APPVEYOR: nasm.us is down often, breaking AppVeyor builds

[DrMcCoy]

For some reason, nasm.us, the home for the NetWide Assembler, is down quite often. Our AppVeyor config installs it via chocolatey, and when nasm.us is down, our AppVeyor builds fail.

(Chocolatey then also "mocks" us by saying that if we were a licensed chocolatey, this wouldn't have happened (because they offer a private package cache to paying users). That's $96 a year, though...)

Is there a way for us to cache the nasm package ourselves? Or maybe find a mirror and tell chocolatey to try the mirror if the usual place fails?

[ccawley2011]

It should be sufficient to add the "C:\Program Files\NASM" to the cache section of .appveyor.yml. This page also has some information about caching chocolatey packages, although I'm not sure how much is relevant since nasm is an installable application rather than a portablle application.

In the long term though, the best solution may be to create a vcpkg package for xvidcore (and libfaad), which would remove the need for us to install nasm at all.

[m-flak]

Any reason why nasm is used over yasm?