Finish compatible interface to inconshreveable/log15

conn.go

@@ -188,7 +188,7 @@ func Connect(config ConnConfig) (c *Conn, err error) {
 			}
 		case readyForQuery:
 			c.rxReadyForQuery(r)
-			c.logger = c.logger.New("pid", c.Pid)
+			c.logger = &connLogger{logger: c.logger, pid: c.Pid}
 			c.logger.Info("Connection established")
 			return c, nil
 		default:

logger.go

@@ -5,9 +5,6 @@ package pgx
 // This logging interface was extracted from there. However, it should be simple
 // to adapt any logger to this interface.
 type Logger interface {
-	// New returns a new Logger that has this logger's context plus the given context
-	New(ctx ...interface{}) Logger
-
 	// Log a message at the given level with context key/value pairs
 	Debug(msg string, ctx ...interface{})
 	Info(msg string, ctx ...interface{})
@@ -18,9 +15,38 @@ type Logger interface {
 
 type DiscardLogger struct{}
 
-func (l *DiscardLogger) New(ctx ...interface{}) Logger        { return l }
 func (l *DiscardLogger) Debug(msg string, ctx ...interface{}) {}
 func (l *DiscardLogger) Info(msg string, ctx ...interface{})  {}
 func (l *DiscardLogger) Warn(msg string, ctx ...interface{})  {}
 func (l *DiscardLogger) Error(msg string, ctx ...interface{}) {}
 func (l *DiscardLogger) Crit(msg string, ctx ...interface{})  {}
+
+type connLogger struct {
+	logger Logger
+	pid    int32
+}
+
+func (l *connLogger) Debug(msg string, ctx ...interface{}) {
+	ctx = append(ctx, "pid", l.pid)
+	l.logger.Debug(msg, ctx...)
+}
+
+func (l *connLogger) Info(msg string, ctx ...interface{}) {
+	ctx = append(ctx, "pid", l.pid)
+	l.logger.Info(msg, ctx...)
+}
+
+func (l *connLogger) Warn(msg string, ctx ...interface{}) {
+	ctx = append(ctx, "pid", l.pid)
+	l.logger.Warn(msg, ctx...)
+}
+
+func (l *connLogger) Error(msg string, ctx ...interface{}) {
+	ctx = append(ctx, "pid", l.pid)
+	l.logger.Error(msg, ctx...)
+}
+
+func (l *connLogger) Crit(msg string, ctx ...interface{}) {
+	ctx = append(ctx, "pid", l.pid)
+	l.logger.Crit(msg, ctx...)
+}

query.go

@@ -3,7 +3,6 @@ package pgx
 import (
 	"errors"
 	"fmt"
-	log "gopkg.in/inconshreveable/log15.v2"
 	"time"
 )
 
@@ -50,7 +49,7 @@ type Rows struct {
 	startTime time.Time
 	sql       string
 	args      []interface{}
-	logger    log.Logger
+	logger    Logger
 }
 
 func (rows *Rows) FieldDescriptions() []FieldDescription {