touch-packages team mailing list archive

[Till Kamppeter <1538701@xxxxxxxxxxxxxxxxxx>]

Here is the merge proposal:

https://code.launchpad.net/~till-kamppeter/lxc-android-config/cups-
override/+merge/280585


** Changed in: canonical-devices-system-image
       Status: New => In Progress

** Changed in: lxc-android-config (Ubuntu)
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1538701

Title:
  For printing on Ubuntu Touch with daemons running on-demand, correct
  *.override files are needed

Status in Canonical System Image:
  In Progress
Status in lxc-android-config package in Ubuntu:
  In Progress

Bug description:
  I am working on getting the Ubuntu printing stack onto the phone, see
  bug 1520346, bug 1519914, and bug 1509423 (see details about my setup
  in these bug reports).

  For that the packages cups-daemon, cups-browsed, avahi-daemon,  cups-
  core-drivers, cups-filters-core-drivers, cups-client, and their
  dependencies are planned to be added to the system.

  In addition, the system needs to be configured to run avahi-daemon,
  cups-browsed, and cupsd on-demand. To do so, the following three
  *.override files are needed in /etc/init/:

  avahi-daemon.override:

  ----------
  # avahi-daemon - mDNS/DNS-SD daemon
  # overrides for touch
  # do not start avahi-daemon on boot
  manual
  ----------

  cups-browsed.override:

  ----------
  # cups-browsed - Bonjour remote printer browsing daemon
  # overrides for touch
  # do not start cups-browsed on boot
  manual
  # do not respawn when cups-browsed shuts down by itself
  normal exit 0
  # start cups-browsed in auto-shutdown mode, creating queues for native IPP
  # network printers, and using IPv4 IPs to reference remote printers
  exec /usr/sbin/cups-browsed --autoshutdown=avahi -o IPBasedDeviceURIs=IPv4 -o CreateIPPPrinterQueues=Yes
  ----------

  cups.override:

  ----------
  # cups - CUPS Printing spooler and server
  # overrides for touch
  # socket activation
  start on socket PROTO=inet PORT=631 ADDR=127.0.0.1
  # do not respawn when cupsd shuts down by itself
  normal exit 0
  # start cupsd in auto-shutdown mode
  exec /usr/sbin/cupsd -f -l
  ----------

  I have tested these files on a Nexus 4 with the current Xenial
  development environment:

  ubuntu-device-flash touch --channel=ubuntu-touch/devel-proposed/ubuntu

  A print dialog working according to the principles of the attached
  script phone-print.sh will print in this environment and all daemons
  will terminate when printing is done.

  Run the script always with three arguments:

  ./phone-print.sh <seconds> <queue> <file>

  <seconds> is the time how long the printer list is shown, <queue> is
  the queue on which you print the test job, and <file> is the file to
  be printed, preferably PDF. The script will at first show the printer
  list updating every second, then print a job and afterwards observe
  the cups-related processes, so that it demoes nicely the process.

  A merge proposal for the *.override files will be added to this bug
  report.

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