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from __future__ import annotations
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(f"Error: requested file ({lib}) does not exist")
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(f" (change of {change:+} bytes = {change / oldsize:+.2%})")
else:
print()
with open(save, "w") as sf:
sf.write(str(libsize))
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