[Pkg-cacti-maint] Bug#861858: cacti fails to create symlinks when upgrading from jessie to stretch

[Paul Gevers]

Package: cacti
Version: 0.8.8h+ds1-8
Severity: important

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Cacti version 0.8.8h+ds1-8 replaced the embedded jstree JavaScript with a
dependency on the (new) libjs-jquery-jstree package. Instead of having the
files in its own directory tree it now provides symlinks to the jstree
package. However, dpkg doesn't convert dirs to links or vice-versa
automatically and cacti didn't take care of it, so upgrading from anywhere
between 0.8.8a+dfsg-1 (inclusive) and 0.8.8h+ds1-8 (exclusive) to 0.8.8h+ds1-8
or later causes loss of the theme files (CSS and figures), preventing the
device tree to collapse. This includes the upgrade from Jessie to Stretch.

The new link is:
/usr/share/cacti/site/include/js/themes -> ../../../../javascript/jstree/themes

Original report found on the cacti forum in a complaint about the Ubuntu
upgrade (no https): http://forums.cacti.net/viewtopic.php?f=21&t=57313

- -- System Information:
Debian Release: 9.0
  APT prefers testing-debug
  APT policy: (500, 'testing-debug'), (500, 'testing'), (200, 'experimental'), (200, 'testing'), (50, 'experimental'), (50, 'testing'), (1, 'experimental')
Architecture: amd64
 (x86_64)

Kernel: Linux 4.9.0-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages cacti depends on:
ii  dbconfig-mysql                              2.0.8
ii  debconf [debconf-2.0]                       1.5.60
ii  javascript-common                           11
ii  libapache2-mod-php                          1:7.0+49
ii  libapache2-mod-php7.0 [libapache2-mod-php]  7.0.16-3
ii  libjs-jquery                                3.1.1-2
ii  libjs-jquery-cookie                         11-3
ii  libjs-jquery-jstree                         3.3.3+dfsg1-1
ii  libjs-jquery-ui                             1.12.1+dfsg-4
ii  libjs-jquery-ui-theme-ui-lightness          1.12.1+dfsg-1
ii  libphp-adodb                                5.20.9-1
pn  perl:any                                    <none>
ii  php-cli                                     1:7.0+49
ii  php-mbstring                                1:7.0+49
ii  php-mysql                                   1:7.0+49
ii  php-snmp                                    1:7.0+49
ii  php-xml                                     1:7.0+49
ii  php7.0-cli [php-cli]                        7.0.16-3
ii  php7.0-mbstring [php-mbstring]              7.0.16-3
ii  php7.0-mysql [php-mysqlnd]                  7.0.16-3
ii  php7.0-snmp [php-snmp]                      7.0.16-3
ii  php7.0-xml [php-xml]                        7.0.16-3
ii  rrdtool                                     1.6.0-1+b2
ii  snmp                                        5.7.3+dfsg-1.7
ii  ucf                                         3.0036

Versions of packages cacti recommends:
ii  apache2 [httpd]                             2.4.25-3
ii  iputils-ping                                3:20161105-1
ii  logrotate                                   3.11.0-0.1
ii  mariadb-server-10.1 [virtual-mysql-server]  10.1.22-3

Versions of packages cacti suggests:
ii  moreutils  0.60-1
pn  php-ldap   <none>

- -- debconf information:
  cacti/mysql/method: Unix socket
  cacti/remote/port:
  cacti/dbconfig-upgrade: true
  cacti/database-type: mysql
  cacti/remove-error: abort
  cacti/purge: false
  cacti/dbconfig-remove: true
* cacti/mysql/admin-user: root
  cacti/remote/host: localhost
  cacti/internal/reconfiguring: false
  cacti/passwords-do-not-match:
  cacti/upgrade-error: abort
  cacti/dbconfig-reinstall: false
* cacti/webserver: apache2
  cacti/db/dbname: cacti
  cacti/install-error: abort
  cacti/upgrade-backup: true
  cacti/missing-db-package-error: abort
  cacti/db/app-user: cacti at localhost
  cacti/internal/skip-preseed: false
  cacti/remote/newhost:
* cacti/dbconfig-install: true

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