github.com/ali-iotechsys/cli@v20.10.0+incompatible/cli/command/context/import.go (about)

     1  package context
     2  
     3  import (
     4  	"fmt"
     5  	"io"
     6  	"os"
     7  
     8  	"github.com/docker/cli/cli"
     9  	"github.com/docker/cli/cli/command"
    10  	"github.com/docker/cli/cli/context/store"
    11  	"github.com/spf13/cobra"
    12  )
    13  
    14  func newImportCommand(dockerCli command.Cli) *cobra.Command {
    15  	cmd := &cobra.Command{
    16  		Use:   "import CONTEXT FILE|-",
    17  		Short: "Import a context from a tar or zip file",
    18  		Args:  cli.ExactArgs(2),
    19  		RunE: func(cmd *cobra.Command, args []string) error {
    20  			return RunImport(dockerCli, args[0], args[1])
    21  		},
    22  	}
    23  	return cmd
    24  }
    25  
    26  // RunImport imports a Docker context
    27  func RunImport(dockerCli command.Cli, name string, source string) error {
    28  	if err := checkContextNameForCreation(dockerCli.ContextStore(), name); err != nil {
    29  		return err
    30  	}
    31  
    32  	var reader io.Reader
    33  	if source == "-" {
    34  		reader = dockerCli.In()
    35  	} else {
    36  		f, err := os.Open(source)
    37  		if err != nil {
    38  			return err
    39  		}
    40  		defer f.Close()
    41  		reader = f
    42  	}
    43  
    44  	if err := store.Import(name, dockerCli.ContextStore(), reader); err != nil {
    45  		return err
    46  	}
    47  
    48  	fmt.Fprintln(dockerCli.Out(), name)
    49  	fmt.Fprintf(dockerCli.Err(), "Successfully imported context %q\n", name)
    50  	return nil
    51  }