github.com/alibaba/sealer@v0.8.6-0.20220430115802-37a2bdaa8173/seautil/cmd/version.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  	"encoding/json"
    19  	"fmt" //nolint:imports
    20  	"os"
    21  
    22  	"github.com/spf13/cobra"
    23  
    24  	"github.com/alibaba/sealer/logger"
    25  	"github.com/alibaba/sealer/version"
    26  )
    27  
    28  var shortPrint bool
    29  
    30  var versionCmd = &cobra.Command{
    31  	Use:   "version",
    32  	Short: "version",
    33  	Long:  `sealer version`,
    34  	Run: func(cmd *cobra.Command, args []string) {
    35  		marshalled, err := json.Marshal(version.Get())
    36  		if err != nil {
    37  			logger.Error(err)
    38  			os.Exit(1)
    39  		}
    40  		if shortPrint {
    41  			fmt.Println(version.Get().String())
    42  		} else {
    43  			fmt.Println(string(marshalled))
    44  		}
    45  
    46  	},
    47  }
    48  
    49  func init() {
    50  	rootCmd.AddCommand(versionCmd)
    51  	versionCmd.Flags().BoolVar(&shortPrint, "short", false, "If true, print just the version number.")
    52  }