test_shaders.py on OS X: FileNotFoundError: [Errno 2] No such file or directory: 'glslangValidator'

[khronosgroup]

test_shaders.py on OS X: FileNotFoundError: [Errno 2] No such file or directory: 'glslangValidator'

[Kangz]

You need to have glslangValidator, spirv-as and spirv-val in your PATH, maybe it is another one that's missing? Adding them all to the PATH worked for me. Also you need to make sure glslang is the at the commit listed in the .travis.yaml if you want things to pass CI.

[billhollings]

@Kangz Thanks for your suggestion.

I added the SPIRV-Tools/build/tools directory to my $PATH, and I can now launch both spirv-as and spirv-val from command line in the SPIRV-Cross directory.

Sadly it doesn't help. Python is still not finding glslangValidator...even though it too is accessible from the command line in the SPIRV-Cross directory.

I'm using Python 3.5.2...if that could conceivably matter.

[HansKristian-Work]

This is really weird, yes. I tried this on a 10.10 box after building glslang/spirv-tools fresh, and it worked fine.

PATH=$PATH:../glslang/build/Standalone/:../spirv-tools/build/tools ./test_shaders.py shaders-msl --metal

If I copy all the binaries to /usr/local/bin then it worked fine without PATH.
Is your python3 binary linking to someplace weird? I have mine in /usr/local/bin at least.

If you try this in python3 interpreter, does it pick up PATH properly?

import os
print(os.environ['PATH'])

[billhollings]

Arrrgghh!!!

Okay...I've figured this out finally.

In my terminal shell PATH env var, I was using ~/... instead of the absolute path through /Users/bill/....

This works fine when running glslValidator from the command line...but not from within test_shaders.py .

I was delayed in figuring this out because...arbitrarily...and frustratingly...using ~/... in the PATH-setting pre-command you use above...DOES work! It gets resolved to /Users/bill/... before it is appended to the PATH and passed to python3...whereas the original shell PATH appears in python3 with the ~/... values still intact.