You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
2.1 KiB
83 lines
2.1 KiB
package log
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"path/filepath"
|
|
"runtime"
|
|
"strings"
|
|
)
|
|
|
|
// V reports whether verbosity at the call site is at least the requested level.
|
|
// The returned value is a boolean of type Verbose, which implements Info, Infov etc.
|
|
// These methods will write to the Info log if called.
|
|
// Thus, one may write either
|
|
// if log.V(2) { log.Info("log this") }
|
|
// or
|
|
// log.V(2).Info("log this")
|
|
// The second form is shorter but the first is cheaper if logging is off because it does
|
|
// not evaluate its arguments.
|
|
//
|
|
// Whether an individual call to V generates a log record depends on the setting of
|
|
// the Config.VLevel and Config.Module flags; both are off by default. If the level in the call to
|
|
// V is at least the value of Config.VLevel, or of Config.Module for the source file containing the
|
|
// call, the V call will log.
|
|
// v must be more than 0.
|
|
func V(v int32) Verbose {
|
|
var (
|
|
file string
|
|
)
|
|
if v < 0 {
|
|
return Verbose(false)
|
|
} else if c.V >= v {
|
|
return Verbose(true)
|
|
}
|
|
if pc, _, _, ok := runtime.Caller(1); ok {
|
|
file, _ = runtime.FuncForPC(pc).FileLine(pc)
|
|
}
|
|
if strings.HasSuffix(file, ".go") {
|
|
file = file[:len(file)-3]
|
|
}
|
|
if slash := strings.LastIndex(file, "/"); slash >= 0 {
|
|
file = file[slash+1:]
|
|
}
|
|
for filter, lvl := range c.Module {
|
|
var match bool
|
|
if match = filter == file; !match {
|
|
match, _ = filepath.Match(filter, file)
|
|
}
|
|
if match {
|
|
return Verbose(lvl >= v)
|
|
}
|
|
}
|
|
return Verbose(false)
|
|
}
|
|
|
|
// Info logs a message at the info log level.
|
|
func (v Verbose) Info(format string, args ...interface{}) {
|
|
if v {
|
|
h.Log(context.Background(), _infoLevel, KVString(_log, fmt.Sprintf(format, args...)))
|
|
}
|
|
}
|
|
|
|
// Infov logs a message at the info log level.
|
|
func (v Verbose) Infov(ctx context.Context, args ...D) {
|
|
if v {
|
|
h.Log(ctx, _infoLevel, args...)
|
|
}
|
|
}
|
|
|
|
// Infow logs a message with some additional context. The variadic key-value pairs are treated as they are in With.
|
|
func (v Verbose) Infow(ctx context.Context, args ...interface{}) {
|
|
if v {
|
|
h.Log(ctx, _infoLevel, logw(args)...)
|
|
}
|
|
}
|
|
|
|
// Close close resource.
|
|
func (v Verbose) Close() (err error) {
|
|
if h == nil {
|
|
return
|
|
}
|
|
return h.Close()
|
|
}
|
|
|