File: monotone-server.postrm

package info (click to toggle)
monotone 1.1-4+deb8u2
  • links: PTS, VCS
  • area: main
  • in suites: jessie
  • size: 20,664 kB
  • ctags: 8,113
  • sloc: cpp: 86,443; sh: 6,906; perl: 924; makefile: 838; python: 517; lisp: 379; sql: 118; exp: 91; ansic: 52
file content (194 lines) | stat: -rw-r--r-- 6,379 bytes parent folder | download | duplicates (4)
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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
#! /bin/sh
# vim: set ft=sh sw=4 et:
# postrm script for #PACKAGE#
#
# see: dh_installdeb(1)

set -e

# summary of how this script can be called:
#        * <postrm> `remove'
#        * <postrm> `purge'
#        * <old-postrm> `upgrade' <new-version>
#        * <new-postrm> `failed-upgrade' <old-version>
#        * <new-postrm> `abort-install'
#        * <new-postrm> `abort-install' <old-version>
#        * <new-postrm> `abort-upgrade' <old-version>
#        * <disappearer's-postrm> `disappear' <r>overwrit>r> <new-version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package

MTN_HOME="/var/lib/monotone"
MTN_CONF_DIR="/etc/monotone"
MTN_HOOKS_DIR="${MTN_CONF_DIR}/hooks.d"
MTN_KEY_DIR="${MTN_HOME}/keys"
MTN_LOG_DIR="/var/log/monotone"
MTN_RUN_DIR="/var/run/monotone"
MAINLOG="${MTN_LOG_DIR}/mtn.log"
ERRORLOG="${MTN_LOG_DIR}/error.log"

locate_key()
{
  # This function attempts to locate the auto-generated keypair for the monotone-server.
  # It may list multiple filenames, or none at all.
  # Filenames are printed to standard out.
  db_get monotone-server/key

  if [ -d ${MTN_KEY_DIR} ]; then
    find ${MTN_KEY_DIR} -type f -regextype posix-egrep -regex "${MTN_KEY_DIR}/${RET}(\.[0-9a-f]{40})?"
  fi
}

delete_key()
{
  local KEY
  local KEY_COUNT

  KEY=`locate_key`
  KEY_COUNT=`echo ${KEY} | wc -w`

  if [ ${KEY_COUNT} -gt 1 ]; then
    echo "Unable to determine auto-generated monotone-server keypair." >&2
    echo "Please delete it manually from ${MTN_KEY_DIR}." >&2
  elif [ ${KEY_COUNT} -eq 1 ]; then
    rm -f "${KEY}"
  fi
}

case "$1" in
    purge)
       # note: when executing in this mode, this script cannot assume
       # the existence of _any_ of the package dependencies.  it must
       # work using only Essential packages.  hence, in several cases
       # below we do cleanups only if the relevant program exists.

       # remove config files from ucf database and filesystem
       for conf in write-permissions read-permissions serverrc; do

          # mimic dpkg and remove backups too
          for ext in '' '~' '%' .bak .ucf-new .ucf-old .ucf-dist; do
             rm -f /etc/monotone/$conf$ext || true
          done 

          # clear entries in ucf database
          # note: we cannot assume ucf is still installed at this point
          # (if it isn't, we don't need to worry about its database)
          if which ucf > /dev/null; then
             ucf --purge /etc/monotone/$conf
          fi
          if which ucfr > /dev/null; then
             ucfr --purge monotone-server /etc/monotone/$conf
          fi
       done

       # if debconf still exists and we were asked to auto-manage the
       # database, delete the auto-generated key and database. don't
       # delete anything else in /var/lib/monotone - there might be
       # hand-created databases and keys that the admin wants to keep.
       # in any case remove /var/lib/monotone(/keys) if empty.

       if [ -e /usr/share/debconf/confmodule ]; then
	   . /usr/share/debconf/confmodule

	   db_get monotone-server/manage-db
	   if [ "$RET" = true ]; then
	       delete_key
               rm -f ${MTN_HOME}/default.mtn
               rm -f ${MTN_HOME}/default.mtn~
               rm -f ${MTN_HOME}/default.mtn-journal

               if [ -f /etc/monotone/passphrases ]; then
                 db_get monotone-server/key
	         grep -v "$RET" /etc/monotone/passphrases \
	                      > /etc/monotone/passphrases.dpkg-new || true
	         if [ -s /etc/monotone/passphrases.dpkg-new ]; then
	  	     mv -f /etc/monotone/passphrases.dpkg-new \
		           /etc/monotone/passphrases
	         else
		     rm -f /etc/monotone/passphrases.dpkg-new \
		           /etc/monotone/passphrases
	         fi
	       fi
	   fi
	   # do not stop debconf, the debhelper additions will need it.
       fi

       if [ -d ${MTN_KEY_DIR} ]; then
         rmdir --ignore-fail-on-non-empty ${MTN_KEY_DIR}
       fi

       if [ -d ${MTN_HOME} ]; then
         rmdir --ignore-fail-on-non-empty ${MTN_HOME}
       fi

       if [ -d ${MTN_RUN_DIR} ]; then
         rmdir --ignore-fail-on-non-empty ${MTN_RUN_DIR}
       fi

       # We only delete get_passphrase_from_file.lua if it is a symlink
       # (as that is what the postinst script creates).
       GET_PASSPHRASE_HOOK="${MTN_HOOKS_DIR}/get_passphrase_from_file.lua"
       if [ -L ${GET_PASSPHRASE_HOOK} ]; then
         rm ${GET_PASSPHRASE_HOOK}
       fi

       if [ -d ${MTN_HOOKS_DIR} ]; then
         rmdir --ignore-fail-on-non-empty ${MTN_HOOKS_DIR}
       fi

       if [ -d ${MTN_CONF_DIR} ]; then
         rmdir --ignore-fail-on-non-empty ${MTN_CONF_DIR}
       fi

       # delete log files if they exist
       if [ -d ${MTN_LOG_DIR} ]; then
         rm -f ${MAINLOG}
         rm -f ${ERRORLOG}
         rmdir --ignore-fail-on-non-empty ${MTN_LOG_DIR}
       fi

       # Create a list of paths that still exist and may contain files owned by the monotone
       # user or group.
       MTN_USED_PATHS=""
       for MTN_USED_PATH in "${MTN_HOME}" "${MTN_CONF_DIR}" "${MTN_LOG_DIR}" "${MTN_RUN_DIR}"; do
         if [ -d "${MTN_USED_PATH}" ]; then
           MTN_USED_PATHS="${MTN_USED_PATHS:+${MTN_USED_PATHS}, }${MTN_USED_PATH}"
         fi
       done

       # if deluser/delgroup exist, remove the server user and group.
       # do not do this if /var/lib/monotone or /var/run/monotone still
       # exists (so that it will still have a named user owning it).
       if which deluser > /dev/null && [ -z "${MTN_USED_PATHS}" ]; then
	   if [ -n "`id -u monotone 2>/dev/null`" ]; then
               deluser --quiet monotone 2>/dev/null >/dev/null
	   fi

	   if [ -n "`id -g monotone 2>/dev/null`" ]; then
               delgroup --quiet monotone 2>/dev/null >/dev/null
	   fi
       else
	   if [ -n "${MTN_USED_PATHS}" ]; then
	       reason="the following paths still exist: ${MTN_USED_PATHS}"
	   else
	       reason="deluser is not available"
	   fi
	   echo "warning: not deleting monotone user or group because $reason." >&2
       fi

    ;;
    remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
    ;;

    *)
        echo "postrm 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