github.com/uhthomas/helm@v3.0.0-beta.3+incompatible/pkg/action/chart_export.go (about)

     1  /*
     2  Copyright The Helm 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 action
    18  
    19  import (
    20  	"fmt"
    21  	"io"
    22  	"path/filepath"
    23  
    24  	"helm.sh/helm/internal/experimental/registry"
    25  	"helm.sh/helm/pkg/chartutil"
    26  )
    27  
    28  // ChartExport performs a chart export operation.
    29  type ChartExport struct {
    30  	cfg *Configuration
    31  
    32  	Destination string
    33  }
    34  
    35  // NewChartExport creates a new ChartExport object with the given configuration.
    36  func NewChartExport(cfg *Configuration) *ChartExport {
    37  	return &ChartExport{
    38  		cfg: cfg,
    39  	}
    40  }
    41  
    42  // Run executes the chart export operation
    43  func (a *ChartExport) Run(out io.Writer, ref string) error {
    44  	r, err := registry.ParseReference(ref)
    45  	if err != nil {
    46  		return err
    47  	}
    48  
    49  	ch, err := a.cfg.RegistryClient.LoadChart(r)
    50  	if err != nil {
    51  		return err
    52  	}
    53  
    54  	// Save the chart to local destination directory
    55  	err = chartutil.SaveDir(ch, a.Destination)
    56  	if err != nil {
    57  		return err
    58  	}
    59  
    60  	d := filepath.Join(a.Destination, ch.Metadata.Name)
    61  	fmt.Fprintf(out, "Exported chart to %s/\n", d)
    62  	return nil
    63  }