github.com/alibaba/sealer@v0.8.6-0.20220430115802-37a2bdaa8173/sealer/cmd/completion.go (about)

     1  // Copyright © 2021 Alibaba Group Holding Ltd.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package cmd
    16  
    17  import (
    18  	"os"
    19  
    20  	"github.com/spf13/cobra"
    21  
    22  	"github.com/alibaba/sealer/common"
    23  	"github.com/alibaba/sealer/logger"
    24  )
    25  
    26  // completionCmd represents the completion command
    27  var completionCmd = &cobra.Command{
    28  	Use:   "completion",
    29  	Short: "generate autocompletion script for bash",
    30  	Long: `Generate the autocompletion script for sealer for the bash shell.
    31  To load completions in your current shell session:
    32  
    33  	source <(sealer completion bash)
    34  
    35  To load completions for every new session, execute once:
    36  
    37  - Linux :
    38  	## If bash-completion is not installed on Linux, please install the 'bash-completion' package
    39  		sealer completion bash > /etc/bash_completion.d/sealer
    40  	`,
    41  	DisableFlagsInUseLine: true,
    42  	ValidArgs:             []string{"bash"},
    43  	Args:                  cobra.ExactValidArgs(1),
    44  	Run: func(cmd *cobra.Command, args []string) {
    45  		switch args[0] {
    46  		case "bash":
    47  			if err := cmd.Root().GenBashCompletion(common.StdOut); err != nil {
    48  				logger.Error("failed to use bash completion, %v", err)
    49  				os.Exit(1)
    50  			}
    51  		}
    52  	},
    53  }
    54  
    55  func init() {
    56  	rootCmd.AddCommand(completionCmd)
    57  }