1 files changed, 64 insertions, 0 deletions
diff --git a/bin/update/tools.py b/bin/update/tools.py
new file mode 100644
index 000000000..8cd786635
--- /dev/null
+++ b/bin/update/tools.py
@@ -0,0 +1,64 @@
+import os
+import hashlib
+import zipfile
+import tarfile
+
+def uncompress_file_to_dir(compressed_file, uncompress_dir):
+    command = None
+    extension = os.path.splitext(compressed_file)[1]
+
+    try:
+        os.mkdir(uncompress_dir)
+    except FileExistsError as e:
+        pass
+
+    if extension == '.gz':
+        tar = tarfile.open(compressed_file)
+        tar.extractall(uncompress_dir)
+        tar.close()
+    elif extension == '.zip':
+        zip_file = zipfile.ZipFile(compressed_file)
+        zip_file.extractall(uncompress_dir)
+        zip_file.close()
+
+        uncompress_dir = os.path.join(uncompress_dir, os.listdir(uncompress_dir)[0])
+        if " " in os.listdir(uncompress_dir)[0]:
+            print("replacing whitespace in directory name")
+            os.rename(os.path.join(uncompress_dir, os.listdir(uncompress_dir)[0]),
+                            os.path.join(uncompress_dir, os.listdir(uncompress_dir)[0].replace(" ", "_")))
+    else:
+        print("Error: unknown extension " + extension)
+
+    return os.path.join(uncompress_dir, os.listdir(uncompress_dir)[0])
+
+BUF_SIZE = 1048576
+
+def get_hash(file_path):
+    sha512 = hashlib.sha512()
+    with open(file_path, 'rb') as f:
+        while True:
+            data = f.read(BUF_SIZE)
+            if not data:
+                break
+            sha512.update(data)
+        return sha512.hexdigest()
+
+def get_file_info(mar_file, url):
+    filesize = os.path.getsize(mar_file)
+    data = { 'hash' : get_hash(mar_file),
+            'hashFunction' : 'sha512',
+            'size' : filesize,
+            'url' : url + os.path.basename(mar_file)}
+
+    return data
+
+def replace_variables_in_string(string, **kwargs):
+    new_string = string
+    for key, val in kwargs.items():
+        new_string = new_string.replace('$(%s)'%key, val)
+
+    return new_string
+
+def make_complete_mar_name(target_dir, filename_prefix):
+    filename = filename_prefix + "_complete.mar"
+    return os.path.join(target_dir, filename)