github.com/umeshredd/helm@v3.0.0-alpha.1+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  
    23  	"helm.sh/helm/pkg/chartutil"
    24  	"helm.sh/helm/pkg/registry"
    25  )
    26  
    27  // ChartExport performs a chart export operation.
    28  type ChartExport struct {
    29  	cfg *Configuration
    30  }
    31  
    32  // NewChartExport creates a new ChartExport object with the given configuration.
    33  func NewChartExport(cfg *Configuration) *ChartExport {
    34  	return &ChartExport{
    35  		cfg: cfg,
    36  	}
    37  }
    38  
    39  // Run executes the chart export operation
    40  func (a *ChartExport) Run(out io.Writer, ref string) error {
    41  	r, err := registry.ParseReference(ref)
    42  	if err != nil {
    43  		return err
    44  	}
    45  
    46  	ch, err := a.cfg.RegistryClient.LoadChart(r)
    47  	if err != nil {
    48  		return err
    49  	}
    50  
    51  	// Save the chart to local directory
    52  	// TODO: make destination dir configurable
    53  	err = chartutil.SaveDir(ch, ".")
    54  	if err != nil {
    55  		return err
    56  	}
    57  
    58  	fmt.Fprintf(out, "Exported to %s/\n", ch.Metadata.Name)
    59  	return nil
    60  }