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Merge pull request #494 from abperiasamy/md5sum-path-bug

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Version is now based on MD5SUM of its binary
This commit is contained in:
Harshavardhana 2015-04-26 15:42:48 -07:00
parent 9bc0f61191 0d97a98594
commit f7d2711d60
1 changed files with 13 additions and 7 deletions
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20
hash-binary.go
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@ -4,24 +4,30 @@ import (
"fmt"
"io"
"os"
"os/exec"
"crypto/md5"
)
// mustHashBinarySelf computes MD5SUM of a binary file on disk
// hashBinary computes MD5SUM of a binary file on disk
func hashBinary(progName string) (string, error) {
h := md5.New()
file, err := os.Open(progName) // For read access.
path, err := exec.LookPath(progName)
if err != nil {
return "", err
}
io.Copy(h, file)
return fmt.Sprintf("%x", h.Sum(nil)), nil
m := md5.New()
file, err := os.Open(path) // For read access.
if err != nil {
return "", err
}
io.Copy(m, file)
return fmt.Sprintf("%x", m.Sum(nil)), nil
}
// mustHashBinarySelf computes MD5SUM of its binary file on disk
// mustHashBinarySelf masks any error returned by hashBinary
func mustHashBinarySelf() string {
hash, _ := hashBinary(os.Args[0])
return hash