github.com/Cloud-Foundations/Dominator@v0.3.4/cmd/unpacker-tool/getRaw.go (about)

     1  package main
     2  
     3  import (
     4  	"fmt"
     5  	"time"
     6  
     7  	uclient "github.com/Cloud-Foundations/Dominator/imageunpacker/client"
     8  	"github.com/Cloud-Foundations/Dominator/lib/format"
     9  	"github.com/Cloud-Foundations/Dominator/lib/fsutil"
    10  	"github.com/Cloud-Foundations/Dominator/lib/log"
    11  	"github.com/Cloud-Foundations/Dominator/lib/srpc"
    12  )
    13  
    14  func getRawSubcommand(args []string, logger log.DebugLogger) error {
    15  	if err := getRaw(getClient(), args[0], logger); err != nil {
    16  		return fmt.Errorf("error getting raw data: %s", err)
    17  	}
    18  	return nil
    19  }
    20  
    21  func getRaw(client *srpc.Client, streamName string,
    22  	logger log.DebugLogger) error {
    23  	if *filename == "" {
    24  		return fmt.Errorf("no image filename specified")
    25  	}
    26  	reader, length, err := uclient.GetRaw(client, streamName)
    27  	if err != nil {
    28  		return err
    29  	}
    30  	defer reader.Close()
    31  	startTime := time.Now()
    32  	err = fsutil.CopyToFile(*filename, fsutil.PrivateFilePerms, reader, length)
    33  	if err != nil {
    34  		return err
    35  	}
    36  	timeTaken := time.Since(startTime)
    37  	logger.Printf("downloaded %s in %s (%s/s)\n",
    38  		format.FormatBytes(length), format.Duration(timeTaken),
    39  		format.FormatBytes(uint64(float64(length)/timeTaken.Seconds())))
    40  	return nil
    41  }