/
options.go
76 lines (61 loc) · 1.49 KB
/
options.go
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package logger
import "github.com/kelseyhightower/envconfig"
// ConfigPrefix defines the configuration prefix
var ConfigPrefix = "LOGGER"
// Option represents an option
type Option func(*Options)
// Options represents the logger options
type Options struct {
Level string `default:"info" envconfig:"LEVEL"`
Format string `default:"json" envconfig:"FORMAT"`
InstName string `default:"unknown" envconfig:"INST_NAME"`
InstVersion string `default:"unknown" envconfig:"INST_VERSION"`
DefaultFields []Field `ignored:"true" json:"-"`
}
func newOptions(opts ...Option) (*Options, error) {
opt := Options{}
err := envconfig.Process(ConfigPrefix, &opt)
if err != nil {
return nil, err
}
for _, o := range opts {
o(&opt)
}
if opt.Level == "" {
opt.Level = "info"
}
if opt.Format == "" {
opt.Format = "text"
}
return &opt, nil
}
// DefaultFields returns default fields option
func DefaultFields(fields ...Field) Option {
return func(o *Options) {
o.DefaultFields = fields
}
}
// Level returns level option
func Level(level string) Option {
return func(o *Options) {
o.Level = level
}
}
// Format returns format option
func Format(format string) Option {
return func(o *Options) {
o.Format = format
}
}
// InstName returns instance name option
func InstName(instName string) Option {
return func(o *Options) {
o.InstName = instName
}
}
// InstVersion returns instance option
func InstVersion(instVersion string) Option {
return func(o *Options) {
o.InstVersion = instVersion
}
}