Mercurial > hg > mercurial-crew-with-dirclash
annotate mercurial/archival.py @ 2594:bdf9d809467c
add missed tests for diff -b/-B
author | Vadim Gelfer <vadim.gelfer@gmail.com> |
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date | Tue, 11 Jul 2006 15:51:16 -0700 |
parents | 857591c586e0 |
children | e196aa1df169 |
rev | line source |
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1 # archival.py - revision archival for mercurial |
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2 # |
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3 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of |
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6 # the GNU General Public License, incorporated herein by reference. |
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7 |
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8 from demandload import * |
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9 from i18n import gettext as _ |
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10 from node import * |
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11 demandload(globals(), 'cStringIO os stat tarfile time util zipfile') |
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12 |
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13 def tidyprefix(dest, prefix, suffixes): |
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14 '''choose prefix to use for names in archive. make sure prefix is |
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15 safe for consumers.''' |
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16 |
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17 if prefix: |
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18 prefix = prefix.replace('\\', '/') |
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19 else: |
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20 if not isinstance(dest, str): |
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21 raise ValueError('dest must be string if no prefix') |
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22 prefix = os.path.basename(dest) |
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23 lower = prefix.lower() |
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24 for sfx in suffixes: |
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25 if lower.endswith(sfx): |
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26 prefix = prefix[:-len(sfx)] |
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27 break |
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28 lpfx = os.path.normpath(util.localpath(prefix)) |
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29 prefix = util.pconvert(lpfx) |
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30 if not prefix.endswith('/'): |
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31 prefix += '/' |
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32 if prefix.startswith('../') or os.path.isabs(lpfx) or '/../' in prefix: |
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33 raise util.Abort(_('archive prefix contains illegal components')) |
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34 return prefix |
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35 |
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36 class tarit: |
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37 '''write archive to tar file or stream. can write uncompressed, |
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38 or compress with gzip or bzip2.''' |
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39 |
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40 def __init__(self, dest, prefix, mtime, kind=''): |
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41 self.prefix = tidyprefix(dest, prefix, ['.tar', '.tar.bz2', '.tar.gz', |
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42 '.tgz', 'tbz2']) |
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43 self.mtime = mtime |
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44 if isinstance(dest, str): |
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45 self.z = tarfile.open(dest, mode='w:'+kind) |
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46 else: |
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47 self.z = tarfile.open(mode='w|'+kind, fileobj=dest) |
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48 |
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49 def addfile(self, name, mode, data): |
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50 i = tarfile.TarInfo(self.prefix + name) |
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51 i.mtime = self.mtime |
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52 i.size = len(data) |
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53 i.mode = mode |
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54 self.z.addfile(i, cStringIO.StringIO(data)) |
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55 |
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56 def done(self): |
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57 self.z.close() |
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58 |
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59 class tellable: |
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60 '''provide tell method for zipfile.ZipFile when writing to http |
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61 response file object.''' |
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62 |
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63 def __init__(self, fp): |
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64 self.fp = fp |
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65 self.offset = 0 |
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66 |
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67 def __getattr__(self, key): |
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68 return getattr(self.fp, key) |
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69 |
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70 def write(self, s): |
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71 self.fp.write(s) |
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72 self.offset += len(s) |
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73 |
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74 def tell(self): |
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75 return self.offset |
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76 |
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77 class zipit: |
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78 '''write archive to zip file or stream. can write uncompressed, |
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79 or compressed with deflate.''' |
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80 |
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81 def __init__(self, dest, prefix, mtime, compress=True): |
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82 self.prefix = tidyprefix(dest, prefix, ('.zip',)) |
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83 if not isinstance(dest, str): |
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84 try: |
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85 dest.tell() |
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86 except (AttributeError, IOError): |
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87 dest = tellable(dest) |
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88 self.z = zipfile.ZipFile(dest, 'w', |
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89 compress and zipfile.ZIP_DEFLATED or |
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90 zipfile.ZIP_STORED) |
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91 self.date_time = time.gmtime(mtime)[:6] |
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92 |
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93 def addfile(self, name, mode, data): |
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94 i = zipfile.ZipInfo(self.prefix + name, self.date_time) |
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95 i.compress_type = self.z.compression |
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96 i.flag_bits = 0x08 |
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97 # unzip will not honor unix file modes unless file creator is |
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98 # set to unix (id 3). |
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99 i.create_system = 3 |
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100 i.external_attr = (mode | stat.S_IFREG) << 16L |
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101 self.z.writestr(i, data) |
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102 |
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103 def done(self): |
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104 self.z.close() |
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105 |
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106 class fileit: |
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107 '''write archive as files in directory.''' |
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108 |
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109 def __init__(self, name, prefix, mtime): |
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110 if prefix: |
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111 raise util.Abort(_('cannot give prefix when archiving to files')) |
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112 self.basedir = name |
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113 self.dirs = {} |
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114 self.oflags = (os.O_CREAT | os.O_EXCL | os.O_WRONLY | |
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115 getattr(os, 'O_BINARY', 0) | |
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116 getattr(os, 'O_NOFOLLOW', 0)) |
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117 |
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118 def addfile(self, name, mode, data): |
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119 destfile = os.path.join(self.basedir, name) |
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120 destdir = os.path.dirname(destfile) |
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121 if destdir not in self.dirs: |
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122 if not os.path.isdir(destdir): |
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123 os.makedirs(destdir) |
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124 self.dirs[destdir] = 1 |
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125 os.fdopen(os.open(destfile, self.oflags, mode), 'wb').write(data) |
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126 |
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127 def done(self): |
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128 pass |
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129 |
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130 archivers = { |
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131 'files': fileit, |
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132 'tar': tarit, |
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133 'tbz2': lambda name, prefix, mtime: tarit(name, prefix, mtime, 'bz2'), |
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134 'tgz': lambda name, prefix, mtime: tarit(name, prefix, mtime, 'gz'), |
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135 'uzip': lambda name, prefix, mtime: zipit(name, prefix, mtime, False), |
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136 'zip': zipit, |
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137 } |
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138 |
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139 def archive(repo, dest, node, kind, decode=True, matchfn=None, |
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140 prefix=None, mtime=None): |
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141 '''create archive of repo as it was at node. |
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142 |
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143 dest can be name of directory, name of archive file, or file |
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144 object to write archive to. |
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145 |
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146 kind is type of archive to create. |
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147 |
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148 decode tells whether to put files through decode filters from |
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149 hgrc. |
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150 |
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151 matchfn is function to filter names of files to write to archive. |
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152 |
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153 prefix is name of path to put before every archive member.''' |
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154 |
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155 def write(name, mode, data): |
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156 if matchfn and not matchfn(name): return |
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157 if decode: |
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158 fp = cStringIO.StringIO() |
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159 repo.wwrite(name, data, fp) |
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160 data = fp.getvalue() |
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161 archiver.addfile(name, mode, data) |
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162 |
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163 change = repo.changelog.read(node) |
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164 mn = change[0] |
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165 archiver = archivers[kind](dest, prefix, mtime or change[2][0]) |
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166 mf = repo.manifest.read(mn).items() |
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167 mff = repo.manifest.readflags(mn) |
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168 mf.sort() |
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169 write('.hg_archival.txt', 0644, |
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170 'repo: %s\nnode: %s\n' % (hex(repo.changelog.node(0)), hex(node))) |
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171 for filename, filenode in mf: |
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172 write(filename, mff[filename] and 0755 or 0644, |
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173 repo.file(filename).read(filenode)) |
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174 archiver.done() |