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-rw-r--r--internal/log/entry.go51
-rw-r--r--internal/log/log.go92
-rw-r--r--internal/log/syslog_test.go6
3 files changed, 88 insertions, 61 deletions
diff --git a/internal/log/entry.go b/internal/log/entry.go
index 0d4e16e2b..d782be9f7 100644
--- a/internal/log/entry.go
+++ b/internal/log/entry.go
@@ -19,6 +19,7 @@
package log
import (
+ "context"
"fmt"
"syscall"
@@ -27,91 +28,97 @@ import (
)
type Entry struct {
- fields []kv.Field
+ ctx context.Context
+ kvs []kv.Field
+}
+
+func (e Entry) WithContext(ctx context.Context) Entry {
+ e.ctx = ctx
+ return e
}
func (e Entry) WithField(key string, value interface{}) Entry {
- e.fields = append(e.fields, kv.Field{K: key, V: value})
+ e.kvs = append(e.kvs, kv.Field{K: key, V: value})
return e
}
-func (e Entry) WithFields(fields ...kv.Field) Entry {
- e.fields = append(e.fields, fields...)
+func (e Entry) WithFields(kvs ...kv.Field) Entry {
+ e.kvs = append(e.kvs, kvs...)
return e
}
func (e Entry) Trace(a ...interface{}) {
- logf(3, level.TRACE, e.fields, args(len(a)), a...)
+ logf(e.ctx, 3, level.TRACE, e.kvs, args(len(a)), a...)
}
func (e Entry) Tracef(s string, a ...interface{}) {
- logf(3, level.TRACE, e.fields, s, a...)
+ logf(e.ctx, 3, level.TRACE, e.kvs, s, a...)
}
func (e Entry) Debug(a ...interface{}) {
- logf(3, level.DEBUG, e.fields, args(len(a)), a...)
+ logf(e.ctx, 3, level.DEBUG, e.kvs, args(len(a)), a...)
}
func (e Entry) Debugf(s string, a ...interface{}) {
- logf(3, level.DEBUG, e.fields, s, a...)
+ logf(e.ctx, 3, level.DEBUG, e.kvs, s, a...)
}
func (e Entry) Info(a ...interface{}) {
- logf(3, level.INFO, e.fields, args(len(a)), a...)
+ logf(e.ctx, 3, level.INFO, e.kvs, args(len(a)), a...)
}
func (e Entry) Infof(s string, a ...interface{}) {
- logf(3, level.INFO, e.fields, s, a...)
+ logf(e.ctx, 3, level.INFO, e.kvs, s, a...)
}
func (e Entry) Warn(a ...interface{}) {
- logf(3, level.WARN, e.fields, args(len(a)), a...)
+ logf(e.ctx, 3, level.WARN, e.kvs, args(len(a)), a...)
}
func (e Entry) Warnf(s string, a ...interface{}) {
- logf(3, level.WARN, e.fields, s, a...)
+ logf(e.ctx, 3, level.WARN, e.kvs, s, a...)
}
func (e Entry) Error(a ...interface{}) {
- logf(3, level.ERROR, e.fields, args(len(a)), a...)
+ logf(e.ctx, 3, level.ERROR, e.kvs, args(len(a)), a...)
}
func (e Entry) Errorf(s string, a ...interface{}) {
- logf(3, level.ERROR, e.fields, s, a...)
+ logf(e.ctx, 3, level.ERROR, e.kvs, s, a...)
}
func (e Entry) Fatal(a ...interface{}) {
defer syscall.Exit(1)
- logf(3, level.FATAL, e.fields, args(len(a)), a...)
+ logf(e.ctx, 3, level.FATAL, e.kvs, args(len(a)), a...)
}
func (e Entry) Fatalf(s string, a ...interface{}) {
defer syscall.Exit(1)
- logf(3, level.FATAL, e.fields, s, a...)
+ logf(e.ctx, 3, level.FATAL, e.kvs, s, a...)
}
func (e Entry) Panic(a ...interface{}) {
defer panic(fmt.Sprint(a...))
- logf(3, level.PANIC, e.fields, args(len(a)), a...)
+ logf(e.ctx, 3, level.PANIC, e.kvs, args(len(a)), a...)
}
func (e Entry) Panicf(s string, a ...interface{}) {
defer panic(fmt.Sprintf(s, a...))
- logf(3, level.PANIC, e.fields, s, a...)
+ logf(e.ctx, 3, level.PANIC, e.kvs, s, a...)
}
func (e Entry) Log(lvl level.LEVEL, a ...interface{}) {
- logf(3, lvl, e.fields, args(len(a)), a...)
+ logf(e.ctx, 3, lvl, e.kvs, args(len(a)), a...)
}
func (e Entry) Logf(lvl level.LEVEL, s string, a ...interface{}) {
- logf(3, lvl, e.fields, s, a...)
+ logf(e.ctx, 3, lvl, e.kvs, s, a...)
}
func (e Entry) Print(a ...interface{}) {
- printf(3, e.fields, args(len(a)), a...)
+ printf(3, e.kvs, args(len(a)), a...)
}
func (e Entry) Printf(s string, a ...interface{}) {
- printf(3, e.fields, s, a...)
+ printf(3, e.kvs, s, a...)
}
diff --git a/internal/log/log.go b/internal/log/log.go
index 78fb143b6..9240d1e79 100644
--- a/internal/log/log.go
+++ b/internal/log/log.go
@@ -19,6 +19,7 @@
package log
import (
+ "context"
"fmt"
"log/syslog"
"os"
@@ -38,13 +39,21 @@ var (
// lvlstrs is the lookup table of log levels to strings.
lvlstrs = level.Default()
- // Syslog output, only set if enabled.
+ // syslog output, only set if enabled.
sysout *syslog.Writer
// timefmt is the logging time format used.
timefmt = "02/01/2006 15:04:05.000"
+
+ // ctxhooks allows modifying log content based on context.
+ ctxhooks []func(context.Context, []kv.Field) []kv.Field
)
+// Hook adds the given hook to the global logger context hooks stack.
+func Hook(hook func(ctx context.Context, kvs []kv.Field) []kv.Field) {
+ ctxhooks = append(ctxhooks, hook)
+}
+
// Level returns the currently set log level.
func Level() level.LEVEL {
return level.LEVEL(loglvl.Load())
@@ -60,82 +69,86 @@ func New() Entry {
return Entry{}
}
+func WithContext(ctx context.Context) Entry {
+ return Entry{ctx: ctx}
+}
+
func WithField(key string, value interface{}) Entry {
- return Entry{fields: []kv.Field{{K: key, V: value}}}
+ return New().WithField(key, value)
}
func WithFields(fields ...kv.Field) Entry {
- return Entry{fields: fields}
+ return New().WithFields(fields...)
}
-func Trace(a ...interface{}) {
- logf(3, level.TRACE, nil, args(len(a)), a...)
+func Trace(ctx context.Context, a ...interface{}) {
+ logf(ctx, 3, level.TRACE, nil, args(len(a)), a...)
}
-func Tracef(s string, a ...interface{}) {
- logf(3, level.TRACE, nil, s, a...)
+func Tracef(ctx context.Context, s string, a ...interface{}) {
+ logf(ctx, 3, level.TRACE, nil, s, a...)
}
-func Debug(a ...interface{}) {
- logf(3, level.DEBUG, nil, args(len(a)), a...)
+func Debug(ctx context.Context, a ...interface{}) {
+ logf(ctx, 3, level.DEBUG, nil, args(len(a)), a...)
}
-func Debugf(s string, a ...interface{}) {
- logf(3, level.DEBUG, nil, s, a...)
+func Debugf(ctx context.Context, s string, a ...interface{}) {
+ logf(ctx, 3, level.DEBUG, nil, s, a...)
}
-func Info(a ...interface{}) {
- logf(3, level.INFO, nil, args(len(a)), a...)
+func Info(ctx context.Context, a ...interface{}) {
+ logf(ctx, 3, level.INFO, nil, args(len(a)), a...)
}
-func Infof(s string, a ...interface{}) {
- logf(3, level.INFO, nil, s, a...)
+func Infof(ctx context.Context, s string, a ...interface{}) {
+ logf(ctx, 3, level.INFO, nil, s, a...)
}
-func Warn(a ...interface{}) {
- logf(3, level.WARN, nil, args(len(a)), a...)
+func Warn(ctx context.Context, a ...interface{}) {
+ logf(ctx, 3, level.WARN, nil, args(len(a)), a...)
}
-func Warnf(s string, a ...interface{}) {
- logf(3, level.WARN, nil, s, a...)
+func Warnf(ctx context.Context, s string, a ...interface{}) {
+ logf(ctx, 3, level.WARN, nil, s, a...)
}
-func Error(a ...interface{}) {
- logf(3, level.ERROR, nil, args(len(a)), a...)
+func Error(ctx context.Context, a ...interface{}) {
+ logf(ctx, 3, level.ERROR, nil, args(len(a)), a...)
}
-func Errorf(s string, a ...interface{}) {
- logf(3, level.ERROR, nil, s, a...)
+func Errorf(ctx context.Context, s string, a ...interface{}) {
+ logf(ctx, 3, level.ERROR, nil, s, a...)
}
-func Fatal(a ...interface{}) {
+func Fatal(ctx context.Context, a ...interface{}) {
defer syscall.Exit(1)
- logf(3, level.FATAL, nil, args(len(a)), a...)
+ logf(ctx, 3, level.FATAL, nil, args(len(a)), a...)
}
-func Fatalf(s string, a ...interface{}) {
+func Fatalf(ctx context.Context, s string, a ...interface{}) {
defer syscall.Exit(1)
- logf(3, level.FATAL, nil, s, a...)
+ logf(ctx, 3, level.FATAL, nil, s, a...)
}
-func Panic(a ...interface{}) {
+func Panic(ctx context.Context, a ...interface{}) {
defer panic(fmt.Sprint(a...))
- logf(3, level.PANIC, nil, args(len(a)), a...)
+ logf(ctx, 3, level.PANIC, nil, args(len(a)), a...)
}
-func Panicf(s string, a ...interface{}) {
+func Panicf(ctx context.Context, s string, a ...interface{}) {
defer panic(fmt.Sprintf(s, a...))
- logf(3, level.PANIC, nil, s, a...)
+ logf(ctx, 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(3, lvl, nil, args(len(a)), a...)
+func Log(ctx context.Context, lvl level.LEVEL, a ...interface{}) {
+ logf(ctx, 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(3, lvl, nil, s, a...)
+func Logf(ctx context.Context, lvl level.LEVEL, s string, a ...interface{}) {
+ logf(ctx, 3, lvl, nil, s, a...)
}
// Print will log formatted args to the stdout log output.
@@ -186,7 +199,7 @@ func printf(depth int, fields []kv.Field, s string, a ...interface{}) {
putBuf(buf)
}
-func logf(depth int, lvl level.LEVEL, fields []kv.Field, s string, a ...interface{}) {
+func logf(ctx context.Context, depth int, lvl level.LEVEL, fields []kv.Field, s string, a ...interface{}) {
var out *os.File
// Check if enabled.
@@ -220,6 +233,13 @@ func logf(depth int, lvl level.LEVEL, fields []kv.Field, s string, a ...interfac
buf.B = append(buf.B, lvlstrs[lvl]...)
buf.B = append(buf.B, ' ')
+ if ctx != nil {
+ // Pass context through hooks.
+ for _, hook := range ctxhooks {
+ fields = hook(ctx, fields)
+ }
+ }
+
// Append formatted fields with msg
kv.Fields(append(fields, kv.Field{
K: "msg", V: fmt.Sprintf(s, a...),
diff --git a/internal/log/syslog_test.go b/internal/log/syslog_test.go
index baa4dac6c..0fb46923c 100644
--- a/internal/log/syslog_test.go
+++ b/internal/log/syslog_test.go
@@ -66,14 +66,14 @@ func (suite *SyslogTestSuite) TearDownTest() {
}
func (suite *SyslogTestSuite) TestSyslog() {
- log.Info("this is a test of the emergency broadcast system!")
+ log.Info(nil, "this is a test of the emergency broadcast system!")
entry := <-suite.syslogChannel
suite.Regexp(regexp.MustCompile(`timestamp=.* func=.* level=INFO msg="this is a test of the emergency broadcast system!"`), entry["content"])
}
func (suite *SyslogTestSuite) TestSyslogLongMessage() {
- log.Warn(longMessage)
+ log.Warn(nil, longMessage)
funcName := log.Caller(2)
prefix := fmt.Sprintf(`timestamp="02/01/2006 15:04:05.000" func=%s level=WARN msg="`, funcName)
@@ -104,7 +104,7 @@ func (suite *SyslogTestSuite) TestSyslogLongMessageUnixgram() {
testrig.InitTestLog()
- log.Warn(longMessage)
+ log.Warn(nil, longMessage)
funcName := log.Caller(2)
prefix := fmt.Sprintf(`timestamp="02/01/2006 15:04:05.000" func=%s level=WARN msg="`, funcName)