Wed, 30 Apr 2008 21:33:30 -0400
Add missing test tarballs
1 | 1 | #!/usr/bin/env python |
2 | # | |
19 | 3 | # dtrx -- Intelligently extract various archive types. |
54 | 4 | # Copyright (c) 2006, 2007, 2008 Brett Smith <brettcsmith@brettcsmith.org>. |
1 | 5 | # |
6 | # This program is free software; you can redistribute it and/or modify it | |
7 | # under the terms of the GNU General Public License as published by the | |
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8 | # Free Software Foundation; either version 3 of the License, or (at your |
1 | 9 | # option) any later version. |
10 | # | |
11 | # This program is distributed in the hope that it will be useful, but | |
12 | # WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General | |
14 | # Public License for more details. | |
15 | # | |
16 | # You should have received a copy of the GNU General Public License along | |
42 | 17 | # with this program; if not, see <http://www.gnu.org/licenses/>. |
1 | 18 | |
5 | 19 | import errno |
48 | 20 | import glob |
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21 | import logging |
1 | 22 | import mimetypes |
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23 | import optparse |
1 | 24 | import os |
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25 | import re |
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26 | import shutil |
48 | 27 | import signal |
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28 | import stat |
1 | 29 | import subprocess |
30 | import sys | |
31 | import tempfile | |
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32 | import textwrap |
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33 | import traceback |
1 | 34 | |
48 | 35 | from sets import Set as set |
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36 | |
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37 | VERSION = "6.0" |
19 | 38 | VERSION_BANNER = """dtrx version %s |
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39 | Copyright (c) 2006, 2007, 2008 Brett Smith <brettcsmith@brettcsmith.org> |
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40 | |
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41 | This program is free software; you can redistribute it and/or modify it |
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42 | under the terms of the GNU General Public License as published by the |
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43 | Free Software Foundation; either version 3 of the License, or (at your |
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44 | option) any later version. |
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45 | |
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46 | This program is distributed in the hope that it will be useful, but |
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47 | WITHOUT ANY WARRANTY; without even the implied warranty of |
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48 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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49 | Public License for more details.""" % (VERSION,) |
1 | 50 | |
51 | MATCHING_DIRECTORY = 1 | |
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52 | ONE_ENTRY = 2 |
1 | 53 | BOMB = 3 |
54 | EMPTY = 4 | |
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55 | ONE_ENTRY_KNOWN = 5 |
1 | 56 | |
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57 | EXTRACT_HERE = 1 |
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58 | EXTRACT_WRAP = 2 |
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59 | EXTRACT_RENAME = 3 |
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60 | |
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61 | RECURSE_ALWAYS = 1 |
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62 | RECURSE_ONCE = 2 |
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63 | RECURSE_NOT_NOW = 3 |
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64 | RECURSE_NEVER = 4 |
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65 | RECURSE_LIST = 5 |
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66 | |
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67 | mimetypes.encodings_map.setdefault('.bz2', 'bzip2') |
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68 | mimetypes.encodings_map.setdefault('.lzma', 'lzma') |
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69 | mimetypes.types_map.setdefault('.gem', 'application/x-ruby-gem') |
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70 | |
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71 | logger = logging.getLogger('dtrx-log') |
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72 | |
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73 | class FilenameChecker(object): |
58 | 74 | free_func = os.open |
75 | free_args = (os.O_CREAT | os.O_EXCL,) | |
76 | free_close = os.close | |
77 | ||
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78 | def __init__(self, original_name): |
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79 | self.original_name = original_name |
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80 | |
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81 | def is_free(self, filename): |
58 | 82 | try: |
83 | result = self.free_func(filename, *self.free_args) | |
84 | except OSError, error: | |
85 | if error.errno == errno.EEXIST: | |
86 | return False | |
87 | raise | |
88 | if self.free_close: | |
89 | self.free_close(result) | |
90 | return True | |
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91 | |
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92 | def create(self): |
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93 | fd, filename = tempfile.mkstemp(prefix=self.original_name + '.', |
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94 | dir='.') |
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95 | os.close(fd) |
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96 | return filename |
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97 | |
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98 | def check(self): |
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99 | for suffix in [''] + ['.%s' % (x,) for x in range(1, 10)]: |
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100 | filename = '%s%s' % (self.original_name, suffix) |
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101 | if self.is_free(filename): |
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102 | return filename |
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103 | return self.create() |
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104 | |
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105 | |
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106 | class DirectoryChecker(FilenameChecker): |
58 | 107 | free_func = os.mkdir |
108 | free_args = () | |
109 | free_close = None | |
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110 | |
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111 | def create(self): |
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112 | return tempfile.mkdtemp(prefix=self.original_name + '.', dir='.') |
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113 | |
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114 | |
1 | 115 | class ExtractorError(Exception): |
116 | pass | |
117 | ||
118 | ||
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119 | class ExtractorUnusable(Exception): |
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120 | pass |
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121 | |
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122 | |
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123 | EXTRACTION_ERRORS = (ExtractorError, ExtractorUnusable, OSError, IOError) |
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124 | |
1 | 125 | class BaseExtractor(object): |
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126 | decoders = {'bzip2': 'bzcat', 'gzip': 'zcat', 'compress': 'zcat', |
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127 | 'lzma': 'lzcat'} |
1 | 128 | |
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129 | name_checker = DirectoryChecker |
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130 | |
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131 | def __init__(self, filename, encoding): |
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132 | if encoding and (not self.decoders.has_key(encoding)): |
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133 | raise ValueError("unrecognized encoding %s" % (encoding,)) |
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134 | self.filename = os.path.realpath(filename) |
1 | 135 | self.encoding = encoding |
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136 | self.included_archives = [] |
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137 | self.target = None |
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138 | self.content_type = None |
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139 | self.content_name = None |
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140 | self.pipes = [] |
5 | 141 | try: |
142 | self.archive = open(filename, 'r') | |
143 | except (IOError, OSError), error: | |
144 | raise ExtractorError("could not open %s: %s" % | |
145 | (filename, error.strerror)) | |
1 | 146 | if encoding: |
147 | self.pipe([self.decoders[encoding]], "decoding") | |
148 | self.prepare() | |
149 | ||
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150 | def pipe(self, command, description="extraction"): |
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151 | self.pipes.append((command, description)) |
1 | 152 | |
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153 | def run_pipes(self, final_stdout=None): |
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154 | if not self.pipes: |
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155 | return |
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156 | elif final_stdout is None: |
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157 | # FIXME: Buffering this might be dumb. |
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158 | final_stdout = tempfile.TemporaryFile() |
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159 | num_pipes = len(self.pipes) |
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160 | last_pipe = num_pipes - 1 |
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161 | processes = [] |
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162 | for index, command in enumerate([pipe[0] for pipe in self.pipes]): |
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163 | if index == 0: |
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164 | stdin = self.archive |
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165 | else: |
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166 | stdin = processes[-1].stdout |
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167 | if index == last_pipe: |
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168 | stdout = final_stdout |
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169 | else: |
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170 | stdout = subprocess.PIPE |
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171 | try: |
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172 | processes.append(subprocess.Popen(command, stdin=stdin, |
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173 | stdout=stdout, |
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174 | stderr=subprocess.PIPE)) |
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175 | except OSError, error: |
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176 | if error.errno == errno.ENOENT: |
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177 | raise ExtractorUnusable("could not run %s" % (command[0],)) |
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178 | raise |
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179 | exit_codes = [pipe.wait() for pipe in processes] |
1 | 180 | self.archive.close() |
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181 | for index in range(last_pipe): |
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182 | processes[index].stdout.close() |
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183 | processes[index].stderr.close() |
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184 | for index, status in enumerate(exit_codes): |
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185 | if status != 0: |
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186 | raise ExtractorError("%s error: '%s' returned status code %s" % |
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187 | (self.pipes[index][1], |
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188 | ' '.join(self.pipes[index][0]), status)) |
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189 | self.archive = final_stdout |
1 | 190 | |
191 | def prepare(self): | |
192 | pass | |
193 | ||
47 | 194 | def check_included_archives(self): |
195 | if (self.content_name is None) or (not self.content_name.endswith('/')): | |
196 | self.included_root = './' | |
197 | else: | |
198 | self.included_root = self.content_name | |
199 | start_index = len(self.included_root) | |
200 | for path, dirname, filenames in os.walk(self.included_root): | |
201 | path = path[start_index:] | |
202 | for filename in filenames: | |
203 | if (ExtractorBuilder.try_by_mimetype(filename) or | |
204 | ExtractorBuilder.try_by_extension(filename)): | |
205 | self.included_archives.append(os.path.join(path, filename)) | |
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206 | |
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207 | def check_contents(self): |
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208 | self.contents = os.listdir('.') |
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209 | if not self.contents: |
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210 | self.content_type = EMPTY |
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211 | elif len(self.contents) == 1: |
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212 | if self.basename() == self.contents[0]: |
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213 | self.content_type = MATCHING_DIRECTORY |
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214 | else: |
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215 | self.content_type = ONE_ENTRY |
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216 | self.content_name = self.contents[0] |
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217 | if os.path.isdir(self.contents[0]): |
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218 | self.content_name += '/' |
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219 | else: |
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220 | self.content_type = BOMB |
47 | 221 | self.check_included_archives() |
1 | 222 | |
223 | def basename(self): | |
5 | 224 | pieces = os.path.basename(self.filename).split('.') |
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225 | extension = '.' + pieces[-1] |
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226 | if mimetypes.encodings_map.has_key(extension): |
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227 | pieces.pop() |
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228 | extension = '.' + pieces[-1] |
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229 | if (mimetypes.types_map.has_key(extension) or |
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230 | mimetypes.common_types.has_key(extension) or |
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231 | mimetypes.suffix_map.has_key(extension)): |
1 | 232 | pieces.pop() |
233 | return '.'.join(pieces) | |
234 | ||
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235 | def extract(self): |
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236 | try: |
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237 | self.target = tempfile.mkdtemp(prefix='.dtrx-', dir='.') |
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238 | except (OSError, IOError), error: |
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239 | raise ExtractorError("cannot extract here: %s" % (error.strerror,)) |
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240 | old_path = os.path.realpath(os.curdir) |
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241 | os.chdir(self.target) |
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242 | try: |
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243 | self.archive.seek(0, 0) |
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244 | self.extract_archive() |
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245 | self.check_contents() |
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246 | except EXTRACTION_ERRORS: |
48 | 247 | self.archive.close() |
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248 | os.chdir(old_path) |
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249 | shutil.rmtree(self.target, ignore_errors=True) |
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250 | raise |
48 | 251 | self.archive.close() |
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252 | os.chdir(old_path) |
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253 | |
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254 | def get_filenames(self): |
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255 | self.run_pipes() |
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256 | self.archive.seek(0, 0) |
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257 | while True: |
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258 | line = self.archive.readline() |
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259 | if not line: |
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260 | self.archive.close() |
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261 | return |
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262 | yield line.rstrip('\n') |
1 | 263 | |
264 | ||
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265 | class CompressionExtractor(BaseExtractor): |
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266 | file_type = 'compressed file' |
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267 | name_checker = FilenameChecker |
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268 | |
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269 | def basename(self): |
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270 | pieces = os.path.basename(self.filename).split('.') |
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271 | extension = '.' + pieces[-1] |
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272 | if mimetypes.encodings_map.has_key(extension): |
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273 | pieces.pop() |
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274 | return '.'.join(pieces) |
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275 | |
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276 | def get_filenames(self): |
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277 | yield self.basename() |
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278 | |
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279 | def extract(self): |
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280 | self.content_type = ONE_ENTRY_KNOWN |
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281 | self.content_name = self.basename() |
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282 | self.contents = None |
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283 | self.included_root = './' |
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284 | try: |
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285 | output_fd, self.target = tempfile.mkstemp(prefix='.dtrx-', dir='.') |
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286 | except (OSError, IOError), error: |
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287 | raise ExtractorError("cannot extract here: %s" % (error.strerror,)) |
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288 | try: |
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289 | self.run_pipes(output_fd) |
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290 | except EXTRACTION_ERRORS: |
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291 | os.close(output_fd) |
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292 | os.unlink(self.target) |
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293 | raise |
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294 | os.close(output_fd) |
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295 | |
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296 | |
1 | 297 | class TarExtractor(BaseExtractor): |
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298 | file_type = 'tar file' |
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299 | |
1 | 300 | def get_filenames(self): |
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301 | self.pipe(['tar', '-t'], "listing") |
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302 | return BaseExtractor.get_filenames(self) |
1 | 303 | |
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304 | def extract_archive(self): |
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305 | self.pipe(['tar', '-x']) |
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306 | self.run_pipes() |
1 | 307 | |
308 | ||
309 | class CpioExtractor(BaseExtractor): | |
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310 | file_type = 'cpio file' |
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311 | |
1 | 312 | def get_filenames(self): |
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313 | self.pipe(['cpio', '-t'], "listing") |
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314 | return BaseExtractor.get_filenames(self) |
1 | 315 | |
316 | def extract_archive(self): | |
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317 | self.pipe(['cpio', '-i', '--make-directories', |
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318 | '--no-absolute-filenames']) |
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319 | self.run_pipes() |
1 | 320 | |
321 | ||
322 | class RPMExtractor(CpioExtractor): | |
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323 | file_type = 'RPM' |
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324 | |
1 | 325 | def prepare(self): |
326 | self.pipe(['rpm2cpio', '-'], "rpm2cpio") | |
327 | ||
328 | def basename(self): | |
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329 | pieces = os.path.basename(self.filename).split('.') |
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330 | if len(pieces) == 1: |
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331 | return pieces[0] |
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332 | elif pieces[-1] != 'rpm': |
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333 | return BaseExtractor.basename(self) |
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334 | pieces.pop() |
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335 | if len(pieces) == 1: |
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336 | return pieces[0] |
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337 | elif len(pieces[-1]) < 8: |
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338 | pieces.pop() |
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339 | return '.'.join(pieces) |
1 | 340 | |
341 | def check_contents(self): | |
47 | 342 | self.check_included_archives() |
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343 | self.content_type = BOMB |
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344 | |
1 | 345 | |
346 | class DebExtractor(TarExtractor): | |
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347 | file_type = 'Debian package' |
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348 | |
1 | 349 | def prepare(self): |
350 | self.pipe(['ar', 'p', self.filename, 'data.tar.gz'], | |
351 | "data.tar.gz extraction") | |
352 | self.pipe(['zcat'], "data.tar.gz decompression") | |
353 | ||
354 | def basename(self): | |
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355 | pieces = os.path.basename(self.filename).split('_') |
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356 | if len(pieces) == 1: |
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357 | return pieces[0] |
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358 | last_piece = pieces.pop() |
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359 | if (len(last_piece) > 10) or (not last_piece.endswith('.deb')): |
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360 | return BaseExtractor.basename(self) |
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361 | return '_'.join(pieces) |
1 | 362 | |
363 | def check_contents(self): | |
47 | 364 | self.check_included_archives() |
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365 | self.content_type = BOMB |
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366 | |
1 | 367 | |
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368 | class DebMetadataExtractor(DebExtractor): |
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369 | def prepare(self): |
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370 | self.pipe(['ar', 'p', self.filename, 'control.tar.gz'], |
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371 | "control.tar.gz extraction") |
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372 | self.pipe(['zcat'], "control.tar.gz decompression") |
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373 | |
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374 | |
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375 | class GemExtractor(TarExtractor): |
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376 | file_type = 'Ruby gem' |
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377 | |
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378 | def prepare(self): |
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379 | self.pipe(['tar', '-xO', 'data.tar.gz'], "data.tar.gz extraction") |
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380 | self.pipe(['zcat'], "data.tar.gz decompression") |
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381 | |
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382 | def check_contents(self): |
47 | 383 | self.check_included_archives() |
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384 | self.content_type = BOMB |
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385 | |
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386 | |
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387 | class GemMetadataExtractor(CompressionExtractor): |
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388 | file_type = 'Ruby gem' |
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389 | |
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390 | def prepare(self): |
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391 | self.pipe(['tar', '-xO', 'metadata.gz'], "metadata.gz extraction") |
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392 | self.pipe(['zcat'], "metadata.gz decompression") |
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393 | |
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394 | def basename(self): |
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395 | return os.path.basename(self.filename) + '-metadata.txt' |
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396 | |
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397 | |
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398 | class NoPipeExtractor(BaseExtractor): |
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399 | # Some extraction tools won't accept the archive from stdin. With |
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400 | # these, the piping infrastructure we normally set up generally doesn't |
39
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401 | # work, at least at first. We can still use most of it; we just don't |
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402 | # want to seed self.archive with the archive file, since that sucks up |
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403 | # memory. So instead we seed it with /dev/null, and specify the |
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404 | # filename on the command line as necessary. We also open the actual |
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405 | # file with os.open, to make sure we can actually do it (permissions |
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406 | # are good, etc.). This class doesn't do anything by itself; it's just |
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407 | # meant to be a base class for extractors that rely on these dumb |
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408 | # tools. |
32 | 409 | def __init__(self, filename, encoding): |
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410 | os.close(os.open(filename, os.O_RDONLY)) |
32 | 411 | BaseExtractor.__init__(self, '/dev/null', None) |
412 | self.filename = os.path.realpath(filename) | |
413 | ||
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414 | |
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415 | class ZipExtractor(NoPipeExtractor): |
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416 | file_type = 'Zip file' |
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417 | |
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418 | def get_filenames(self): |
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419 | self.pipe(['zipinfo', '-1', self.filename], "listing") |
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420 | return BaseExtractor.get_filenames(self) |
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421 | |
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422 | def extract_archive(self): |
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423 | self.pipe(['unzip', '-q', self.filename]) |
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424 | self.run_pipes() |
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425 | |
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426 | |
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427 | class SevenExtractor(NoPipeExtractor): |
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428 | file_type = '7z file' |
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429 | border_re = re.compile('^[- ]+$') |
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430 | |
32 | 431 | def get_filenames(self): |
432 | self.pipe(['7z', 'l', self.filename], "listing") | |
433 | self.run_pipes() | |
434 | self.archive.seek(0, 0) | |
435 | fn_index = None | |
436 | for line in self.archive: | |
437 | if self.border_re.match(line): | |
438 | if fn_index is not None: | |
439 | break | |
440 | else: | |
441 | fn_index = line.rindex(' ') + 1 | |
442 | elif fn_index is not None: | |
443 | yield line[fn_index:-1] | |
444 | self.archive.close() | |
445 | ||
446 | def extract_archive(self): | |
447 | self.pipe(['7z', 'x', self.filename]) | |
448 | self.run_pipes() | |
449 | ||
450 | ||
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451 | class CABExtractor(NoPipeExtractor): |
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452 | file_type = 'CAB archive' |
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453 | border_re = re.compile(r'^[-\+]+$') |
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454 | |
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455 | def get_filenames(self): |
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456 | self.pipe(['cabextract', '-l', self.filename], "listing") |
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457 | self.run_pipes() |
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458 | self.archive.seek(0, 0) |
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459 | fn_index = None |
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460 | for line in self.archive: |
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461 | if self.border_re.match(line): |
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462 | break |
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463 | for line in self.archive: |
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464 | try: |
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465 | yield line.split(' | ', 2)[2].rstrip('\n') |
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466 | except IndexError: |
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467 | break |
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468 | self.archive.close() |
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469 | |
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470 | def extract_archive(self): |
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471 | self.pipe(['cabextract', '-q', self.filename]) |
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472 | self.run_pipes() |
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473 | |
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474 | |
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475 | class BaseHandler(object): |
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476 | def __init__(self, extractor, options): |
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477 | self.extractor = extractor |
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478 | self.options = options |
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479 | self.target = None |
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480 | |
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481 | def handle(self): |
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482 | command = 'find' |
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483 | status = subprocess.call(['find', self.extractor.target, '-type', 'd', |
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484 | '-exec', 'chmod', 'u+rwx', '{}', ';']) |
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485 | if status == 0: |
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486 | command = 'chmod' |
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487 | status = subprocess.call(['chmod', '-R', 'u+rwX', |
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488 | self.extractor.target]) |
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489 | if status != 0: |
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490 | return "%s returned with exit status %s" % (command, status) |
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491 | return self.organize() |
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492 | |
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493 | def set_target(self, target, checker): |
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494 | self.target = checker(target).check() |
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495 | if self.target != target: |
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496 | logger.warning("extracting %s to %s" % |
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[svn] Minor clean-ups. The most important of these is that we now have a better
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497 | (self.extractor.filename, self.target)) |
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498 | |
14
6f9e1bb59719
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499 | |
16
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500 | # The "where to extract" table, with options and archive types. |
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501 | # This dictates the contents of each can_handle method. |
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502 | # |
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503 | # Flat Overwrite None |
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504 | # File basename basename FilenameChecked |
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505 | # Match . . tempdir + checked |
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506 | # Bomb . basename DirectoryChecked |
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507 | |
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508 | class FlatHandler(BaseHandler): |
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[svn] There's now an entirely new object hierarchy for handlers, because the
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|
509 | def can_handle(contents, options): |
22
b240777ae53e
[svn] Improve the way we check archive contents. If all the entries look like
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510 | return ((options.flat and (contents != ONE_ENTRY_KNOWN)) or |
16
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[svn] There's now an entirely new object hierarchy for handlers, because the
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parents:
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diff
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|
511 | (options.overwrite and (contents == MATCHING_DIRECTORY))) |
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[svn] There's now an entirely new object hierarchy for handlers, because the
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512 | can_handle = staticmethod(can_handle) |
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diff
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|
513 | |
28
4d88f2231d33
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diff
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514 | def organize(self): |
17
481a2b4be471
[svn] Lots of tests for various boundary cases, and slightly better handling for
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diff
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515 | self.target = '.' |
28
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diff
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516 | for curdir, dirs, filenames in os.walk(self.extractor.target, |
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
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517 | topdown=False): |
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parents:
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518 | path_parts = curdir.split(os.sep) |
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[svn] Change all the license notices from GPLv2 to GPLv3.
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parents:
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diff
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519 | if path_parts[0] == '.': |
31
c3a2760d1c3a
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diff
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520 | del path_parts[1] |
28
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diff
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521 | else: |
31
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diff
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522 | del path_parts[0] |
28
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parents:
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diff
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523 | newdir = os.path.join(*path_parts) |
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diff
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524 | if not os.path.isdir(newdir): |
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[svn] Change all the license notices from GPLv2 to GPLv3.
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diff
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525 | os.makedirs(newdir) |
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[svn] Change all the license notices from GPLv2 to GPLv3.
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diff
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526 | for filename in filenames: |
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[svn] Change all the license notices from GPLv2 to GPLv3.
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parents:
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diff
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|
527 | os.rename(os.path.join(curdir, filename), |
4d88f2231d33
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parents:
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diff
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|
528 | os.path.join(newdir, filename)) |
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parents:
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diff
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|
529 | os.rmdir(curdir) |
16
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
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parents:
15
diff
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530 | |
14
6f9e1bb59719
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parents:
13
diff
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|
531 | |
16
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[svn] There's now an entirely new object hierarchy for handlers, because the
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parents:
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diff
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532 | class OverwriteHandler(BaseHandler): |
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[svn] There's now an entirely new object hierarchy for handlers, because the
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parents:
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diff
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533 | def can_handle(contents, options): |
22
b240777ae53e
[svn] Improve the way we check archive contents. If all the entries look like
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parents:
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diff
changeset
|
534 | return ((options.flat and (contents == ONE_ENTRY_KNOWN)) or |
16
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
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parents:
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diff
changeset
|
535 | (options.overwrite and (contents != MATCHING_DIRECTORY))) |
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
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parents:
15
diff
changeset
|
536 | can_handle = staticmethod(can_handle) |
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
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parents:
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diff
changeset
|
537 | |
28
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
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parents:
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diff
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538 | def organize(self): |
16
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
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parents:
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diff
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|
539 | self.target = self.extractor.basename() |
51
f1789e6586d8
[svn] Don't try to rmtree when overwriting just a file.
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parents:
49
diff
changeset
|
540 | if os.path.isdir(self.target): |
f1789e6586d8
[svn] Don't try to rmtree when overwriting just a file.
brett
parents:
49
diff
changeset
|
541 | shutil.rmtree(self.target) |
48 | 542 | os.rename(self.extractor.target, self.target) |
16
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
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parents:
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diff
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|
543 | |
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parents:
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diff
changeset
|
544 | |
29794d4d41aa
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parents:
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diff
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|
545 | class MatchHandler(BaseHandler): |
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
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parents:
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diff
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|
546 | def can_handle(contents, options): |
20
69c93c3e6972
[svn] If the archive contains one directory with the "wrong" name, ask the user
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parents:
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diff
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|
547 | return ((contents == MATCHING_DIRECTORY) or |
22
b240777ae53e
[svn] Improve the way we check archive contents. If all the entries look like
brett
parents:
20
diff
changeset
|
548 | ((contents == ONE_ENTRY) and |
25
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
549 | options.one_entry_policy.ok_for_match())) |
16
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
brett
parents:
15
diff
changeset
|
550 | can_handle = staticmethod(can_handle) |
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
brett
parents:
15
diff
changeset
|
551 | |
28
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
brett
parents:
27
diff
changeset
|
552 | def organize(self): |
35
957b402d4b90
[svn] Add support for extracting CAB archives. Because the CAB archive I was
brett
parents:
34
diff
changeset
|
553 | source = os.path.join(self.extractor.target, |
957b402d4b90
[svn] Add support for extracting CAB archives. Because the CAB archive I was
brett
parents:
34
diff
changeset
|
554 | os.listdir(self.extractor.target)[0]) |
957b402d4b90
[svn] Add support for extracting CAB archives. Because the CAB archive I was
brett
parents:
34
diff
changeset
|
555 | if os.path.isdir(source): |
957b402d4b90
[svn] Add support for extracting CAB archives. Because the CAB archive I was
brett
parents:
34
diff
changeset
|
556 | checker = DirectoryChecker |
957b402d4b90
[svn] Add support for extracting CAB archives. Because the CAB archive I was
brett
parents:
34
diff
changeset
|
557 | else: |
957b402d4b90
[svn] Add support for extracting CAB archives. Because the CAB archive I was
brett
parents:
34
diff
changeset
|
558 | checker = FilenameChecker |
28
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
brett
parents:
27
diff
changeset
|
559 | if self.options.one_entry_policy == EXTRACT_HERE: |
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
brett
parents:
27
diff
changeset
|
560 | destination = self.extractor.content_name.rstrip('/') |
20
69c93c3e6972
[svn] If the archive contains one directory with the "wrong" name, ask the user
brett
parents:
19
diff
changeset
|
561 | else: |
69c93c3e6972
[svn] If the archive contains one directory with the "wrong" name, ask the user
brett
parents:
19
diff
changeset
|
562 | destination = self.extractor.basename() |
41
e3675644bbb6
[svn] Minor clean-ups. The most important of these is that we now have a better
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parents:
40
diff
changeset
|
563 | self.set_target(destination, checker) |
28
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
brett
parents:
27
diff
changeset
|
564 | if os.path.isdir(self.extractor.target): |
35
957b402d4b90
[svn] Add support for extracting CAB archives. Because the CAB archive I was
brett
parents:
34
diff
changeset
|
565 | os.rename(source, self.target) |
28
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
brett
parents:
27
diff
changeset
|
566 | os.rmdir(self.extractor.target) |
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
brett
parents:
27
diff
changeset
|
567 | else: |
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
brett
parents:
27
diff
changeset
|
568 | os.rename(self.extractor.target, self.target) |
53
cd853ddb224c
[svn] Add interactive option to list recursive archives when found.
brett
parents:
52
diff
changeset
|
569 | self.extractor.included_root = './' |
8
97388f5ff770
[svn] Make ExtractorApplication suck less. Now the strategies for handling
brett
parents:
7
diff
changeset
|
570 | |
97388f5ff770
[svn] Make ExtractorApplication suck less. Now the strategies for handling
brett
parents:
7
diff
changeset
|
571 | |
97388f5ff770
[svn] Make ExtractorApplication suck less. Now the strategies for handling
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parents:
7
diff
changeset
|
572 | class EmptyHandler(object): |
16
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
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parents:
15
diff
changeset
|
573 | def can_handle(contents, options): |
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
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parents:
15
diff
changeset
|
574 | return contents == EMPTY |
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
brett
parents:
15
diff
changeset
|
575 | can_handle = staticmethod(can_handle) |
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
brett
parents:
15
diff
changeset
|
576 | |
28
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
brett
parents:
27
diff
changeset
|
577 | def __init__(self, extractor, options): pass |
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
brett
parents:
27
diff
changeset
|
578 | def handle(self): pass |
8
97388f5ff770
[svn] Make ExtractorApplication suck less. Now the strategies for handling
brett
parents:
7
diff
changeset
|
579 | |
14
6f9e1bb59719
[svn] Add support for just decompressing files that are compressed. So, if you
brett
parents:
13
diff
changeset
|
580 | |
16
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
brett
parents:
15
diff
changeset
|
581 | class BombHandler(BaseHandler): |
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
brett
parents:
15
diff
changeset
|
582 | def can_handle(contents, options): |
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
brett
parents:
15
diff
changeset
|
583 | return True |
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
brett
parents:
15
diff
changeset
|
584 | can_handle = staticmethod(can_handle) |
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
brett
parents:
15
diff
changeset
|
585 | |
28
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
brett
parents:
27
diff
changeset
|
586 | def organize(self): |
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
brett
parents:
27
diff
changeset
|
587 | basename = self.extractor.basename() |
41
e3675644bbb6
[svn] Minor clean-ups. The most important of these is that we now have a better
brett
parents:
40
diff
changeset
|
588 | self.set_target(basename, self.extractor.name_checker) |
28
4d88f2231d33
[svn] Change all the license notices from GPLv2 to GPLv3.
brett
parents:
27
diff
changeset
|
589 | os.rename(self.extractor.target, self.target) |
16
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
brett
parents:
15
diff
changeset
|
590 | |
29794d4d41aa
[svn] There's now an entirely new object hierarchy for handlers, because the
brett
parents:
15
diff
changeset
|
591 | |
25
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
592 | class BasePolicy(object): |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
593 | def __init__(self, options): |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
594 | self.current_policy = None |
26 | 595 | if options.batch: |
596 | self.permanent_policy = self.answers[''] | |
597 | else: | |
598 | self.permanent_policy = None | |
25
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
599 | |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
600 | def ask_question(self, question): |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
601 | question = textwrap.wrap(question) + self.choices |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
602 | while True: |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
603 | print "\n".join(question) |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
604 | try: |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
605 | answer = raw_input(self.prompt) |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
606 | except EOFError: |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
607 | return self.answers[''] |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
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parents:
23
diff
changeset
|
608 | try: |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
609 | return self.answers[answer.lower()] |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
610 | except KeyError: |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
611 | |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
612 | |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
613 | def __cmp__(self, other): |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
614 | return cmp(self.current_policy, other) |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
615 | |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
616 | |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
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parents:
23
diff
changeset
|
617 | class OneEntryPolicy(BasePolicy): |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
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parents:
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diff
changeset
|
618 | answers = {'h': EXTRACT_HERE, 'i': EXTRACT_WRAP, 'r': EXTRACT_RENAME, |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
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diff
changeset
|
619 | '': EXTRACT_WRAP} |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
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diff
changeset
|
620 | choices = ["You can:", |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
changeset
|
621 | " * extract it Inside another directory", |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
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diff
changeset
|
622 | " * extract it and Rename the directory", |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
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parents:
23
diff
changeset
|
623 | " * extract it Here"] |
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
brett
parents:
23
diff
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624 | prompt = "What do you want to do? (I/r/h) " |
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625 | |
26 | 626 | def prep(self, archive_filename, entry_name): |
627 | question = ("%s contains one entry: %s." % | |
628 | (archive_filename, entry_name)) | |
629 | self.current_policy = (self.permanent_policy or | |
630 | self.ask_question(question)) | |
25
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631 | |
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632 | def ok_for_match(self): |
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633 | return self.current_policy in (EXTRACT_RENAME, EXTRACT_HERE) |
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634 | |
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635 | |
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636 | class RecursionPolicy(BasePolicy): |
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637 | answers = {'o': RECURSE_ONCE, 'a': RECURSE_ALWAYS, 'n': RECURSE_NOT_NOW, |
53
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638 | 'v': RECURSE_NEVER, 'l': RECURSE_LIST, '': RECURSE_NOT_NOW} |
25
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639 | choices = ["You can:", |
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640 | " * Always extract included archives", |
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641 | " * extract included archives this Once", |
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642 | " * choose Not to extract included archives", |
53
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643 | " * neVer extract included archives", |
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644 | " * List included archives"] |
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645 | prompt = "What do you want to do? (a/o/N/v/l) " |
25
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646 | |
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647 | def __init__(self, options): |
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648 | BasePolicy.__init__(self, options) |
31
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649 | if options.show_list: |
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650 | self.permanent_policy = RECURSE_NEVER |
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651 | elif options.recursive: |
25
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652 | self.permanent_policy = RECURSE_ALWAYS |
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653 | |
53
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654 | def prep(self, current_filename, target, extractor): |
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655 | archive_count = len(extractor.included_archives) |
25
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656 | if (self.permanent_policy is not None) or (archive_count == 0): |
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657 | self.current_policy = self.permanent_policy or RECURSE_NOT_NOW |
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658 | return |
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659 | elif archive_count > 1: |
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660 | question = ("%s contains %s other archive files." % |
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661 | (current_filename, archive_count)) |
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662 | else: |
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663 | question = ("%s contains another archive: %s." % |
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664 | (current_filename, extractor.included_archives[0])) |
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665 | if target == '.': |
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666 | target = '' |
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667 | included_root = extractor.included_root |
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668 | if included_root == './': |
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669 | included_root = '' |
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670 | while True: |
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671 | self.current_policy = self.ask_question(question) |
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672 | if self.current_policy != RECURSE_LIST: |
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673 | break |
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674 | print ("\n%s\n" % |
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675 | '\n'.join([os.path.join(target, included_root, filename) |
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676 | for filename in extractor.included_archives])) |
25
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677 | if self.current_policy in (RECURSE_ALWAYS, RECURSE_NEVER): |
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678 | self.permanent_policy = self.current_policy |
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679 | |
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680 | def ok_to_recurse(self): |
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681 | return self.current_policy in (RECURSE_ALWAYS, RECURSE_ONCE) |
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682 | |
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683 | |
29
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684 | class ExtractorBuilder(object): |
30
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685 | extractor_map = {'tar': (TarExtractor, None), |
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686 | 'zip': (ZipExtractor, None), |
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687 | 'deb': (DebExtractor, DebMetadataExtractor), |
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688 | 'rpm': (RPMExtractor, None), |
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689 | 'cpio': (CpioExtractor, None), |
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690 | 'gem': (GemExtractor, GemMetadataExtractor), |
32 | 691 | 'compress': (CompressionExtractor, None), |
35
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692 | '7z': (SevenExtractor, None), |
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693 | 'cab': (CABExtractor, None)} |
30
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694 | |
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695 | mimetype_map = {} |
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|
696 | for mapping in (('tar', 'x-tar'), |
59
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697 | ('zip', 'zip'), |
30
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698 | ('deb', 'x-debian-package'), |
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|
699 | ('rpm', 'x-redhat-package-manager', 'x-rpm'), |
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|
700 | ('cpio', 'x-cpio'), |
32 | 701 | ('gem', 'x-ruby-gem'), |
35
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702 | ('7z', 'x-7z-compressed'), |
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|
703 | ('cab', 'x-cab')): |
30
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|
704 | for mimetype in mapping[1:]: |
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705 | if '/' not in mimetype: |
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|
706 | mimetype = 'application/' + mimetype |
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|
707 | mimetype_map[mimetype] = mapping[0] |
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|
708 | |
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|
709 | magic_mime_map = {} |
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|
710 | for mapping in (('deb', 'Debian binary package'), |
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|
711 | ('cpio', 'cpio archive'), |
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|
712 | ('tar', 'POSIX tar archive'), |
59
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|
713 | ('zip', '(Zip|ZIP self-extracting) archive'), |
32 | 714 | ('rpm', 'RPM'), |
35
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|
715 | ('7z', '7-zip archive'), |
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|
716 | ('cab', 'Microsoft Cabinet archive')): |
30
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|
717 | for pattern in mapping[1:]: |
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|
718 | magic_mime_map[re.compile(pattern)] = mapping[0] |
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|
719 | |
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|
720 | magic_encoding_map = {} |
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|
721 | for mapping in (('bzip2', 'bzip2 compressed'), |
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|
722 | ('gzip', 'gzip compressed')): |
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|
723 | for pattern in mapping[1:]: |
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|
724 | magic_encoding_map[re.compile(pattern)] = mapping[0] |
29
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725 | |
31
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|
726 | extension_map = {} |
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727 | for mapping in (('tar', 'bzip2', 'tar.bz2'), |
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728 | ('tar', 'gzip', 'tar.gz', 'tgz'), |
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|
729 | ('tar', None, 'tar'), |
59
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730 | ('zip', None, 'zip'), |
31
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731 | ('deb', None, 'deb'), |
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732 | ('rpm', None, 'rpm'), |
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733 | ('cpio', None, 'cpio'), |
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734 | ('gem', None, 'gem'), |
35
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735 | ('compress', 'gzip', 'Z', 'gz'), |
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736 | ('compress', 'bzip2', 'bz2'), |
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737 | ('compress', 'lzma', 'lzma'), |
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738 | ('7z', None, '7z'), |
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|
739 | ('cab', None, 'cab', 'exe')): |
31
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|
740 | for extension in mapping[2:]: |
35
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|
741 | extension_map.setdefault(extension, []).append(mapping[:2]) |
31
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|
742 | |
29
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|
743 | def __init__(self, filename, options): |
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744 | self.filename = filename |
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745 | self.options = options |
30
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746 | |
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747 | def build_extractor(self, archive_type, encoding): |
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|
748 | extractors = self.extractor_map[archive_type] |
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|
749 | if self.options.metadata and (extractors[1] is not None): |
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|
750 | extractor = extractors[1] |
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|
751 | else: |
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752 | extractor = extractors[0] |
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753 | return extractor(self.filename, encoding) |
29
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754 | |
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755 | def get_extractor(self): |
48 | 756 | tried_types = set() |
36
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757 | # As smart as it is, the magic test can't go first, because at least |
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758 | # on my system it just recognizes gem files as tar files. I guess |
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759 | # it's possible for the opposite problem to occur -- where the mimetype |
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760 | # or extension suggests something less than ideal -- but it seems less |
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761 | # likely so I'm sticking with this. |
31
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762 | for func_name in ('mimetype', 'extension', 'magic'): |
35
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763 | logger.debug("getting extractors by %s" % (func_name,)) |
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764 | extractor_types = \ |
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765 | getattr(self, 'try_by_' + func_name)(self.filename) |
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766 | logger.debug("done getting extractors") |
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767 | for ext_args in extractor_types: |
36
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768 | if ext_args in tried_types: |
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769 | continue |
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770 | tried_types.add(ext_args) |
35
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771 | logger.debug("trying %s extractor from %s" % |
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772 | (ext_args, func_name)) |
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773 | yield self.build_extractor(*ext_args) |
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774 | |
31
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775 | def try_by_mimetype(cls, filename): |
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776 | mimetype, encoding = mimetypes.guess_type(filename) |
29
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777 | try: |
35
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778 | return [(cls.mimetype_map[mimetype], encoding)] |
29
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779 | except KeyError: |
30
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780 | if encoding: |
35
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781 | return [('compress', encoding)] |
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782 | return [] |
31
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783 | try_by_mimetype = classmethod(try_by_mimetype) |
30
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784 | |
35
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785 | def magic_map_matches(cls, output, magic_map): |
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786 | return [result for regexp, result in magic_map.items() |
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787 | if regexp.search(output)] |
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788 | magic_map_matches = classmethod(magic_map_matches) |
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789 | |
31
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790 | def try_by_magic(cls, filename): |
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791 | process = subprocess.Popen(['file', '-z', filename], |
30
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792 | stdout=subprocess.PIPE) |
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793 | status = process.wait() |
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794 | if status != 0: |
35
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795 | return [] |
30
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796 | output = process.stdout.readline() |
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797 | process.stdout.close() |
31
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798 | if output.startswith('%s: ' % filename): |
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799 | output = output[len(filename) + 2:] |
35
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800 | mimes = cls.magic_map_matches(output, cls.magic_mime_map) |
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801 | encodings = cls.magic_map_matches(output, cls.magic_encoding_map) |
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802 | if mimes and not encodings: |
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803 | encodings = [None] |
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804 | elif encodings and not mimes: |
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805 | mimes = ['compress'] |
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806 | return [(m, e) for m in mimes for e in encodings] |
31
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807 | try_by_magic = classmethod(try_by_magic) |
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808 | |
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809 | def try_by_extension(cls, filename): |
43
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810 | parts = filename.split('.')[-2:] |
35
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|
811 | results = [] |
31
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812 | while parts: |
35
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813 | results.extend(cls.extension_map.get('.'.join(parts), [])) |
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814 | del parts[0] |
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|
815 | return results |
31
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816 | try_by_extension = classmethod(try_by_extension) |
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817 | |
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|
818 | |
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819 | class BaseAction(object): |
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820 | def __init__(self, options, filenames): |
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821 | self.options = options |
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822 | self.filenames = filenames |
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823 | self.target = None |
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824 | |
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825 | def report(self, function, *args): |
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|
826 | try: |
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|
827 | error = function(*args) |
45
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|
828 | except EXTRACTION_ERRORS, exception: |
31
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|
829 | error = str(exception) |
33
3547e3124729
[svn] Fix some bugs and make things a little more user-friendly now that we can
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830 | logger.debug(''.join(traceback.format_exception(*sys.exc_info()))) |
39
027fcd7ae002
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diff
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831 | return error |
31
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832 | |
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|
833 | |
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834 | class ExtractionAction(BaseAction): |
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835 | handlers = [FlatHandler, OverwriteHandler, MatchHandler, EmptyHandler, |
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836 | BombHandler] |
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|
837 | |
52
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838 | def __init__(self, options, filenames): |
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839 | BaseAction.__init__(self, options, filenames) |
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840 | self.did_print = False |
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|
841 | |
31
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842 | def get_handler(self, extractor): |
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843 | if extractor.content_type == ONE_ENTRY: |
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844 | self.options.one_entry_policy.prep(self.current_filename, |
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845 | extractor.content_name) |
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846 | for handler in self.handlers: |
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847 | if handler.can_handle(extractor.content_type, self.options): |
35
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848 | logger.debug("using %s handler" % (handler.__name__,)) |
31
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849 | self.current_handler = handler(extractor, self.options) |
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850 | break |
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|
851 | |
52
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852 | def show_extraction(self, extractor): |
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|
853 | if self.options.log_level > logging.INFO: |
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854 | return |
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|
855 | elif self.did_print: |
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856 | |
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857 | else: |
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858 | self.did_print = True |
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|
859 | print "%s:" % (self.current_filename,) |
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860 | if extractor.contents is None: |
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861 | print self.current_handler.target |
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862 | return |
55
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|
863 | def reverser(x, y): |
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864 | return cmp(y, x) |
52
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865 | if self.current_handler.target == '.': |
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866 | filenames = extractor.contents |
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|
867 | filenames.sort(reverser) |
52
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868 | else: |
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869 | filenames = [self.current_handler.target] |
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|
870 | pathjoin = os.path.join |
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871 | isdir = os.path.isdir |
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872 | while filenames: |
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873 | filename = filenames.pop() |
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874 | if isdir(filename): |
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875 | print "%s/" % (filename,) |
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876 | new_filenames = os.listdir(filename) |
55
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877 | new_filenames.sort(reverser) |
52
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878 | filenames.extend([pathjoin(filename, new_filename) |
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879 | for new_filename in new_filenames]) |
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880 | else: |
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881 | print filename |
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882 | |
31
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diff
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883 | def run(self, filename, extractor): |
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diff
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884 | self.current_filename = filename |
39
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diff
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885 | error = (self.report(extractor.extract) or |
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886 | self.report(self.get_handler, extractor) or |
52
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887 | self.report(self.current_handler.handle) or |
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888 | self.report(self.show_extraction, extractor)) |
39
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diff
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889 | if not error: |
31
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890 | self.target = self.current_handler.target |
39
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891 | return error |
31
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892 | |
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diff
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|
893 | |
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diff
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|
894 | class ListAction(BaseAction): |
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diff
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895 | def __init__(self, options, filenames): |
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diff
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896 | BaseAction.__init__(self, options, filenames) |
45
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diff
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897 | self.count = 0 |
31
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898 | |
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diff
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899 | def get_list(self, extractor): |
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diff
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900 | # Note: The reason I'm getting all the filenames up front is |
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diff
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901 | # because if we run into trouble partway through the archive, we'll |
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diff
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902 | # try another extractor. So before we display anything we have to |
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diff
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903 | # be sure this one is successful. We maybe don't have to be quite |
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[svn] Refactor actions (extract the archive, vs. list the contents) into their
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diff
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|
904 | # this conservative but this is the easy way out for now. |
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diff
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|
905 | self.filelist = list(extractor.get_filenames()) |
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diff
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|
906 | |
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diff
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|
907 | def show_list(self, filename): |
45
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diff
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|
908 | self.count += 1 |
31
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diff
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909 | if len(self.filenames) != 1: |
45
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diff
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|
910 | if self.count > 1: |
31
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diff
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|
911 | |
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diff
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|
912 | print "%s:" % (filename,) |
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diff
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|
913 | print '\n'.join(self.filelist) |
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[svn] Refactor actions (extract the archive, vs. list the contents) into their
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diff
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|
914 | |
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diff
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|
915 | def run(self, filename, extractor): |
39
027fcd7ae002
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diff
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|
916 | return (self.report(self.get_list, extractor) or |
31
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diff
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|
917 | self.report(self.show_list, filename)) |
29
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diff
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|
918 | |
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diff
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|
919 | |
5 | 920 | class ExtractorApplication(object): |
921 | def __init__(self, arguments): | |
48 | 922 | for signal_num in (signal.SIGINT, signal.SIGTERM): |
923 | signal.signal(signal_num, self.abort) | |
6
77043f4e6a9f
[svn] The big thing here is recursive extraction. Find archive files in the
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diff
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|
924 | self.parse_options(arguments) |
12
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diff
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|
925 | self.setup_logger() |
5 | 926 | self.successes = [] |
927 | self.failures = [] | |
928 | ||
48 | 929 | def abort(self, signal_num, frame): |
930 | signal.signal(signal_num, signal.SIG_IGN) | |
931 | ||
49 | 932 | logger.debug("traceback:\n" + |
933 | ''.join(traceback.format_stack(frame)).rstrip()) | |
48 | 934 | logger.debug("got signal %s; cleaning up" % (signal_num,)) |
935 | clean_targets = set([os.path.realpath('.')]) | |
936 | if hasattr(self, 'current_directory'): | |
937 | clean_targets.add(os.path.realpath(self.current_directory)) | |
938 | for directory in clean_targets: | |
939 | os.chdir(directory) | |
940 | for path in glob.glob('.dtrx-*'): | |
941 | try: | |
942 | os.unlink(path) | |
943 | except OSError, error: | |
944 | if error.errno == errno.EISDIR: | |
945 | shutil.rmtree(path, ignore_errors=True) | |
946 | sys.exit(1) | |
947 | ||
6
77043f4e6a9f
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diff
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|
948 | def parse_options(self, arguments): |
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|
949 | parser = optparse.OptionParser( |
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|
950 | usage="%prog [options] archive [archive2 ...]", |
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diff
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|
951 | description="Intelligent archive extractor", |
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diff
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|
952 | version=VERSION_BANNER |
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diff
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|
953 | ) |
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diff
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|
954 | parser.add_option('-r', '--recursive', dest='recursive', |
77043f4e6a9f
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diff
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|
955 | action='store_true', default=False, |
77043f4e6a9f
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|
956 | help='extract archives contained in the ones listed') |
13
0a3ef1b9f6d4
[svn] Add options to tweak the logging level to taste.
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diff
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|
957 | parser.add_option('-q', '--quiet', dest='quiet', |
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diff
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|
958 | action='count', default=3, |
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diff
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|
959 | help='suppress warning/error messages') |
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|
960 | parser.add_option('-v', '--verbose', dest='verbose', |
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diff
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|
961 | action='count', default=0, |
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diff
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|
962 | help='be verbose/print debugging information') |
14
6f9e1bb59719
[svn] Add support for just decompressing files that are compressed. So, if you
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diff
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|
963 | parser.add_option('-o', '--overwrite', dest='overwrite', |
6f9e1bb59719
[svn] Add support for just decompressing files that are compressed. So, if you
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diff
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|
964 | action='store_true', default=False, |
6f9e1bb59719
[svn] Add support for just decompressing files that are compressed. So, if you
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diff
changeset
|
965 | help='overwrite any existing target directory') |
15
28dbd52a8bb8
[svn] Add a -f/--flat option, which will extract the archive contents into the
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diff
changeset
|
966 | parser.add_option('-f', '--flat', '--no-directory', dest='flat', |
28dbd52a8bb8
[svn] Add a -f/--flat option, which will extract the archive contents into the
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diff
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|
967 | action='store_true', default=False, |
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diff
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|
968 | help="don't put contents in their own directory") |
19 | 969 | parser.add_option('-l', '-t', '--list', '--table', dest='show_list', |
970 | action='store_true', default=False, | |
971 | help="list contents of archives on standard output") | |
20
69c93c3e6972
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diff
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|
972 | parser.add_option('-n', '--noninteractive', dest='batch', |
69c93c3e6972
[svn] If the archive contains one directory with the "wrong" name, ask the user
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diff
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|
973 | action='store_true', default=False, |
69c93c3e6972
[svn] If the archive contains one directory with the "wrong" name, ask the user
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diff
changeset
|
974 | help="don't ask how to handle special cases") |
29
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diff
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|
975 | parser.add_option('-m', '--metadata', dest='metadata', |
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diff
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|
976 | action='store_true', default=False, |
35
957b402d4b90
[svn] Add support for extracting CAB archives. Because the CAB archive I was
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diff
changeset
|
977 | help="extract metadata from a .deb/.gem") |
6
77043f4e6a9f
[svn] The big thing here is recursive extraction. Find archive files in the
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parents:
5
diff
changeset
|
978 | self.options, filenames = parser.parse_args(arguments) |
77043f4e6a9f
[svn] The big thing here is recursive extraction. Find archive files in the
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diff
changeset
|
979 | if not filenames: |
77043f4e6a9f
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|
980 | parser.error("you did not list any archives") |
52
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diff
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|
981 | # This makes WARNING is the default. |
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diff
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|
982 | self.options.log_level = (10 * (self.options.quiet - |
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diff
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|
983 | self.options.verbose)) |
25
ef62f2f55eb8
[svn] Move policy-handling code into a dedicated set of classes. This makes
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diff
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|
984 | self.options.one_entry_policy = OneEntryPolicy(self.options) |
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diff
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|
985 | self.options.recursion_policy = RecursionPolicy(self.options) |
6
77043f4e6a9f
[svn] The big thing here is recursive extraction. Find archive files in the
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diff
changeset
|
986 | self.archives = {os.path.realpath(os.curdir): filenames} |
77043f4e6a9f
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diff
changeset
|
987 | |
12
5d202467c589
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diff
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|
988 | def setup_logger(self): |
52
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|
989 | logging.getLogger().setLevel(self.options.log_level) |
12
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|
990 | handler = logging.StreamHandler() |
52
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|
991 | handler.setLevel(self.options.log_level) |
19 | 992 | formatter = logging.Formatter("dtrx: %(levelname)s: %(message)s") |
12
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993 | handler.setFormatter(formatter) |
31
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|
994 | logger.addHandler(handler) |
33
3547e3124729
[svn] Fix some bugs and make things a little more user-friendly now that we can
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|
995 | logger.debug("logger is set up") |
1 | 996 | |
31
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|
997 | def recurse(self, filename, extractor, action): |
53
cd853ddb224c
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diff
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|
998 | self.options.recursion_policy.prep(filename, action.target, extractor) |
25
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diff
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999 | if self.options.recursion_policy.ok_to_recurse(): |
53
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1000 | for filename in extractor.included_archives: |
25
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|
1001 | tail_path, basename = os.path.split(filename) |
47 | 1002 | directory = os.path.join(self.current_directory, action.target, |
1003 | extractor.included_root, tail_path) | |
25
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1004 | self.archives.setdefault(directory, []).append(basename) |
8
97388f5ff770
[svn] Make ExtractorApplication suck less. Now the strategies for handling
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|
1005 | |
39
027fcd7ae002
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diff
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1006 | def check_file(self, filename): |
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|
1007 | try: |
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|
1008 | result = os.stat(filename) |
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|
1009 | except OSError, error: |
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|
1010 | return error.strerror |
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|
1011 | if stat.S_ISDIR(result.st_mode): |
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|
1012 | return "cannot extract a directory" |
027fcd7ae002
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|
1013 | |
027fcd7ae002
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|
1014 | def try_extractors(self, filename, builder): |
45
37d555407334
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|
1015 | errors = [] |
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1016 | for extractor in builder: |
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1017 | error = self.action.run(filename, extractor) |
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1018 | if error: |
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1019 | errors.append((extractor.file_type, extractor.encoding, error)) |
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1020 | else: |
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1021 | self.recurse(filename, extractor, self.action) |
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1022 | return |
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1023 | logger.error("could not handle %s" % (filename,)) |
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1024 | if not errors: |
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1025 | logger.error("not a known archive type") |
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1026 | return True |
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1027 | for file_type, encoding, error in errors: |
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1028 | message = ["treating as", file_type, "failed:", error] |
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1029 | if encoding: |
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1030 | message.insert(1, "%s-encoded" % (encoding,)) |
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1031 | logger.error(' '.join(message)) |
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1032 | return True |
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1033 | |
19 | 1034 | def run(self): |
1035 | if self.options.show_list: | |
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1036 | action = ListAction |
19 | 1037 | else: |
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1038 | action = ExtractionAction |
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1039 | self.action = action(self.options, self.archives.values()[0]) |
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1040 | while self.archives: |
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1041 | self.current_directory, self.filenames = self.archives.popitem() |
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1042 | os.chdir(self.current_directory) |
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1043 | for filename in self.filenames: |
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1044 | builder = ExtractorBuilder(filename, self.options) |
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1045 | error = (self.check_file(filename) or |
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1046 | self.try_extractors(filename, builder.get_extractor())) |
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1047 | if error: |
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1048 | if error != True: |
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1049 | logger.error("%s: %s" % (filename, error)) |
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1050 | self.failures.append(filename) |
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1051 | else: |
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1052 | self.successes.append(filename) |
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1053 | self.options.one_entry_policy.permanent_policy = EXTRACT_WRAP |
5 | 1054 | if self.failures: |
1055 | return 1 | |
1056 | return 0 | |
1057 | ||
1 | 1058 | |
1059 | if __name__ == '__main__': | |
5 | 1060 | app = ExtractorApplication(sys.argv[1:]) |
1061 | sys.exit(app.run()) |