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      1 #!/usr/bin/env python
      2 #
      3 # Copyright (C) 2014 The Android Open Source Project
      4 #
      5 # Licensed under the Apache License, Version 2.0 (the 'License');
      6 # you may not use this file except in compliance with the License.
      7 # You may obtain a copy of the License at
      8 #
      9 #      http://www.apache.org/licenses/LICENSE-2.0
     10 #
     11 # Unless required by applicable law or agreed to in writing, software
     12 # distributed under the License is distributed on an 'AS IS' BASIS,
     13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14 # See the License for the specific language governing permissions and
     15 # limitations under the License.
     16 #
     17 import hashlib
     18 import os
     19 import subprocess
     20 import sys
     21 
     22 densities = [
     23     "ldpi",
     24     "mdpi",
     25     "tvdpi",
     26     "hdpi",
     27     "xhdpi",
     28     "400dpi",
     29     "xxhdpi",
     30     "xxxhdpi"
     31 ]
     32 
     33 # A script to find holo images which are duplicated in the landscape and
     34 # portrait folder. The landscape images will then be deleted as Android will
     35 # look up landscape resources in the portrait folder if it doesn't exist in the
     36 # landscape folder. This will reduce the size of the Holo test case.
     37 def main(argv):
     38   run(True)
     39   run(False)
     40 
     41 def run(sw):
     42   for density in densities:
     43     portDir = getDirName(density, sw, False)
     44     landDir = getDirName(density, sw, True)
     45     portrait = getAllHashes(portDir)
     46     landscape = getAllHashes(landDir)
     47     for f in portrait:
     48       if f in landscape and landscape[f] == portrait[f]:
     49         subprocess.call(["rm", landDir + "/" + f])
     50 
     51 def getAllHashes(dirName):
     52   files = {}
     53   for f in os.listdir(dirName):
     54     if f.endswith(".png"):
     55       files[f] = getHash(open(dirName + "/" + f, 'rb'))
     56   return files
     57 
     58 def getHash(f):
     59   return hashlib.sha1(f.read()).hexdigest()
     60 
     61 def getDirName(density, sw, land):
     62   name = "drawable-"
     63   if sw:
     64     name += "sw600dp-"
     65   if land:
     66     name += "land-"
     67   return name + density
     68 
     69 if __name__ == '__main__':
     70   main(sys.argv)
     71