github.com/containerd/nerdctl/v2@v2.0.0-beta.5.0.20240520001846-b5758f54fa28/pkg/cmd/namespace/common.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 namespace
    18  
    19  import "strings"
    20  
    21  func objectWithLabelArgs(args []string) map[string]string {
    22  	if len(args) >= 1 {
    23  		return labelArgs(args)
    24  	}
    25  	return nil
    26  }
    27  
    28  // labelArgs returns a map of label key,value pairs.
    29  // From https://github.com/containerd/containerd/blob/v1.7.0-rc.2/cmd/ctr/commands/commands.go#L229-L241
    30  func labelArgs(labelStrings []string) map[string]string {
    31  	labels := make(map[string]string, len(labelStrings))
    32  	for _, label := range labelStrings {
    33  		key, value, ok := strings.Cut(label, "=")
    34  		if !ok {
    35  			value = "true"
    36  		}
    37  		labels[key] = value
    38  	}
    39  
    40  	return labels
    41  }