github.com/GoogleContainerTools/skaffold@v1.39.18/pkg/skaffold/build/buildpacks/pulled_images.go (about)

     1  /*
     2  Copyright 2020 The Skaffold 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 buildpacks
    18  
    19  import "sync"
    20  
    21  type pulledImages struct {
    22  	images map[imageTuple]bool
    23  	lock   sync.Mutex
    24  }
    25  
    26  type imageTuple struct {
    27  	builder string
    28  	runner  string
    29  }
    30  
    31  func (p *pulledImages) AreAlreadyPulled(builder, runImage string) bool {
    32  	p.lock.Lock()
    33  	defer p.lock.Unlock()
    34  
    35  	return p.images[tuple(builder, runImage)]
    36  }
    37  
    38  func (p *pulledImages) MarkAsPulled(builder, runImage string) {
    39  	p.lock.Lock()
    40  	defer p.lock.Unlock()
    41  
    42  	if p.images == nil {
    43  		p.images = map[imageTuple]bool{}
    44  	}
    45  
    46  	p.images[tuple(builder, runImage)] = true
    47  }
    48  
    49  func tuple(builder, runImage string) imageTuple {
    50  	return imageTuple{
    51  		builder: builder,
    52  		runner:  runImage,
    53  	}
    54  }