github.com/grailbio/base@v0.0.11/grail/log.go (about)

     1  package grail
     2  
     3  import (
     4  	"github.com/grailbio/base/log"
     5  	"v.io/x/lib/vlog"
     6  )
     7  
     8  // VlogOutputter implements base/log.Outputter backed by vlog.
     9  type VlogOutputter struct{}
    10  
    11  func (VlogOutputter) Level() log.Level {
    12  	if vlog.V(1) {
    13  		return log.Debug
    14  	} else {
    15  		return log.Info
    16  	}
    17  }
    18  
    19  func (VlogOutputter) Output(calldepth int, level log.Level, s string) error {
    20  	// Notice that we do not add 1 to the call depth. In vlog, 0 depth means
    21  	// that the caller's file/line will be used. This is different from the log
    22  	// and github.com/grailbio/base/log packages, where that's the behavior you
    23  	// get with depth 1.
    24  	switch level {
    25  	case log.Off:
    26  	case log.Error:
    27  		vlog.ErrorDepth(calldepth, s)
    28  	case log.Info:
    29  		vlog.InfoDepth(calldepth, s)
    30  	default:
    31  		vlog.VI(vlog.Level(level)).InfoDepth(calldepth, s)
    32  	}
    33  	return nil
    34  }