It is not actively maintained, third-party, javascript wrapper for GitHub
API. The v7 version has issues and most importantly, we don't need a
JavaScript interface to create a comment. Use the first-party CLI tool
and jq.
Sort artifacts by name while at it.
GitHub cache action doesn't allow updating cache with the same key. We
workaround this by saving the cache with a unique key each time (added
timestamp). This works fine, but since there is a limit on cumulative
storage size for all caches, it can force the master branch cache to be
evicted if a lot of PRs are updated. Cache is evicted with LRU policy,
so as long as master branch cache is used it should stay alive, but it
can happen that only PR specifc caches were only used. As a reminder,
PRs can access the master cache, but they are isolated from each other.
Because of this, it is important to keep the master cache, which is
available to all, alive longer.
The solution is to remove all old caches per branch. This is done in a
separate workflow that validates all cache items and removes ones that
would never be used anyway. If PR is closed all caches per branch are
removed. In other cases most recently used one is preserved.
It is done in a separate workflow to limit cache manipulation access.
GitHub workflows triggered by pull_request event are run in the context
of the fork and does not have access to our token, which is good thing.
Also it is quite awkward to get PR number which triggered build
workflow, so just do a full cleanup pass.
Not sure if this is particularly useful, but we might as well generate
these as well. Also use the docutils wrapper since that's what the meson
build does.
This uses an alpine 3.15 container, which should be one of the oldest
distros that mpv master can compile on and that uses ffmpeg 4.4. Some
functionality is missing due to library versions being too old on
alpine, e.g. wayland, mujs, and pipewire.
The alpine build is also explicitly minimal, to test builds in
conditions where many common mpv features may not be available.
Homebrew finally pulled the plug on lua 5.1*, and it is no more. So we
have to change to a different lua package and the only other choice is
luajit (no 5.2 in homebrew). We used to use luajit for the ci, but
649556b2b6 switched it to lua 5.1. As
explained there, luajit 2.0 was horribly bugged and not usuable for mpv
and the build had to do dumb hacks to work around it. I expected 5.1 to
last a bit longer than a couple of years, but luckily it seems like
luajit in homebrew now pulls a luajit 2.1 version (some rolling release
thing or however upstream works). The details don't really matter for
us since 2.1 does not have all the awful issues that 2.0 used to have.
So just switch to luajit again.
*: 57d73df3ba
This package isn't available for i686 anymore, and not worth the hassle
to only install it for win64 since it isn't particularly useful.
See: fff2fa3711
