musala/cmd/trello2mail/config.go

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package main
import (
// "errors"
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"fmt"
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// "github.com/davecgh/go-spew/spew"
"github.com/spf13/cobra"
"github.com/spf13/viper"
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"os"
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"strings"
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)
const (
programBinary string = "trello2mail"
)
var (
ALLOWED_AUTH_TYPES = []string{"none", "plain", "login"}
ALLOWED_SECURITY_TYPES = []string{"none", "tls", "starttls"}
)
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type Config struct {
EmailFrom string `mapstructure:"email-from"`
EmailTo []string `mapstructure:"email-to"`
EmailSubject string `mapstructure:"email-subject"`
SmtpHostname string `mapstructure:"smtp-hostname"`
SmtpPort uint16 `mapstructure:"smtp-port"`
SmtpUsername string `mapstructure:"smtp-username"`
SmtpPassword string `mapstructure:"smtp-password"`
SmtpAuthType string `mapstructure:"smtp-auth-type"`
SmtpSecurityType string `mapstructure:"smtp-security-type"`
TrelloUrl string `mapstructure:"trello-url"`
TrelloToken string `mapstructure:"trello-token"`
Parser *cobra.Command `mapstructure:"-"`
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}
func NewConfig() *Config {
self := &Config{}
cmd := &cobra.Command{
Use: programBinary,
Run: func(cmd *cobra.Command, args []string) { /* placeholder */ },
}
viper.SetEnvKeyReplacer(strings.NewReplacer("-", "_"))
viper.AutomaticEnv()
cmd.PersistentFlags().StringVarP(&self.EmailFrom, "email-from", "", "", "address of sender")
cmd.PersistentFlags().StringArrayVarP(&self.EmailTo, "email-to", "", []string{}, "address(es) of recipient(s)")
cmd.PersistentFlags().StringVarP(&self.EmailSubject, "email-subject", "", "", "email subject")
cmd.PersistentFlags().StringVarP(&self.TrelloUrl, "trello-url", "", "", "url of trello board")
cmd.PersistentFlags().StringVarP(&self.TrelloToken, "trello-token", "", "", "url of trello token")
cmd.PersistentFlags().StringVarP(&self.SmtpHostname, "smtp-hostname", "", "", "address of smtp server")
cmd.PersistentFlags().StringVarP(&self.SmtpUsername, "smtp-username", "", "", "username for smtp server")
cmd.PersistentFlags().StringVarP(&self.SmtpPassword, "smtp-password", "", "", "password for smtp server")
cmd.PersistentFlags().Uint16VarP(&self.SmtpPort, "smtp-port", "", 25, "port for smtp server")
cmd.PersistentFlags().StringVarP(&self.SmtpAuthType, "smtp-auth-type", "", "", "authentication type for smtp server")
cmd.PersistentFlags().StringVarP(&self.SmtpSecurityType, "smtp-security-type", "", "", "security type for smtp server")
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viper.BindPFlag("email-from", cmd.PersistentFlags().Lookup("email-from"))
viper.BindPFlag("email-to", cmd.PersistentFlags().Lookup("email-to"))
viper.BindPFlag("email-subject", cmd.PersistentFlags().Lookup("email-subject"))
viper.BindPFlag("trello-url", cmd.PersistentFlags().Lookup("trello-url"))
viper.BindPFlag("trello-token", cmd.PersistentFlags().Lookup("trello-token"))
viper.BindPFlag("smtp-hostname", cmd.PersistentFlags().Lookup("smtp-hostname"))
viper.BindPFlag("smtp-username", cmd.PersistentFlags().Lookup("smtp-username"))
viper.BindPFlag("smtp-password", cmd.PersistentFlags().Lookup("smtp-password"))
viper.BindPFlag("smtp-port", cmd.PersistentFlags().Lookup("smtp-port"))
viper.BindPFlag("smtp-auth-type", cmd.PersistentFlags().Lookup("smtp-auth-type"))
viper.BindPFlag("smtp-security-type", cmd.PersistentFlags().Lookup("smtp-security-type"))
self.Parser = cmd
return self
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}
func (self *Config) Parse() error {
// set config defaults
// persistent flags
// environment & config
// viper.SetEnvPrefix("")
if err := self.Parser.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
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}
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showHelp, _ := self.Parser.Flags().GetBool("help")
if showHelp {
os.Exit(0)
}
if err := viper.Unmarshal(&self); err != nil {
panic("Unable to unmarshal config")
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}
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// spew.Dump(self)
return nil
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}