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Item15299: graphviz GV_FILE_PATH is going away

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Priority: Enhancement
Current State: Waiting for Feedback
Released In: n/a
Target Release: n/a
Applies To: Extension
Component: GraphvizPlugin
Branches:
Reported By: BramVanOosterhout
Waiting For: MichaelDaum
Last Change By: BramVanOosterhout
In fact it did go away ingraphviz 6.0.1

See https://forum.graphviz.org/t/removal-of-gv-file-path-environment-variable/2031

A possible replacement could be the -Gimapegepath command line option.

Any suggestions?

-- BramVanOosterhout - 19 Feb 2024

Meanwhile, this workaround works, although it's not very pretty (changes the directory before starting dot).

-- MarcSCHAEFER - 19 Feb 2024

The following observations are based on 
%GRAPHVIZ{ "digraph G { Workstation [image="Sun_Workstation.jpg"]; }"
   type="png" 
}%

GV_FILE_PATH support was removed form graphviz-dot August 16, 2022 [1]

The packaged graphviz version varies by distributor.

My installation (Xubuntu 22.04) shows:
  • dot - graphviz version 2.43.0 (0)

The rendered result is as expected. An oval with an image displayed.

I tried graphviz in Tim Legge's docker (OS: Alpine:edge) [2] with:
  • dot - graphviz version 7.0.0 (20221023.0053)

The result is 
$GV_FILE_PATH environment variable set; exiting: 
This sandboxing mechanism is no longer supported

00001: digraph G { Workstation [image="Sun_Workstation.jpg"];

removing $ENV{GV_FILE_PATH} and setting -Gimagepath in Core.pm gives 
Warning: file loading is disabled because the environment contains SERVER_NAME="_"
Warning: Filename "Sun_Workstation.jpg" is unsafe
Warning: No or improper image="Sun_Workstation.jpg" for node "Workstation"

00001: digraph G { Workstation [image="Sun_Workstation.jpg"]; }

I have addreseds this by unsetting SERVER_ENV while invoking dot And now the oval shows, but the Workstation image is absent
  • because dot executes in bin
  • and the images are in pub/WEB/TOPIC

Set -Gimagepath=$libraryPath works, because
  • it is set to the topic where the images are
  • or defaults to the current topic

I have issued a Pull request at GitHub foswiki/GraphvizPlugin for this item

[1] https://gitlab.com/graphviz/graphviz/-/commit/1e45fd838a7308f0a8e9712d8dbc2e486c265455 [2] https://github.com/timlegge/docker-foswiki/blob/master/Dockerfile

-- BramVanOosterhout - 23 Feb 2024
 

ItemTemplate edit

Summary graphviz GV_FILE_PATH is going away
ReportedBy BramVanOosterhout
Codebase 2.1.8
SVN Range
AppliesTo Extension
Component GraphvizPlugin
Priority Enhancement
CurrentState Waiting for Feedback
WaitingFor MichaelDaum
Checkins
TargetRelease n/a
ReleasedIn n/a
CheckinsOnBranches
trunkCheckins
masterCheckins
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Release02x01Checkins
Release02x00Checkins
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Topic revision: r3 - 23 Feb 2024, BramVanOosterhout
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