generate_ios_icons.py

#!/usr/bin/python
import argparse
import os

parser = argparse.ArgumentParser(description='Process input icon and output a set of icons with given sizes')

parser.add_argument('file', metavar = 'F', type=str, default="icon.png", help='file to look for')
parser.add_argument('--sizes', type=float, nargs='+', default=[20, 29, 40, 60, 76, 83.5], help='sizes for processing')

#pass me as parameter to parse_args if any :)
testArgs = ["urbi_icon_fluo.test.dot.png", "--sizes", "1", "2", "3"]

args = parser.parse_args()
print("OKI")
print("sizes: {sizes}".format(sizes = args.sizes))
print("file : {file}".format(file = args.file))

outFile = args.file.split(".")

fileName = ".".join(outFile[:-1])
fileExt = outFile[-1]

print "file: {0} ext: {1}".format(fileName, fileExt)

for size in args.sizes:
	for scale in [1,2,3]:

		formatArgs = {
			'size':size,
			'resize':size * scale,
			'scale':scale,
			'inputFile':args.file,
			'fileName':fileName,
			'fileExt':fileExt
		}

		cmd = "convert {inputFile} -resize {resize}x{resize} {fileName}{size}@{scale}x.{fileExt}".format(**formatArgs)
		print(cmd)
		os.system(cmd)

it's probably too straightforward, and later makes sense to copypaste some image.xcassets generation. might be nice together