Revert of DevTools: clean up scripts folder

third_party/WebKit/Source/devtools/scripts/devtools_file_hashes.py

+#!/usr/bin/env python
+# Copyright (c) 2014 Google Inc. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import hashlib
+import os.path
+
+try:
+    import json
+except ImportError:
+    import simplejson as json
+
+
+def save_hashes(hashes_file_path, hashes):
+    try:
+        with open(hashes_file_path, "wt") as hashes_file:
+            json.dump(hashes, hashes_file, indent=4, separators=(",", ": "))
+    except:
+        print "ERROR: Failed to write %s" % hashes_file_path
+        raise
+
+
+def load_hashes(hashes_file_path):
+    try:
+        with open(hashes_file_path, "r") as hashes_file:
+            hashes = json.load(hashes_file)
+    except:
+        return {}
+    return hashes
+
+
+def calculate_file_hash(file_path):
+    with open(file_path) as file:
+        data = file.read()
+        md5_hash = hashlib.md5(data).hexdigest()
+    return md5_hash
+
+
+def files_with_invalid_hashes(hash_file_path, file_paths):
+    hashes = load_hashes(hash_file_path)
+    result = []
+    for file_path in file_paths:
+        file_name = os.path.basename(file_path)
+        if calculate_file_hash(file_path) != hashes.get(file_name, ""):
+            result.append(file_path)
+    return result
+
+
+def update_file_hashes(hash_file_path, file_paths):
+    hashes = {}
+    for file_path in file_paths:
+        file_name = os.path.basename(file_path)
+        hashes[file_name] = calculate_file_hash(file_path)
+    save_hashes(hash_file_path, hashes)