publicinbox watch path globbing

["Robin H. Johnson" <robbat2@gentoo.org>]

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Hi!

Writing to see about work in converting Gentoo's (now-broken) other
archives web interface over into using public-inbox instead.

This is the first of a few questions/bumps along the way.

For historical reasons on the scaling side, the archive maildirs are
stored by date:
watch = maildir:$REDACTED/$LISTNAME/.200001/
watch = maildir:$REDACTED/$LISTNAME/.200102/
watch = maildir:$REDACTED/$LISTNAME/.YYYYMM/
watch = maildir:$REDACTED/$LISTNAME/.202311/
etc.
(over time, directories are moved to stable read-only storage)

If a given list is low traffic does NOT get traffic in a given month,
the directory does not exist (it's created when the first mail arrives
during a calendar month).

Multiply this by ~120 lists, and it gets on the large side for a config
file: 7500+ lines just for the "watch" entries.

While I could generate the config file, I'm wondering about better
solution, to allow globbing the path.

I tried to locate a single place in the codebase where this would be
applied, but it's not clear enough to me if there's a single place that
it can easily modified.

If there's a consistent place, I think the cleanest syntax that doesn't
break existing consumers would be something like this:
[publicinbox "$LISTNAME"]
watch = maildirglob:$REDACTED/$LISTNAME/.19????/
watch = maildirglob:$REDACTED/$LISTNAME/.20????/

-- 
Robin Hugh Johnson
Gentoo Linux: Dev, Infra Lead, Foundation President & Treasurer
E-Mail   : robbat2@gentoo.org
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