dl_cleanup: Utility to delete all but the very last version of the tarballs in the download directory. The tool does currently have a few false positives (probably below 1%), but this is harmless, because buildroot will just redownload them.
SVN-Revision: 19018
This commit is contained in:
Michael Büsch
176
scripts/dl_cleanup.py
Executable file
176
scripts/dl_cleanup.py
Executable file
@@ -0,0 +1,176 @@
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#!/usr/bin/env python
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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 Michael Buesch <mb@bu3sch.de>
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"""
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import sys
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import os
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import re
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DEBUG = 0
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def parseVer_1234(match):
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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):
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progname = match.group(1)
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patchlevel = match.group(5)
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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):
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progname = match.group(1)
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patchlevel = match.group(4)
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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):
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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):
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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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extensions = (
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".tar.gz",
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".tar.bz2",
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".orig.tar.gz",
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".orig.tar.bz2",
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".zip",
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".tgz",
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".tbz",
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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"(.+)[-_](\d+)\.(\d+)\.(\d+)(\w?)"), parseVer_123), # xxx-1.2.3a
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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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re.compile(r"wl_apsta.*"),
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re.compile(r"boost.*"),
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re.compile(r".*\.fw"),
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re.compile(r".*\.arm"),
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re.compile(r".*\.bin"),
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re.compile(r"RT\d+_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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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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break
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else:
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if DEBUG:
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print "Extension did not match on", filename
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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(match)
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break
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else:
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if DEBUG:
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print "Version regex did not match on", filename
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raise EntryParseError("ver")
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def deleteFile(self):
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path = (self.directory + "/" + self.filename).replace("//", "/")
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print "Deleting", path
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if not DEBUG:
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os.unlink(path)
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def __eq__(self, y):
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return self.filename == y.filename
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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] + " path/to/dl"
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def main(argv):
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if len(argv) != 2:
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usage()
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return 1
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directory = argv[1]
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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 black in blacklist:
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if black.match(filename):
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if DEBUG:
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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), e: 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 != lastVersion:
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version.deleteFile()
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if DEBUG:
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print "Keeping", lastVersion.filename
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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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