Listing the "Blender Foundation" as copyright holder implied the Blender
Foundation holds copyright to files which may include work from many
developers.
While keeping copyright on headers makes sense for isolated libraries,
Blender's own code may be refactored or moved between files in a way
that makes the per file copyright holders less meaningful.
Copyright references to the "Blender Foundation" have been replaced with
"Blender Authors", with the exception of `./extern/` since these this
contains libraries which are more isolated, any changed to license
headers there can be handled on a case-by-case basis.
Some directories in `./intern/` have also been excluded:
- `./intern/cycles/` it's own `AUTHORS` file is planned.
- `./intern/opensubdiv/`.
An "AUTHORS" file has been added, using the chromium projects authors
file as a template.
Design task: #110784
Ref !110783.
Python versions before 3.10 did not have the
`platform.freedesktop_os_release` utils, use the trick based on looking
for distro-specific version files instead as fall-back (same as what was
done in the previous `install_deps.sh` bash script).
There is a `KeyError` exception when the `install_linux_packages.py` build script is ran with `--distro-id`:
```console
$ ./build_files/build_environment/install_linux_packages.py --distro-id arch
INFO: Distribution identifier forced by user to arch.
Traceback (most recent call last):
File "file:///blender/./build_files/build_environment/install_linux_packages.py", line 1656, in <module>
main()
File "file:///blender/./build_files/build_environment/install_linux_packages.py", line 1646, in main
distro_package_installer = PackageInstaller(settings) if settings.show_deps else get_distro_package_installer(settings)
File "file:///blender/./build_files/build_environment/install_linux_packages.py", line 1570, in get_distro_package_installer
return DISTRO_IDS_INSTALLERS[get_distro(settings)](settings)
KeyError: None
```
This happens because the `get_distro` function returns `None` if the distribution ID is forced with the `--distro-id` option, when it should return the provided value.
Pull Request: https://projects.blender.org/blender/blender/pulls/106461
This tool now only supports installing packages, it won't build any
dependency anymore. This implies that on most distributions, it wont
make a complete Blender build possible, some features will likely be
misisng.
By default, it only install basic dev environment to enable building
Blender with the precompiled libraries (which is the recommended way).
Passing the `--all` option will make it try to install all known
dependencies from distro packages. This is a development option,
regular Blender build should be done with the precompiled libraries.
Tested on Debian Testing, Arch, Fedora and Suse Tumbleweed.
With the new design, it should be fairly trivial to add more
distributions if desired, and maintenance should also be way simpler.
NOTE: side effect is that a working python3 interpreter is expected on
system running this script. In practice this should not be an issue,
since Python3 is installed by default in almost all regular desktop
linux installations.
