DB Migrations (#67)

vendor/src.techknowlogick.com/xormigrate/logger.go

@@ -0,0 +1,92 @@
+package xormigrate
+
+import (
+	"io"
+	"io/ioutil"
+	"log"
+	"os"
+)
+
+type LoggerInterface interface {
+	Debug(v ...interface{})
+	Debugf(format string, v ...interface{})
+	Info(v ...interface{})
+	Infof(format string, v ...interface{})
+	Warn(v ...interface{})
+	Warnf(format string, v ...interface{})
+	Error(v ...interface{})
+	Errorf(format string, v ...interface{})
+}
+
+var (
+	logger LoggerInterface = defaultLogger()
+)
+
+// SetLogger sets the Xormigrate logger
+func (x *Xormigrate) SetLogger(l LoggerInterface) {
+	logger = l
+}
+
+func defaultLogger() *XormigrateLogger {
+	return &XormigrateLogger{log.New(os.Stdout, "[xormigrate] ", 0)}
+}
+
+// DefaultLogger sets a Xormigrate logger with default settings
+// e.g. "[xormigrate] message"
+func (x *Xormigrate) DefaultLogger() {
+	x.SetLogger(defaultLogger())
+}
+
+// NilLogger sets a Xormigrate logger that discards all messages
+func (x *Xormigrate) NilLogger() {
+	x.SetLogger(&XormigrateLogger{log.New(ioutil.Discard, "", 0)})
+}
+
+// NewLogger sets a Xormigrate logger with a specified io.Writer
+func (x *Xormigrate) NewLogger(writer io.Writer) {
+	x.SetLogger(&XormigrateLogger{log.New(writer, "", 0)})
+}
+
+type XormigrateLogger struct {
+	*log.Logger
+}
+
+// Debug prints a Debug message
+func (l *XormigrateLogger) Debug(v ...interface{}) {
+	l.Logger.Print(v...)
+}
+
+// Debugf prints a formatted Debug message
+func (l *XormigrateLogger) Debugf(format string, v ...interface{}) {
+	l.Logger.Printf(format, v...)
+}
+
+// Info prints an Info message
+func (l *XormigrateLogger) Info(v ...interface{}) {
+	l.Logger.Print(v...)
+}
+
+// Infof prints a formatted Info message
+func (l *XormigrateLogger) Infof(format string, v ...interface{}) {
+	l.Logger.Printf(format, v...)
+}
+
+// Warn prints a Warning message
+func (l *XormigrateLogger) Warn(v ...interface{}) {
+	l.Logger.Print(v...)
+}
+
+// Warnf prints a formatted Warning message
+func (l *XormigrateLogger) Warnf(format string, v ...interface{}) {
+	l.Logger.Printf(format, v...)
+}
+
+// Error prints an Error message
+func (l *XormigrateLogger) Error(v ...interface{}) {
+	l.Logger.Print(v...)
+}
+
+// Errorf prints a formatted Error message
+func (l *XormigrateLogger) Errorf(format string, v ...interface{}) {
+	l.Logger.Printf(format, v...)
+}