Improve Mutagen Sync Efficiency For M2

[tdorchak]

The biggest hangup I am experiencing using warden is the time it takes to complete the initial synchronization. I have added the following to my .env file to help:
WARDEN_SYNC_IGNORE=vendor/**,var/**,pub/static/**

With this setting, I need to run all of my composer commands in warden shell and then run a composer install outside of warden so I can debug--not ideal but workable.

I have to imagine that the generated directory is also causing the sync process to be slow, but I cannot work around having that sync back to my local.

I'm wondering if it would be possible to have some directories sync using mutagen's one-way-replica mode to improve sync time.

[navarr]

I definitely agree that initial synchronization is way too slow. I don't think one-way sync here works as a general purpose solution, though.

For example, I often insert debugging code in vendor/magento/* files, or test potential patches there. I regularly want these directories to be two-way-synced.

That said, I don't understand why mutagen initial sync takes so long. I reckon an rsync would be faster at this point, so I have to wonder what's really going on - and/or if its a bug with Mutagen

[tdorchak]

@navarr good point on the vendor use case. I haven't needed to modify anything like that since i've made the change, but that is something I have done in the past from time to time.

[navarr]

A follow-up for me, specifically, I had an antivirus with real-time file protection which was slowing sync down by 15x at least.