target/toolchain: strip files, leave out the initial gcc
[openwrt.git] / scripts / dl_cleanup.py
1 #!/usr/bin/env python
2 """
3 # OpenWRT download directory cleanup utility.
4 # Delete all but the very last version of the program tarballs.
5 #
6 # Copyright (C) 2010 Michael Buesch <mb@bu3sch.de>
7 # Copyright (C) 2013 OpenWrt.org
8 """
9
10 import sys
11 import os
12 import re
13 import getopt
14
15 # Commandline options
16 opt_dryrun = False
17
18
19 def parseVer_1234(match, filepath):
20         progname = match.group(1)
21         progversion = (int(match.group(2)) << 64) |\
22                       (int(match.group(3)) << 48) |\
23                       (int(match.group(4)) << 32) |\
24                       (int(match.group(5)) << 16)
25         return (progname, progversion)
26
27 def parseVer_123(match, filepath):
28         progname = match.group(1)
29         try:
30                 patchlevel = match.group(5)
31         except (IndexError), e:
32                 patchlevel = None
33         if patchlevel:
34                 patchlevel = ord(patchlevel[0])
35         else:
36                 patchlevel = 0
37         progversion = (int(match.group(2)) << 64) |\
38                       (int(match.group(3)) << 48) |\
39                       (int(match.group(4)) << 32) |\
40                       patchlevel
41         return (progname, progversion)
42
43 def parseVer_12(match, filepath):
44         progname = match.group(1)
45         try:
46                 patchlevel = match.group(4)
47         except (IndexError), e:
48                 patchlevel = None
49         if patchlevel:
50                 patchlevel = ord(patchlevel[0])
51         else:
52                 patchlevel = 0
53         progversion = (int(match.group(2)) << 64) |\
54                       (int(match.group(3)) << 48) |\
55                       patchlevel
56         return (progname, progversion)
57
58 def parseVer_r(match, filepath):
59         progname = match.group(1)
60         progversion = (int(match.group(2)) << 64)
61         return (progname, progversion)
62
63 def parseVer_ymd(match, filepath):
64         progname = match.group(1)
65         progversion = (int(match.group(2)) << 64) |\
66                       (int(match.group(3)) << 48) |\
67                       (int(match.group(4)) << 32)
68         return (progname, progversion)
69
70 def parseVer_GIT(match, filepath):
71         progname = match.group(1)
72         st = os.stat(filepath)
73         progversion = int(st.st_mtime) << 64
74         return (progname, progversion)
75
76 extensions = (
77         ".tar.gz",
78         ".tar.bz2",
79         ".tar.xz",
80         ".orig.tar.gz",
81         ".orig.tar.bz2",
82         ".orig.tar.xz",
83         ".zip",
84         ".tgz",
85         ".tbz",
86         ".txz",
87 )
88
89 versionRegex = (
90         (re.compile(r"(.+)[-_](\d+)\.(\d+)\.(\d+)\.(\d+)"), parseVer_1234),     # xxx-1.2.3.4
91         (re.compile(r"(.+)[-_](\d\d\d\d)-?(\d\d)-?(\d\d)"), parseVer_ymd),      # xxx-YYYY-MM-DD
92         (re.compile(r"(.+)[-_]([0-9a-fA-F]{40,40})"), parseVer_GIT),            # xxx-GIT_SHASUM
93         (re.compile(r"(.+)[-_](\d+)\.(\d+)\.(\d+)(\w?)"), parseVer_123),        # xxx-1.2.3a
94         (re.compile(r"(.+)[-_](\d+)_(\d+)_(\d+)"), parseVer_123),               # xxx-1_2_3
95         (re.compile(r"(.+)[-_](\d+)\.(\d+)(\w?)"), parseVer_12),                # xxx-1.2a
96         (re.compile(r"(.+)[-_]r?(\d+)"), parseVer_r),                           # xxx-r1111
97 )
98
99 blacklist = [
100         ("linux",               re.compile(r"linux-.*")),
101         ("gcc",                 re.compile(r"gcc-.*")),
102         ("wl_apsta",            re.compile(r"wl_apsta.*")),
103         (".fw",                 re.compile(r".*\.fw")),
104         (".arm",                re.compile(r".*\.arm")),
105         (".bin",                re.compile(r".*\.bin")),
106         ("rt-firmware",         re.compile(r"RT[\d\w]+_Firmware.*")),
107 ]
108
109 class EntryParseError(Exception): pass
110
111 class Entry:
112         def __init__(self, directory, filename):
113                 self.directory = directory
114                 self.filename = filename
115                 self.progname = ""
116                 self.fileext = ""
117
118                 for ext in extensions:
119                         if filename.endswith(ext):
120                                 filename = filename[0:0-len(ext)]
121                                 self.fileext = ext
122                                 break
123                 else:
124                         print self.filename, "has an unknown file-extension"
125                         raise EntryParseError("ext")
126                 for (regex, parseVersion) in versionRegex:
127                         match = regex.match(filename)
128                         if match:
129                                 (self.progname, self.version) = parseVersion(
130                                         match, directory + "/" + filename + self.fileext)
131                                 break
132                 else:
133                         print self.filename, "has an unknown version pattern"
134                         raise EntryParseError("ver")
135
136         def deleteFile(self):
137                 path = (self.directory + "/" + self.filename).replace("//", "/")
138                 print "Deleting", path
139                 if not opt_dryrun:
140                         os.unlink(path)
141
142         def __eq__(self, y):
143                 return self.filename == y.filename
144
145         def __ge__(self, y):
146                 return self.version >= y.version
147
148 def usage():
149         print "OpenWRT download directory cleanup utility"
150         print "Usage: " + sys.argv[0] + " [OPTIONS] <path/to/dl>"
151         print ""
152         print " -d|--dry-run            Do a dry-run. Don't delete any files"
153         print " -B|--show-blacklist     Show the blacklist and exit"
154         print " -w|--whitelist ITEM     Remove ITEM from blacklist"
155
156 def main(argv):
157         global opt_dryrun
158
159         try:
160                 (opts, args) = getopt.getopt(argv[1:],
161                         "hdBw:",
162                         [ "help", "dry-run", "show-blacklist", "whitelist=", ])
163                 if len(args) != 1:
164                         usage()
165                         return 1
166         except getopt.GetoptError:
167                 usage()
168                 return 1
169         directory = args[0]
170         for (o, v) in opts:
171                 if o in ("-h", "--help"):
172                         usage()
173                         return 0
174                 if o in ("-d", "--dry-run"):
175                         opt_dryrun = True
176                 if o in ("-w", "--whitelist"):
177                         for i in range(0, len(blacklist)):
178                                 (name, regex) = blacklist[i]
179                                 if name == v:
180                                         del blacklist[i]
181                                         break
182                         else:
183                                 print "Whitelist error: Item", v,\
184                                       "is not in blacklist"
185                                 return 1
186                 if o in ("-B", "--show-blacklist"):
187                         for (name, regex) in blacklist:
188                                 print name
189                         return 0
190
191         # Create a directory listing and parse the file names.
192         entries = []
193         for filename in os.listdir(directory):
194                 if filename == "." or filename == "..":
195                         continue
196                 for (name, regex) in blacklist:
197                         if regex.match(filename):
198                                 if opt_dryrun:
199                                         print filename, "is blacklisted"
200                                 break
201                 else:
202                         try:
203                                 entries.append(Entry(directory, filename))
204                         except (EntryParseError), e: pass
205
206         # Create a map of programs
207         progmap = {}
208         for entry in entries:
209                 if entry.progname in progmap.keys():
210                         progmap[entry.progname].append(entry)
211                 else:
212                         progmap[entry.progname] = [entry,]
213
214         # Traverse the program map and delete everything but the last version
215         for prog in progmap:
216                 lastVersion = None
217                 versions = progmap[prog]
218                 for version in versions:
219                         if lastVersion is None or version >= lastVersion:
220                                 lastVersion = version
221                 if lastVersion:
222                         for version in versions:
223                                 if version != lastVersion:
224                                         version.deleteFile()
225                         if opt_dryrun:
226                                 print "Keeping", lastVersion.filename
227
228         return 0
229
230 if __name__ == "__main__":
231         sys.exit(main(sys.argv))