generated from mpppk/cli-template
/
config.go
99 lines (89 loc) · 2.06 KB
/
config.go
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// Package option provides utilities of option handling
package option
import (
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
// BaseFlag represents base command line flag
type BaseFlag struct {
IsPersistent bool
IsRequired bool
Shorthand string
Name string
Usage string
ViperName string
}
// Flag represents flag which has base flag
type Flag interface {
getBaseFlag() *BaseFlag
}
func (f *BaseFlag) getBaseFlag() *BaseFlag {
return f
}
func (f *BaseFlag) getViperName() string {
if f.ViperName == "" {
return f.Name
}
return f.ViperName
}
func getFlagSet(cmd *cobra.Command, flagConfig *BaseFlag) (flagSet *pflag.FlagSet) {
if flagConfig.IsPersistent {
return cmd.PersistentFlags()
} else {
return cmd.Flags()
}
}
func markAttributes(cmd *cobra.Command, flagConfig *StringFlag) error {
if err := markAsFileName(cmd, flagConfig); err != nil {
return err
}
if err := markAsDirName(cmd, flagConfig); err != nil {
return err
}
if err := markAsRequired(cmd, flagConfig.BaseFlag); err != nil {
return err
}
return nil
}
func markAsFileName(cmd *cobra.Command, stringFlag *StringFlag) error {
if stringFlag.IsFileName {
if stringFlag.IsPersistent {
if err := cmd.MarkPersistentFlagFilename(stringFlag.Name); err != nil {
return err
}
} else {
if err := cmd.MarkFlagFilename(stringFlag.Name); err != nil {
return err
}
}
}
return nil
}
func markAsDirName(cmd *cobra.Command, stringFlag *StringFlag) error {
if stringFlag.IsDirName {
if stringFlag.IsPersistent {
if err := cmd.MarkPersistentFlagDirname(stringFlag.Name); err != nil {
return err
}
} else {
if err := cmd.MarkFlagDirname(stringFlag.Name); err != nil {
return err
}
}
}
return nil
}
func markAsRequired(cmd *cobra.Command, flagConfig *BaseFlag) error {
if flagConfig.IsRequired {
if flagConfig.IsPersistent {
if err := cmd.MarkPersistentFlagRequired(flagConfig.Name); err != nil {
return err
}
} else {
if err := cmd.MarkFlagRequired(flagConfig.Name); err != nil {
return err
}
}
}
return nil
}