示例#1
0
文件: fetch.go 项目: kubernetes/helm
func (f *fetchCmd) run() error {
	pname := f.chartRef
	c := downloader.ChartDownloader{
		HelmHome: helmpath.Home(homePath()),
		Out:      f.out,
		Keyring:  f.keyring,
		Verify:   downloader.VerifyNever,
	}

	if f.verify {
		c.Verify = downloader.VerifyAlways
	} else if f.verifyLater {
		c.Verify = downloader.VerifyLater
	}

	// If untar is set, we fetch to a tempdir, then untar and copy after
	// verification.
	dest := f.destdir
	if f.untar {
		var err error
		dest, err = ioutil.TempDir("", "helm-")
		if err != nil {
			return fmt.Errorf("Failed to untar: %s", err)
		}
		defer os.RemoveAll(dest)
	}

	saved, v, err := c.DownloadTo(pname, f.version, dest)
	if err != nil {
		return err
	}

	if f.verify {
		fmt.Fprintf(f.out, "Verification: %v\n", v)
	}

	// After verification, untar the chart into the requested directory.
	if f.untar {
		ud := f.untardir
		if !filepath.IsAbs(ud) {
			ud = filepath.Join(f.destdir, ud)
		}
		if fi, err := os.Stat(ud); err != nil {
			if err := os.MkdirAll(ud, 0755); err != nil {
				return fmt.Errorf("Failed to untar (mkdir): %s", err)
			}

		} else if !fi.IsDir() {
			return fmt.Errorf("Failed to untar: %s is not a directory", ud)
		}

		return chartutil.ExpandFile(ud, saved)
	}
	return nil
}
示例#2
0
// locateChartPath looks for a chart directory in known places, and returns either the full path or an error.
//
// This does not ensure that the chart is well-formed; only that the requested filename exists.
//
// Order of resolution:
// - current working directory
// - if path is absolute or begins with '.', error out here
// - chart repos in $HELM_HOME
// - URL
//
// If 'verify' is true, this will attempt to also verify the chart.
func locateChartPath(name, version string, verify bool, keyring string) (string, error) {
	name = strings.TrimSpace(name)
	version = strings.TrimSpace(version)
	if fi, err := os.Stat(name); err == nil {
		abs, err := filepath.Abs(name)
		if err != nil {
			return abs, err
		}
		if verify {
			if fi.IsDir() {
				return "", errors.New("cannot verify a directory")
			}
			if _, err := downloader.VerifyChart(abs, keyring); err != nil {
				return "", err
			}
		}
		return abs, nil
	}
	if filepath.IsAbs(name) || strings.HasPrefix(name, ".") {
		return name, fmt.Errorf("path %q not found", name)
	}

	crepo := filepath.Join(helmpath.Home(homePath()).Repository(), name)
	if _, err := os.Stat(crepo); err == nil {
		return filepath.Abs(crepo)
	}

	dl := downloader.ChartDownloader{
		HelmHome: helmpath.Home(homePath()),
		Out:      os.Stdout,
		Keyring:  keyring,
	}
	if verify {
		dl.Verify = downloader.VerifyAlways
	}

	filename, _, err := dl.DownloadTo(name, version, ".")
	if err == nil {
		lname, err := filepath.Abs(filename)
		if err != nil {
			return filename, err
		}
		if flagDebug {
			fmt.Printf("Fetched %s to %s\n", name, filename)
		}
		return lname, nil
	} else if flagDebug {
		return filename, err
	}

	return filename, fmt.Errorf("file %q not found", name)
}
示例#3
0
文件: install.go 项目: runseb/helm
// locateChartPath looks for a chart directory in known places, and returns either the full path or an error.
//
// This does not ensure that the chart is well-formed; only that the requested filename exists.
//
// Order of resolution:
// - current working directory
// - if path is absolute or begins with '.', error out here
// - chart repos in $HELM_HOME
//
// If 'verify' is true, this will attempt to also verify the chart.
func locateChartPath(name string, verify bool, keyring string) (string, error) {
	if fi, err := os.Stat(name); err == nil {
		abs, err := filepath.Abs(name)
		if err != nil {
			return abs, err
		}
		if verify {
			if fi.IsDir() {
				return "", errors.New("cannot verify a directory")
			}
			if _, err := downloader.VerifyChart(abs, keyring); err != nil {
				return "", err
			}
		}
		return abs, nil
	}
	if filepath.IsAbs(name) || strings.HasPrefix(name, ".") {
		return name, fmt.Errorf("path %q not found", name)
	}

	crepo := filepath.Join(repositoryDirectory(), name)
	if _, err := os.Stat(crepo); err == nil {
		return filepath.Abs(crepo)
	}

	// Try fetching the chart from a remote repo into a tmpdir
	origname := name
	if filepath.Ext(name) != ".tgz" {
		name += ".tgz"
	}

	dl := downloader.ChartDownloader{
		HelmHome: helmpath.Home(homePath()),
		Out:      os.Stdout,
		Keyring:  keyring,
	}
	if verify {
		dl.Verify = downloader.VerifyAlways
	}

	if _, err := dl.DownloadTo(name, "."); err == nil {
		lname, err := filepath.Abs(filepath.Base(name))
		if err != nil {
			return lname, err
		}
		fmt.Printf("Fetched %s to %s\n", origname, lname)
		return lname, nil
	}

	return name, fmt.Errorf("file %q not found", origname)
}