Support unar

[alexreg]

The latest rarfile package has support for using the unar insterad of the unrar program. I believe you already use this in the master branch. Could we add support to use unar, please? Ideally both as a fallback for unrar, as well as setting an environment variable, e.g. UNRAR_TOOL=unrar vs. UNRAR_TOOL=urar. This would be the final hurdle to overcome for getting my macOS Homebrew formula accepted.

[morpheus65535]

I'm open to a PR dealing with this. Maybe having a command line argument to use unar. You have to deal with this in bazarr.init.init_binaries() but also in libs.subliminal_patch.providers.* and subzero. I would use an env variable to pass the unar usage boolean to those two modules.

[alexreg]

Sounds good. I looked at submitting a PR myself, and I fixed it in init_binaries, but wasn't sure the best way to patch subliminal & subzero. I agree, an env var is the best way to deal with this.

[morpheus65535]

I'll close this one while waiting for your PR.

[alexreg]

@morpheus65535 Ah, I think you misunderstood. I didn't know how to create a PR. I had no idea what to do with patching those dependencies. I mean, I could have done something very hacky, but would rather not!

[morpheus65535]

Should be good in upcoming beta.

[alexreg]

@morpheus65535 Thanks!