Mercurial > hg > mercurial-crew-with-dirclash

annotate mercurial/archival.py @ 5456:a58d415b272e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fix typo
author Benoit Boissinot <benoit.boissinot@ens-lyon.org>
date Thu, 11 Oct 2007 16:28:30 +0200
parents 667290b6c95e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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 i18n import _
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9 from node import *
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10 import cStringIO, os, stat, tarfile, time, util, zipfile
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11 import zlib, gzip
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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 class GzipFileWithTime(gzip.GzipFile):
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41
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42 def __init__(self, *args, **kw):
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43 timestamp = None
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44 if 'timestamp' in kw:
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45 timestamp = kw.pop('timestamp')
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46 if timestamp == None:
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47 self.timestamp = time.time()
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48 else:
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49 self.timestamp = timestamp
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50 gzip.GzipFile.__init__(self, *args, **kw)
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51
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52 def _write_gzip_header(self):
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53 self.fileobj.write('\037\213') # magic header
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54 self.fileobj.write('\010') # compression method
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55 fname = self.filename[:-3]
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56 flags = 0
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57 if fname:
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58 flags = gzip.FNAME
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59 self.fileobj.write(chr(flags))
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60 gzip.write32u(self.fileobj, long(self.timestamp))
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61 self.fileobj.write('\002')
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62 self.fileobj.write('\377')
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63 if fname:
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64 self.fileobj.write(fname + '\000')
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65
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66 def __init__(self, dest, prefix, mtime, kind=''):
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67 self.prefix = tidyprefix(dest, prefix, ['.tar', '.tar.bz2', '.tar.gz',
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68 '.tgz', '.tbz2'])
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69 self.mtime = mtime
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70
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71 def taropen(name, mode, fileobj=None):
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72 if kind == 'gz':
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73 mode = mode[0]
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74 if not fileobj:
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75 fileobj = open(name, mode + 'b')
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76 gzfileobj = self.GzipFileWithTime(name, mode + 'b',
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77 zlib.Z_BEST_COMPRESSION,
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78 fileobj, timestamp=mtime)
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79 return tarfile.TarFile.taropen(name, mode, gzfileobj)
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80 else:
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81 return tarfile.open(name, mode + kind, fileobj)
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82
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83 if isinstance(dest, str):
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84 self.z = taropen(dest, mode='w:')
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85 else:
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86 # Python 2.5-2.5.1 have a regression that requires a name arg
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87 self.z = taropen(name='', mode='w|', fileobj=dest)
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88
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89 def addfile(self, name, mode, islink, data):
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90 i = tarfile.TarInfo(self.prefix + name)
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91 i.mtime = self.mtime
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92 i.size = len(data)
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93 if islink:
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94 i.type = tarfile.SYMTYPE
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95 i.mode = 0777
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96 i.linkname = data
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97 data = None
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98 else:
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99 i.mode = mode
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100 data = cStringIO.StringIO(data)
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101 self.z.addfile(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 tellable:
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107 '''provide tell method for zipfile.ZipFile when writing to http
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108 response file object.'''
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109
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110 def __init__(self, fp):
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111 self.fp = fp
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112 self.offset = 0
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113
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114 def __getattr__(self, key):
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115 return getattr(self.fp, key)
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116
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117 def write(self, s):
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118 self.fp.write(s)
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119 self.offset += len(s)
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120
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121 def tell(self):
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122 return self.offset
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123
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124 class zipit:
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125 '''write archive to zip file or stream. can write uncompressed,
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126 or compressed with deflate.'''
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127
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128 def __init__(self, dest, prefix, mtime, compress=True):
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129 self.prefix = tidyprefix(dest, prefix, ('.zip',))
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130 if not isinstance(dest, str):
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131 try:
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132 dest.tell()
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133 except (AttributeError, IOError):
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134 dest = tellable(dest)
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135 self.z = zipfile.ZipFile(dest, 'w',
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136 compress and zipfile.ZIP_DEFLATED or
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137 zipfile.ZIP_STORED)
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138 self.date_time = time.gmtime(mtime)[:6]
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139
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140 def addfile(self, name, mode, islink, data):
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141 i = zipfile.ZipInfo(self.prefix + name, self.date_time)
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142 i.compress_type = self.z.compression
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143 # unzip will not honor unix file modes unless file creator is
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144 # set to unix (id 3).
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145 i.create_system = 3
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146 ftype = stat.S_IFREG
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147 if islink:
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148 mode = 0777
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149 ftype = stat.S_IFLNK
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150 i.external_attr = (mode | ftype) << 16L
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151 self.z.writestr(i, data)
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152
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153 def done(self):
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154 self.z.close()
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155
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156 class fileit:
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157 '''write archive as files in directory.'''
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158
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159 def __init__(self, name, prefix, mtime):
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160 if prefix:
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161 raise util.Abort(_('cannot give prefix when archiving to files'))
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162 self.basedir = name
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163 self.opener = util.opener(self.basedir)
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164
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165 def addfile(self, name, mode, islink, data):
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166 if islink:
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167 self.opener.symlink(data, name)
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168 return
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169 f = self.opener(name, "w", atomictemp=True)
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170 f.write(data)
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171 f.rename()
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172 destfile = os.path.join(self.basedir, name)
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173 os.chmod(destfile, mode)
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174
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175 def done(self):
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176 pass
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177
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178 archivers = {
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179 'files': fileit,
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180 'tar': tarit,
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181 'tbz2': lambda name, prefix, mtime: tarit(name, prefix, mtime, 'bz2'),
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182 'tgz': lambda name, prefix, mtime: tarit(name, prefix, mtime, 'gz'),
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183 'uzip': lambda name, prefix, mtime: zipit(name, prefix, mtime, False),
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184 'zip': zipit,
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185 }
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186
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187 def archive(repo, dest, node, kind, decode=True, matchfn=None,
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188 prefix=None, mtime=None):
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189 '''create archive of repo as it was at node.
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190
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191 dest can be name of directory, name of archive file, or file
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192 object to write archive to.
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193
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194 kind is type of archive to create.
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195
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196 decode tells whether to put files through decode filters from
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197 hgrc.
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198
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199 matchfn is function to filter names of files to write to archive.
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200
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201 prefix is name of path to put before every archive member.'''
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202
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203 def write(name, mode, islink, getdata):
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204 if matchfn and not matchfn(name): return
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205 data = getdata()
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206 if decode:
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207 data = repo.wwritedata(name, data)
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208 archiver.addfile(name, mode, islink, data)
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209
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210 ctx = repo.changectx(node)
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211 archiver = archivers[kind](dest, prefix, mtime or ctx.date()[0])
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212 m = ctx.manifest()
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213 items = m.items()
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214 items.sort()
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215 write('.hg_archival.txt', 0644, False,
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216 lambda: 'repo: %s\nnode: %s\n' % (hex(repo.changelog.node(0)), hex(node)))
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217 for filename, filenode in items:
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218 write(filename, m.execf(filename) and 0755 or 0644, m.linkf(filename),
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219 lambda: repo.file(filename).read(filenode))
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220 archiver.done()