="$1"
68    if dpkg-divert --list "${file}" | grep -Fxq "diversion of ${file} to ${file}${theirs} by ${package}"; then
69        undivert_unlink "$file"
70    fi
71}
72
73cleanup_old_removal() {
74    file="$1"
75    removedfile="$2"
76    if dpkg-divert --list "${file}" | grep -Fxq "diversion of ${file} to ${removedfile} by ${package}"; then
77        undivert_unlink_divert "$file"
78    fi
79}
80
81
82case "$1" in
83    configure)
84        if dpkg-query -f '${Conffiles}\n' -W debathena-kerberos-config | grep '/etc/apparmor.d/usr.sbin.cups.debathena' | awk '{ print $2"  "$1 }' | md5sum -c >/dev/null 2>&1; then
85            rm -f /etc/apparmor.d/usr.sbin.cups.debathena
86        fi
87
88        # The cupsd config can be removed, but not diverted; the
89        # kerberosclient config can be diverted but not removed. Since
90        # both files have been both at various points in the package's
91        # history, if one of them is wrong, fix it.
92        cleanup_old_removal /etc/apparmor.d/usr.sbin.cupsd /usr/share/debathena-kerberos-config/etc++apparmor.d++usr.sbin.cupsd
93        cleanup_old_diversion /etc/apparmor.d/usr.sbin.cupsd
94        cleanup_old_removal /etc/apparmor.d/abstractions/kerberosclient /usr/share/debathena-kerberos-config/etc++apparmor.d++abstractions++kerberosclient
95        cleanup_old_diversion /etc/apparmor.d/abstractions/kerberosclient
96
97        # Handle upgrading from a system with krb4 to one without
98        krb5_version="$(dpkg-query -W -f '${Version}' krb5-user)"
99        if dpkg --compare-versions "$krb5_version" ge "1.7~"; then
100            cleanup_old_diversion /etc/krb.conf
101            cleanup_old_diversion /etc/krb.realms
102        fi
103
104        if dpkg --compare-versions "$2" lt-nl "1.10~" && \
105            hash apparmor_status 2>/dev/null && \
106            apparmor_status --enabled; then
107            if hash invoke-rc.d 2>/dev/null; then
108                invoke-rc.d apparmor reload
109            else
110                /etc/init.d/apparmor reload
111            fi
112        fi
113    ;;
114
115    abort-upgrade|abort-remove|abort-deconfigure)
116    ;;
117
118    *)
119        echo "postinst called with unknown argument \`$1'" >&2
120        exit 1
121    ;;
122esac
123
124exit 0
125
126
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