Add cli to submit gov proposal to upgrade multiple channels

modules/core/04-channel/client/cli/cli.go

@@ -50,7 +50,8 @@ func NewTxCmd() *cobra.Command {
 	}
 
 	txCmd.AddCommand(
-		NewPruneAcknowledgementsTxCmd(),
+		newUpgradeChannelsTxCmd(),
+		newPruneAcknowledgementsTxCmd(),
 	)
 
 	return txCmd

modules/core/04-channel/client/cli/tx.go

@@ -2,20 +2,33 @@ package cli
 
 import (
 	"fmt"
+	"regexp"
+	"slices"
 	"strconv"
+	"strings"
 
 	"github.com/spf13/cobra"
 
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/client/flags"
 	"github.com/cosmos/cosmos-sdk/client/tx"
+	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/version"
+	govcli "github.com/cosmos/cosmos-sdk/x/gov/client/cli"
 
 	"github.com/cosmos/ibc-go/v8/modules/core/04-channel/types"
+	ibcexported "github.com/cosmos/ibc-go/v8/modules/core/exported"
 )
 
-// NewPruneAcknowledgementsTxCmd returns the command to create a new MsgPruneAcknowledgements transaction
-func NewPruneAcknowledgementsTxCmd() *cobra.Command {
+const (
+	flagJSON        = "json"
+	flagPortPattern = "port-pattern"
+	flagExpedited   = "expedited"
+	flagChannelIDs  = "channel-ids"
+)
+
+// newPruneAcknowledgementsTxCmd returns the command to create a new MsgPruneAcknowledgements transaction
+func newPruneAcknowledgementsTxCmd() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "prune-acknowledgements [port] [channel] [limit]",
 		Short: "Prune expired packet acknowledgements stored in IBC state",
@@ -45,3 +58,118 @@ func NewPruneAcknowledgementsTxCmd() *cobra.Command {
 	flags.AddTxFlagsToCmd(cmd)
 	return cmd
 }
+
+func newUpgradeChannelsTxCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "upgrade-channels",
+		Short: "Upgrade IBC channels",
+		Long: `Submit a governance proposal to upgrade all open channels whose port matches a specified pattern 
+(the default is transfer), optionally, an exact list of comma separated channel IDs may be specified.`,
+		Args:    cobra.ExactArgs(1),
+		Example: fmt.Sprintf(`%s tx %s %s upgrade-channels "{\"fee_version\":\"ics29-1\",\"app_version\":\"ics20-1\"}" --deposit 10stake`, version.AppName, ibcexported.ModuleName, types.SubModuleName),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			versionStr := args[0]
+
+			clientCtx, err := client.GetClientQueryContext(cmd)
+			if err != nil {
+				return err
+			}
+
+			portPattern, err := cmd.Flags().GetString(flagPortPattern)
+			if err != nil {
+				return err
+			}
+
+			commaSeparatedChannelIDs, err := cmd.Flags().GetString(flagChannelIDs)
+			if err != nil {
+				return err
+			}
+
+			displayJSON, err := cmd.Flags().GetBool(flagJSON)
+			if err != nil {
+				return err
+			}
+
+			queryClient := types.NewQueryClient(clientCtx)
+
+			resp, err := queryClient.Channels(cmd.Context(), &types.QueryChannelsRequest{})
+			if err != nil {
+				return err
+			}
+
+			channelIDs := getChannelIDs(commaSeparatedChannelIDs)
+
+			var msgs []sdk.Msg
+			pattern := regexp.MustCompile(portPattern)
+
+			for _, ch := range resp.Channels {
+
+				if !channelShouldBeUpgraded(*ch, pattern, channelIDs) {
+					continue
+				}
+
+				// construct a MsgChannelUpgradeInit which will upgrade the specified channel to a specific version.
+				msgUpgradeInit := types.NewMsgChannelUpgradeInit(ch.PortId, ch.ChannelId, types.NewUpgradeFields(ch.Ordering, ch.ConnectionHops, versionStr), clientCtx.GetFromAddress().String())
+				msgs = append(msgs, msgUpgradeInit)
+			}
+
+			if len(msgs) == 0 {
+				return fmt.Errorf("no channels would be upgraded with pattern %s", portPattern)
+			}
+
+			msgSubmitProposal, err := govcli.ReadGovPropFlags(clientCtx, cmd.Flags())
+			if err != nil {
+				return err
+			}
+
+			if err := msgSubmitProposal.SetMsgs(msgs); err != nil {
+				return err
+			}
+
+			dryRun, _ := cmd.Flags().GetBool(flags.FlagDryRun)
+			if displayJSON || dryRun {
+				out, err := clientCtx.Codec.MarshalJSON(msgSubmitProposal)
+				if err != nil {
+					return err
+				}
+				return clientCtx.PrintBytes(out)
+			}
+
+			return tx.GenerateOrBroadcastTxCLI(clientCtx, cmd.Flags(), msgSubmitProposal)
+		},
+	}
+
+	flags.AddTxFlagsToCmd(cmd)
+	govcli.AddGovPropFlagsToCmd(cmd)
+	cmd.Flags().Bool(flagJSON, false, "specify true to output valid proposal.json contents, instead of submitting a governance proposal.")
+	cmd.Flags().String(flagPortPattern, "transfer", "The pattern to use to match port ids.")
+	cmd.Flags().String(flagChannelIDs, "", "a comma separated list of channel IDs to upgrade.")
+	cmd.Flags().Bool(flagExpedited, false, "set the expedited value for the governance proposal.")
+
+	return cmd
+}
+
+// getChannelIDs returns a slice of channel IDs based on a comma separated string of channel IDs.
+func getChannelIDs(commaSeparatedList string) []string {
+	if strings.TrimSpace(commaSeparatedList) == "" {
+		return nil
+	}
+	return strings.Split(commaSeparatedList, ",")
+}
+
+// channelShouldBeUpgraded returns a boolean indicating whether or not the given channel should be upgraded based
+// on either the provided regex pattern or list of desired channel IDs.
+func channelShouldBeUpgraded(channel types.IdentifiedChannel, pattern *regexp.Regexp, channelIDs []string) bool {
+	// skip any channel that is not open
+	if channel.State != types.OPEN {
+		return false
+	}
+
+	// if specified, the channel ID must exactly match.
+	if len(channelIDs) > 0 {
+		return pattern.MatchString(channel.PortId) && slices.Contains(channelIDs, channel.ChannelId)
+	}
+
+	// otherwise we only need the port pattern to match.
+	return pattern.MatchString(channel.PortId)
+}