github.com/cloud-green/juju@v0.0.0-20151002100041-a00291338d3d/utils/logging.go (about) 1 // Copyright 2015 Canonical Ltd. 2 // Licensed under the AGPLv3, see LICENCE file for details. 3 4 package utils 5 6 import ( 7 "github.com/juju/errors" 8 "github.com/juju/loggo" 9 "github.com/juju/utils/featureflag" 10 11 "github.com/juju/juju/feature" 12 ) 13 14 var logger = loggo.GetLogger("juju.utils") 15 16 // LoggedErrorStack is a developer helper function that will cause the error 17 // stack of the error to be printed out at error severity if and only if the 18 // "log-error-stack" feature flag has been specified. The passed in error 19 // is also the return value of this function. 20 func LoggedErrorStack(err error) error { 21 if featureflag.Enabled(feature.LogErrorStack) { 22 logger.Errorf("error stack:\n%s", errors.ErrorStack(err)) 23 } 24 return err 25 }