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Update vendor, move to labstack/echo/v4 Fixes #698
This commit is contained in:
Wim
217
vendor/github.com/labstack/echo/v4/middleware/logger.go
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vendored
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217
vendor/github.com/labstack/echo/v4/middleware/logger.go
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package middleware
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import (
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"bytes"
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"io"
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"os"
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/labstack/echo/v4"
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"github.com/labstack/gommon/color"
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"github.com/valyala/fasttemplate"
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)
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type (
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// LoggerConfig defines the config for Logger middleware.
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LoggerConfig struct {
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// Skipper defines a function to skip middleware.
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Skipper Skipper
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// Tags to constructed the logger format.
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//
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// - time_unix
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// - time_unix_nano
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// - time_rfc3339
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// - time_rfc3339_nano
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// - time_custom
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// - id (Request ID)
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// - remote_ip
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// - uri
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// - host
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// - method
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// - path
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// - protocol
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// - referer
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// - user_agent
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// - status
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// - error
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// - latency (In nanoseconds)
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// - latency_human (Human readable)
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// - bytes_in (Bytes received)
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// - bytes_out (Bytes sent)
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// - header:<NAME>
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// - query:<NAME>
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// - form:<NAME>
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//
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// Example "${remote_ip} ${status}"
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//
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// Optional. Default value DefaultLoggerConfig.Format.
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Format string `yaml:"format"`
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// Optional. Default value DefaultLoggerConfig.CustomTimeFormat.
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CustomTimeFormat string `yaml:"custom_time_format"`
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// Output is a writer where logs in JSON format are written.
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// Optional. Default value os.Stdout.
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Output io.Writer
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template *fasttemplate.Template
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colorer *color.Color
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pool *sync.Pool
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}
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)
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var (
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// DefaultLoggerConfig is the default Logger middleware config.
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DefaultLoggerConfig = LoggerConfig{
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Skipper: DefaultSkipper,
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Format: `{"time":"${time_rfc3339_nano}","id":"${id}","remote_ip":"${remote_ip}",` +
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`"host":"${host}","method":"${method}","uri":"${uri}","user_agent":"${user_agent}",` +
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`"status":${status},"error":"${error}","latency":${latency},"latency_human":"${latency_human}"` +
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`,"bytes_in":${bytes_in},"bytes_out":${bytes_out}}` + "\n",
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CustomTimeFormat: "2006-01-02 15:04:05.00000",
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Output: os.Stdout,
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colorer: color.New(),
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}
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)
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// Logger returns a middleware that logs HTTP requests.
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func Logger() echo.MiddlewareFunc {
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return LoggerWithConfig(DefaultLoggerConfig)
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}
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// LoggerWithConfig returns a Logger middleware with config.
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// See: `Logger()`.
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func LoggerWithConfig(config LoggerConfig) echo.MiddlewareFunc {
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// Defaults
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if config.Skipper == nil {
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config.Skipper = DefaultLoggerConfig.Skipper
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}
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if config.Format == "" {
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config.Format = DefaultLoggerConfig.Format
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}
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if config.Output == nil {
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config.Output = DefaultLoggerConfig.Output
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}
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config.template = fasttemplate.New(config.Format, "${", "}")
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config.colorer = color.New()
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config.colorer.SetOutput(config.Output)
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config.pool = &sync.Pool{
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New: func() interface{} {
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return bytes.NewBuffer(make([]byte, 256))
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},
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}
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return func(next echo.HandlerFunc) echo.HandlerFunc {
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return func(c echo.Context) (err error) {
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if config.Skipper(c) {
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return next(c)
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}
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req := c.Request()
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res := c.Response()
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start := time.Now()
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if err = next(c); err != nil {
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c.Error(err)
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}
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stop := time.Now()
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buf := config.pool.Get().(*bytes.Buffer)
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buf.Reset()
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defer config.pool.Put(buf)
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if _, err = config.template.ExecuteFunc(buf, func(w io.Writer, tag string) (int, error) {
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switch tag {
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case "time_unix":
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return buf.WriteString(strconv.FormatInt(time.Now().Unix(), 10))
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case "time_unix_nano":
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return buf.WriteString(strconv.FormatInt(time.Now().UnixNano(), 10))
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case "time_rfc3339":
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return buf.WriteString(time.Now().Format(time.RFC3339))
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case "time_rfc3339_nano":
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return buf.WriteString(time.Now().Format(time.RFC3339Nano))
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case "time_custom":
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return buf.WriteString(time.Now().Format(config.CustomTimeFormat))
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case "id":
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id := req.Header.Get(echo.HeaderXRequestID)
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if id == "" {
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id = res.Header().Get(echo.HeaderXRequestID)
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}
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return buf.WriteString(id)
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case "remote_ip":
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return buf.WriteString(c.RealIP())
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case "host":
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return buf.WriteString(req.Host)
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case "uri":
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return buf.WriteString(req.RequestURI)
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case "method":
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return buf.WriteString(req.Method)
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case "path":
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p := req.URL.Path
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if p == "" {
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p = "/"
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}
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return buf.WriteString(p)
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case "protocol":
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return buf.WriteString(req.Proto)
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case "referer":
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return buf.WriteString(req.Referer())
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case "user_agent":
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return buf.WriteString(req.UserAgent())
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case "status":
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n := res.Status
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s := config.colorer.Green(n)
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switch {
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case n >= 500:
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s = config.colorer.Red(n)
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case n >= 400:
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s = config.colorer.Yellow(n)
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case n >= 300:
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s = config.colorer.Cyan(n)
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}
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return buf.WriteString(s)
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case "error":
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if err != nil {
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return buf.WriteString(err.Error())
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}
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case "latency":
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l := stop.Sub(start)
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return buf.WriteString(strconv.FormatInt(int64(l), 10))
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case "latency_human":
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return buf.WriteString(stop.Sub(start).String())
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case "bytes_in":
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cl := req.Header.Get(echo.HeaderContentLength)
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if cl == "" {
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cl = "0"
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}
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return buf.WriteString(cl)
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case "bytes_out":
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return buf.WriteString(strconv.FormatInt(res.Size, 10))
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default:
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switch {
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case strings.HasPrefix(tag, "header:"):
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return buf.Write([]byte(c.Request().Header.Get(tag[7:])))
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case strings.HasPrefix(tag, "query:"):
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return buf.Write([]byte(c.QueryParam(tag[6:])))
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case strings.HasPrefix(tag, "form:"):
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return buf.Write([]byte(c.FormValue(tag[5:])))
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case strings.HasPrefix(tag, "cookie:"):
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cookie, err := c.Cookie(tag[7:])
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if err == nil {
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return buf.Write([]byte(cookie.Value))
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}
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}
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}
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return 0, nil
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}); err != nil {
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return
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}
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_, err = config.Output.Write(buf.Bytes())
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return
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}
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}
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}
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