[MacPorts] #60590: Macports mirrors are down?

[Clemens Lang]

Hi Ryan,

On Sun, Jun 07, 2020 at 05:24:23PM -0500, Ryan Schmidt wrote:
> (stuff about distributing PortIndex via git)

I don't think that was ever suggested. There was a suggestion to somehow
distribute PortIndexes related to Git versions, but never directly in
the Git history.

> We used to commit the PortIndex into the subversion repository every
> hour if anything had changed. Here's the last time we did that, 10
> years ago:

This antipattern only gets worse with Git, because you always get the
entire history and cannot get rid of it ever again. I see the conversion
from SVN -> Git as the last step where we ever had the chance to rewrite
our repository history.

That doesn't really mean we can't use Git's version history in relation
to the PortIndex, though. We could build the various platform-specific
PortIndexes once a day, and serve them indexed with a Git commit ID,
which would give users (ideally in an automated fashion) an idea of what
state the PortIndex represents, and which ports need to be (re-)indexed
locally.

I've checked, and my PortIndex is 1.5M when gzipped. This is the range
where I would say we could get away with only serving a PortIndex in its
entirety once a day, have port(1) download the latest one, and re-index
any ports locally that aren't (a) in that PortIndex, or (b) have been
committed after that.

WDYT?

-- 
Clemens