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log: remove unused code, un-exports other code, clean up

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This commit is contained in:
Martin Holst Swende 2023-11-29 10:27:42 +01:00
parent dd0d0a2522
commit 7d4613f39f
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GPG key ID: 683B438C05A5DDF0
4 changed files with 21 additions and 51 deletions
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6
internal/debug/flags.go
View file

@ -241,11 +241,11 @@ func Setup(ctx *cli.Context) error {
case ctx.Bool(logjsonFlag.Name):
// Retain backwards compatibility with `--log.json` flag if `--log.format` not set
defer log.Warn("The flag '--log.json' is deprecated, please use '--log.format=json' instead")
handler = log.JSONHandler(output)
handler = log.NewJSONHandler(output)
case logFmtFlag == "json":
handler = log.JSONHandler(output)
handler = log.NewJSONHandler(output)
case logFmtFlag == "logfmt":
handler = log.LogfmtHandler(output)
handler = log.NewLogfmtHandler(output)
case logFmtFlag == "", logFmtFlag == "terminal":
useColor := (isatty.IsTerminal(os.Stderr.Fd()) || isatty.IsCygwinTerminal(os.Stderr.Fd())) && os.Getenv("TERM") != "dumb"
if useColor {

2
internal/testlog/testlog.go
View file

@ -183,7 +183,7 @@ func (h *bufHandler) terminalFormat(r slog.Record) string {
}
for _, attr := range attrs {
fmt.Fprintf(buf, " %s=%s", attr.Key, string(log.FormatSlogValue(attr.Value, true, nil)))
fmt.Fprintf(buf, " %s=%s", attr.Key, string(log.FormatSlogValue(attr.Value, nil)))
}
buf.WriteByte('\n')
return buf.String()

53
log/format.go
View file

@ -23,22 +23,6 @@ const (
// 40 spaces
var spaces = []byte(" ")
type Format interface {
Format(r slog.Record) []byte
}
// FormatFunc returns a new Format object which uses
// the given function to perform record formatting.
func FormatFunc(f func(slog.Record) []byte) Format {
return formatFunc(f)
}
type formatFunc func(slog.Record) []byte
func (f formatFunc) Format(r slog.Record) []byte {
return f(r)
}
// TerminalStringer is an analogous interface to the stdlib stringer, allowing
// own types to have custom shortened serialization formats when printed to the
// screen.
@ -46,7 +30,7 @@ type TerminalStringer interface {
TerminalString() string
}
func (h *TerminalHandler) TerminalFormat(buf []byte, r slog.Record, usecolor bool) []byte {
func (h *TerminalHandler) format(buf []byte, r slog.Record, usecolor bool) []byte {
msg := escapeMessage(r.Message)
var color = ""
if usecolor {
@ -88,13 +72,13 @@ func (h *TerminalHandler) TerminalFormat(buf []byte, r slog.Record, usecolor boo
if (r.NumAttrs()+len(h.attrs)) > 0 && length < termMsgJust {
b.Write(spaces[:termMsgJust-length])
}
// print the keys logfmt style
h.logfmt(b, r, color)
// print the attributes
h.formatAttributes(b, r, color)
return b.Bytes()
}
func (h *TerminalHandler) logfmt(buf *bytes.Buffer, r slog.Record, color string) {
func (h *TerminalHandler) formatAttributes(buf *bytes.Buffer, r slog.Record, color string) {
// tmp is a temporary buffer we use, until bytes.Buffer.AvailableBuffer() (1.21)
// can be used.
var tmp = make([]byte, 40)
@ -112,7 +96,7 @@ func (h *TerminalHandler) logfmt(buf *bytes.Buffer, r slog.Record, color string)
buf.WriteByte('=')
}
//val := FormatSlogValue(attr.Value, true, buf.AvailableBuffer())
val := FormatSlogValue(attr.Value, true, tmp[:0])
val := FormatSlogValue(attr.Value, tmp[:0])
padding := h.fieldPadding[attr.Key]
@ -140,8 +124,8 @@ func (h *TerminalHandler) logfmt(buf *bytes.Buffer, r slog.Record, color string)
buf.WriteByte('\n')
}
// FormatSlogValue formats a slog.Value for serialization
func FormatSlogValue(v slog.Value, term bool, tmp []byte) (result []byte) {
// FormatSlogValue formats a slog.Value for serialization to terminal.
func FormatSlogValue(v slog.Value, tmp []byte) (result []byte) {
var value any
defer func() {
if err := recover(); err != nil {
@ -156,11 +140,9 @@ func FormatSlogValue(v slog.Value, term bool, tmp []byte) (result []byte) {
switch v.Kind() {
case slog.KindString:
return appendEscapeString(tmp, v.String())
case slog.KindAny:
value = v.Any()
case slog.KindInt64: // All int-types (int8, int16 etc) wind up here
return appendInt64(tmp, v.Int64())
case slog.KindUint64: // All uint-types (int8 ,int16 etc) wind up here
case slog.KindUint64: // All uint-types (uint8, uint16 etc) wind up here
return appendUint64(tmp, v.Uint64(), false)
case slog.KindFloat64:
return strconv.AppendFloat(tmp, v.Float64(), floatFormat, 3, 64)
@ -180,27 +162,14 @@ func FormatSlogValue(v slog.Value, term bool, tmp []byte) (result []byte) {
return []byte("<nil>")
}
switch v := value.(type) {
case *big.Int:
// Big ints get consumed by the Stringer clause, so we need to handle
// them earlier on.
if v == nil {
return append(tmp, []byte("<nil>")...)
}
case *big.Int: // Need to be before fmt.Stringer-clause
return appendBigInt(tmp, v)
case *uint256.Int:
// Uint256s get consumed by the Stringer clause, so we need to handle
// them earlier on.
if v == nil {
return append(tmp, []byte("<nil>")...)
}
case *uint256.Int: // Need to be before fmt.Stringer-clause
return appendU256(tmp, v)
case error:
return appendEscapeString(tmp, v.Error())
case TerminalStringer:
if term {
return appendEscapeString(tmp, v.TerminalString()) // Custom terminal stringer provided, use that
}
return appendEscapeString(tmp, v.TerminalString())
case fmt.Stringer:
return appendEscapeString(tmp, v.String())
}

9
log/handler.go
View file

@ -112,7 +112,7 @@ func NewTerminalHandlerWithLevel(wr io.Writer, lvl slog.Level, useColor bool) *T
func (h *TerminalHandler) Handle(_ context.Context, r slog.Record) error {
h.mu.Lock()
defer h.mu.Unlock()
buf := h.TerminalFormat(h.buf, r, h.useColor)
buf := h.format(h.buf, r, h.useColor)
h.wr.Write(buf)
h.buf = buf[:0]
return nil
@ -149,17 +149,18 @@ func (l *leveler) Level() slog.Level {
return l.minLevel
}
func JSONHandler(wr io.Writer) slog.Handler {
// NewJSONHandler returns a handler which prints records in JSON format.
func NewJSONHandler(wr io.Writer) slog.Handler {
return slog.NewJSONHandler(wr, &slog.HandlerOptions{
ReplaceAttr: builtinReplaceJSON,
})
}
// LogfmtHandler returns a handler which prints records in logfmt format, an easy machine-parseable but human-readable
// NewLogfmtHandler returns a handler which prints records in logfmt format, an easy machine-parseable but human-readable
// format for key/value pairs.
//
// For more details see: http://godoc.org/github.com/kr/logfmt
func LogfmtHandler(wr io.Writer) slog.Handler {
func NewLogfmtHandler(wr io.Writer) slog.Handler {
return slog.NewTextHandler(wr, &slog.HandlerOptions{
ReplaceAttr: builtinReplaceLogfmt,
})