1 files changed, 24 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/terraform/terraform/path.go b/vendor/github.com/hashicorp/terraform/terraform/path.go
new file mode 100644
index 0000000..ca99685
--- /dev/null
+++ b/vendor/github.com/hashicorp/terraform/terraform/path.go
@@ -0,0 +1,24 @@
+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))
+}