Package: cups
Version: 1.4.8-2
Severity: wishlist
Hi dear CUPS maintainers,
I would like cups to implement a dpkg trigger to update it's queues' PPDs on
driver upgrades.
This task is currently implemented (and duplicated) in each printer driver, as
a postinst. See e.g. c2esp, m2300w, foo2zjs, epson-inkjet-printer-escpr, etc.
My initial take to solve this functionality duplication was the creation of a
tiny cupsppupdate script and package (+ dh_* to include it nicely in the
package building processes), that would be launched by each package's
postinst. You can see this on the pkg-printing-tools initial repository:
http://anonscm.debian.org/gitweb/?p=collab-maint/pkg-printing-tools.git
But now I think this is not the right way to do it. As all drivers are
supposed to be installable even in the absence of CUPS (aka Recommends), the
script (and previously the postinst) checks for the presence and running status
of CUPS, and then goes updating files under /etc/cups/.
This should IMHO be implemented on CUPS's side, as a dpkg trigger: this way,
each time a driver would install or upgrade a file under
/usr/lib/cups/{driver,filter}, CUPS's dpkg-trigger would schedule an update
of its concerned queues' PPDs.
This would greatly reduce the code duplication and put the responsability to
update the CUPS queues on CUPS' shoulders instead of putting it on each
drivers'.
I plan to provide a patch, "soon".
Cheers,
OdyX
-- System Information:
Debian Release: wheezy/sid
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'),
(500, 'stable'), (150, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 3.0.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=fr_CH.UTF-8, LC_CTYPE=fr_CH.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages cups depends on:
ii adduser 3.113 add and remove users and groups
ii bc 1.06.95-2+b1 The GNU bc arbitrary precision cal
ii cups-client 1.4.8-2 Common UNIX Printing System(tm) -
ii cups-common 1.4.8-2 Common UNIX Printing System(tm) -
ii cups-ppdc 1.4.8-2 Common UNIX Printing System(tm) -
ii debconf [debconf-2.0] 1.5.41 Debian configuration management sy
ii ghostscript 9.02~dfsg-3 interpreter for the PostScript lan
ii libacl1 2.2.51-3 Access control list shared library
ii libavahi-client3 0.6.30-5 Avahi client library
ii libavahi-common3 0.6.30-5 Avahi common library
ii libc6 2.13-16 Embedded GNU C Library: Shared lib
ii libcups2 1.4.8-2 Common UNIX Printing System(tm) -
ii libcupscgi1 1.4.8-2 Common UNIX Printing System(tm) -
ii libcupsdriver1 1.4.8-2 Common UNIX Printing System(tm) -
ii libcupsimage2 1.4.8-2 Common UNIX Printing System(tm) -
ii libcupsmime1 1.4.8-2 Common UNIX Printing System(tm) -
ii libcupsppdc1 1.4.8-2 Common UNIX Printing System(tm) -
ii libdbus-1-3 1.4.14-1 simple interprocess messaging syst
ii libgcc1 1:4.6.1-6 GCC support library
ii libgnutls26 2.12.7-6 GNU TLS library - runtime library
ii libgssapi-krb5-2 1.9.1+dfsg-2 MIT Kerberos runtime libraries - k
ii libijs-0.35 0.35-7.1 IJS raster image transport protoco
ii libkrb5-3 1.9.1+dfsg-2 MIT Kerberos runtime libraries
ii liblcms1 1.19.dfsg-1 Little CMS color management librar
ii libldap-2.4-2 2.4.25-3 OpenLDAP libraries
ii libpam0g 1.1.3-2 Pluggable Authentication Modules l
ii libpaper1 1.1.24+nmu1 library for handling paper charact
ii libpoppler13 0.16.7-2 PDF rendering library
ii libslp1 1.2.1-7.8 OpenSLP libraries
ii libstdc++6 4.6.1-6 GNU Standard C++ Library v3
ii libusb-0.1-4 2:0.1.12-18 userspace USB programming library
ii lsb-base 3.2-27 Linux Standard Base 3.2 init scrip
ii poppler-utils 0.16.7-2 PDF utilities (based on Poppler)
ii procps 1:3.2.8-11 /proc file system utilities
ii ssl-cert 1.0.28 simple debconf wrapper for OpenSSL
ii ttf-freefont 20100919-1 Freefont Serif, Sans and Mono True
ii zlib1g 1:1.2.3.4.dfsg-3 compression library - runtime
Versions of packages cups recommends:
ii avahi-daemon 0.6.30-5 Avahi mDNS/DNS-SD daemon
ii cups-driver-gutenprint 5.2.7-2 printer drivers for CUPS
ii foomatic-filters 4.0.9-1 OpenPrinting printer support - fil
ii ghostscript-cups 9.02~dfsg-3 interpreter for the PostScript lan
Versions of packages cups suggests:
ii cups-bsd 1.4.8-2 Common UNIX Printing System(tm) -
pn cups-pdf <none> (no description available)
ii foomatic-db-compressed-p 20110803-1 OpenPrinting printer support - Com
ii hplip 3.11.5-2 HP Linux Printing and Imaging Syst
ii smbclient 2:3.5.11~dfsg-1 command-line SMB/CIFS clients for
ii udev 172-1 /dev/ and hotplug management daemo
-- debconf information:
cupsys/raw-print: true
cupsys/backend: ipp, lpd, parallel, scsi, serial, socket, usb, snmp, dnssd
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