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[chore] small logging cleanup (#869) 

* handle more syslogging levels, use singular time format variable, add entry .New() function

* pass in calldepth to lower log functions to ensure correctly set

* update truncate length in syslog test
This commit is contained in:
kim 2022-10-01 16:36:08 +01:00 committed by GitHub
parent 1d999712e6
commit 9fcfe61410
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3 changed files with 75 additions and 61 deletions
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36
internal/log/entry.go
View File

@ -41,77 +41,77 @@ func (e Entry) WithFields(fields ...kv.Field) Entry {
}
func (e Entry) Trace(a ...interface{}) {
logf(level.TRACE, e.fields, args(len(a)), a...)
logf(3, level.TRACE, e.fields, args(len(a)), a...)
}
func (e Entry) Tracef(s string, a ...interface{}) {
logf(level.TRACE, e.fields, s, a...)
logf(3, level.TRACE, e.fields, s, a...)
}
func (e Entry) Debug(a ...interface{}) {
logf(level.DEBUG, e.fields, args(len(a)), a...)
logf(3, level.DEBUG, e.fields, args(len(a)), a...)
}
func (e Entry) Debugf(s string, a ...interface{}) {
logf(level.DEBUG, e.fields, s, a...)
logf(3, level.DEBUG, e.fields, s, a...)
}
func (e Entry) Info(a ...interface{}) {
logf(level.INFO, e.fields, args(len(a)), a...)
logf(3, level.INFO, e.fields, args(len(a)), a...)
}
func (e Entry) Infof(s string, a ...interface{}) {
logf(level.INFO, e.fields, s, a...)
logf(3, level.INFO, e.fields, s, a...)
}
func (e Entry) Warn(a ...interface{}) {
logf(level.WARN, e.fields, args(len(a)), a...)
logf(3, level.WARN, e.fields, args(len(a)), a...)
}
func (e Entry) Warnf(s string, a ...interface{}) {
logf(level.WARN, e.fields, s, a...)
logf(3, level.WARN, e.fields, s, a...)
}
func (e Entry) Error(a ...interface{}) {
logf(level.ERROR, e.fields, args(len(a)), a...)
logf(3, level.ERROR, e.fields, args(len(a)), a...)
}
func (e Entry) Errorf(s string, a ...interface{}) {
logf(level.ERROR, e.fields, s, a...)
logf(3, level.ERROR, e.fields, s, a...)
}
func (e Entry) Fatal(a ...interface{}) {
defer syscall.Exit(1)
logf(level.FATAL, e.fields, args(len(a)), a...)
logf(3, level.FATAL, e.fields, args(len(a)), a...)
}
func (e Entry) Fatalf(s string, a ...interface{}) {
defer syscall.Exit(1)
logf(level.FATAL, e.fields, s, a...)
logf(3, level.FATAL, e.fields, s, a...)
}
func (e Entry) Panic(a ...interface{}) {
defer panic(fmt.Sprint(a...))
logf(level.PANIC, e.fields, args(len(a)), a...)
logf(3, level.PANIC, e.fields, args(len(a)), a...)
}
func (e Entry) Panicf(s string, a ...interface{}) {
defer panic(fmt.Sprintf(s, a...))
logf(level.PANIC, e.fields, s, a...)
logf(3, level.PANIC, e.fields, s, a...)
}
func (e Entry) Log(lvl level.LEVEL, a ...interface{}) {
logf(lvl, e.fields, args(len(a)), a...)
logf(3, lvl, e.fields, args(len(a)), a...)
}
func (e Entry) Logf(lvl level.LEVEL, s string, a ...interface{}) {
logf(lvl, e.fields, s, a...)
logf(3, lvl, e.fields, s, a...)
}
func (e Entry) Print(a ...interface{}) {
printf(e.fields, args(len(a)), a...)
printf(3, e.fields, args(len(a)), a...)
}
func (e Entry) Printf(s string, a ...interface{}) {
printf(e.fields, s, a...)
printf(3, e.fields, s, a...)
}

96
internal/log/log.go
View File

@ -24,17 +24,17 @@ import (
"log/syslog"
"os"
"strings"
"sync/atomic"
"syscall"
"time"
"codeberg.org/gruf/go-atomics"
"codeberg.org/gruf/go-kv"
"codeberg.org/gruf/go-logger/v2/level"
)
var (
// loglvl is the currently set logging level.
loglvl atomics.Uint32
loglvl atomic.Uint32
// lvlstrs is the lookup table of log levels to strings.
lvlstrs = level.Default()
@ -45,6 +45,9 @@ var (
// Syslog output, only set if enabled.
sysout *syslog.Writer
// timefmt is the logging time format used.
timefmt = "02/01/2006 15:04:05.000"
)
// Level returns the currently set log level.
@ -57,6 +60,11 @@ func SetLevel(lvl level.LEVEL) {
loglvl.Store(uint32(lvl))
}
// New starts a new log entry.
func New() Entry {
return Entry{}
}
func WithField(key string, value interface{}) Entry {
return Entry{fields: []kv.Field{{K: key, V: value}}}
}
@ -66,98 +74,97 @@ func WithFields(fields ...kv.Field) Entry {
}
func Trace(a ...interface{}) {
logf(level.TRACE, nil, args(len(a)), a...)
logf(3, level.TRACE, nil, args(len(a)), a...)
}
func Tracef(s string, a ...interface{}) {
logf(level.TRACE, nil, s, a...)
logf(3, level.TRACE, nil, s, a...)
}
func Debug(a ...interface{}) {
logf(level.DEBUG, nil, args(len(a)), a...)
logf(3, level.DEBUG, nil, args(len(a)), a...)
}
func Debugf(s string, a ...interface{}) {
logf(level.DEBUG, nil, s, a...)
logf(3, level.DEBUG, nil, s, a...)
}
func Info(a ...interface{}) {
logf(level.INFO, nil, args(len(a)), a...)
logf(3, level.INFO, nil, args(len(a)), a...)
}
func Infof(s string, a ...interface{}) {
logf(level.INFO, nil, s, a...)
logf(3, level.INFO, nil, s, a...)
}
func Warn(a ...interface{}) {
logf(level.WARN, nil, args(len(a)), a...)
logf(3, level.WARN, nil, args(len(a)), a...)
}
func Warnf(s string, a ...interface{}) {
logf(level.WARN, nil, s, a...)
logf(3, level.WARN, nil, s, a...)
}
func Error(a ...interface{}) {
logf(level.ERROR, nil, args(len(a)), a...)
logf(3, level.ERROR, nil, args(len(a)), a...)
}
func Errorf(s string, a ...interface{}) {
logf(level.ERROR, nil, s, a...)
logf(3, level.ERROR, nil, s, a...)
}
func Fatal(a ...interface{}) {
defer syscall.Exit(1)
logf(level.FATAL, nil, args(len(a)), a...)
logf(3, level.FATAL, nil, args(len(a)), a...)
}
func Fatalf(s string, a ...interface{}) {
defer syscall.Exit(1)
logf(level.FATAL, nil, s, a...)
logf(3, level.FATAL, nil, s, a...)
}
func Panic(a ...interface{}) {
defer panic(fmt.Sprint(a...))
logf(level.PANIC, nil, args(len(a)), a...)
logf(3, level.PANIC, nil, args(len(a)), a...)
}
func Panicf(s string, a ...interface{}) {
defer panic(fmt.Sprintf(s, a...))
logf(level.PANIC, nil, s, a...)
logf(3, level.PANIC, nil, s, a...)
}
// Log will log formatted args as 'msg' field to the log at given level.
func Log(lvl level.LEVEL, a ...interface{}) {
logf(lvl, nil, args(len(a)), a...)
logf(3, lvl, nil, args(len(a)), a...)
}
// Logf will log format string as 'msg' field to the log at given level.
func Logf(lvl level.LEVEL, s string, a ...interface{}) {
logf(lvl, nil, s, a...)
logf(3, lvl, nil, s, a...)
}
// Print will log formatted args to the stdout log output.
func Print(a ...interface{}) {
printf(nil, args(len(a)), a...)
printf(3, nil, args(len(a)), a...)
}
// Print will log format string to the stdout log output.
func Printf(s string, a ...interface{}) {
printf(nil, s, a...)
printf(3, nil, s, a...)
}
func printf(fields []kv.Field, s string, a ...interface{}) {
func printf(depth int, fields []kv.Field, s string, a ...interface{}) {
// Acquire buffer
buf := getBuf()
// Append formatted timestamp
now := time.Now().Format("02/01/2006 15:04:05.000")
buf.B = append(buf.B, `timestamp="`...)
buf.B = append(buf.B, now...)
buf.B = time.Now().AppendFormat(buf.B, timefmt)
buf.B = append(buf.B, `" `...)
// Append formatted caller func
buf.B = append(buf.B, `func=`...)
buf.B = append(buf.B, Caller(4)...)
buf.B = append(buf.B, Caller(depth+1)...)
buf.B = append(buf.B, ' ')
if len(fields) > 0 {
@ -169,15 +176,22 @@ func printf(fields []kv.Field, s string, a ...interface{}) {
// Append formatted args
fmt.Fprintf(buf, s, a...)
// Append a final newline
buf.B = append(buf.B, '\n')
if buf.B[len(buf.B)-1] != '\n' {
// Append a final newline
buf.B = append(buf.B, '\n')
}
if sysout != nil {
// Write log entry to syslog
logsys(level.INFO, buf.String())
}
// Write to log and release
_, _ = stdout.Write(buf.B)
putBuf(buf)
}
func logf(lvl level.LEVEL, fields []kv.Field, s string, a ...interface{}) {
func logf(depth int, lvl level.LEVEL, fields []kv.Field, s string, a ...interface{}) {
var out io.Writer
// Check if enabled.
@ -197,14 +211,13 @@ func logf(lvl level.LEVEL, fields []kv.Field, s string, a ...interface{}) {
buf := getBuf()
// Append formatted timestamp
now := time.Now().Format("02/01/2006 15:04:05.000")
buf.B = append(buf.B, `timestamp="`...)
buf.B = append(buf.B, now...)
buf.B = time.Now().AppendFormat(buf.B, timefmt)
buf.B = append(buf.B, `" `...)
// Append formatted caller func
buf.B = append(buf.B, `func=`...)
buf.B = append(buf.B, Caller(4)...)
buf.B = append(buf.B, Caller(depth+1)...)
buf.B = append(buf.B, ' ')
// Append formatted level string
@ -214,11 +227,13 @@ func logf(lvl level.LEVEL, fields []kv.Field, s string, a ...interface{}) {
// Append formatted fields with msg
kv.Fields(append(fields, kv.Field{
"msg", fmt.Sprintf(s, a...),
K: "msg", V: fmt.Sprintf(s, a...),
})).AppendFormat(buf, false)
// Append a final newline
buf.B = append(buf.B, '\n')
if buf.B[len(buf.B)-1] != '\n' {
// Append a final newline
buf.B = append(buf.B, '\n')
}
if sysout != nil {
// Write log entry to syslog
@ -231,23 +246,22 @@ func logf(lvl level.LEVEL, fields []kv.Field, s string, a ...interface{}) {
}
// logsys will log given msg at given severity to the syslog.
// Max length: https://www.rfc-editor.org/rfc/rfc5424.html#section-6.1
func logsys(lvl level.LEVEL, msg string) {
// Truncate message if > 1700 chars
if len(msg) > 1700 {
msg = msg[:1697] + "..."
if max := 2048; len(msg) > max {
// Truncate up to max
msg = msg[:max]
}
// Log at appropriate syslog severity
switch lvl {
case level.TRACE:
case level.DEBUG:
case level.TRACE, level.DEBUG:
_ = sysout.Debug(msg)
case level.INFO:
_ = sysout.Info(msg)
case level.WARN:
_ = sysout.Warning(msg)
case level.ERROR:
_ = sysout.Err(msg)
case level.FATAL:
case level.FATAL, level.PANIC:
_ = sysout.Crit(msg)
}
}

4
internal/log/syslog_test.go
View File

@ -79,7 +79,7 @@ func (suite *SyslogTestSuite) TestSyslogLongMessage() {
prefix := fmt.Sprintf(`timestamp="02/01/2006 15:04:05.000" func=%s level=WARN msg="`, funcName)
entry := <-suite.syslogChannel
regex := fmt.Sprintf(`timestamp=.* func=.* level=WARN msg="%s\.\.\.`, longMessage[:1700-len(prefix)-3])
regex := fmt.Sprintf(`timestamp=.* func=.* level=WARN msg="%s`, longMessage[:2048-len(prefix)])
suite.Regexp(regexp.MustCompile(regex), entry["content"])
}
@ -110,7 +110,7 @@ func (suite *SyslogTestSuite) TestSyslogLongMessageUnixgram() {
prefix := fmt.Sprintf(`timestamp="02/01/2006 15:04:05.000" func=%s level=WARN msg="`, funcName)
entry := <-syslogChannel
regex := fmt.Sprintf(`timestamp=.* func=.* level=WARN msg="%s\.\.\.`, longMessage[:1700-len(prefix)-3])
regex := fmt.Sprintf(`timestamp=.* func=.* level=WARN msg="%s`, longMessage[:2048-len(prefix)])
suite.Regexp(regexp.MustCompile(regex), entry["content"])