日志按日期切分

xuxinhua · xuxinhua · commit 1c02933ae7ef · 2015-02-22T11:00:31.000+08:00
diff --git a/websites/code/studygolang/src/logger/logger.go b/websites/code/studygolang/src/logger/logger.go
@@ -11,6 +11,7 @@ import (
 	"io"
 	"log"
 	"os"
+	"time"
 )
 
 var (
@@ -29,7 +30,7 @@ type logger struct {
 }
 
 func Infof(format string, args ...interface{}) {
-	file, err := os.OpenFile(info_file, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0777)
+	file, err := openFile(info_file)
 	if err != nil {
 		return
 	}
@@ -38,7 +39,7 @@ func Infof(format string, args ...interface{}) {
 }
 
 func Infoln(args ...interface{}) {
-	file, err := os.OpenFile(info_file, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0777)
+	file, err := openFile(info_file)
 	if err != nil {
 		return
 	}
@@ -47,7 +48,7 @@ func Infoln(args ...interface{}) {
 }
 
 func Errorf(format string, args ...interface{}) {
-	file, err := os.OpenFile(error_file, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0777)
+	file, err := openFile(error_file)
 	if err != nil {
 		return
 	}
@@ -56,7 +57,7 @@ func Errorf(format string, args ...interface{}) {
 }
 
 func Errorln(args ...interface{}) {
-	file, err := os.OpenFile(error_file, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0777)
+	file, err := openFile(error_file)
 	if err != nil {
 		return
 	}
@@ -66,6 +67,12 @@ func Errorln(args ...interface{}) {
 
 func New(out io.Writer) *logger {
 	return &logger{
-		Logger: log.New(out, "", log.LstdFlags),
+		Logger: log.New(out, "", log.Ltime),
 	}
 }
+
+func openFile(filename string) (*os.File, error) {
+	filename += "-" + time.Now().Format("060102")
+
+	return os.OpenFile(filename, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0777)
+}

Original file line number	Diff line number	Diff line change
`@@ -11,6 +11,7 @@ import (`
`11`	`11`	`"io"`
`12`	`12`	`"log"`
`13`	`13`	`"os"`
	`14`	`+ "time"`
`14`	`15`	`)`
`15`	`16`
`16`	`17`	`var (`
`@@ -29,7 +30,7 @@ type logger struct {`
`29`	`30`	`}`
`30`	`31`
`31`	`32`	`func Infof(format string, args ...interface{}) {`
`32`		`- file, err := os.OpenFile(info_file, os.O_RDWR\|os.O_CREATE\|os.O_APPEND, 0777)`
	`33`	`+ file, err := openFile(info_file)`
`33`	`34`	`if err != nil {`
`34`	`35`	`return`
`35`	`36`	`}`
`@@ -38,7 +39,7 @@ func Infof(format string, args ...interface{}) {`
`38`	`39`	`}`
`39`	`40`
`40`	`41`	`func Infoln(args ...interface{}) {`
`41`		`- file, err := os.OpenFile(info_file, os.O_RDWR\|os.O_CREATE\|os.O_APPEND, 0777)`
	`42`	`+ file, err := openFile(info_file)`
`42`	`43`	`if err != nil {`
`43`	`44`	`return`
`44`	`45`	`}`
`@@ -47,7 +48,7 @@ func Infoln(args ...interface{}) {`
`47`	`48`	`}`
`48`	`49`
`49`	`50`	`func Errorf(format string, args ...interface{}) {`
`50`		`- file, err := os.OpenFile(error_file, os.O_RDWR\|os.O_CREATE\|os.O_APPEND, 0777)`
	`51`	`+ file, err := openFile(error_file)`
`51`	`52`	`if err != nil {`
`52`	`53`	`return`
`53`	`54`	`}`
`@@ -56,7 +57,7 @@ func Errorf(format string, args ...interface{}) {`
`56`	`57`	`}`
`57`	`58`
`58`	`59`	`func Errorln(args ...interface{}) {`
`59`		`- file, err := os.OpenFile(error_file, os.O_RDWR\|os.O_CREATE\|os.O_APPEND, 0777)`
	`60`	`+ file, err := openFile(error_file)`
`60`	`61`	`if err != nil {`
`61`	`62`	`return`
`62`	`63`	`}`
`@@ -66,6 +67,12 @@ func Errorln(args ...interface{}) {`
`66`	`67`
`67`	`68`	`func New(out io.Writer) *logger {`
`68`	`69`	`return &logger{`
`69`		`- Logger: log.New(out, "", log.LstdFlags),`
	`70`	`+ Logger: log.New(out, "", log.Ltime),`
`70`	`71`	`}`
`71`	`72`	`}`
	`73`	`+`
	`74`	`+func openFile(filename string) (*os.File, error) {`
	`75`	`+ filename += "-" + time.Now().Format("060102")`
	`76`	`+`
	`77`	`+ return os.OpenFile(filename, os.O_RDWR\|os.O_CREATE\|os.O_APPEND, 0777)`
	`78`	`+}`