Add forward compatibility with Go 1.19

ffconfig/main.go

@@ -18,7 +18,6 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 
 	"github.com/hyperledger/firefly/ffconfig/migrate"
@@ -38,7 +37,7 @@ var migrateCommand = &cobra.Command{
 	Use:   "migrate",
 	Short: "Migrate a config file to the current version",
 	RunE: func(cmd *cobra.Command, args []string) error {
-		cfg, err := ioutil.ReadFile(cfgFile)
+		cfg, err := os.ReadFile(cfgFile)
 		if err != nil {
 			return err
 		}
@@ -50,7 +49,7 @@ var migrateCommand = &cobra.Command{
 			fmt.Print(string(out))
 			return nil
 		}
-		return ioutil.WriteFile(outFile, out, 0600)
+		return os.WriteFile(outFile, out, 0600)
 	},
 }
 

internal/data/data_manager.go

@@ -186,8 +186,8 @@ func (dm *dataManager) getValidatorForDatatype(ctx context.Context, validator co
 }
 
 // GetMessageWithData performs a cached lookup of a message with all of the associated data.
-// - Use this in performance sensitive code, but note mutable fields like the status of the
-//   message CANNOT be relied upon (due to the caching).
+//   - Use this in performance sensitive code, but note mutable fields like the status of the
+//     message CANNOT be relied upon (due to the caching).
 func (dm *dataManager) GetMessageWithDataCached(ctx context.Context, msgID *fftypes.UUID, options ...CacheReadOption) (msg *core.Message, data core.DataArray, foundAllData bool, err error) {
 	if mce := dm.queryMessageCache(ctx, msgID, options...); mce != nil {
 		return mce.msg, mce.data, true, nil

internal/events/aggregator_batch_state.go

@@ -81,17 +81,17 @@ type dispatchedMessage struct {
 // batchState is the object that tracks the in-memory state that builds up while processing a batch of pins,
 // that needs to be reconciled at the point the batch closes.
 // There are three phases:
-// 1. Dispatch: Determines if messages are blocked, or can be dispatched. Calls the appropriate dispatch
-//              actions for that message type. Reads initial `pin` state for contexts from the DB, and then
-//              updates this in-memory throughout the batch, ready for flushing in the Finalize phase.
-//              Runs in a database operation group/tranaction.
-// 2. Pre-finalize: Runs any PreFinalize callbacks registered by the handlers in (1).
-//                  Intended to be used for cross-microservice REST/GRPC etc. calls that have side-effects.
-//                  Runs outside any database operation group/tranaction.
-// 3. Finalize: Flushes the `pin` state calculated in phase (1), and any Finalize actions registered by handlers
-//              during phase (1) or (2).
-//              Runs in a database operation group/tranaction, which will be the same as phase (1) if there
-//              are no pre-finalize handlers registered.
+//  1. Dispatch: Determines if messages are blocked, or can be dispatched. Calls the appropriate dispatch
+//     actions for that message type. Reads initial `pin` state for contexts from the DB, and then
+//     updates this in-memory throughout the batch, ready for flushing in the Finalize phase.
+//     Runs in a database operation group/tranaction.
+//  2. Pre-finalize: Runs any PreFinalize callbacks registered by the handlers in (1).
+//     Intended to be used for cross-microservice REST/GRPC etc. calls that have side-effects.
+//     Runs outside any database operation group/tranaction.
+//  3. Finalize: Flushes the `pin` state calculated in phase (1), and any Finalize actions registered by handlers
+//     during phase (1) or (2).
+//     Runs in a database operation group/tranaction, which will be the same as phase (1) if there
+//     are no pre-finalize handlers registered.
 type batchState struct {
 	core.BatchState
 

internal/events/tokens_approved.go

@@ -31,11 +31,11 @@ import (
 // This will ensure that the original LocalID provided to the user can later be used in a lookup, and also causes requests that
 // use "confirm=true" to resolve as expected.
 // Must follow these rules to reuse the LocalID:
-// - The transaction ID on the approval must match a transaction+operation initiated by this node.
-// - The connector and pool for this event must match the connector and pool targeted by the initial operation. Connectors are
-//   allowed to trigger side-effects in other pools, but only the event from the targeted pool should use the original LocalID.
-// - The LocalID must not have been used yet. Connectors are allowed to emit multiple events in response to a single operation,
-//   but only the first of them can use the original LocalID.
+//   - The transaction ID on the approval must match a transaction+operation initiated by this node.
+//   - The connector and pool for this event must match the connector and pool targeted by the initial operation. Connectors are
+//     allowed to trigger side-effects in other pools, but only the event from the targeted pool should use the original LocalID.
+//   - The LocalID must not have been used yet. Connectors are allowed to emit multiple events in response to a single operation,
+//     but only the first of them can use the original LocalID.
 func (em *eventManager) loadApprovalID(ctx context.Context, tx *fftypes.UUID, approval *core.TokenApproval) (*fftypes.UUID, error) {
 	// Find a matching operation within the transaction
 	fb := database.OperationQueryFactory.NewFilter(ctx)

internal/events/tokens_transferred.go

@@ -31,11 +31,11 @@ import (
 // This will ensure that the original LocalID provided to the user can later be used in a lookup, and also causes requests that
 // use "confirm=true" to resolve as expected.
 // Must follow these rules to reuse the LocalID:
-// - The transaction ID on the transfer must match a transaction+operation initiated by this node.
-// - The connector and pool for this event must match the connector and pool targeted by the initial operation. Connectors are
-//   allowed to trigger side-effects in other pools, but only the event from the targeted pool should use the original LocalID.
-// - The LocalID must not have been used yet. Connectors are allowed to emit multiple events in response to a single operation,
-//   but only the first of them can use the original LocalID.
+//   - The transaction ID on the transfer must match a transaction+operation initiated by this node.
+//   - The connector and pool for this event must match the connector and pool targeted by the initial operation. Connectors are
+//     allowed to trigger side-effects in other pools, but only the event from the targeted pool should use the original LocalID.
+//   - The LocalID must not have been used yet. Connectors are allowed to emit multiple events in response to a single operation,
+//     but only the first of them can use the original LocalID.
 func (em *eventManager) loadTransferID(ctx context.Context, tx *fftypes.UUID, transfer *core.TokenTransfer) (*fftypes.UUID, error) {
 	// Find a matching operation within the transaction
 	fb := database.OperationQueryFactory.NewFilter(ctx)

internal/events/websockets/websocket_connection.go

@@ -19,7 +19,7 @@ package websockets
 import (
 	"context"
 	"encoding/json"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"sync"
 
@@ -138,7 +138,7 @@ func (wc *websocketConnection) receiveLoop() {
 		var msgHeader core.WSActionBase
 		_, reader, err := wc.wsConn.NextReader()
 		if err == nil {
-			msgData, err = ioutil.ReadAll(reader)
+			msgData, err = io.ReadAll(reader)
 			if err == nil {
 				err = json.Unmarshal(msgData, &msgHeader)
 				if err != nil {

internal/shareddownload/operations.go

@@ -19,7 +19,6 @@ package shareddownload
 import (
 	"context"
 	"io"
-	"io/ioutil"
 
 	"github.com/docker/go-units"
 	"github.com/hyperledger/firefly-common/pkg/fftypes"
@@ -122,7 +121,7 @@ func (dm *downloadManager) downloadBatch(ctx context.Context, data downloadBatch
 	// Read from the stream up to the limit
 	maxReadLimit := dm.broadcastBatchPayloadLimit + 1024
 	limitedReader := io.LimitReader(reader, maxReadLimit)
-	batchBytes, err := ioutil.ReadAll(limitedReader)
+	batchBytes, err := io.ReadAll(limitedReader)
 	if err != nil {
 		return nil, false, i18n.WrapError(ctx, err, coremsgs.MsgDownloadSharedFailed, data.PayloadRef)
 	}

internal/spievents/websockets.go

@@ -19,7 +19,7 @@ package spievents
 import (
 	"context"
 	"encoding/json"
-	"io/ioutil"
+	"io"
 	"sync"
 	"time"
 
@@ -153,7 +153,7 @@ func (wc *webSocket) receiveLoop() {
 		var cmd core.WSChangeEventCommand
 		_, reader, err := wc.wsConn.NextReader()
 		if err == nil {
-			msgData, err = ioutil.ReadAll(reader)
+			msgData, err = io.ReadAll(reader)
 			if err == nil {
 				err = json.Unmarshal(msgData, &cmd)
 			}

internal/tokens/fftokens/fftokens.go

@@ -560,9 +560,10 @@ func (ft *FFTokens) eventLoop() {
 }
 
 // Parse a JSON error of the form:
-//   {"error": "Bad Request", "message": "Field 'x' is required"}
+// {"error": "Bad Request", "message": "Field 'x' is required"}
 // into a message of the form:
-//   "Bad Request: Field 'x' is required"
+//
+//	"Bad Request: Field 'x' is required"
 func wrapError(ctx context.Context, errRes *tokenError, res *resty.Response, err error) error {
 	if errRes != nil && errRes.Message != "" {
 		if errRes.Error != "" {

pkg/core/pin.go

@@ -37,7 +37,6 @@ import "github.com/hyperledger/firefly-common/pkg/fftypes"
 // moving separately to the batch. If we get the private message, then the batch,
 // before receiving the blob data - we have to upgrade a batch-park, to a pin-park.
 // This is because the sequence must be in the order the pins arrive.
-//
 type Pin struct {
 	Sequence   int64            `ffstruct:"Pin" json:"sequence"`
 	Namespace  string           `ffstruct:"Pin" json:"namespace"`

pkg/database/plugin.go

@@ -522,7 +522,6 @@ type iChartCollection interface {
 // interface.
 // For SQL databases the process of adding a new database is simplified via the common SQL layer.
 // For NoSQL databases, the code should be straight forward to map the collections, indexes, and operations.
-//
 type PersistenceInterface interface {
 	core.Named
 
@@ -655,7 +654,6 @@ type PostCompletionHook func()
 // Events are emitted locally to the individual FireFly core process. However, a WebSocket interface is
 // available for remote listening to these events. That allows the UI to listen to the events, as well as
 // providing a building block for a cluster of FireFly servers to directly propgate events to each other.
-//
 type Callbacks interface {
 	// OrderedUUIDCollectionNSEvent emits the sequence on insert, but it will be -1 on update
 	OrderedUUIDCollectionNSEvent(resType OrderedUUIDCollectionNS, eventType core.ChangeEventType, namespace string, id *fftypes.UUID, sequence int64)

pkg/dataexchange/plugin.go

@@ -47,13 +47,12 @@ import (
 // - Can be stored and retrieved separately from their transfer
 // - Transfers are initiated via reference (not in-line data)
 // - Are hashed by the DX plugin using the same hashing algorithm as FireFly (SHA256)
-// - DX plugins can mainain their own internal IDs for Blobs within the following requirements:
+// - DX plugins can maintain their own internal IDs for Blobs within the following requirements:
 //   - Given a namespace and ID, map to a "payloadRef" string (<1024chars) that allows that same payload to be retrieved using only that payloadRef
-//     - Example would be a logical filesystem path like "local/namespace/ID"
-//   - When data is recevied from other members in the network, be able to return the hash when provided with the remote peerID string, namespace and ID
-//     - Could be done by having a data store to resolve the transfers, or simply a deterministic path to metadata like "receive/peerID/namespace/ID"
+//   - Example would be a logical filesystem path like "local/namespace/ID"
+//   - When data is received from other members in the network, be able to return the hash when provided with the remote peerID string, namespace and ID
+//   - Could be done by having a data store to resolve the transfers, or simply a deterministic path to metadata like "receive/peerID/namespace/ID"
 //   - Events triggered for arrival of blobs must contain the payloadRef, and the hash
-//
 type Plugin interface {
 	core.Named
 

test/e2e/client/restclient.go

@@ -23,7 +23,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"math/big"
 	"net/http"
 	"net/url"
@@ -222,7 +221,7 @@ func (client *FireFlyClient) GetBlob(t *testing.T, data *core.Data, expectedStat
 		Get(path)
 	require.NoError(t, err)
 	require.Equal(t, expectedStatus, resp.StatusCode(), "GET %s [%d]: %s", path, resp.StatusCode(), resp.String())
-	blob, err := ioutil.ReadAll(resp.RawBody())
+	blob, err := io.ReadAll(resp.RawBody())
 	require.NoError(t, err)
 	return blob
 }

test/e2e/common.go

@@ -19,7 +19,6 @@ package e2e
 import (
 	"crypto/rand"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"testing"
 
@@ -30,7 +29,7 @@ import (
 )
 
 func ReadConfig(t *testing.T, configFile string) map[string]interface{} {
-	yfile, err := ioutil.ReadFile(configFile)
+	yfile, err := os.ReadFile(configFile)
 	assert.NoError(t, err)
 	data := make(map[string]interface{})
 	err = yaml.Unmarshal(yfile, &data)

test/e2e/stack.go

@@ -18,7 +18,7 @@ package e2e
 
 import (
 	"encoding/json"
-	"io/ioutil"
+	"os"
 )
 
 type Stack struct {
@@ -47,7 +47,7 @@ type Member struct {
 }
 
 func GetMemberPort(filename string, n int) (int, error) {
-	jsonBytes, err := ioutil.ReadFile(filename)
+	jsonBytes, err := os.ReadFile(filename)
 	if err != nil {
 		return 0, err
 	}
@@ -62,7 +62,7 @@ func GetMemberPort(filename string, n int) (int, error) {
 }
 
 func GetMemberHostname(filename string, n int) (string, error) {
-	jsonBytes, err := ioutil.ReadFile(filename)
+	jsonBytes, err := os.ReadFile(filename)
 	if err != nil {
 		return "", err
 	}
@@ -77,7 +77,7 @@ func GetMemberHostname(filename string, n int) (string, error) {
 }
 
 func ReadStackFile(filename string) (*Stack, error) {
-	jsonBytes, err := ioutil.ReadFile(filename)
+	jsonBytes, err := os.ReadFile(filename)
 	if err != nil {
 		return nil, err
 	}
@@ -100,7 +100,7 @@ func ReadStackFile(filename string) (*Stack, error) {
 }
 
 func ReadStackStateFile(filename string) (*StackState, error) {
-	jsonBytes, err := ioutil.ReadFile(filename)
+	jsonBytes, err := os.ReadFile(filename)
 	if err != nil {
 		return nil, err
 	}