OCIO configs inconsistencies when using the command line flag

[Minkiu]

Hello there,

thanks for the great software, couldn't find an issue for this, so made one.

I found what appears to be a bug in the way that DJV handles configs, sometimes it duplicates them, sometimes it removes them... so here's how to reproduce the error.

First I add aces_1.1 inside the DJV directory /tmp/DJV-2.0.8-Linux/etc/Color/aces_1.1/config.ocio

Then, alternate between the following commands:
LD_LIBRARY_PATH=lib bin/djv -ocio_config /tmp/DJV-2.0.8-Linux/etc/Color/nuke-default/config.ocio -ocio_display default -ocio_view sRGB -ocio_image sRGB

and

LD_LIBRARY_PATH=lib bin/djv -ocio_config /tmp/DJV-2.0.8-Linux/etc/Color/aces_1.1/config.ocio -ocio_display ACES -ocio_image "ACES - ACES2065-1"

When going into the Image > Colorspace > Config setting, it changes in an inconsistent way, I think it might be following a pattern, but not really sure about it; the trouble starts when you try to load the nuke-default after having loaded the aces (so in the third command).

My expectation is that it loads the config I pass, if it doesn't exists add it otherwise laod the known one, and doesn't mess with the other ones.

I made a small video demonstrating the issue:
https://user-images.githubusercontent.com/1800151/113329796-ede90600-9315-11eb-85f4-a0c87fb930b0.mp4

Sample of the config when things are wrong (aces shows duplicated):

"djv::UI::Settings::ColorSpace": {
        "Configs": [
            {
                "Display": "sRGB", 
                "FileColorSpaces": {
                    "": "", 
                    "OpenEXR": "lnh"
                }, 
                "FileName": "/tmp/DJV-2.0.8-Linux/etc/Color/spi-anim/config.ocio", 
                "Name": "spi-anim", 
                "View": "Film"
            }, 
            {
                "Display": "sRGB", 
                "FileColorSpaces": {
                    "": "", 
                    "Cineon": "lg10", 
                    "DPX": "lg10", 
                    "OpenEXR": "lnh"
                }, 
                "FileName": "/tmp/DJV-2.0.8-Linux/etc/Color/spi-vfx/config.ocio", 
                "Name": "spi-vfx", 
                "View": "Film"
            }, 
            {
                "Display": "ACES", 
                "FileColorSpaces": {
                    "": "ACES - ACES2065-1"
                }, 
                "FileName": "/tmp/DJV-2.0.8-Linux/etc/Color/nuke-default/config.ocio", 
                "Name": "nuke-default", 
                "View": "sRGB"
            }, 
            {
                "Display": "ACES", 
                "FileColorSpaces": {
                    "": "ACES - ACES2065-1"
                }, 
                "FileName": "/tmp/DJV-2.0.8-Linux/etc/Color/aces_1.1/config.ocio", 
                "Name": "aces_1.1", 
                "View": "sRGB"
            }
        ],

And I made Gist with the Log:
https://gist.github.com/Minkiu/981f4e39670a945a51b0c1c6488f0f1a

Might be related to: #409

Hope this helps,
Cheers!

[darbyjohnston]

Hi, sorry for the delay! Thanks for the detailed bug description, I'll try to recreate it and see if I can fix it for the next version.