Renovate Bot
1a7b182350
This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [github.com/rs/zerolog](https://github.com/rs/zerolog) | require | minor | `v1.31.0` -> `v1.33.0` | > ❗ **Important** > > Release Notes retrieval for this PR were skipped because no github.com credentials were available. > If you are self-hosted, please see [this instruction](https://github.com/renovatebot/renovate/blob/master/docs/usage/examples/self-hosting.md#githubcom-token-for-release-notes). --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOC4yMS4yIiwidXBkYXRlZEluVmVyIjoiMzguMjEuMiIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOltdfQ==--> Reviewed-on: #3 Co-authored-by: Renovate Bot <renovate@keks.cloud> Co-committed-by: Renovate Bot <renovate@keks.cloud>
346 lines
9.1 KiB
Go
346 lines
9.1 KiB
Go
package zerolog
|
|
|
|
import (
|
|
"bytes"
|
|
"io"
|
|
"path"
|
|
"runtime"
|
|
"strconv"
|
|
"strings"
|
|
"sync"
|
|
)
|
|
|
|
// LevelWriter defines as interface a writer may implement in order
|
|
// to receive level information with payload.
|
|
type LevelWriter interface {
|
|
io.Writer
|
|
WriteLevel(level Level, p []byte) (n int, err error)
|
|
}
|
|
|
|
// LevelWriterAdapter adapts an io.Writer to support the LevelWriter interface.
|
|
type LevelWriterAdapter struct {
|
|
io.Writer
|
|
}
|
|
|
|
// WriteLevel simply writes everything to the adapted writer, ignoring the level.
|
|
func (lw LevelWriterAdapter) WriteLevel(l Level, p []byte) (n int, err error) {
|
|
return lw.Write(p)
|
|
}
|
|
|
|
// Call the underlying writer's Close method if it is an io.Closer. Otherwise
|
|
// does nothing.
|
|
func (lw LevelWriterAdapter) Close() error {
|
|
if closer, ok := lw.Writer.(io.Closer); ok {
|
|
return closer.Close()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
type syncWriter struct {
|
|
mu sync.Mutex
|
|
lw LevelWriter
|
|
}
|
|
|
|
// SyncWriter wraps w so that each call to Write is synchronized with a mutex.
|
|
// This syncer can be used to wrap the call to writer's Write method if it is
|
|
// not thread safe. Note that you do not need this wrapper for os.File Write
|
|
// operations on POSIX and Windows systems as they are already thread-safe.
|
|
func SyncWriter(w io.Writer) io.Writer {
|
|
if lw, ok := w.(LevelWriter); ok {
|
|
return &syncWriter{lw: lw}
|
|
}
|
|
return &syncWriter{lw: LevelWriterAdapter{w}}
|
|
}
|
|
|
|
// Write implements the io.Writer interface.
|
|
func (s *syncWriter) Write(p []byte) (n int, err error) {
|
|
s.mu.Lock()
|
|
defer s.mu.Unlock()
|
|
return s.lw.Write(p)
|
|
}
|
|
|
|
// WriteLevel implements the LevelWriter interface.
|
|
func (s *syncWriter) WriteLevel(l Level, p []byte) (n int, err error) {
|
|
s.mu.Lock()
|
|
defer s.mu.Unlock()
|
|
return s.lw.WriteLevel(l, p)
|
|
}
|
|
|
|
func (s *syncWriter) Close() error {
|
|
s.mu.Lock()
|
|
defer s.mu.Unlock()
|
|
if closer, ok := s.lw.(io.Closer); ok {
|
|
return closer.Close()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
type multiLevelWriter struct {
|
|
writers []LevelWriter
|
|
}
|
|
|
|
func (t multiLevelWriter) Write(p []byte) (n int, err error) {
|
|
for _, w := range t.writers {
|
|
if _n, _err := w.Write(p); err == nil {
|
|
n = _n
|
|
if _err != nil {
|
|
err = _err
|
|
} else if _n != len(p) {
|
|
err = io.ErrShortWrite
|
|
}
|
|
}
|
|
}
|
|
return n, err
|
|
}
|
|
|
|
func (t multiLevelWriter) WriteLevel(l Level, p []byte) (n int, err error) {
|
|
for _, w := range t.writers {
|
|
if _n, _err := w.WriteLevel(l, p); err == nil {
|
|
n = _n
|
|
if _err != nil {
|
|
err = _err
|
|
} else if _n != len(p) {
|
|
err = io.ErrShortWrite
|
|
}
|
|
}
|
|
}
|
|
return n, err
|
|
}
|
|
|
|
// Calls close on all the underlying writers that are io.Closers. If any of the
|
|
// Close methods return an error, the remainder of the closers are not closed
|
|
// and the error is returned.
|
|
func (t multiLevelWriter) Close() error {
|
|
for _, w := range t.writers {
|
|
if closer, ok := w.(io.Closer); ok {
|
|
if err := closer.Close(); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// MultiLevelWriter creates a writer that duplicates its writes to all the
|
|
// provided writers, similar to the Unix tee(1) command. If some writers
|
|
// implement LevelWriter, their WriteLevel method will be used instead of Write.
|
|
func MultiLevelWriter(writers ...io.Writer) LevelWriter {
|
|
lwriters := make([]LevelWriter, 0, len(writers))
|
|
for _, w := range writers {
|
|
if lw, ok := w.(LevelWriter); ok {
|
|
lwriters = append(lwriters, lw)
|
|
} else {
|
|
lwriters = append(lwriters, LevelWriterAdapter{w})
|
|
}
|
|
}
|
|
return multiLevelWriter{lwriters}
|
|
}
|
|
|
|
// TestingLog is the logging interface of testing.TB.
|
|
type TestingLog interface {
|
|
Log(args ...interface{})
|
|
Logf(format string, args ...interface{})
|
|
Helper()
|
|
}
|
|
|
|
// TestWriter is a writer that writes to testing.TB.
|
|
type TestWriter struct {
|
|
T TestingLog
|
|
|
|
// Frame skips caller frames to capture the original file and line numbers.
|
|
Frame int
|
|
}
|
|
|
|
// NewTestWriter creates a writer that logs to the testing.TB.
|
|
func NewTestWriter(t TestingLog) TestWriter {
|
|
return TestWriter{T: t}
|
|
}
|
|
|
|
// Write to testing.TB.
|
|
func (t TestWriter) Write(p []byte) (n int, err error) {
|
|
t.T.Helper()
|
|
|
|
n = len(p)
|
|
|
|
// Strip trailing newline because t.Log always adds one.
|
|
p = bytes.TrimRight(p, "\n")
|
|
|
|
// Try to correct the log file and line number to the caller.
|
|
if t.Frame > 0 {
|
|
_, origFile, origLine, _ := runtime.Caller(1)
|
|
_, frameFile, frameLine, ok := runtime.Caller(1 + t.Frame)
|
|
if ok {
|
|
erase := strings.Repeat("\b", len(path.Base(origFile))+len(strconv.Itoa(origLine))+3)
|
|
t.T.Logf("%s%s:%d: %s", erase, path.Base(frameFile), frameLine, p)
|
|
return n, err
|
|
}
|
|
}
|
|
t.T.Log(string(p))
|
|
|
|
return n, err
|
|
}
|
|
|
|
// ConsoleTestWriter creates an option that correctly sets the file frame depth for testing.TB log.
|
|
func ConsoleTestWriter(t TestingLog) func(w *ConsoleWriter) {
|
|
return func(w *ConsoleWriter) {
|
|
w.Out = TestWriter{T: t, Frame: 6}
|
|
}
|
|
}
|
|
|
|
// FilteredLevelWriter writes only logs at Level or above to Writer.
|
|
//
|
|
// It should be used only in combination with MultiLevelWriter when you
|
|
// want to write to multiple destinations at different levels. Otherwise
|
|
// you should just set the level on the logger and filter events early.
|
|
// When using MultiLevelWriter then you set the level on the logger to
|
|
// the lowest of the levels you use for writers.
|
|
type FilteredLevelWriter struct {
|
|
Writer LevelWriter
|
|
Level Level
|
|
}
|
|
|
|
// Write writes to the underlying Writer.
|
|
func (w *FilteredLevelWriter) Write(p []byte) (int, error) {
|
|
return w.Writer.Write(p)
|
|
}
|
|
|
|
// WriteLevel calls WriteLevel of the underlying Writer only if the level is equal
|
|
// or above the Level.
|
|
func (w *FilteredLevelWriter) WriteLevel(level Level, p []byte) (int, error) {
|
|
if level >= w.Level {
|
|
return w.Writer.WriteLevel(level, p)
|
|
}
|
|
return len(p), nil
|
|
}
|
|
|
|
var triggerWriterPool = &sync.Pool{
|
|
New: func() interface{} {
|
|
return bytes.NewBuffer(make([]byte, 0, 1024))
|
|
},
|
|
}
|
|
|
|
// TriggerLevelWriter buffers log lines at the ConditionalLevel or below
|
|
// until a trigger level (or higher) line is emitted. Log lines with level
|
|
// higher than ConditionalLevel are always written out to the destination
|
|
// writer. If trigger never happens, buffered log lines are never written out.
|
|
//
|
|
// It can be used to configure "log level per request".
|
|
type TriggerLevelWriter struct {
|
|
// Destination writer. If LevelWriter is provided (usually), its WriteLevel is used
|
|
// instead of Write.
|
|
io.Writer
|
|
|
|
// ConditionalLevel is the level (and below) at which lines are buffered until
|
|
// a trigger level (or higher) line is emitted. Usually this is set to DebugLevel.
|
|
ConditionalLevel Level
|
|
|
|
// TriggerLevel is the lowest level that triggers the sending of the conditional
|
|
// level lines. Usually this is set to ErrorLevel.
|
|
TriggerLevel Level
|
|
|
|
buf *bytes.Buffer
|
|
triggered bool
|
|
mu sync.Mutex
|
|
}
|
|
|
|
func (w *TriggerLevelWriter) WriteLevel(l Level, p []byte) (n int, err error) {
|
|
w.mu.Lock()
|
|
defer w.mu.Unlock()
|
|
|
|
// At first trigger level or above log line, we flush the buffer and change the
|
|
// trigger state to triggered.
|
|
if !w.triggered && l >= w.TriggerLevel {
|
|
err := w.trigger()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
}
|
|
|
|
// Unless triggered, we buffer everything at and below ConditionalLevel.
|
|
if !w.triggered && l <= w.ConditionalLevel {
|
|
if w.buf == nil {
|
|
w.buf = triggerWriterPool.Get().(*bytes.Buffer)
|
|
}
|
|
|
|
// We prefix each log line with a byte with the level.
|
|
// Hopefully we will never have a level value which equals a newline
|
|
// (which could interfere with reconstruction of log lines in the trigger method).
|
|
w.buf.WriteByte(byte(l))
|
|
w.buf.Write(p)
|
|
return len(p), nil
|
|
}
|
|
|
|
// Anything above ConditionalLevel is always passed through.
|
|
// Once triggered, everything is passed through.
|
|
if lw, ok := w.Writer.(LevelWriter); ok {
|
|
return lw.WriteLevel(l, p)
|
|
}
|
|
return w.Write(p)
|
|
}
|
|
|
|
// trigger expects lock to be held.
|
|
func (w *TriggerLevelWriter) trigger() error {
|
|
if w.triggered {
|
|
return nil
|
|
}
|
|
w.triggered = true
|
|
|
|
if w.buf == nil {
|
|
return nil
|
|
}
|
|
|
|
p := w.buf.Bytes()
|
|
for len(p) > 0 {
|
|
// We do not use bufio.Scanner here because we already have full buffer
|
|
// in the memory and we do not want extra copying from the buffer to
|
|
// scanner's token slice, nor we want to hit scanner's token size limit,
|
|
// and we also want to preserve newlines.
|
|
i := bytes.IndexByte(p, '\n')
|
|
line := p[0 : i+1]
|
|
p = p[i+1:]
|
|
// We prefixed each log line with a byte with the level.
|
|
level := Level(line[0])
|
|
line = line[1:]
|
|
var err error
|
|
if lw, ok := w.Writer.(LevelWriter); ok {
|
|
_, err = lw.WriteLevel(level, line)
|
|
} else {
|
|
_, err = w.Write(line)
|
|
}
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// Trigger forces flushing the buffer and change the trigger state to
|
|
// triggered, if the writer has not already been triggered before.
|
|
func (w *TriggerLevelWriter) Trigger() error {
|
|
w.mu.Lock()
|
|
defer w.mu.Unlock()
|
|
|
|
return w.trigger()
|
|
}
|
|
|
|
// Close closes the writer and returns the buffer to the pool.
|
|
func (w *TriggerLevelWriter) Close() error {
|
|
w.mu.Lock()
|
|
defer w.mu.Unlock()
|
|
|
|
if w.buf == nil {
|
|
return nil
|
|
}
|
|
|
|
// We return the buffer only if it has not grown above the limit.
|
|
// This prevents accumulation of large buffers in the pool just
|
|
// because occasionally a large buffer might be needed.
|
|
if w.buf.Cap() <= TriggerLevelWriterBufferReuseLimit {
|
|
w.buf.Reset()
|
|
triggerWriterPool.Put(w.buf)
|
|
}
|
|
w.buf = nil
|
|
|
|
return nil
|
|
}
|