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config.go
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config.go
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/*
* Copyright The Dragonfly Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"fmt"
"github.com/dragonflyoss/Dragonfly/pkg/printer"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"gopkg.in/yaml.v2"
)
// NewConfigCommand returns cobra.Command for "<component> config" command
func NewConfigCommand(componentName string, defaultComponentConfigFunc func() (interface{}, error)) *cobra.Command {
cmd := &cobra.Command{
Use: "config",
Short: fmt.Sprintf("Manage the configurations of %s", componentName),
Args: cobra.NoArgs,
}
cmd.AddCommand(newConfigPrintDefaultCommand(componentName, defaultComponentConfigFunc))
return cmd
}
// newConfigPrintDefaultCommand returns cobra.Command for "<component> config default" command
func newConfigPrintDefaultCommand(componentName string, defaultComponentConfigFunc func() (interface{}, error)) *cobra.Command {
cmd := &cobra.Command{
Use: "default",
Short: fmt.Sprintf("Print the default configurations of %s in yaml format", componentName),
Args: cobra.NoArgs,
SilenceErrors: true,
SilenceUsage: true,
RunE: func(cmd *cobra.Command, args []string) error {
return runConfigPrintDefault(defaultComponentConfigFunc)
},
}
return cmd
}
func runConfigPrintDefault(defaultComponentConfigFunc func() (interface{}, error)) error {
cfg, err := defaultComponentConfigFunc()
if err != nil {
return errors.Wrap(err, "failed to get component default configurations")
}
d, err := yaml.Marshal(cfg)
if err != nil {
return errors.Wrap(err, "failed to marshal component default configurations")
}
printer.Print(string(d))
return nil
}