49 lines
2.2 KiB
Python
49 lines
2.2 KiB
Python
|
#!/usr/bin/env python
|
||
|
|
|
||
|
|
import os
|
||
|
|
import sys
|
||
|
|
import subprocess
|
||
|
|
|
||
|
|
#optimize png, remove various color profiles, remove ancillary chunks (alla) and text chunks (text)
|
||
|
|
#pngcrush -brute -ow -rem gAMA -rem cHRM -rem iCCP -rem sRGB -rem alla -rem text
|
||
|
|
|
||
|
|
folders = ["src/qt/res/movies", "src/qt/res/icons", "src/qt/res/images"]
|
||
|
|
basePath = subprocess.check_output("git rev-parse --show-toplevel", shell=True).rstrip('\n')
|
||
|
|
totalSaveBytes = 0
|
||
|
|
|
||
|
|
outputArray = []
|
||
|
|
for folder in folders:
|
||
|
|
absFolder=os.path.join(basePath, folder)
|
||
|
|
for file in os.listdir(absFolder):
|
||
|
|
extension = os.path.splitext(file)[1]
|
||
|
|
if extension.lower() == '.png':
|
||
|
|
print("optimizing "+file+"..."),
|
||
|
|
file_path = os.path.join(absFolder, file)
|
||
|
|
fileMetaMap = {'file' : file, 'osize': os.path.getsize(file_path), 'sha256Old' : subprocess.check_output("openssl dgst -sha256 "+file_path, shell=True).rstrip('\n')};
|
||
|
|
|
||
|
|
pngCrushOutput = ""
|
||
|
|
try:
|
||
|
|
pngCrushOutput = subprocess.check_output("pngcrush -brute -ow -rem gAMA -rem cHRM -rem iCCP -rem sRGB -rem alla -rem text "+file_path+" >/dev/null 2>&1", shell=True).rstrip('\n')
|
||
|
|
except:
|
||
|
|
print "pngcrush is not installed, aborting..."
|
||
|
|
sys.exit(0)
|
||
|
|
|
||
|
|
#verify
|
||
|
|
if "Not a PNG file" in subprocess.check_output("pngcrush -n -v "+file_path+" >/dev/null 2>&1", shell=True):
|
||
|
|
print "PNG file "+file+" is corrupted after crushing, check out pngcursh version"
|
||
|
|
sys.exit(1)
|
||
|
|
|
||
|
|
|
||
|
|
fileMetaMap['sha256New'] = subprocess.check_output("openssl dgst -sha256 "+file_path, shell=True).rstrip('\n')
|
||
|
|
fileMetaMap['psize'] = os.path.getsize(file_path)
|
||
|
|
outputArray.append(fileMetaMap)
|
||
|
|
print("done\n"),
|
||
|
|
|
||
|
|
print "summary:\n+++++++++++++++++"
|
||
|
|
for fileDict in outputArray:
|
||
|
|
oldHash = fileDict['sha256Old'].split("= ")[1]
|
||
|
|
newHash = fileDict['sha256New'].split("= ")[1]
|
||
|
|
totalSaveBytes += fileDict['osize'] - fileDict['psize']
|
||
|
|
print fileDict['file']+"\n size diff from: "+str(fileDict['osize'])+" to: "+str(fileDict['psize'])+"\n old sha256: "+oldHash+"\n new sha256: "+newHash+"\n"
|
||
|
|
|
||
|
|
print "completed. Total reduction: "+str(totalSaveBytes)+" bytes"
|