pulse more boilerplate refactoring

src/with/every.go

@@ -0,0 +1,34 @@
+package with
+
+import (
+	"context"
+	"time"
+)
+
+func GoEvery(ctx context.Context, d time.Duration, foo func()) {
+	every(ctx, d, foo, true)
+}
+
+func Every(ctx context.Context, d time.Duration, foo func()) {
+	every(ctx, d, foo, false)
+}
+
+func every(ctx context.Context, d time.Duration, foo func(), async bool) {
+	ticker := time.NewTicker(d)
+	defer ticker.Stop()
+	for ctx.Err() == nil {
+		everyTry(ctx, foo, async)
+		select {
+		case <-ctx.Done():
+		case <-ticker.C:
+		}
+	}
+}
+
+func everyTry(ctx context.Context, foo func(), async bool) {
+	if async {
+		go foo()
+	} else {
+		foo()
+	}
+}