Files
mesh-delivery/modules/mesh-delivery-builder/cmd/mesh-delivery-builder/stored.go
T
jschoubben 80a0183567 Build a done key again when the artifact store no longer holds its blob, and on the controller's artifacts-gone (issue 1937)
The store's nightly collector deleted the bare blobs of node-tools', mesh-host's and the forge bridge's done keys, which
the controller had never taken in, and the builder kept them done: their next delivery would refuse. The builder now asks
the controller's held before it leaves a done trunk key done (once per key per process, at its start and on each module
value), claims a key whose blob is gone building as a new revision and says so in its log and the key's step, and hears
artifacts-gone, said when a take-in found a gone blob. No timer: a start, a value or an event.
2026-10-24 04:17:01 +02:00

62 lines
2.2 KiB
Go

package main
import (
"context"
"encoding/json"
"fmt"
"sort"
"strings"
"github.com/nats-io/nats.go/jetstream"
"git.novox.be/novox/mesh-sdk/go/delivery"
"mesh-delivery-builder/internal/build"
)
// eventsStream is the stream every module's and role's events are on, where the controller makes the builder's durable
// consumer of artifacts-gone (mesh-controller internal/broker EventsStream).
const eventsStream = "EVENTS"
// toolCaller calls a tool or a seat verb as the builder's own account (mesh-sdk process.Conn.Call).
type toolCaller func(key string, body any) (json.RawMessage, error)
// storedVia is build.Builder's Stored: it asks the controller's verb held (mesh-sdk delivery.HeldVerb; novox/hq issue
// 1937) and answers the references the store no longer holds. One it could not ask about, with none gone, is an error:
// the key is then left done, and the controller's take-in still refuses a gone blob.
func storedVia(call toolCaller) func(ctx context.Context, references []string) ([]string, error) {
return func(_ context.Context, references []string) ([]string, error) {
raw, err := call(delivery.HeldVerb, map[string]any{"references": references})
if err != nil {
return nil, fmt.Errorf("asking %s: %w", delivery.HeldVerb, err)
}
a, err := delivery.DecodeHeldAnswer(raw, references)
if err != nil {
return nil, err
}
if len(a.Gone) == 0 && len(a.Unknown) > 0 {
var why []string
for r, w := range a.Unknown {
why = append(why, r+": "+w)
}
sort.Strings(why)
return nil, fmt.Errorf("the artifact store could not be asked about %s", strings.Join(why, "; "))
}
return a.Gone, nil
}
}
// heardGone takes one artifacts-gone event in: acknowledged, then handed to the builder, which asks the store and builds
// the key again. A body that is not one is said and acknowledged, so it is not handed over again.
func heardGone(ctx context.Context, b *build.Builder, m jetstream.Msg, logf func(string, ...any)) {
e, err := delivery.DecodeArtifactsGone(m.Data())
if ackErr := m.Ack(); ackErr != nil {
logf("acknowledging %s: %v", m.Subject(), ackErr)
}
if err != nil {
logf("%s holds what is not %s, left: %v", m.Subject(), delivery.ArtifactsGoneEvent, err)
return
}
b.ArtifactsGone(ctx, e)
}