jschoubben
a8bcd2abb9
The builder's one consumer of EVENTS now consumes the indexer's manifest-accepted and the condition keeper's condition-cleared; a heard source revision stands for the forge's merge. Numberer.Heard marks a version published, refused or removed and wakes a floor whose seat was silent; its consumer of each <seat>.events waits on the seat family's stream form (asked of A1). Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig
64 lines
2.0 KiB
Go
64 lines
2.0 KiB
Go
package versions
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import (
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"context"
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"fmt"
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)
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// The registry seats' events the builder hears on its durable consumer of each `<seat>.events` (design 51 *How a
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// publish ends*, DLV-B4).
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const (
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HeardPublished = "published"
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HeardRefused = "refused"
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HeardRemoved = "removed"
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)
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// Outcome is the body of a registry seat's published, refused and removed (mesh-contracts parts/registry Outcome), the
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// fields the builder reads.
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type Outcome struct {
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Name string `json:"name"`
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Version string `json:"version,omitempty"`
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Digest string `json:"digest"`
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Kind string `json:"kind"`
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Holder string `json:"holder"`
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Reason string `json:"reason,omitempty"`
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}
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// Heard takes one seat event in: a numbered version's entry turns published (with its digest when it held none),
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// refused with the holder's reason, or removed with its reason and the event's id; a by-digest publish (no version)
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// marks nothing. It answers the names waiting on their floor that the event wakes: a `published` says the seat
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// answers (design 51 *The floor*).
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func (n *Numberer) Heard(ctx context.Context, seat, event, id string, o Outcome) ([]string, error) {
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var wake []string
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if event == HeardPublished && n.Waits != nil {
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wake = n.Waits.Wake(WakePublished, seat, "", "")
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}
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if o.Version == "" {
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return wake, nil
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}
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var change func(*Entry)
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switch event {
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case HeardPublished:
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change = func(e *Entry) {
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e.State, e.Reason = Published, ""
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if e.Digest == "" {
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e.Digest = o.Digest
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}
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}
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case HeardRefused:
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change = func(e *Entry) {
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if e.State != Published {
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e.State, e.Reason = Refused, o.Reason
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}
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}
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case HeardRemoved:
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change = func(e *Entry) { e.State, e.Reason, e.RemovedBy = Removed, o.Reason, id }
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default:
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return wake, fmt.Errorf("%s says %q, which the builder does not hear", seat, event)
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}
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if _, err := n.Versions.Mark(ctx, o.Name, o.Version, change); err != nil {
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return wake, fmt.Errorf("%s's %s of %s@%s: %w", seat, event, o.Name, o.Version, err)
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}
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return wake, nil
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}
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