fetch: exit with error if event is not fetched.

fetch.go

@@ -106,11 +106,17 @@ var fetch = &cli.Command{
 				continue
 			}
 
+			found := false
 			for ie := range sys.Pool.FetchMany(ctx, relays, filter, nostr.SubscriptionOptions{
 				Label: "nak-fetch",
 			}) {
+				found = true
 				stdout(ie.Event)
 			}
+
+			if !found {
+				ctx = lineProcessingError(ctx, "no events found for %s", code)
+			}
 		}
 
 		exitIfLineProcessingError(ctx)

go.mod

@@ -3,7 +3,7 @@ module github.com/fiatjaf/nak
 go 1.25
 
 require (
-	fiatjaf.com/nostr v0.0.0-20260326203601-3acfbbca0aea
+	fiatjaf.com/nostr v0.0.0-20260402062956-72a5be58d755
 	github.com/AlecAivazis/survey/v2 v2.3.7
 	github.com/bep/debounce v1.2.1
 	github.com/btcsuite/btcd/btcec/v2 v2.3.6

go.sum

@@ -1,7 +1,7 @@
 fiatjaf.com/lib v0.3.6 h1:GRZNSxHI2EWdjSKVuzaT+c0aifLDtS16SzkeJaHyJfY=
 fiatjaf.com/lib v0.3.6/go.mod h1:UlHaZvPHj25PtKLh9GjZkUHRmQ2xZ8Jkoa4VRaLeeQ8=
-fiatjaf.com/nostr v0.0.0-20260326203601-3acfbbca0aea h1:NvAnNbYjz7oSsmhMi1BTV02F/RIb//39W1hUTvpUbEU=
-fiatjaf.com/nostr v0.0.0-20260326203601-3acfbbca0aea/go.mod h1:ue7yw0zHfZj23Ml2kVSdBx0ENEaZiuvGxs/8VEN93FU=
+fiatjaf.com/nostr v0.0.0-20260402062956-72a5be58d755 h1:Tt9XwQMaGaZw2cwujK8IAD/g6FkJC9WWRJuz+7qM1zM=
+fiatjaf.com/nostr v0.0.0-20260402062956-72a5be58d755/go.mod h1:iRKV8eYKzePA30MdbaYBpAv8pYQ6to8rDr3W+R2hJzM=
 github.com/AlecAivazis/survey/v2 v2.3.7 h1:6I/u8FvytdGsgonrYsVn2t8t4QiRnh6QSTqkkhIiSjQ=
 github.com/AlecAivazis/survey/v2 v2.3.7/go.mod h1:xUTIdE4KCOIjsBAE1JYsUPoCqYdZ1reCfTwbto0Fduo=
 github.com/FastFilter/xorfilter v0.2.1 h1:lbdeLG9BdpquK64ZsleBS8B4xO/QW1IM0gMzF7KaBKc=