Alpine Linux: List installed apk packages sorted by size

apk-large.py

#!/usr/bin/env python3
import subprocess

UNITS = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB']

def human_readable_size_to_bytes(size_str):
	size, unit = size_line.split()
	return int(size) * (1 << (UNITS.index(unit) * 10))

def chunks(lst, n):
	for i in range(0, len(lst), n):
		yield lst[i:i + n]

installed = dict(line.split(' - ', 1) for line in subprocess.check_output(['apk', 'info', '-vv'], text=True).splitlines())
lines = subprocess.check_output(['apk', 'info', '--size', '*'], text=True).splitlines()
package_sizes = {}

for name_line, size_line, _ in chunks(lines, 3):
	name = name_line.split(maxsplit=1)[0]

	if name not in installed or name in package_sizes:
		continue

	package_sizes[name] = human_readable_size_to_bytes(size_line)

total = 0

for name, size in sorted(package_sizes.items(), key=lambda item: item[1]):
	print(f'{size:,}', name, '-', installed[name])
	total += size

print(f'{total:,}', '(total)')