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55 lines
1.3 KiB
Plaintext
55 lines
1.3 KiB
Plaintext
1 year ago
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#!/usr/bin/python3
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import os
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import subprocess
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import sys
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import re
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import click
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def du(paths):
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# Just using coreutils du, to have deduping, and the correct size
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result = subprocess.check_output(["du", "-sc", "--block-size=1", *paths])
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total_line = result.splitlines()[-1]
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total_bytes, total_check = total_line.split(b"\t")
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assert total_check == b"total"
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return int(total_bytes)
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def interpret_prefixes(number, si=False):
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# prefix as the "K" in "KB"
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multiplier = 1000 if si else 1024
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if m := re.match(r"^(?i:(\d+)([kmg])?)", number):
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number, prefix = m.groups()
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else:
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raise ValueError("Can't interpret size")
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number = int(number)
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if prefix is not None:
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prefix = prefix.lower()
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exponent = {
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None: 0,
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"k": 1,
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"m": 2,
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"g": 3,
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"t": 4,
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}
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return number * multiplier ** exponent[prefix]
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@click.command()
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@click.argument("threshold")
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@click.argument("paths", nargs=-1)
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def larger_than(threshold, paths):
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"""Check if disk usage of PATHS is larger than THRESHOLD"""
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threshold = interpret_prefixes(threshold)
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if du(paths) > threshold:
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sys.exit(0)
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else:
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sys.exit(1)
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if __name__ == "__main__":
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larger_than()
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