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restic/vendor/github.com/kurin/blazer/internal/blog/blog.go
2017-09-13 14:09:48 +02:00

55 lines
1.2 KiB
Go

// Copyright 2017, Google
//
// 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 blog implements a private logger, in the manner of glog, without
// polluting the flag namespace or leaving files all over /tmp.
//
// It has almost no features, and a bunch of global state.
package blog
import (
"log"
"os"
"strconv"
)
var level int32
type Verbose bool
func init() {
lvl := os.Getenv("B2_LOG_LEVEL")
i, err := strconv.ParseInt(lvl, 10, 32)
if err != nil {
return
}
level = int32(i)
}
func (v Verbose) Info(a ...interface{}) {
if v {
log.Print(a...)
}
}
func (v Verbose) Infof(format string, a ...interface{}) {
if v {
log.Printf(format, a...)
}
}
func V(target int32) Verbose {
return Verbose(target <= level)
}