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options.go
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options.go
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package log
import (
"io"
"go.uber.org/zap/zapcore"
)
type RotationConfig struct {
MaxSize int `json:"maxSize"` // megabytes
MaxAge int `json:"maxAge"` // days
MaxBackups int `json:"maxBackups"` // count
LocalTime bool `json:"localTime"`
Compress bool `json:"compress"`
}
func (c RotationConfig) apply(o *options) {
if c.MaxAge > 0 {
o.MaxAge = c.MaxAge
}
if c.MaxBackups > 0 {
o.MaxBackups = c.MaxBackups
}
if c.MaxSize > 0 {
o.MaxSize = c.MaxSize
}
o.Compress = c.Compress
o.LocalTime = c.LocalTime
}
type options struct {
RotationConfig
Level Level
Format Format
Encoder zapcore.Encoder
Development bool
Output io.Writer
LogToStdout bool
LogDirs []string
LogFiles []string
AddCaller bool
CallerSkip int
}
func (o options) Clone() options {
c := options{
RotationConfig: o.RotationConfig,
Level: o.Level,
Format: o.Format,
Development: o.Development,
Output: o.Output,
LogToStdout: o.LogToStdout,
AddCaller: o.AddCaller,
CallerSkip: o.CallerSkip,
}
if o.Encoder != nil {
c.Encoder = o.Encoder.Clone()
}
if len(o.LogDirs) > 0 {
c.LogDirs = make([]string, len(o.LogDirs))
copy(c.LogDirs, o.LogDirs)
}
if len(o.LogFiles) > 0 {
c.LogFiles = make([]string, len(o.LogFiles))
copy(c.LogFiles, o.LogFiles)
}
return c
}
func (o options) ZapLevelEnabled(lvl zapcore.Level) bool {
return o.Development || o.Level.Enabled(fromZapLevel(lvl))
}
type Option interface {
apply(*options)
}
type optionFunc func(*options)
func (f optionFunc) apply(log *options) {
f(log)
}
func WithLevel(lvl Level) Option {
return optionFunc(func(l *options) {
l.Level = lvl
})
}
func WithFormat(format Format) Option {
return optionFunc(func(l *options) {
l.Format = format
})
}
func Development() Option {
return WithDevelopment(true)
}
func WithDevelopment(development bool) Option {
return optionFunc(func(l *options) {
l.Development = development
})
}
func WithEncoder(encoder zapcore.Encoder) Option {
return optionFunc(func(l *options) {
l.Encoder = encoder
})
}
func WithOutput(output io.Writer) Option {
return optionFunc(func(l *options) {
l.Output = output
})
}
func LogToStdout() Option {
return WithLogToStdout(true)
}
func WithLogToStdout(logToStdout bool) Option {
return optionFunc(func(l *options) {
l.LogToStdout = logToStdout
})
}
func WithLogDirs(dirs ...string) Option {
return optionFunc(func(l *options) {
dst := make([]string, len(dirs))
copy(dst, dirs)
l.LogDirs = dst
})
}
func WithLogFiles(files ...string) Option {
return optionFunc(func(l *options) {
dst := make([]string, len(files))
copy(dst, files)
l.LogFiles = dst
})
}
func WithCaller(caller bool) Option {
return optionFunc(func(l *options) {
l.AddCaller = caller
})
}
func AddCaller() Option {
return WithCaller(true)
}
func AddCallerSkip(skip int) Option {
return optionFunc(func(l *options) {
l.CallerSkip += skip
})
}