Add Resolve optional pre-hook to fails if non-studio version >= 21

[rdelillo]

Changelog Description

Resolve 21.1 removed the python integration with non-studio version, making the ayon-resolve addon incompatible:
https://www.reddit.com/r/davinciresolve/comments/1wafb08/davinci_resolve_211_release_notes/

# Notes:
We have moved the ability to script in Python to the Studio version.
The Python API was being used to hack studio features into the free version.

DaVinci Resolve relies on studio license sales to pay for the engineering team.
Unlike subscriptions, which have become normal but lock people's work up unless you pay monthly, we want to offer a differentiation from charging monthly license fees.

Changes:

• Detect current DaVinci Resolve version and flavor from executable, raise if not supported.

Additional review information

Testing notes:

1. Ensure it still works with Resolve Studio 21.1
2. Ensure it does not work anymore with Resolve 21.1

[BigRoy]

Seems ok, but not too keen honestly on the added startup time.

[Copilot]

🟢 Approval recommended

No unresolved blocking issues were identified.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 0 new
• Review effort level: Lite

[BigRoy]

Version does not get detected correctly for me on Windows, this seems to be in cache:

{'mtime': 1770830676.0, 'version': '\r'}

[rdelillo]

Version does not get detected correctly for me on Windows, this seems to be in cache:

{'mtime': 1770830676.0, 'version': '\r'}

Yeah I tried to reproduce on my machine could not find the same bug as you.
I tried Resolve 20.3 20.2 21 (studio and free) on Windows, I always end-up with the correct version returned by Resolve.exe almost immediatly. I've also tried to test with Resolve already opened still no issue on my side.

This makes me thing the capturing -v output from a subprocess is not as reliable as we we hoped.

I've changed the logic to read version from shipped ReadMe.html instead.
Not ideal but hopefully more trustable than the executable return. I retested with all of the version above, this gives me expected results. Note that the result is not cached anymore, (reading from ReadMe or a cache takes as much time).

[BigRoy]

Works, just come cosmetics left.