How to run scripts/generate_bindings.py ?

[alecjacobson]

The help says:

Syntax: scripts/generate_bindings.py <path_to_c++_files>

If I try:

python scripts/generate_bindings.py ~/Repos/libigl/include/igl/cotmatrix.h

I get this error

Collecting cpp files for parsing...
Parsing header files...
Traceback (most recent call last):
  File "scripts/generate_bindings.py", line 197, in <module>
    with open("headers.dat", 'rb') as fs:
FileNotFoundError: [Errno 2] No such file or directory: 'headers.dat'

[teseoch]

try setting load_headers = True to False

[alecjacobson]

Thanks! I also realized that the argument should be a path containing .h/.cpp files without a final /. So,

python scripts/generate_bindings.py ~/Repos/libigl/include/igl

but not

python scripts/generate_bindings.py ~/Repos/libigl/include/igl/

[teseoch]

ok... I think that script was built for internal usage :)

[alecjacobson]

Make sense. Is there another recommended way to make a new binding from scratch? Just copy-paste the documentation?

[teseoch]

i think we should fix the script, it is super useful :)

In particular add the ability to skip existing bindings

[alecjacobson]

Sounds good. I'm hoping to go after all the functions in the other libigl modules, so maybe time to freshen this script to also work with those.

[teseoch]

the script uses clang to generate the code. https://github.com/libigl/libigl-python-bindings/blob/master/scripts/parser.py

The reason of the headers.dat is that it requires time to compile each file and get the ast, while generating the code from the ast is quick. I dont think this feature is necessary anymore as the generation is now ok