diff options
Diffstat (limited to 'contrib/devtools/optimize-pngs.py')
| -rwxr-xr-x | contrib/devtools/optimize-pngs.py | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/contrib/devtools/optimize-pngs.py b/contrib/devtools/optimize-pngs.py index 5cb3bb6f75..565b199125 100755 --- a/contrib/devtools/optimize-pngs.py +++ b/contrib/devtools/optimize-pngs.py @@ -1,4 +1,4 @@ -#!/usr/bin/env python +#!/usr/bin/env python3 # Copyright (c) 2014-2017 The Bitcoin Core developers # Distributed under the MIT software license, see the accompanying # file COPYING or http://www.opensource.org/licenses/mit-license.php. @@ -10,7 +10,7 @@ import os import sys import subprocess import hashlib -from PIL import Image +from PIL import Image # pip3 install Pillow def file_hash(filename): '''Return hash of raw file contents''' @@ -27,7 +27,7 @@ def content_hash(filename): pngcrush = 'pngcrush' git = 'git' folders = ["src/qt/res/movies", "src/qt/res/icons", "share/pixmaps"] -basePath = subprocess.check_output([git, 'rev-parse', '--show-toplevel']).rstrip('\n') +basePath = subprocess.check_output([git, 'rev-parse', '--show-toplevel'], universal_newlines=True).rstrip('\n') totalSaveBytes = 0 noHashChange = True @@ -37,42 +37,40 @@ for folder in folders: for file in os.listdir(absFolder): extension = os.path.splitext(file)[1] if extension.lower() == '.png': - print("optimizing "+file+"..."), + print("optimizing {}...".format(file), end =' ') file_path = os.path.join(absFolder, file) fileMetaMap = {'file' : file, 'osize': os.path.getsize(file_path), 'sha256Old' : file_hash(file_path)} fileMetaMap['contentHashPre'] = content_hash(file_path) - pngCrushOutput = "" try: - pngCrushOutput = subprocess.check_output( - [pngcrush, "-brute", "-ow", "-rem", "gAMA", "-rem", "cHRM", "-rem", "iCCP", "-rem", "sRGB", "-rem", "alla", "-rem", "text", file_path], - stderr=subprocess.STDOUT).rstrip('\n') + subprocess.call([pngcrush, "-brute", "-ow", "-rem", "gAMA", "-rem", "cHRM", "-rem", "iCCP", "-rem", "sRGB", "-rem", "alla", "-rem", "text", file_path], + stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL) except: - print "pngcrush is not installed, aborting..." + print("pngcrush is not installed, aborting...") sys.exit(0) #verify - if "Not a PNG file" in subprocess.check_output([pngcrush, "-n", "-v", file_path], stderr=subprocess.STDOUT): - print "PNG file "+file+" is corrupted after crushing, check out pngcursh version" + if "Not a PNG file" in subprocess.check_output([pngcrush, "-n", "-v", file_path], stderr=subprocess.STDOUT, universal_newlines=True): + print("PNG file "+file+" is corrupted after crushing, check out pngcursh version") sys.exit(1) fileMetaMap['sha256New'] = file_hash(file_path) fileMetaMap['contentHashPost'] = content_hash(file_path) if fileMetaMap['contentHashPre'] != fileMetaMap['contentHashPost']: - print "Image contents of PNG file "+file+" before and after crushing don't match" + print("Image contents of PNG file {} before and after crushing don't match".format(file)) sys.exit(1) fileMetaMap['psize'] = os.path.getsize(file_path) outputArray.append(fileMetaMap) - print("done\n"), + print("done") -print "summary:\n+++++++++++++++++" +print("summary:\n+++++++++++++++++") for fileDict in outputArray: oldHash = fileDict['sha256Old'] newHash = fileDict['sha256New'] totalSaveBytes += fileDict['osize'] - fileDict['psize'] noHashChange = noHashChange and (oldHash == newHash) - print fileDict['file']+"\n size diff from: "+str(fileDict['osize'])+" to: "+str(fileDict['psize'])+"\n old sha256: "+oldHash+"\n new sha256: "+newHash+"\n" + 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. Checksum stable: "+str(noHashChange)+". Total reduction: "+str(totalSaveBytes)+" bytes" +print("completed. Checksum stable: "+str(noHashChange)+". Total reduction: "+str(totalSaveBytes)+" bytes") |