Initial commit
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domenico
237
scripts/dl_cleanup.py
Executable file
237
scripts/dl_cleanup.py
Executable file
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#!/usr/bin/env python3
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"""
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# OpenWrt download directory cleanup utility.
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# Delete all but the very last version of the program tarballs.
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#
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# Copyright (C) 2010-2015 Michael Buesch <m@bues.ch>
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# Copyright (C) 2013-2015 OpenWrt.org
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"""
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from __future__ import print_function
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import sys
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import os
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import re
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import getopt
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# Commandline options
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opt_dryrun = False
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def parseVer_1234(match, filepath):
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progname = match.group(1)
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progversion = (int(match.group(2)) << 64) |\
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(int(match.group(3)) << 48) |\
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(int(match.group(4)) << 32) |\
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(int(match.group(5)) << 16)
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return (progname, progversion)
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def parseVer_123(match, filepath):
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progname = match.group(1)
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try:
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patchlevel = match.group(5)
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except IndexError as e:
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patchlevel = None
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if patchlevel:
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patchlevel = ord(patchlevel[0])
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else:
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patchlevel = 0
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progversion = (int(match.group(2)) << 64) |\
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(int(match.group(3)) << 48) |\
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(int(match.group(4)) << 32) |\
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patchlevel
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return (progname, progversion)
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def parseVer_12(match, filepath):
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progname = match.group(1)
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try:
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patchlevel = match.group(4)
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except IndexError as e:
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patchlevel = None
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if patchlevel:
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patchlevel = ord(patchlevel[0])
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else:
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patchlevel = 0
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progversion = (int(match.group(2)) << 64) |\
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(int(match.group(3)) << 48) |\
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patchlevel
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return (progname, progversion)
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def parseVer_r(match, filepath):
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progname = match.group(1)
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progversion = (int(match.group(2)) << 64)
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return (progname, progversion)
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def parseVer_ymd(match, filepath):
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progname = match.group(1)
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progversion = (int(match.group(2)) << 64) |\
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(int(match.group(3)) << 48) |\
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(int(match.group(4)) << 32)
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return (progname, progversion)
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def parseVer_GIT(match, filepath):
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progname = match.group(1)
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st = os.stat(filepath)
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progversion = int(st.st_mtime) << 64
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return (progname, progversion)
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extensions = (
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".tar.gz",
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".tar.bz2",
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".tar.xz",
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".orig.tar.gz",
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".orig.tar.bz2",
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".orig.tar.xz",
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".zip",
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".tgz",
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".tbz",
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".txz",
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)
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versionRegex = (
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(re.compile(r"(.+)[-_](\d+)\.(\d+)\.(\d+)\.(\d+)"), parseVer_1234), # xxx-1.2.3.4
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(re.compile(r"(.+)[-_](\d\d\d\d)-?(\d\d)-?(\d\d)"), parseVer_ymd), # xxx-YYYY-MM-DD
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(re.compile(r"(.+)[-_]([0-9a-fA-F]{40,40})"), parseVer_GIT), # xxx-GIT_SHASUM
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(re.compile(r"(.+)[-_](\d+)\.(\d+)\.(\d+)(\w?)"), parseVer_123), # xxx-1.2.3a
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(re.compile(r"(.+)[-_](\d+)_(\d+)_(\d+)"), parseVer_123), # xxx-1_2_3
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(re.compile(r"(.+)[-_](\d+)\.(\d+)(\w?)"), parseVer_12), # xxx-1.2a
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(re.compile(r"(.+)[-_]r?(\d+)"), parseVer_r), # xxx-r1111
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)
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blacklist = [
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("linux", re.compile(r"linux-\d.*")),
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("gcc", re.compile(r"gcc-.*")),
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("wl_apsta", re.compile(r"wl_apsta.*")),
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(".fw", re.compile(r".*\.fw")),
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(".arm", re.compile(r".*\.arm")),
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(".bin", re.compile(r".*\.bin")),
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("rt-firmware", re.compile(r"RT[\d\w]+_Firmware.*")),
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]
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class EntryParseError(Exception): pass
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class Entry:
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def __init__(self, directory, filename):
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self.directory = directory
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self.filename = filename
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self.progname = ""
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self.fileext = ""
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for ext in extensions:
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if filename.endswith(ext):
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filename = filename[0:0-len(ext)]
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self.fileext = ext
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break
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else:
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print(self.filename, "has an unknown file-extension")
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raise EntryParseError("ext")
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for (regex, parseVersion) in versionRegex:
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match = regex.match(filename)
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if match:
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(self.progname, self.version) = parseVersion(
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match, directory + "/" + filename + self.fileext)
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break
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else:
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print(self.filename, "has an unknown version pattern")
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raise EntryParseError("ver")
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def getPath(self):
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return (self.directory + "/" + self.filename).replace("//", "/")
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def deleteFile(self):
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path = self.getPath()
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print("Deleting", path)
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if not opt_dryrun:
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os.unlink(path)
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def __ge__(self, y):
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return self.version >= y.version
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def usage():
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print("OpenWrt download directory cleanup utility")
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print("Usage: " + sys.argv[0] + " [OPTIONS] <path/to/dl>")
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print("")
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print(" -d|--dry-run Do a dry-run. Don't delete any files")
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print(" -B|--show-blacklist Show the blacklist and exit")
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print(" -w|--whitelist ITEM Remove ITEM from blacklist")
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def main(argv):
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global opt_dryrun
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try:
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(opts, args) = getopt.getopt(argv[1:],
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"hdBw:",
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[ "help", "dry-run", "show-blacklist", "whitelist=", ])
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if len(args) != 1:
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usage()
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return 1
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except getopt.GetoptError as e:
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usage()
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return 1
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directory = args[0]
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for (o, v) in opts:
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if o in ("-h", "--help"):
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usage()
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return 0
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if o in ("-d", "--dry-run"):
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opt_dryrun = True
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if o in ("-w", "--whitelist"):
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for i in range(0, len(blacklist)):
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(name, regex) = blacklist[i]
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if name == v:
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del blacklist[i]
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break
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else:
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print("Whitelist error: Item", v,\
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"is not in blacklist")
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return 1
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if o in ("-B", "--show-blacklist"):
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for (name, regex) in blacklist:
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sep = "\t\t"
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if len(name) >= 8:
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sep = "\t"
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print("%s%s(%s)" % (name, sep, regex.pattern))
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return 0
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# Create a directory listing and parse the file names.
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entries = []
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for filename in os.listdir(directory):
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if filename == "." or filename == "..":
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continue
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for (name, regex) in blacklist:
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if regex.match(filename):
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if opt_dryrun:
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print(filename, "is blacklisted")
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break
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else:
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try:
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entries.append(Entry(directory, filename))
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except EntryParseError as e:
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pass
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# Create a map of programs
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progmap = {}
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for entry in entries:
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if entry.progname in progmap.keys():
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progmap[entry.progname].append(entry)
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else:
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progmap[entry.progname] = [entry,]
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# Traverse the program map and delete everything but the last version
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for prog in progmap:
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lastVersion = None
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versions = progmap[prog]
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for version in versions:
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if lastVersion is None or version >= lastVersion:
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lastVersion = version
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if lastVersion:
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for version in versions:
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if version is not lastVersion:
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version.deleteFile()
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if opt_dryrun:
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print("Keeping", lastVersion.getPath())
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return 0
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if __name__ == "__main__":
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sys.exit(main(sys.argv))
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