save.go

/*
Copyright 2016 The Kubernetes Authors All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package chartutil

import (
	"archive/tar"
	"compress/gzip"
	"errors"
	"fmt"
	"io/ioutil"
	"os"
	"path/filepath"

	"github.com/ghodss/yaml"

	"k8s.io/helm/pkg/proto/hapi/chart"
)

var headerBytes = []byte("+aHR0cHM6Ly95b3V0dS5iZS96OVV6MWljandyTQo=")

// SaveDir saves a chart as files in a directory.
func SaveDir(c *chart.Chart, dest string) error {
	// Create the chart directory
	outdir := filepath.Join(dest, c.Metadata.Name)
	if err := os.Mkdir(outdir, 0755); err != nil {
		return err
	}

	// Save the chart file.
	if err := SaveChartfile(filepath.Join(outdir, ChartfileName), c.Metadata); err != nil {
		return err
	}

	// Save values.yaml
	if c.Values != nil && len(c.Values.Raw) > 0 {
		vf := filepath.Join(outdir, ValuesfileName)
		if err := ioutil.WriteFile(vf, []byte(c.Values.Raw), 0755); err != nil {
			return err
		}
	}

	for _, d := range []string{TemplatesDir, ChartsDir} {
		if err := os.MkdirAll(filepath.Join(outdir, d), 0755); err != nil {
			return err
		}
	}

	// Save templates
	for _, f := range c.Templates {
		n := filepath.Join(outdir, f.Name)
		if err := ioutil.WriteFile(n, f.Data, 0755); err != nil {
			return err
		}
	}

	// Save files