glinfo is a small utility to assess the OpenGL capabilities of the current environment. When called without parameters, the command will create a hidden OpenGL context using Qt and write to standard output contents similar to:
LibGL Vendor: NVIDIA Corporation
Renderer: GeForce GTX 980/PCIe/SSE2
Version: 4.6.0 NVIDIA 388.13
Shading Language: 4.60 NVIDIA
If the context can't be created, the command will output:
ERROR: Unable to create an OpenGL context.
Most of the (short) code is taken directly from the source code of Qt's qtdiag utility. Since standard output writing can have buffering issues on Windows (see ETK-1517, and the open Qt bug: https://bugreports.qt.io/browse/QTBUG-67860), the command includes a -f option to write the contents to a file (the contents are still written to standard output regardless). The contents of the file are UTF-8 encoded.
An environment.devenv.yml file is provided for local development, and the compilation itself should work fine on conda build. Currently the conda package can only be reliably built on win64 (seems to be a problem with the Qt package used on linux64 + py27).