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Say what a walk touches, its bound and its outcome when it starts and ends (ADR 0308, issue 532)

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The router holds what an open walk touches and tells its result once; it can do so
only if plan-moved names the walk's start and end, the modules and machines it moves,
what a moved tool runner or node-engine carries there, and how long to hold.
This commit is contained in:
jochen
2026-10-12 12:54:20 +02:00
parent fafa3fd9ef
commit facc551ff2
9 changed files with 891 additions and 12 deletions
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cmd/mesh-controller/delivery.go
+13 -9
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@@ -940,7 +940,7 @@ func deliveryCommand(ctx context.Context, args []string) error {
if *group == "" && len(members) == 1 {
// One head, checked again as the forge's announcement would have it (a recheck): the controller's
// own path for a pull request, run because the delivery's owner asked.
if err := sayingOnTheBus(ctx, func() error { return (following{open}).PullUpdated(ctx, members[0].pull()) }); err != nil {
if err := sayingOnTheBus(ctx, inv, func() error { return (following{open}).PullUpdated(ctx, members[0].pull()) }); err != nil {
return err
}
return answer(map[string]any{"rechecked": members[0].ID})
@@ -958,7 +958,7 @@ func deliveryCommand(ctx context.Context, args []string) error {
return errors.New("delivery go <plan> [--by <who>] [--why <text>]")
}
var p inventory.Plan
if err := sayingOnTheBus(ctx, func() (err error) {
if err := sayingOnTheBus(ctx, inv, func() (err error) {
p, err = letGo(ctx, inv, positionals[0], *by, strings.TrimSpace(*why))
return err
}); err != nil {
@@ -973,7 +973,7 @@ func deliveryCommand(ctx context.Context, args []string) error {
}
var p inventory.Plan
var said stopAnswer
if err := sayingOnTheBus(ctx, func() (err error) {
if err := sayingOnTheBus(ctx, inv, func() (err error) {
p, said, err = stopWalkWithout(ctx, inv, positionals[0], *by, strings.TrimSpace(*why), splitList(*without),
time.Now().UTC())
return err
@@ -1215,15 +1215,19 @@ func shelfOf(entries []inventory.Entry) map[string]catalogue.Manifest {
// delivery it walks reads its steps from. Never in the way of the walk: said beside it, and a save that could
// not be said is logged — the delivery's owner, which also asks for the walks it follows, finds it by
// comparison. Records arriving out of order are told apart by the plan's revision.
func sayPlanMoved(ctx context.Context, bus link.Bus, p inventory.Plan) {
go publishPlanMoved(ctx, bus, p)
//
// On the save that starts the walk and the one that ends it, the walk also says what it touches, its bound and,
// at the end, its outcome (novox/hq ADR 0308 decision 1, walk_said.go), read from facts; nil facts say only what
// the walk recorded.
func sayPlanMoved(ctx context.Context, bus link.Bus, facts walkFacts, p inventory.Plan) {
go publishPlanMoved(ctx, bus, facts, p)
}
func publishPlanMoved(ctx context.Context, bus link.Bus, p inventory.Plan) {
func publishPlanMoved(ctx context.Context, bus link.Bus, facts walkFacts, p inventory.Plan) {
// Its phases so far (novox/hq ADR 0282 decision 6): the rest's reports come after the walk ends, and are
// read by whoever asks for the walk (`delivery walks`).
p.Phases = p.WalkPhases(time.Now(), nil)
body, err := json.Marshal(p)
body, err := json.Marshal(planMovedBody{Plan: p, walkSaid: sayWalk(ctx, facts, p)})
if err != nil {
return
}
@@ -1238,7 +1242,7 @@ func publishPlanMoved(ctx context.Context, bus link.Bus, p inventory.Plan) {
// controller's, or a connection of the command's own — a verb runs as a command of its own, and what it kept
// would otherwise be said by nobody until the delivery's owner read the walks back. Without a bus the command
// still runs; what it did is found by comparison.
func sayingOnTheBus(ctx context.Context, f func() error) error {
func sayingOnTheBus(ctx context.Context, facts walkFacts, f func() error) error {
if checkEvents != nil {
return f()
}
@@ -1250,7 +1254,7 @@ func sayingOnTheBus(ctx context.Context, f func() error) error {
}
bus := link.OverNATS{Conn: conn, JS: js}
checkEvents = bus
inventory.PlanSaved = func(p inventory.Plan) { publishPlanMoved(ctx, bus, p) }
inventory.PlanSaved = func(p inventory.Plan) { publishPlanMoved(ctx, bus, facts, p) }
defer func() { checkEvents, inventory.PlanSaved = nil, nil }()
ran = true
return f()