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package terraform
import (
"crypto/md5"
"encoding/hex"
)
// PathCacheKey returns a cache key for a module path.
//
// TODO: test
func PathCacheKey(path []string) string {
// There is probably a better way to do this, but this is working for now.
// We just create an MD5 hash of all the MD5 hashes of all the path
// elements. This gets us the property that it is unique per ordering.
hash := md5.New()
for _, p := range path {
single := md5.Sum([]byte(p))
if _, err := hash.Write(single[:]); err != nil {
panic(err)
}
}
return hex.EncodeToString(hash.Sum(nil))
}
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