github.com/containerd/nerdctl@v1.7.7/cmd/nerdctl/image_tag.go (about)

     1  /*
     2     Copyright The containerd Authors.
     3  
     4     Licensed under the Apache License, Version 2.0 (the "License");
     5     you may not use this file except in compliance with the License.
     6     You may obtain a copy of the License at
     7  
     8         http://www.apache.org/licenses/LICENSE-2.0
     9  
    10     Unless required by applicable law or agreed to in writing, software
    11     distributed under the License is distributed on an "AS IS" BASIS,
    12     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13     See the License for the specific language governing permissions and
    14     limitations under the License.
    15  */
    16  
    17  package main
    18  
    19  import (
    20  	"github.com/containerd/nerdctl/pkg/api/types"
    21  	"github.com/containerd/nerdctl/pkg/clientutil"
    22  	"github.com/containerd/nerdctl/pkg/cmd/image"
    23  
    24  	"github.com/spf13/cobra"
    25  )
    26  
    27  func newTagCommand() *cobra.Command {
    28  	var tagCommand = &cobra.Command{
    29  		Use:               "tag [flags] SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]",
    30  		Short:             "Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE",
    31  		Args:              IsExactArgs(2),
    32  		RunE:              tagAction,
    33  		ValidArgsFunction: tagShellComplete,
    34  		SilenceUsage:      true,
    35  		SilenceErrors:     true,
    36  	}
    37  	return tagCommand
    38  }
    39  
    40  func tagAction(cmd *cobra.Command, args []string) error {
    41  	globalOptions, err := processRootCmdFlags(cmd)
    42  	if err != nil {
    43  		return err
    44  	}
    45  
    46  	options := types.ImageTagOptions{
    47  		GOptions: globalOptions,
    48  		Source:   args[0],
    49  		Target:   args[1],
    50  	}
    51  
    52  	client, ctx, cancel, err := clientutil.NewClient(cmd.Context(), options.GOptions.Namespace, options.GOptions.Address)
    53  	if err != nil {
    54  		return err
    55  	}
    56  	defer cancel()
    57  
    58  	return image.Tag(ctx, client, options)
    59  }
    60  
    61  func tagShellComplete(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
    62  	if len(args) < 2 {
    63  		// show image names
    64  		return shellCompleteImageNames(cmd)
    65  	}
    66  	return nil, cobra.ShellCompDirectiveNoFileComp
    67  }