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// Package text implements a development-friendly textual handler.
package text
import (
"fmt"
"io"
"os"
"strings"
"github.com/bep/logg"
)
// Default handler outputting to stderr.
var Default = New(os.Stderr, Options{})
// Handler implementation.
type Handler struct {
opts Options
w io.Writer
}
// Options holds options for the text handler.
type Options struct {
// Separator is the separator between fields.
// Default is " ".
Separator string
}
// New handler.
func New(w io.Writer, opts Options) *Handler {
if opts.Separator == "" {
opts.Separator = " "
}
return &Handler{
w: w,
opts: opts,
}
}
// HandleLog implements logg.Handler.
func (h *Handler) HandleLog(e *logg.Entry) error {
fields := make([]string, len(e.Fields))
for i, f := range e.Fields {
fields[i] = fmt.Sprintf("%s=%v", f.Name, f.Value)
}
fmt.Fprintf(h.w, "%s%s%s%s%s\n", strings.ToUpper(e.Level.String()), h.opts.Separator, e.Message, h.opts.Separator, strings.Join(fields, h.opts.Separator))
return nil
}
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