forked from google/martian
/
log.go
73 lines (60 loc) · 1.72 KB
/
log.go
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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package martian
import (
"fmt"
"runtime"
"strings"
log "github.com/golang/glog"
)
// Infof logs an info message with caller information.
func Infof(format string, args ...interface{}) {
msg := format
if len(args) > 0 {
msg = fmt.Sprintf(format, args...)
}
log.InfoDepth(1, fmt.Sprintf("%s: %s", funcName(), msg))
}
// Debugf logs a debug message with caller information.
func Debugf(format string, args ...interface{}) {
msg := format
if len(args) > 0 {
msg = fmt.Sprintf(format, args...)
}
if log.V(2) {
log.InfoDepth(1, fmt.Sprintf("%s: %s", funcName(), msg))
}
}
// Errorf logs an error message with caller information.
func Errorf(format string, args ...interface{}) {
msg := format
if len(args) > 0 {
msg = fmt.Sprintf(format, args...)
}
log.ErrorDepth(1, fmt.Sprintf("%s: %s", funcName(), msg))
}
// funcName finds a suitable function name for logging.
func funcName() string {
pcs := make([]uintptr, 3)
runtime.Callers(3, pcs)
for _, pc := range pcs {
f := runtime.FuncForPC(pc)
if f == nil {
continue
}
name := f.Name()
return name[strings.LastIndex(name, "/")+1:]
}
return "anonymous"
}