27 lines
502 B
Go
27 lines
502 B
Go
package utils
|
|
|
|
import (
|
|
"crypto/sha1"
|
|
"encoding/hex"
|
|
"io"
|
|
"os"
|
|
"sort"
|
|
)
|
|
|
|
// HashComposefiles returns a hash of the compose files.
|
|
func HashComposefiles(files []string) (string, error) {
|
|
sort.Strings(files) // ensure the order is always the same
|
|
sha := sha1.New()
|
|
for _, file := range files {
|
|
f, err := os.Open(file)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
defer f.Close()
|
|
if _, err := io.Copy(sha, f); err != nil {
|
|
return "", err
|
|
}
|
|
}
|
|
return hex.EncodeToString(sha.Sum(nil)), nil
|
|
}
|