Add context.Context to Logger interface

This allows custom logger adapters to add additional fields to log
messages. For example, a HTTP server may with to log the request ID.

fixes #428

log/log15adapter/adapter.go

@@ -3,6 +3,8 @@
 package log15adapter
 
 import (
+	"context"
+
 	"github.com/jackc/pgx/v4"
 )
 
@@ -24,7 +26,7 @@ func NewLogger(l Log15Logger) *Logger {
 	return &Logger{l: l}
 }
 
-func (l *Logger) Log(level pgx.LogLevel, msg string, data map[string]interface{}) {
+func (l *Logger) Log(ctx context.Context, level pgx.LogLevel, msg string, data map[string]interface{}) {
 	logArgs := make([]interface{}, 0, len(data))
 	for k, v := range data {
 		logArgs = append(logArgs, k, v)

log/logrusadapter/adapter.go

@@ -3,6 +3,8 @@
 package logrusadapter
 
 import (
+	"context"
+
 	"github.com/jackc/pgx/v4"
 	"github.com/sirupsen/logrus"
 )
@@ -15,7 +17,7 @@ func NewLogger(l logrus.FieldLogger) *Logger {
 	return &Logger{l: l}
 }
 
-func (l *Logger) Log(level pgx.LogLevel, msg string, data map[string]interface{}) {
+func (l *Logger) Log(ctx context.Context, level pgx.LogLevel, msg string, data map[string]interface{}) {
 	var logger logrus.FieldLogger
 	if data != nil {
 		logger = l.l.WithFields(data)

log/testingadapter/adapter.go

@@ -3,6 +3,7 @@
 package testingadapter
 
 import (
+	"context"
 	"fmt"
 
 	"github.com/jackc/pgx/v4"
@@ -22,7 +23,7 @@ func NewLogger(l TestingLogger) *Logger {
 	return &Logger{l: l}
 }
 
-func (l *Logger) Log(level pgx.LogLevel, msg string, data map[string]interface{}) {
+func (l *Logger) Log(ctx context.Context, level pgx.LogLevel, msg string, data map[string]interface{}) {
 	logArgs := make([]interface{}, 0, 2+len(data))
 	logArgs = append(logArgs, level, msg)
 	for k, v := range data {

log/zapadapter/adapter.go

@@ -2,6 +2,8 @@
 package zapadapter
 
 import (
+	"context"
+
 	"github.com/jackc/pgx/v4"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
@@ -15,7 +17,7 @@ func NewLogger(logger *zap.Logger) *Logger {
 	return &Logger{logger: logger.WithOptions(zap.AddCallerSkip(1))}
 }
 
-func (pl *Logger) Log(level pgx.LogLevel, msg string, data map[string]interface{}) {
+func (pl *Logger) Log(ctx context.Context, level pgx.LogLevel, msg string, data map[string]interface{}) {
 	fields := make([]zapcore.Field, len(data))
 	i := 0
 	for k, v := range data {

log/zerologadapter/adapter.go

@@ -2,6 +2,8 @@
 package zerologadapter
 
 import (
+	"context"
+
 	"github.com/jackc/pgx/v4"
 	"github.com/rs/zerolog"
 )
@@ -18,7 +20,7 @@ func NewLogger(logger zerolog.Logger) *Logger {
 	}
 }
 
-func (pl *Logger) Log(level pgx.LogLevel, msg string, data map[string]interface{}) {
+func (pl *Logger) Log(ctx context.Context, level pgx.LogLevel, msg string, data map[string]interface{}) {
 	var zlevel zerolog.Level
 	switch level {
 	case pgx.LogLevelNone: