d3ce0964b2
* Update Dash app and toolbar icons * Update icons and images * Remove menubar icons * Add Dash logo to top-right of menubar * Remove the small PrivateSend buttons * Remove image entirely from About modal * Update CSS for new theme changes * Restore splash testnet image * Make entire toolbar button clickable * Fix address book and shrink transaction icons * Revert "Restore splash testnet image" This reverts commit 2df07ff7d30664e0f18ad2dfbeb85ec602ef6245. * Restore original direction for tx in/out arrows * Add transparency to icons * Remove unused icons * Resize way too small icons * `mogrify src/qt/res/*/*.png` * Drop `light` from `optimize-pngs.py` * `python3 contrib/devtools/optimize-pngs.py` "Total reduction: 42507 bytes" * Restore old remove icon as console_remove
82 lines
3.4 KiB
Python
Executable File
82 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/movies",
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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).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):
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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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