remove/refactor functions from shared

flow/connectors/eventhub/hubmanager.go

@@ -14,8 +14,8 @@ import (
 	"github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/eventhub/armeventhub"
 	cmap "github.com/orcaman/concurrent-map/v2"
 
-	"github.com/PeerDB-io/peer-flow/connectors/utils"
 	"github.com/PeerDB-io/peer-flow/generated/protos"
+	"github.com/PeerDB-io/peer-flow/peerdbenv"
 	"github.com/PeerDB-io/peer-flow/shared"
 )
 
@@ -186,10 +186,10 @@ func (m *EventHubManager) EnsureEventHubExists(ctx context.Context, name ScopedE
 
 func (m *EventHubManager) getEventHubMgmtClient(subID string) (*armeventhub.EventHubsClient, error) {
 	if subID == "" {
-		envSubID, err := utils.GetAzureSubscriptionID()
-		if err != nil {
-			slog.Error("failed to get azure subscription id", slog.Any("error", err))
-			return nil, err
+		envSubID := peerdbenv.GetEnvString("AZURE_SUBSCRIPTION_ID", "")
+		if envSubID == "" {
+			slog.Error("couldn't find AZURE_SUBSCRIPTION_ID in environment")
+			return nil, errors.New("couldn't find AZURE_SUBSCRIPTION_ID in environment")
 		}
 		subID = envSubID
 	}

flow/connectors/postgres/qrep_partition_test.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"log/slog"
+	"math/rand/v2"
 	"testing"
 	"time"
 
@@ -84,11 +85,8 @@ func TestGetQRepPartitions(t *testing.T) {
 	}
 	defer conn.Close(context.Background())
 
-	// Generate a random schema name
-	rndUint, err := shared.RandomUInt64()
-	if err != nil {
-		t.Fatalf("Failed to generate random uint: %v", err)
-	}
+	//nolint:gosec // Generate a random schema name, number has no cryptographic significance
+	rndUint := rand.Uint64()
 	schemaName := fmt.Sprintf("test_%d", rndUint)
 
 	// Create the schema

flow/connectors/postgres/sink_q.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"log/slog"
+	"math/rand/v2"
 
 	"github.com/jackc/pgx/v5"
 
@@ -35,20 +36,15 @@ func (stream RecordStreamSink) ExecuteQueryWithTx(
 		}
 	}
 
-	randomUint, err := shared.RandomUInt64()
-	if err != nil {
-		qe.logger.Error("[pg_query_executor] failed to generate random uint", slog.Any("error", err))
-		err = fmt.Errorf("[pg_query_executor] failed to generate random uint: %w", err)
-		stream.Close(err)
-		return 0, err
-	}
+	//nolint:gosec // number has no cryptographic significance
+	randomUint := rand.Uint64()
 
 	cursorName := fmt.Sprintf("peerdb_cursor_%d", randomUint)
 	fetchSize := shared.FetchAndChannelSize
 	cursorQuery := fmt.Sprintf("DECLARE %s CURSOR FOR %s", cursorName, query)
 	qe.logger.Info(fmt.Sprintf("[pg_query_executor] executing cursor declaration for %v with args %v", cursorQuery, args))
-	_, err = tx.Exec(ctx, cursorQuery, args...)
-	if err != nil {
+
+	if _, err := tx.Exec(ctx, cursorQuery, args...); err != nil {
 		qe.logger.Info("[pg_query_executor] failed to declare cursor",
 			slog.String("cursorQuery", cursorQuery), slog.Any("error", err))
 		err = fmt.Errorf("[pg_query_executor] failed to declare cursor: %w", err)

flow/connectors/snowflake/qrep_avro_consolidate.go

@@ -4,13 +4,13 @@ import (
 	"context"
 	"fmt"
 	"log/slog"
+	"math/rand/v2"
 	"strings"
 	"time"
 
 	"github.com/PeerDB-io/peer-flow/connectors/utils"
 	"github.com/PeerDB-io/peer-flow/generated/protos"
 	"github.com/PeerDB-io/peer-flow/peerdbenv"
-	"github.com/PeerDB-io/peer-flow/shared"
 )
 
 type SnowflakeAvroConsolidateHandler struct {
@@ -214,10 +214,8 @@ func (s *SnowflakeAvroConsolidateHandler) generateUpsertMergeCommand(
 
 // handleUpsertMode handles the upsert mode
 func (s *SnowflakeAvroConsolidateHandler) handleUpsertMode(ctx context.Context) error {
-	runID, err := shared.RandomUInt64()
-	if err != nil {
-		return fmt.Errorf("failed to generate run ID: %w", err)
-	}
+	//nolint:gosec // number has no cryptographic significance
+	runID := rand.Uint64()
 
 	tempTableName := fmt.Sprintf("%s_temp_%d", s.dstTableName, runID)
 
@@ -230,8 +228,8 @@ func (s *SnowflakeAvroConsolidateHandler) handleUpsertMode(ctx context.Context)
 	s.connector.logger.Info("created temp table " + tempTableName)
 
 	copyCmd := s.getCopyTransformation(tempTableName)
-	_, err = s.connector.database.ExecContext(ctx, copyCmd)
-	if err != nil {
+
+	if _, err := s.connector.database.ExecContext(ctx, copyCmd); err != nil {
 		return fmt.Errorf("failed to run COPY INTO command: %w", err)
 	}
 	s.connector.logger.Info("copied file from stage " + s.stage + " to temp table " + tempTableName)

flow/e2e/bigquery/bigquery_helper.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"math/big"
+	"math/rand/v2"
 	"os"
 	"strings"
 	"testing"
@@ -21,7 +22,6 @@ import (
 	"github.com/PeerDB-io/peer-flow/generated/protos"
 	"github.com/PeerDB-io/peer-flow/model"
 	"github.com/PeerDB-io/peer-flow/model/qvalue"
-	"github.com/PeerDB-io/peer-flow/shared"
 )
 
 type BigQueryTestHelper struct {
@@ -37,10 +37,8 @@ type BigQueryTestHelper struct {
 func NewBigQueryTestHelper(t *testing.T) (*BigQueryTestHelper, error) {
 	t.Helper()
 	// random 64 bit int to namespace stateful schemas.
-	runID, err := shared.RandomUInt64()
-	if err != nil {
-		return nil, fmt.Errorf("failed to generate random uint64: %w", err)
-	}
+	//nolint:gosec // number has no cryptographic significance
+	runID := rand.Uint64()
 
 	jsonPath := os.Getenv("TEST_BQ_CREDS")
 	if jsonPath == "" {

flow/e2e/snowflake/snowflake_helper.go

@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"math/rand/v2"
 	"os"
 	"testing"
 
@@ -13,7 +14,6 @@ import (
 	"github.com/PeerDB-io/peer-flow/generated/protos"
 	"github.com/PeerDB-io/peer-flow/model"
 	"github.com/PeerDB-io/peer-flow/model/qvalue"
-	"github.com/PeerDB-io/peer-flow/shared"
 )
 
 type SnowflakeTestHelper struct {
@@ -47,11 +47,8 @@ func NewSnowflakeTestHelper(t *testing.T) (*SnowflakeTestHelper, error) {
 		return nil, fmt.Errorf("failed to unmarshal json: %w", err)
 	}
 
-	runID, err := shared.RandomUInt64()
-	if err != nil {
-		return nil, fmt.Errorf("failed to generate random uint64: %w", err)
-	}
-
+	//nolint:gosec // number has no cryptographic significance
+	runID := rand.Uint64()
 	testDatabaseName := fmt.Sprintf("e2e_test_%d", runID)
 
 	adminClient, err := connsnowflake.NewSnowflakeClient(context.Background(), config)

flow/e2e/sqlserver/sqlserver_helper.go

@@ -3,14 +3,14 @@ package e2e_sqlserver
 import (
 	"context"
 	"fmt"
+	"math/rand/v2"
 	"os"
 	"strconv"
 
 	peersql "github.com/PeerDB-io/peer-flow/connectors/sql"
 	connsqlserver "github.com/PeerDB-io/peer-flow/connectors/sqlserver"
 	"github.com/PeerDB-io/peer-flow/generated/protos"
 	"github.com/PeerDB-io/peer-flow/model/qvalue"
-	"github.com/PeerDB-io/peer-flow/shared"
 )
 
 type SQLServerHelper struct {
@@ -45,11 +45,8 @@ func NewSQLServerHelper() (*SQLServerHelper, error) {
 		return nil, fmt.Errorf("invalid connection configs: %v", connErr)
 	}
 
-	rndNum, err := shared.RandomUInt64()
-	if err != nil {
-		return nil, err
-	}
-
+	//nolint:gosec // number has no cryptographic significance
+	rndNum := rand.Uint64()
 	testSchema := fmt.Sprintf("e2e_test_%d", rndNum)
 	if err := connector.CreateSchema(context.Background(), testSchema); err != nil {
 		return nil, err

flow/shared/random.go

@@ -2,32 +2,8 @@ package shared
 
 import (
 	"crypto/rand"
-	"encoding/binary"
-	"errors"
 )
 
-// RandomInt64 returns a random 64 bit integer.
-func RandomInt64() (int64, error) {
-	b := make([]byte, 8)
-	_, err := rand.Read(b)
-	if err != nil {
-		return 0, errors.New("could not generate random int64: " + err.Error())
-	}
-	// Convert bytes to int64
-	return int64(binary.LittleEndian.Uint64(b)), nil
-}
-
-// RandomUInt64 returns a random 64 bit unsigned integer.
-func RandomUInt64() (uint64, error) {
-	b := make([]byte, 8)
-	_, err := rand.Read(b)
-	if err != nil {
-		return 0, errors.New("could not generate random uint64: " + err.Error())
-	}
-	// Convert bytes to uint64
-	return binary.LittleEndian.Uint64(b), nil
-}
-
 func RandomString(n int) string {
 	const alphanum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
 	bytes := make([]byte, n)