Format Go with gofmt, then golines -m 77 (closes #215)

script/fmt now runs golines -m 77 after gofmt, repeating golines until
it changes nothing, since one pass can leave a line the next splits.
script/fmt-check fails when either would change a file.
script/bootstrap installs golines v0.13.0 with go install, pinned to
its commit, and checks the installed version with go version -m.

The tree is reformatted. The longer lines this makes are fixed by
hand: nolint directives moved onto their own line above the statement,
one string split, and 20 functions over funlen's 80 lines shortened or
split, RunWAF and limitPercentages among them.

Model: opus-5-5

internal/alerts/alerts.go

@@ -291,7 +291,15 @@ func cooldownKeyOf(alert *Alert) cooldownKey {
 	asn, _ := alert.Detail["asn"].(string)
 	name, _ := alert.Detail["name"].(string)
 
-	return cooldownKey{alert.Event, alert.Netblock, file, source, scope, asn, name}
+	return cooldownKey{
+		alert.Event,
+		alert.Netblock,
+		file,
+		source,
+		scope,
+		asn,
+		name,
+	}
 }
 
 // New returns a Queue with no alert yet.
@@ -333,7 +341,8 @@ func New(params Params) *Queue {
 // queue of each destination, from which Run sends it, and with queueSize
 // alerts waiting for a destination, the oldest is dropped.
 func (q *Queue) Raise(alert Alert) {
-	if len(q.destinations) == 0 || !slices.Contains(q.params.Events, alert.Event) {
+	if len(q.destinations) == 0 ||
+		!slices.Contains(q.params.Events, alert.Event) {
 		return
 	}
 
@@ -380,7 +389,8 @@ func (q *Queue) WouldSend(event string, netblock netip.Prefix) bool {
 	now := q.params.Now()
 
 	last, found := q.cooldowns[cooldownKey{event: event, netblock: netblock}]
-	if q.params.Cooldown > 0 && found && now.Sub(last.Sent) < q.params.Cooldown {
+	if q.params.Cooldown > 0 && found &&
+		now.Sub(last.Sent) < q.params.Cooldown {
 		return false
 	}
 
@@ -474,10 +484,15 @@ func (q *Queue) Snapshot() State {
 	}
 
 	slices.SortFunc(state.Cooldowns, func(a, b Cooldown) int {
-		return cmp.Or(a.Netblock.Compare(b.Netblock), cmp.Compare(a.Event, b.Event),
-			cmp.Compare(a.File, b.File), cmp.Compare(a.Source, b.Source),
-			cmp.Compare(a.Scope, b.Scope), cmp.Compare(a.ASN, b.ASN),
-			cmp.Compare(a.Name, b.Name))
+		return cmp.Or(
+			a.Netblock.Compare(b.Netblock),
+			cmp.Compare(a.Event, b.Event),
+			cmp.Compare(a.File, b.File),
+			cmp.Compare(a.Source, b.Source),
+			cmp.Compare(a.Scope, b.Scope),
+			cmp.Compare(a.ASN, b.ASN),
+			cmp.Compare(a.Name, b.Name),
+		)
 	})
 
 	for _, d := range q.destinations {
@@ -609,9 +624,12 @@ func (q *Queue) endHour(now time.Time) {
 	var reasons []string
 
 	if heldBack > 0 {
-		reasons = append(reasons, fmt.Sprintf("%d alerts held back in the hour from %s, "+
-			"past the %d an hour SWW_ALERT_MAX_PER_HOUR allows", heldBack,
-			q.hour.Start.Format(time.RFC3339), q.params.MaxPerHour))
+		reasons = append(
+			reasons,
+			fmt.Sprintf("%d alerts held back in the hour from %s, "+
+				"past the %d an hour SWW_ALERT_MAX_PER_HOUR allows", heldBack,
+				q.hour.Start.Format(time.RFC3339), q.params.MaxPerHour),
+		)
 	}
 
 	if repeats > 0 {
@@ -690,12 +708,19 @@ func (d *destination) run(ctx context.Context) {
 			case ctx.Err() == nil: // not cut off as sww stops
 				d.sendFailures.Add(1)
 
-				retryDelay = min(max(retryDelayFactor*retryDelay, firstRetryDelay),
-					maxRetryDelay)
+				retryDelay = min(
+					max(retryDelayFactor*retryDelay, firstRetryDelay),
+					maxRetryDelay,
+				)
 				retryAt = time.Now().Add(retryDelay)
 
-				d.processLog.Warn("sending an alert to "+d.setting+" failed",
-					"error", err.Error(), "sending_again_in", retryDelay.String())
+				d.processLog.Warn(
+					"sending an alert to "+d.setting+" failed",
+					"error",
+					err.Error(),
+					"sending_again_in",
+					retryDelay.String(),
+				)
 			}
 		}
 	}
@@ -783,8 +808,12 @@ func (d *destination) send(ctx context.Context, alert *Alert) error {
 	ctx, cancel := context.WithTimeout(ctx, sendTimeout)
 	defer cancel()
 
-	req, err := http.NewRequestWithContext(ctx, http.MethodPost, d.url.String(),
-		bytes.NewReader(body))
+	req, err := http.NewRequestWithContext(
+		ctx,
+		http.MethodPost,
+		d.url.String(),
+		bytes.NewReader(body),
+	)
 	if err != nil {
 		return fmt.Errorf("make the request: %w", err)
 	}
@@ -838,7 +867,14 @@ func (q *Queue) webhookMessage(alert *Alert) ([]byte, http.Header, error) {
 // in JSON: its title in bold, then its text, with &, < and > escaped, as
 // Slack asks, so that nothing in them is read as a link or a mention.
 func slackMessage(alert *Alert) ([]byte, http.Header, error) {
-	escape := strings.NewReplacer("&", "&amp;", "<", "&lt;", ">", "&gt;").Replace
+	escape := strings.NewReplacer(
+		"&",
+		"&amp;",
+		"<",
+		"&lt;",
+		">",
+		"&gt;",
+	).Replace
 
 	body, err := json.Marshal(map[string]string{
 		"text": "*" + escape(title(alert)) + "*\n" + escape(text(alert)),
@@ -936,7 +972,10 @@ func text(alert *Alert) string {
 	}
 
 	if alert.SuppressedRepeats > 0 {
-		lines = append(lines, fmt.Sprintf("suppressed repeats: %d", alert.SuppressedRepeats))
+		lines = append(
+			lines,
+			fmt.Sprintf("suppressed repeats: %d", alert.SuppressedRepeats),
+		)
 	}
 
 	return strings.Join(lines, "\n")