You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
68 lines
1.4 KiB
68 lines
1.4 KiB
package main
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"log"
|
|
"os"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/codegangsta/cli"
|
|
"github.com/minio-io/minio/pkgs/erasure"
|
|
)
|
|
|
|
func encode(c *cli.Context) {
|
|
// check if minio-encode called without parameters
|
|
if len(c.Args()) != 1 {
|
|
cli.ShowCommandHelp(c, "encode")
|
|
return
|
|
}
|
|
|
|
// get input path
|
|
inputFilePath := c.Args().Get(0)
|
|
|
|
// get output path
|
|
outputFilePath := inputFilePath
|
|
if c.String("output") != "" {
|
|
outputFilePath = c.String("output")
|
|
}
|
|
|
|
protectionLevel := c.String("protection-level")
|
|
protectionLevelSplit := strings.Split(protectionLevel, ",")
|
|
if len(protectionLevelSplit) != 2 {
|
|
log.Fatal("Malformed input for protection-level")
|
|
}
|
|
|
|
k, err := strconv.Atoi(protectionLevelSplit[0])
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
m, err := strconv.Atoi(protectionLevelSplit[1])
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
// get file
|
|
inputFile, err := os.Open(inputFilePath)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
// read file
|
|
input, err := ioutil.ReadAll(inputFile)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
// set up encoder
|
|
erasureParameters, _ := erasure.ParseEncoderParams(k, m, erasure.CAUCHY)
|
|
// encode data
|
|
encodedData, length := erasure.Encode(input, erasureParameters)
|
|
|
|
// write encoded data out
|
|
for key, data := range encodedData {
|
|
ioutil.WriteFile(outputFilePath+"."+strconv.Itoa(key), data, 0600)
|
|
}
|
|
ioutil.WriteFile(outputFilePath+".length", []byte(strconv.Itoa(length)), 0600)
|
|
}
|
|
|