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call onConfigChange callback only if it is not nil, so i really become 

an optional parameter.
This commit is contained in:
Andrew Odintsov 2018-05-16 14:22:57 +03:00
parent 15738813a0
commit e919dff7ac
1 changed files with 3 additions and 1 deletions
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4
viper.go
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@ -289,7 +289,9 @@ func (v *Viper) WatchConfig() {
if err != nil { if err != nil {
log.Println("error:", err) log.Println("error:", err)
} }
v.onConfigChange(event) if v.onConfigChange != nil {
v.onConfigChange(event)
}
} }
} }
case err := <-watcher.Errors: case err := <-watcher.Errors: