[Bf-committers] Running Blender from Command Line skips Auto Execution of Driver Scripts

[Chris Lee]

Thank you for the advice, both on CLI and concrete info to be supplied for
a help request. I am new here.
Hi, by the way.

   1. What I did on Monday does appear to be the solution I need.
   2. What I supplied in my post was a breakdown of what I did.
   3. What I am looking for input regarding the solution I found, in case I
   have missed something.
   4. Also, is it a bug? That the Auto Execute scripts are not running from
   command line, when the option is selected and saved in the file, to run
   Auto Execute scripts on start.

For exact reference:

   - I was running this command: "C:\Program Files\Blender
   Foundation\Blender\blender.exe"  F:\mport\scanimport\avatar.blend -P
   "F:\mport\scanimport\new avatar.py" "F:\mport\scanimport\\".  Adding '-y'
   at the end solved the issue. I have yet to get confirmation from my
   programmer that it runs well in his system for what he is trying to do, but
   it worked on my machine. The script he is running will move control points
   on a human avatar to match body scan data. What I set up in drivers will
   adjust the head size and height based on the neck height.
   - The output I was getting that was messed up by the drivers not auto
   running it's script was to have the head scaled down:
   https://www.dropbox.com/s/mu7hex3r0rb2hkd/Screenshot%202014-07-09%2015.14.02.png
   - The correct output, which I got from adding '-y' is:
   https://www.dropbox.com/s/mu7hex3r0rb2hkd/Screenshot%202014-07-09%2015.14.02.png


Kind Regards,
Chris "*Chips*" Lee
Mobile: 0410155111

Infin8eye <http://infin8eye.carbonmade.com/>
Knight of the DLF
IGDA Sydney founding member


On 9 July 2014 14:43, Campbell Barton <ideasman42 at gmail.com> wrote:

> When asking for help its good to give some concrete info.
>
> - the exact commands you tried.
> - the output you got.
> - the output you want/expected.
>
>
> On Wed, Jul 9, 2014 at 2:06 PM, Chris Lee <infin8eye at gmail.com> wrote:
> > I was advised I may be able to get a definitive answer here. I was trying
> > to solve this issue on Monday and I think I did. I would like input about
> > what I found and whether or not this is a bug in Blender or intended
> > behaviour.
> >
> >
> -----------------------------------------------------------------------------------
> >
> > Basically Blender normally allows you to have drivers that contain auto
> run
> > scripts, such as what I have done.
> >
> > Recently it was pointed out as a security vulnerability, that opening an
> > untrusted file from the web, could run a hidden python script on the
> user's
> > machine without them knowing.
> >
> http://blender.45788.x6.nabble.com/Please-turn-off-Auto-Run-Python-Scripts-by-default-td108971.html
> >
> > So by default it is now disabled, but there is an option in the user
> > preferences to enable it by default.
> > Here, under Auto Execution:
> >
> https://www.dropbox.com/s/vtxkg5f48mmfy40/Screenshot%202014-07-09%2013.25.34.png
> >
> > It appears though that there is an oversight, and running a command line
> > blender instance, will do so before the auto execute option is enabled.
> > Which means the script my programmer wrote will open Blender and run
> > through it's process, but the drivers will not work, that I had put in
> > place to control an object related to another object, controlled by the
> > script.
> >
> > So as mentioned here, you can force scripts to run using -y at the end of
> > the command prompt:
> >
> http://blender.stackexchange.com/questions/7673/auto-run-scripts-security-options
> >
> > I had also followed the link within Blender regarding Auto Execution.
> > I followed the link to here:
> >
> http://www.blender.org/documentation/blender_python_api_2_70_release/bpy.types.UserPreferencesSystem.html#bpy.types.UserPreferencesSystem.use_scripts_auto_execute
> >
> > So I don't know if this may help within a command line run blender python
> > script if -y is not used:
> > "use_scripts_auto_execute"
> >
> >
> -----------------------------------------------------------------------------------
> >
> > On Monday absolutely nobody I talked to online could advise me (apart
> from
> > the kind chap who suggested I check the mailing list, and that it had
> come
> > up in another thread here). Partly because I am in Sydney Australia and
> all
> > of Europe would have been asleep, so irc was quiet. I am hoping that
> > somebody here actually knows how this works.
> >
> > Please get back to me with your thoughts.
> >
> > Kind Regards,
> > Chris "*Chips*" Lee
> > Mobile: 0410155111
> >
> > Infin8eye <http://infin8eye.carbonmade.com/>
> > Knight of the DLF
> > IGDA Sydney founding member
> > _______________________________________________
> > Bf-committers mailing list
> > Bf-committers at blender.org
> > http://lists.blender.org/mailman/listinfo/bf-committers
>
>
>
> --
> - Campbell
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