def task_gen_logo(): """generate versions of the logo in various sizes""" from PIL import Image def resize_logo(width): with Image.open('assets/logotype.png') as im: im = im.convert('L') height = im.height * width // im.width new = im.resize((width,height), resample=Image.LANCZOS) new.save('static/logotype-{}.png'.format(width), optimize=True) widths = (200, 400, 600, 800) for width in widths: yield dict( name=str(width), actions=[(resize_logo, (width,))], targets=[f'static/logotype-{width}.png'], file_dep=['assets/logotype.png'], clean=True, ) def task_copy_asset(): import shutil assets = ('icon.png', 'logotype.png', 'settings.js') for asset in assets: yield dict( name=asset, actions=[(lambda asset: shutil.copy(f'assets/{asset}', f'static/{asset}'), (asset,))], targets=[f'static/{asset}'], file_dep=[f'assets/{asset}'], clean=True, ) def task_minify_css(): """minify css""" from csscompressor import compress def minify(): with open('assets/styles.css') as in_: with open('static/styles.css', 'w') as out: out.write(compress(in_.read())) return dict( actions=[minify], targets=['static/styles.css'], file_dep=['assets/styles.css'], clean=True, ) def task_compress_static(): import brotli import gzip files = ( 'static/styles.css', 'static/icon.png', 'static/logotype.png', 'static/version.js', 'static/settings.js', ) + tuple((f'static/logotype-{width}.png' for width in (200, 400, 600, 800))) def compress_brotli(dependencies): for filename in dependencies: with open(filename, 'rb') as in_: with open(filename + '.br', 'wb') as out: out.write(brotli.compress(in_.read())) def compress_gzip(dependencies): for filename in dependencies: with open(filename, 'rb') as in_: with gzip.open(filename + '.gz', 'wb') as out: out.write(in_.read()) for filename in files: yield dict( file_dep=(filename,), targets=(filename+'.br',), name=filename+'.br', actions=[compress_brotli], clean=True, ) yield dict( file_dep=(filename,), targets=(filename+'.gz',), name=filename+'.gz', actions=[compress_gzip], clean=True, ) if __name__ == '__main__': import doit doit.run(globals())