Updating mozdownload (excluding tests)

mozdownload/utils.py

Index: mozdownload/utils.py
diff --git a/mozdownload/utils.py b/mozdownload/utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..ddd4491b647cf574969531d41348206747ef65f4
--- /dev/null
+++ b/mozdownload/utils.py
@@ -0,0 +1,32 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+"""Module to store various helper functions used in mozdownload."""
+
+import hashlib
+
+
+def urljoin(*fragments):
+    """Concatenates multi part strings into urls"""
+
+    # Strip possible already existent final slashes of fragments except for the last one
+    parts = [fragment.rstrip('/') for fragment in fragments[:len(fragments) - 1]]
+    parts.append(fragments[-1])
+
+    return '/'.join(parts)
+
+
+def create_md5(path):
+    """Creates the md5 hash of a file using the hashlib library"""
+
+    m = hashlib.md5()
+    # rb necessary to run correctly in windows.
+    with open(path, "rb") as f:
+        while True:
+            data = f.read(8192)
+            if not data:
+                break
+            m.update(data)
+
+    return m.hexdigest()