from __future__ import print_function import os import sys # Internal build script for generating debugging test .so size. # Usage: # python libsize.py file.so save.txt -- displays the size of file.so and, if save.txt exists, compares it to the # size in it, then overwrites save.txt with the new size for future runs. if len(sys.argv) != 3: sys.exit("Invalid arguments: usage: python libsize.py file.so save.txt") lib = sys.argv[1] save = sys.argv[2] if not os.path.exists(lib): sys.exit("Error: requested file ({}) does not exist".format(lib)) libsize = os.path.getsize(lib) print("------", os.path.basename(lib), "file size:", libsize, end='') if os.path.exists(save): with open(save) as sf: oldsize = int(sf.readline()) if oldsize > 0: change = libsize - oldsize if change == 0: print(" (no change)") else: print(" (change of {:+} bytes = {:+.2%})".format(change, change / oldsize)) else: print() with open(save, 'w') as sf: sf.write(str(libsize))