msm8937-common: Add unpinning support to update-sha1sums.py script

Change-Id: I9035b449cea6d78927a459dc247075b3d4512e46

update-sha1sums.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 #
 # Copyright (C) 2016 The CyanogenMod Project
-# Copyright (C) 2017 The LineageOS 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.
@@ -17,6 +17,7 @@
 #
 
 from hashlib import sha1
+import sys
 
 device='msm8937-common'
 vendor='xiaomi'
@@ -25,6 +26,21 @@ lines = [ line for line in open('proprietary-files-qc.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]
@@ -51,6 +67,11 @@ for index, line in enumerate(lines):
       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-qc.txt', 'w') as file:
   for line in lines:
     file.write(line)