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config.go
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config.go
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/*
* Copyright 2020 The Compass Authors
*
* 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 (
"fmt"
"os"
"github.com/sirupsen/logrus"
)
// Config missing godoc
type Config struct {
Level string `envconfig:"APP_LOG_LEVEL,default=info"`
Format string `envconfig:"APP_LOG_FORMAT,default=text"`
Output string `envconfig:"APP_LOG_OUTPUT,default=/dev/stdout"`
BootstrapCorrelationID string `envconfig:"APP_LOG_BOOTSTRAP_CORRELATION_ID,default=bootstrap"`
}
// DefaultConfig returns default values for Log settings
func DefaultConfig() *Config {
return &Config{
Level: "info",
Format: "text",
Output: os.Stdout.Name(),
BootstrapCorrelationID: "bootstrap",
}
}
// Validate validates the logging settings
func (s *Config) Validate() error {
if _, err := logrus.ParseLevel(s.Level); err != nil {
return fmt.Errorf("validate Config: log level %s is invalid: %s", s.Level, err)
}
if len(s.Format) == 0 {
return fmt.Errorf("validate Config: log format missing")
}
if _, ok := supportedFormatters[s.Format]; !ok {
return fmt.Errorf("validate Config: log format %s is invalid", s.Format)
}
if len(s.Output) == 0 {
return fmt.Errorf("validate Config: log output missing")
}
if _, ok := supportedOutputs[s.Output]; !ok {
return fmt.Errorf("validate Config: log output %s is invalid", s.Output)
}
if s.BootstrapCorrelationID == "" {
return fmt.Errorf("validate Config: bootstrap correlation id cannot be empty")
}
return nil
}