Write(Modify) Extra File in HDAs

[faxingberlin]

 

Hi, there.
I have some HDAs that use an external python module. I'd like to package the module into the HDAs so that external files are not necessary to use them.
Currently I am embedding the python module using the “Custom Script” event handler, and I want to read file from “Extra Files” Tab.

 

I want to write & read files from HDA's Extra Files Tab.

Because I don't want to write & read files from External Directory.

If I changed computer, I should move not only HDA asset but related External Files.

I want to embed all files related to HDA.

The Extra File is just txt file or json file.

 

I already ask same question to sidefx forum. But, I receive some useful tips.

 

I try HDADefinition Module but I cannot find to write in HDA.

 

I spend about two weeks.. otl OTL

 

Is there any way to write in the HDA's Extra Files?

 

 Link I asked same question

Edited January 12, 2017 by faxingberlin

[f1480187]

Writing something into External Files will override HDA definition every time and it will affect all locked instances for all users.

hda = kwargs['type'].definition()
old_content = hou.readFile('opdef:/Sop/mytype?MyExternalFile.txt')
new_content = 'There was content with length of %d.' % len(old_content)
hda.addSection('MyExternalFile.txt', new_content)

Using embedded Python module will not modify HDA definition. There is function for it in Houdini's toolutils module:

import toolutils
mymodule = toolutils.createModuleFromSection('mymodule', kwargs['type'], 'mymodule.py')

 

 

Edited January 13, 2017 by f1480187

[faxingberlin]

7 hours ago, f1480187 said:

Writing something into External Files will override HDA definition every time and it will affect all locked instances for all users.

hda = kwargs['type'].definition()
old_content = hou.readFile('opdef:/Sop/mytype?MyExternalFile.txt')
new_content = 'There was content with length of %d.' % len(old_content)
hda.addSection('MyExternalFile.txt', new_content)

Using embedded Python module will not modify HDA definition. There is function for it in Houdini's toolutils module:

import toolutils
mymodule = toolutils.createModuleFromSection('mymodule', kwargs['type'], 'mymodule.py')

 

 

I really appreciate of your answer, Illusionist.

Thanks! I will try right now.