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config.go
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config.go
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// Copyright 2018 ETH Zurich, Anapaya Systems
//
// 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 log
import (
"io"
"strings"
"github.com/scionproto/scion/private/config"
)
const (
// DefaultConsoleLevel is the default log level for the console.
DefaultConsoleLevel = "info"
// DefaultStacktraceLevel is the default log level for which stack traces are included.
DefaultStacktraceLevel = "none"
)
// Config is the configuration for the logger.
type Config struct {
config.NoValidator
// Console is the configuration for the console logging.
Console ConsoleConfig `toml:"console,omitempty"`
}
// InitDefaults populates unset fields in cfg to their default values (if they
// have one).
func (c *Config) InitDefaults() {
c.Console.InitDefaults()
}
// Sample writes the sample configuration to the dst writer.
func (c *Config) Sample(dst io.Writer, path config.Path, ctx config.CtxMap) {
config.WriteSample(dst, path, nil,
config.StringSampler{
Text: loggingConsoleSample,
Name: "console",
},
)
}
// ConfigName returns the name this config should have in a struct embedding
// this.
func (c *Config) ConfigName() string {
return "log"
}
// ConsoleConfig is the config for the console logger.
type ConsoleConfig struct {
// Level of console logging (defaults to DefaultConsoleLevel).
Level string `toml:"level,omitempty"`
// Format of the console logging. (human|json)
Format string `toml:"format,omitempty"`
// StacktraceLevel sets from which level stacktraces are included.
StacktraceLevel string `toml:"stacktrace_level,omitempty"`
// DisableCaller stops annotating logs with the calling function's file
// name and line number. By default, all logs are annotated.
DisableCaller bool `toml:"disable_caller,omitempty"`
}
// InitDefaults populates unset fields in cfg to their default values (if they
// have one).
func (c *ConsoleConfig) InitDefaults() {
if c.Level == "" {
c.Level = DefaultConsoleLevel
}
if !strings.EqualFold(c.Format, "json") {
c.Format = "human"
}
if c.StacktraceLevel == "" {
c.StacktraceLevel = DefaultStacktraceLevel
}
}