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4b8dc1e435
80968cf scripted-diff: rename movie folder to animation (Peter Bushnell)
Pull request description:
Rename the movies directory and RES_MOVIES make variable to animation and RES_ANIMATION respectively. Movies is a bit of an unexpected term to be found.
ACKs for top commit:
MarcoFalke:
ACK 80968cf
hebasto:
ACK 80968cf, tested on Linux Mint 20 (Qt 5.12.8).
Tree-SHA512: 6bd31ce36e821f6a1bef8a7972086a2387d6258c48fc9df12d3ffdae07d0237036afbc2dec673384b78d9567b91d6e12eafa59fa2305aa79153dfd9b7c3a8655
81 lines
3.4 KiB
Python
Executable File
81 lines
3.4 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2014-2015 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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'''
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Run this script every time you change one of the png files. Using pngcrush, it will optimize the png files, remove various color profiles, remove ancillary chunks (alla) and text chunks (text).
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#pngcrush -brute -ow -rem gAMA -rem cHRM -rem iCCP -rem sRGB -rem alla -rem text
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'''
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import os
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import sys
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import subprocess
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import hashlib
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from PIL import Image # pip3 install Pillow
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def file_hash(filename):
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'''Return hash of raw file contents'''
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with open(filename, 'rb') as f:
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return hashlib.sha256(f.read()).hexdigest()
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def content_hash(filename):
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'''Return hash of RGBA contents of image'''
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i = Image.open(filename)
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i = i.convert('RGBA')
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data = i.tobytes()
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return hashlib.sha256(data).hexdigest()
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pngcrush = 'pngcrush'
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git = 'git'
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folders = [
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"src/qt/res/animation",
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"src/qt/res/icons",
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"src/qt/res/images",
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"share/pixmaps"
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]
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basePath = subprocess.check_output([git, 'rev-parse', '--show-toplevel'], universal_newlines=True, encoding='utf8').rstrip('\n')
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totalSaveBytes = 0
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noHashChange = True
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outputArray = []
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for folder in folders:
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absFolder=os.path.join(basePath, folder)
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for file in os.listdir(absFolder):
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extension = os.path.splitext(file)[1]
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if extension.lower() == '.png':
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print("optimizing {}...".format(file), end =' ')
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file_path = os.path.join(absFolder, file)
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fileMetaMap = {'file' : file, 'osize': os.path.getsize(file_path), 'sha256Old' : file_hash(file_path)}
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fileMetaMap['contentHashPre'] = content_hash(file_path)
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try:
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subprocess.call([pngcrush, "-brute", "-ow", "-rem", "gAMA", "-rem", "cHRM", "-rem", "iCCP", "-rem", "sRGB", "-rem", "alla", "-rem", "text", file_path],
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stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
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except:
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print("pngcrush is not installed, aborting...")
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sys.exit(0)
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#verify
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if "Not a PNG file" in subprocess.check_output([pngcrush, "-n", "-v", file_path], stderr=subprocess.STDOUT, universal_newlines=True, encoding='utf8'):
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print("PNG file "+file+" is corrupted after crushing, check out pngcursh version")
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sys.exit(1)
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fileMetaMap['sha256New'] = file_hash(file_path)
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fileMetaMap['contentHashPost'] = content_hash(file_path)
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if fileMetaMap['contentHashPre'] != fileMetaMap['contentHashPost']:
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print("Image contents of PNG file {} before and after crushing don't match".format(file))
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sys.exit(1)
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fileMetaMap['psize'] = os.path.getsize(file_path)
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outputArray.append(fileMetaMap)
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print("done")
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print("summary:\n+++++++++++++++++")
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for fileDict in outputArray:
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oldHash = fileDict['sha256Old']
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newHash = fileDict['sha256New']
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totalSaveBytes += fileDict['osize'] - fileDict['psize']
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noHashChange = noHashChange and (oldHash == newHash)
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print(fileDict['file']+"\n size diff from: "+str(fileDict['osize'])+" to: "+str(fileDict['psize'])+"\n old sha256: "+oldHash+"\n new sha256: "+newHash+"\n")
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print("completed. Checksum stable: "+str(noHashChange)+". Total reduction: "+str(totalSaveBytes)+" bytes")
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