branch Attitude Adjustment

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 227 insertions, 0 deletions

diff --git a/scripts/dl_cleanup.py b/scripts/dl_cleanup.py
new file mode 100755
index 000000000..81c69f7aa
--- /dev/null
+++ b/scripts/dl_cleanup.py
@@ -0,0 +1,227 @@
+#!/usr/bin/env python
+"""
+# OpenWRT download directory cleanup utility.
+# Delete all but the very last version of the program tarballs.
+#
+# Copyright (c) 2010 Michael Buesch <mb@bu3sch.de>
+"""
+
+import sys
+import os
+import re
+import getopt
+
+# Commandline options
+opt_dryrun = False
+
+
+def parseVer_1234(match, filepath):
+	progname = match.group(1)
+	progversion = (int(match.group(2)) << 64) |\
+		      (int(match.group(3)) << 48) |\
+		      (int(match.group(4)) << 32) |\
+		      (int(match.group(5)) << 16)
+	return (progname, progversion)
+
+def parseVer_123(match, filepath):
+	progname = match.group(1)
+	try:
+		patchlevel = match.group(5)
+	except (IndexError), e:
+		patchlevel = None
+	if patchlevel:
+		patchlevel = ord(patchlevel[0])
+	else:
+		patchlevel = 0
+	progversion = (int(match.group(2)) << 64) |\
+		      (int(match.group(3)) << 48) |\
+		      (int(match.group(4)) << 32) |\
+		      patchlevel
+	return (progname, progversion)
+
+def parseVer_12(match, filepath):
+	progname = match.group(1)
+	try:
+		patchlevel = match.group(4)
+	except (IndexError), e:
+		patchlevel = None
+	if patchlevel:
+		patchlevel = ord(patchlevel[0])
+	else:
+		patchlevel = 0
+	progversion = (int(match.group(2)) << 64) |\
+		      (int(match.group(3)) << 48) |\
+		      patchlevel
+	return (progname, progversion)
+
+def parseVer_r(match, filepath):
+	progname = match.group(1)
+	progversion = (int(match.group(2)) << 64)
+	return (progname, progversion)
+
+def parseVer_ymd(match, filepath):
+	progname = match.group(1)
+	progversion = (int(match.group(2)) << 64) |\
+		      (int(match.group(3)) << 48) |\
+		      (int(match.group(4)) << 32)
+	return (progname, progversion)
+
+def parseVer_GIT(match, filepath):
+	progname = match.group(1)
+	st = os.stat(filepath)
+	progversion = int(st.st_mtime) << 64
+	return (progname, progversion)
+
+extensions = (
+	".tar.gz",
+	".tar.bz2",
+	".orig.tar.gz",
+	".orig.tar.bz2",
+	".zip",
+	".tgz",
+	".tbz",
+)
+
+versionRegex = (
+	(re.compile(r"(.+)[-_]([0-9a-fA-F]{40,40})"), parseVer_GIT),		# xxx-GIT_SHASUM
+	(re.compile(r"(.+)[-_](\d+)\.(\d+)\.(\d+)\.(\d+)"), parseVer_1234),	# xxx-1.2.3.4
+	(re.compile(r"(.+)[-_](\d\d\d\d)-?(\d\d)-?(\d\d)"), parseVer_ymd),	# xxx-YYYY-MM-DD
+	(re.compile(r"(.+)[-_](\d+)\.(\d+)\.(\d+)(\w?)"), parseVer_123),	# xxx-1.2.3a
+	(re.compile(r"(.+)[-_](\d+)_(\d+)_(\d+)"), parseVer_123),		# xxx-1_2_3
+	(re.compile(r"(.+)[-_](\d+)\.(\d+)(\w?)"), parseVer_12),		# xxx-1.2a
+	(re.compile(r"(.+)[-_]r?(\d+)"), parseVer_r),				# xxx-r1111
+)
+
+blacklist = [
+	("linux",		re.compile(r"linux-.*")),
+	("gcc",			re.compile(r"gcc-.*")),
+	("wl_apsta",		re.compile(r"wl_apsta.*")),
+	(".fw",			re.compile(r".*\.fw")),
+	(".arm",		re.compile(r".*\.arm")),
+	(".bin",		re.compile(r".*\.bin")),
+	("rt-firmware",		re.compile(r"RT[\d\w]+_Firmware.*")),
+]
+
+class EntryParseError(Exception): pass
+
+class Entry:
+	def __init__(self, directory, filename):
+		self.directory = directory
+		self.filename = filename
+		self.progname = ""
+		self.fileext = ""
+
+		for ext in extensions:
+			if filename.endswith(ext):
+				filename = filename[0:0-len(ext)]
+				self.fileext = ext
+				break
+		else:
+			print self.filename, "has an unknown file-extension"
+			raise EntryParseError("ext")
+		for (regex, parseVersion) in versionRegex:
+			match = regex.match(filename)
+			if match:
+				(self.progname, self.version) = parseVersion(
+					match, directory + "/" + filename + self.fileext)
+				break
+		else:
+			print self.filename, "has an unknown version pattern"
+			raise EntryParseError("ver")
+
+	def deleteFile(self):
+		path = (self.directory + "/" + self.filename).replace("//", "/")
+		print "Deleting", path
+		if not opt_dryrun:
+			os.unlink(path)
+
+	def __eq__(self, y):
+		return self.filename == y.filename
+
+	def __ge__(self, y):
+		return self.version >= y.version
+
+def usage():
+	print "OpenWRT download directory cleanup utility"
+	print "Usage: " + sys.argv[0] + " [OPTIONS] <path/to/dl>"
+	print ""
+	print " -d|--dry-run            Do a dry-run. Don't delete any files"
+	print " -B|--show-blacklist     Show the blacklist and exit"
+	print " -w|--whitelist ITEM     Remove ITEM from blacklist"
+
+def main(argv):
+	global opt_dryrun
+
+	try:
+		(opts, args) = getopt.getopt(argv[1:],
+			"hdBw:",
+			[ "help", "dry-run", "show-blacklist", "whitelist=", ])
+		if len(args) != 1:
+			usage()
+			return 1
+	except getopt.GetoptError:
+		usage()
+		return 1
+	directory = args[0]
+	for (o, v) in opts:
+		if o in ("-h", "--help"):
+			usage()
+			return 0
+		if o in ("-d", "--dry-run"):
+			opt_dryrun = True
+		if o in ("-w", "--whitelist"):
+			for i in range(0, len(blacklist)):
+				(name, regex) = blacklist[i]
+				if name == v:
+					del blacklist[i]
+					break
+			else:
+				print "Whitelist error: Item", v,\
+				      "is not in blacklist"
+				return 1
+		if o in ("-B", "--show-blacklist"):
+			for (name, regex) in blacklist:
+				print name
+			return 0
+
+	# Create a directory listing and parse the file names.
+	entries = []
+	for filename in os.listdir(directory):
+		if filename == "." or filename == "..":
+			continue
+		for (name, regex) in blacklist:
+			if regex.match(filename):
+				if opt_dryrun:
+					print filename, "is blacklisted"
+				break
+		else:
+			try:
+				entries.append(Entry(directory, filename))
+			except (EntryParseError), e: pass
+
+	# Create a map of programs
+	progmap = {}
+	for entry in entries:
+		if entry.progname in progmap.keys():
+			progmap[entry.progname].append(entry)
+		else:
+			progmap[entry.progname] = [entry,]
+
+	# Traverse the program map and delete everything but the last version
+	for prog in progmap:
+		lastVersion = None
+		versions = progmap[prog]
+		for version in versions:
+			if lastVersion is None or version >= lastVersion:
+				lastVersion = version
+		if lastVersion:
+			for version in versions:
+				if version != lastVersion:
+					version.deleteFile()
+			if opt_dryrun:
+				print "Keeping", lastVersion.filename
+
+	return 0
+
+if __name__ == "__main__":
+	sys.exit(main(sys.argv))