davinci: Add script to update sha1sums of kanged blobs

Change-Id: Id2e8cfb8d3b6f65f69c91a89bacd615fdcc45753

update-sha1sums.py

@@ -0,0 +1,79 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2016 The CyanogenMod Project
+# Copyright (C) 2017-2018 The LineageOS Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from hashlib import sha1
+import sys
+
+device='davinci'
+vendor='xiaomi'
+
+lines = [ line for line in open('proprietary-files.txt', 'r') ]
+vendorPath = '../../../vendor/' + vendor + '/' + device + '/proprietary'
+needSHA1 = False
+
+def cleanup():
+  for index, line in enumerate(lines):
+    # Remove '\n' character
+    line = line[:-1]
+
+    # Skip empty or commented lines
+    if len(line) == 0 or line[0] == '#':
+      continue
+
+    # Drop SHA1 hash, if existing
+    if '|' in line:
+      line = line.split('|')[0]
+      lines[index] = '%s\n' % (line)
+
+def update():
+  for index, line in enumerate(lines):
+    # Remove '\n' character
+    line = line[:-1]
+
+    # Skip empty lines
+    if len(line) == 0:
+      continue
+
+    # Check if we need to set SHA1 hash for the next files
+    if line[0] == '#':
+      needSHA1 = (' - from' in line)
+      continue
+
+    if needSHA1:
+      # Remove existing SHA1 hash
+      line = line.split('|')[0]
+      filePath = line.split(':')[1] if len(line.split(':')) == 2 else line
+
+      if filePath[0] == '-':
+        file = open('%s/%s' % (vendorPath, filePath[1:]), 'rb').read()
+      else:
+        file = open('%s/%s' % (vendorPath, filePath), 'rb').read()
+
+      hash = sha1(file).hexdigest()
+      lines[index] = '%s|%s\n' % (line, hash)
+
+if len(sys.argv) == 2 and sys.argv[1] == '-c':
+  cleanup()
+else:
+  update()
+
+with open('proprietary-files.txt', 'w') as file:
+  for line in lines:
+    file.write(line)
+
+  file.close()