| #!/usr/bin/env python3 |
| |
| import argparse |
| import glob |
| import json |
| import os |
| import re |
| import time |
| |
| BASE_DIR = "/var/www/portals" |
| IGNORE_DIRS = ['node_modules', 'venv'] |
| # Example filenames: |
| # - pattern: [name].[checksum].[ext] |
| # - example: "chunk-common.c7db5bee.js" |
| # - pattern: [name].[checksum].chunk.[ext] |
| # - example: "main.bbfe2914.chunk.css" |
| REGEX = re.compile(r"^([\w-]+)\.([a-f0-9]{8})\.((?:chunk\.)?(?:js|js\.map|css|css\.map))$") |
| MAX_ATIME_AGE_HOURS = 24 |
| |
| parser = argparse.ArgumentParser() |
| parser.add_argument("-b", "--basedir", default=BASE_DIR, help="base directory from which to look for older built JS/CSS files") |
| args = parser.parse_args() |
| |
| for root, dirs, files in os.walk(args.basedir): |
| for i in IGNORE_DIRS: |
| if i in dirs: |
| dirs.remove(i) |
| if "webpack-stats.json" in files: |
| # print(f"Found webpack-stats.json in {root}") |
| with open(os.path.join(root, "webpack-stats.json")) as sf: |
| stats = json.load(sf) |
| for chunk, files in stats["chunks"].items(): |
| for f in files: |
| dirname, filename = os.path.split(f["name"]) |
| # capture base name and hash and extension |
| m = REGEX.match(filename) |
| if m is not None: |
| basename, content_hash, file_ext = m.groups() |
| other_files = glob.glob(os.path.join(root, dirname, basename + ".*." + file_ext)) |
| for other_file in other_files: |
| m = REGEX.match(os.path.basename(other_file)) |
| other_hash = m.group(2) |
| if other_hash != content_hash: |
| # Check last accessed time and remove file if more than MAX_ATIME_AGE_HOURS old |
| atime = os.stat(other_file).st_atime |
| atime_hours = (time.time() - atime) / 3600 |
| if atime_hours > MAX_ATIME_AGE_HOURS: |
| print(f"Deleting alternate of {filename} {file_ext}, {atime_hours} hours old: {other_file}") |
| os.remove(other_file) |
| else: |
| raise Exception(f"Regex failed on filename {filename} in {root}") |
