I thought one of the reasons generic output didn't exist is that it's
a malware enabler. If OpenSCAD can write arbitrary files it becomes
much more dangerous to run random code that you run across.
On Tue, Sep 21, 2021 at 6:54 PM William F. Adams via Discuss
discuss@lists.openscad.org wrote:
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Date: Tue, 21 Sep 2021 22:53:51 +0000 (UTC)
Subject: [OpenSCAD] Re: text output
Yes, but one still has to do that, for each file, for each time it's run, and set it up for each project. That's a lot of duplicated effort.
I don't want to use OpenSCAD as a word-processor --- I want to use it as a programmatic system for generating geometry and associated files:
Lots of folks have had this need, and lots of folks have solved it in a number of ways (and I appreciate the right-click menu entries which make working w/ the Log easier), but it would help a lot of folks work much more comfortably and efficiently to have a way to write out text files which are directly usable and with the ability to control the file extension.
What would be involved in creating a Bounty for this?
How should it be worded?
Anyone able to estimate how much would be needed to attract the attention of a developer?
William
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Date: Tue, 21 Sep 2021 22:53:51 +0000 (UTC)
Subject: [OpenSCAD] Re: text output
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Adrian Mariano wrote:
I thought one of the reasons generic output didn't exist is that it's
a malware enabler. If OpenSCAD can write arbitrary files it becomes
much more dangerous to run random code that you run across.
That's why it would be an option only enabled by the user if they wished.
It could be paired w/ a security check at install, so it would only be activated if folks chose to enable it when installing when suitably informed.
William
On 9/21/2021 3:58 PM, Adrian Mariano wrote:
I thought one of the reasons generic output didn't exist is that it's
a malware enabler. If OpenSCAD can write arbitrary files it becomes
much more dangerous to run random code that you run across.
Yeah, reading and, especially, writing arbitrary files is terrifying.
I don't think it would be difficult at all to add a feature, one way or
another, that would let you emit unadorned text to the "echo" output
stream, or to create a new kind of output that consists only of this
unadorned text.
But at the same time it is hard to get excited about the need for it,
when trivial post-processing has the same effect.
In your OpenSCAD program, echo your data, with each line as one string.
Have a script run your OpenSCAD program. Capture the output, perhaps
explicitly into the "echo" output type or perhaps as a side effect of
generating STLs. Strip off the echo noise and any other noise with a
trivial sed invocation:
sed -n 's/^ECHO: "\(.*\)"$/\1/p' $file
Here's the snippet that I use to do something similar:
openscad -D "\$content_inventory=\"$2\"" -o junk.stl "$1" 2>&1 |
tr -d '\r' |
sed -n -e 's/^ECHO: "PART", "\(.*\)"$/\1/p' |
sed 's/", "/ /g'
The corresponding OpenSCAD snippets look like:
echo("PART", name, camera);
On Tue, 2021-09-21 at 18:58 -0400, Adrian Mariano wrote:
I thought one of the reasons generic output didn't exist is that it's
a malware enabler. If OpenSCAD can write arbitrary files it becomes
much more dangerous to run random code that you run across.
Wouldn't it reduce the likelihood of a security breach if you could
call it with a command line option, something like
openscad -e >filepah/name blah blah
On 9/21/2021 6:56 PM, larry wrote:
Wouldn't it reduce the likelihood of a security breach if you could
call it with a command line option, something like
openscad -e >filepah/name blah blah
That already works, give or take the fact that the output is noisy.
What some people are asking for is the ability to have the OpenSCAD
program say "write <this text> into a file named <this>".
I already make Bills of materials and assembly instructions using echo()
and Python and $variables to enable it. So I set $bom=2 on the command line
and produce a .echo file and then parse the result. I also scrape Markdown
comments from the code. I set $explode to 1 to make exploded assembly views
to go into the assembly instructions. It is all OpenSource, an example
here:
https://github.com/nophead/NopSCADlib/tree/master/examples/MainsBreakOutBox.
If I wanted to output g-code or SVG I would just add another $variable that
enabled some different echos and write a simple Python script to set that
on the command line and process the echos into the format I want.
On Wed, 22 Sept 2021 at 03:05, Jordan Brown openscad@jordan.maileater.net
wrote:
On 9/21/2021 6:56 PM, larry wrote:
Wouldn't it reduce the likelihood of a security breach if you could call
it with a command line option, something like
openscad -e >filepah/name blah blah
That already works, give or take the fact that the output is noisy.
What some people are asking for is the ability to have the OpenSCAD
program say "write <this text> into a file named <this>".
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