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util.go
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util.go
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package cmd
import (
"os"
"path"
"strings"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"gopkg.in/yaml.v2"
)
// initConfig reads config files
func initConfig() {
var finkConfigPath = os.Getenv("FINKCONFIG")
if len(finkConfigPath) == 0 {
// Find home directory.
home, err := os.UserHomeDir()
cobra.CheckErr(err)
cwd, err1 := os.Getwd()
cobra.CheckErr(err1)
viper.AddConfigPath(cwd)
finkConfigPath = path.Join(home, ".finkctl")
}
viper.AddConfigPath(finkConfigPath)
viper.SetConfigType("yaml")
viper.SetConfigName("finkctl.yaml")
// If a config file is found, read it in.
if err := viper.ReadInConfig(); err == nil {
logger.Debugf("Use config file: %s", viper.ConfigFileUsed())
} else {
logger.Fatalf("Fail reading configuration files in $FINKCONFIG, $HOME/.fink, then $CWD: ", err, viper.ConfigFileUsed())
}
viper.SetConfigName("finkctl.secret.yaml")
if err := viper.MergeInConfig(); err == nil {
logger.Debugf("Use secret file: %s", viper.ConfigFileUsed())
} else {
logger.Fatalf("Fail reading secret files in $FINKCONFIG, $HOME/.fink, then $CWD: ", err, viper.ConfigFileUsed())
}
}
func logConfiguration() {
c := viper.AllSettings()
bs, err := yaml.Marshal(c)
if err != nil {
logger.Fatalf("unable to marshal finkctl configuration to YAML: %v", err)
}
logger.Infof("Current finkctl configuration:\n%s", bs)
}
// getKafkaTopics returns the list of Kafka topics produced by fink-broker
func getFinkTopics() ([]string, error) {
finkTopics := []string{}
topics, err := getKafkaTopics()
if err != nil {
return nil, err
}
for _, t := range topics {
if strings.HasPrefix(t, finkPrefix) {
finkTopics = append(finkTopics, t)
}
}
return finkTopics, nil
}