[Bug 1270025] Re: graphviz package does not configure plugins

[Martin Pitt]

For me it fails in a different way:
$ dot -Tpng ./Dokumente/computer/talks/efficient-bug-handling/bug-lifecycle.dot > /tmp/bug.png
Format: "png" not recognized. Use one of:

(sic - I didn't forget to copy&paste anything, it's really looking like
that). Confirming that "dot -c" fixes that, this should indeed go into
the postinst. I'll ask Matthias to confirm, and then upload that.

** Changed in: graphviz (Ubuntu)
       Status: New => Confirmed

** Changed in: graphviz (Ubuntu)
       Status: Confirmed => Triaged

** Changed in: graphviz (Ubuntu)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1270025

Title:
  graphviz package does not configure plugins

Status in “graphviz” package in Ubuntu:
  Triaged

Bug description:
  After installing graphviz 2.36.0-0ubuntu1 in Trusty, I can no longer
  generate any PNG images with the 'dot' tool. The reason for this is
  that the package scripts do not configure the installed graphviz
  plugins:

  To reproduce:
  ----

  $ dot -Tpng my_file.dot > my_file.png
  There is no layout engine support for "dot"
  Perhaps "dot -c" needs to be run (with installer's privileges) to register the plugins?

  
  $ sudo dot -c
  [sudo] password for thomi: 

  
  $ dot -Tpng my_file.dot > my_file.png
  # works now.

  
  I think the 'sudo dot -c' step ought to be done as part of the package installation scripts.

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