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Add debug() function to khepri cmd and lib

This commit is contained in:
Alexander Neumann 2014-11-16 15:30:08 +01:00
parent 4b0fae6099
commit bd105b69a8
3 changed files with 44 additions and 1 deletions

View file

@ -26,7 +26,7 @@ func initDebugLogger() *log.Logger {
// open logger // open logger
l := log.New(io.MultiWriter(os.Stderr, f), "DEBUG: ", log.LstdFlags) l := log.New(io.MultiWriter(os.Stderr, f), "DEBUG: ", log.LstdFlags)
fmt.Fprintf(os.Stderr, "logging activated, writing log file %s", filename) fmt.Fprintf(os.Stderr, "logging activated, writing log file %s\n", filename)
l.Printf("khepri %s", version) l.Printf("khepri %s", version)
return l return l

38
debug.go Normal file
View file

@ -0,0 +1,38 @@
// +build debug
package khepri
import (
"fmt"
"io"
"log"
"os"
"path/filepath"
"time"
)
var version = "compiled manually"
var debugLogger = initDebugLogger()
func initDebugLogger() *log.Logger {
// create new log file
filename := fmt.Sprintf("khepri-debug-%d-%s",
os.Getpid(), time.Now().Format("20060201-150405"))
f, err := os.OpenFile(filepath.Join(os.TempDir(), filename),
os.O_WRONLY|os.O_CREATE, 0600)
if err != nil {
fmt.Fprintf(os.Stderr, "unable to create debug log file: %v", err)
os.Exit(2)
}
// open logger
l := log.New(io.MultiWriter(os.Stderr, f), "DEBUG: ", log.LstdFlags)
fmt.Fprintf(os.Stderr, "logging activated, writing log file %s\n", filename)
l.Printf("khepri %s", version)
return l
}
func debug(fmt string, args ...interface{}) {
debugLogger.Printf(fmt, args...)
}

5
debug_release.go Normal file
View file

@ -0,0 +1,5 @@
// +build !debug
package khepri
func debug(fmt string, args ...interface{}) {}