62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
package log
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import (
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"context"
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"io"
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"os"
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"time"
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)
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const defaultPattern = "%L %d-%T %f %M"
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var _defaultStdout = NewStdout()
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// StdoutHandler stdout log handler
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type StdoutHandler struct {
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out io.Writer
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render Render
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}
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// NewStdout create a stdout log handler
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func NewStdout() *StdoutHandler {
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return &StdoutHandler{
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out: os.Stderr,
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render: newPatternRender(defaultPattern),
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}
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}
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// Log stdout loging, only for developing env.
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func (h *StdoutHandler) Log(ctx context.Context, lv Level, args ...D) {
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d := make(map[string]interface{}, 10+len(args))
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for _, arg := range args {
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d[arg.Key] = arg.Value
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}
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// add extra fields
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addExtraField(ctx, d)
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d[_time] = time.Now().Format(_timeFormat)
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h.render.Render(h.out, d)
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h.out.Write([]byte("\n"))
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}
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// Close stdout loging
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func (h *StdoutHandler) Close() error {
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return nil
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}
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// SetFormat set stdout log output format
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// %T time format at "15:04:05.999"
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// %t time format at "15:04:05"
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// %D data format at "2006/01/02"
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// %d data format at "01/02"
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// %L log level e.g. INFO WARN ERROR
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// %f function name and line number e.g. model.Get:121
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// %i instance id
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// %e deploy env e.g. dev uat fat prod
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// %z zone
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// %S full file name and line number: /a/b/c/d.go:23
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// %s final file name element and line number: d.go:23
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// %M log message and additional fields: key=value this is log message
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func (h *StdoutHandler) SetFormat(format string) {
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h.render = newPatternRender(format)
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}
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