jochen
b771794f1c
ADR 0227 rule 8 / ADR 0240 rule 2 refuse a module with no health check of another kind beside a tool check. mesh-mail-notifier has one process (notify); wiring mail_notifier_health as its manifest health, as the review note's wording suggested (mirroring mesh-mail's watch/mail_health), trips that rule because mesh-mail also has keep (kind unit) beside watch. mail_notifier_health stays built, tested and callable; notify's manifest health stays kind unit until the lead decides how a one-process module gets this automatically.
mesh-mail-notifier — the default holder of mail-notifier
Built from mesh-mail's source (novox/hq ADR 0378 §9, as amended by ADR 0379, issue 800 part B): it carries a
byte-identical copy of mesh-mail's event shape (mailevent.go, pinned by copies_test.go, the way
modules/networkmanager's uplink-tools carries ifwatchd's own file, ADR 0241). Nothing here names
Betterbird (ADR 0379 §3), and nothing here reaches a mailbox: it only hears what mesh-mail already said.
What it does
It claims mail-notifier (held once per machine, needing node-notifier there) and shows each new inbox mail
on this machine's notifier, through node-notifier.send, at most once:
- quiet during a first sync or a resync (mesh-mail already says nothing then,
imap.go~387) - quiet for a mail from the account's own address (its address, from
mail-store.accounts; not known, the notice is shown) - quiet for a mail already marked read (
\Seenin its flags) - quiet for anything outside the inbox
- of one account's qualifying mail within a sliding minute, the first three are shown one by one; the rest of that minute's mail is folded into one notice naming the count and the latest sender, rather than shown one by one
A notice node-notifier.send refuses stays pending and is tried again, at most once a minute, without holding
up any other account's notice; nothing is deleted before it is shown. Each notice shown emits this module's
own event shown (account and message id, never sender or subject), and is kept in its own state (shown) so
a redelivered event is never counted or shown twice — by the mail's message id wherever it has one, so a
UIDVALIDITY reset cannot make an already-shown mail look new.
Where it runs
Its own account (runs-as), because it hears mesh-mail's restricted stream MAIL (novox/hq ADR 0376 §2):
the machine's runtime runs as the operator's account, which every agent shares and which never hears a
restricted stream. Held once per machine (wherever mail-notifier is assigned); the operator grants it the
accounts it announces, in mesh-mail's trusted setting grants (mail-store's stream).
Tools
| tool | does |
|---|---|
mail-notifier.status |
every account it is granted, when it last showed each one a notice, and any notice still failing to send (its count, last error, since when). Read-only |
mail_notifier_health |
how it is: unhealthy once a notice has failed to show for more than ten minutes, healthy otherwise, even mid-retry. Not (yet) the node-engine's own check of notify — one process cannot be judged only by its own tool (ADR 0227 rule 8); notify's manifest health stays unit until the lead decides how a one-process module gets this automatically. Read-only |