Mercurial > public > mercurial-scm > hg

annotate mercurial/archival.py @ 13102:2956945c3bee stable

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archival: don't set gzip filename header when there's no filename This mainly affects hgweb, which can generate tar.gz archives without filenames. Without this change, the header would be set to ".gz", which can confuse Safari into extracting the file and renaming it to "gz" when "Open 'safe' files after downloading" is enabled. file(1) before: hg-crew-5e51254ad4d4.tar.gz: gzip compressed data, was ".gz", last modified: Thu Dec 2 11:46:20 2010, max compression after: hg-crew-5e51254ad4d4.tar.gz: gzip compressed data, last modified: Thu Dec 2 11:46:20 2010, max compression
author Brodie Rao <brodie@bitheap.org>
date Tue, 07 Dec 2010 19:47:53 +1100
parents f00953d9533c
children 5dac0d04b838
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 the
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6 # GNU General Public License version 2 or any later version.
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7
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8 from i18n import _
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9 from node import hex
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10 import cmdutil
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11 import util
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12 import cStringIO, os, stat, tarfile, time, zipfile
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13 import zlib, gzip
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14
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15 def tidyprefix(dest, kind, prefix):
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16 '''choose prefix to use for names in archive. make sure prefix is
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17 safe for consumers.'''
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18
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19 if prefix:
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20 prefix = util.normpath(prefix)
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21 else:
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22 if not isinstance(dest, str):
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23 raise ValueError('dest must be string if no prefix')
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24 prefix = os.path.basename(dest)
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25 lower = prefix.lower()
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26 for sfx in exts.get(kind, []):
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27 if lower.endswith(sfx):
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28 prefix = prefix[:-len(sfx)]
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29 break
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30 lpfx = os.path.normpath(util.localpath(prefix))
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31 prefix = util.pconvert(lpfx)
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32 if not prefix.endswith('/'):
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33 prefix += '/'
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34 if prefix.startswith('../') or os.path.isabs(lpfx) or '/../' in prefix:
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35 raise util.Abort(_('archive prefix contains illegal components'))
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36 return prefix
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37
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38 exts = {
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39 'tar': ['.tar'],
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40 'tbz2': ['.tbz2', '.tar.bz2'],
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41 'tgz': ['.tgz', '.tar.gz'],
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42 'zip': ['.zip'],
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43 }
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44
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45 def guesskind(dest):
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46 for kind, extensions in exts.iteritems():
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47 if util.any(dest.endswith(ext) for ext in extensions):
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48 return kind
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49 return None
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50
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51
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52 class tarit(object):
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53 '''write archive to tar file or stream. can write uncompressed,
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54 or compress with gzip or bzip2.'''
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55
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56 class GzipFileWithTime(gzip.GzipFile):
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57
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58 def __init__(self, *args, **kw):
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59 timestamp = None
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60 if 'timestamp' in kw:
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61 timestamp = kw.pop('timestamp')
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62 if timestamp is None:
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63 self.timestamp = time.time()
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64 else:
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65 self.timestamp = timestamp
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66 gzip.GzipFile.__init__(self, *args, **kw)
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67
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68 def _write_gzip_header(self):
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69 self.fileobj.write('\037\213') # magic header
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70 self.fileobj.write('\010') # compression method
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71 # Python 2.6 deprecates self.filename
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72 fname = getattr(self, 'name', None) or self.filename
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73 if fname and fname.endswith('.gz'):
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74 fname = fname[:-3]
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75 flags = 0
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76 if fname:
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77 flags = gzip.FNAME
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78 self.fileobj.write(chr(flags))
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79 gzip.write32u(self.fileobj, long(self.timestamp))
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80 self.fileobj.write('\002')
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81 self.fileobj.write('\377')
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82 if fname:
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83 self.fileobj.write(fname + '\000')
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84
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85 def __init__(self, dest, mtime, kind=''):
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86 self.mtime = mtime
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87
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88 def taropen(name, mode, fileobj=None):
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89 if kind == 'gz':
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90 mode = mode[0]
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91 if not fileobj:
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92 fileobj = open(name, mode + 'b')
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93 gzfileobj = self.GzipFileWithTime(name, mode + 'b',
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94 zlib.Z_BEST_COMPRESSION,
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95 fileobj, timestamp=mtime)
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96 return tarfile.TarFile.taropen(name, mode, gzfileobj)
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97 else:
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98 return tarfile.open(name, mode + kind, fileobj)
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99
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100 if isinstance(dest, str):
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101 self.z = taropen(dest, mode='w:')
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102 else:
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103 # Python 2.5-2.5.1 have a regression that requires a name arg
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104 self.z = taropen(name='', mode='w|', fileobj=dest)
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105
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106 def addfile(self, name, mode, islink, data):
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107 i = tarfile.TarInfo(name)
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108 i.mtime = self.mtime
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109 i.size = len(data)
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110 if islink:
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111 i.type = tarfile.SYMTYPE
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112 i.mode = 0777
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113 i.linkname = data
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114 data = None
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115 i.size = 0
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116 else:
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117 i.mode = mode
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118 data = cStringIO.StringIO(data)
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119 self.z.addfile(i, data)
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120
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121 def done(self):
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122 self.z.close()
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123
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124 class tellable(object):
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125 '''provide tell method for zipfile.ZipFile when writing to http
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126 response file object.'''
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127
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128 def __init__(self, fp):
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129 self.fp = fp
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130 self.offset = 0
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131
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132 def __getattr__(self, key):
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133 return getattr(self.fp, key)
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134
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135 def write(self, s):
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136 self.fp.write(s)
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137 self.offset += len(s)
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138
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139 def tell(self):
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diff changeset
140 return self.offset
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141
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142 class zipit(object):
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143 '''write archive to zip file or stream. can write uncompressed,
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144 or compressed with deflate.'''
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145
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146 def __init__(self, dest, mtime, compress=True):
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147 if not isinstance(dest, str):
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148 try:
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149 dest.tell()
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diff changeset
150 except (AttributeError, IOError):
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151 dest = tellable(dest)
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152 self.z = zipfile.ZipFile(dest, 'w',
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153 compress and zipfile.ZIP_DEFLATED or
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154 zipfile.ZIP_STORED)
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155
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156 # Python's zipfile module emits deprecation warnings if we try
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157 # to store files with a date before 1980.
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158 epoch = 315532800 # calendar.timegm((1980, 1, 1, 0, 0, 0, 1, 1, 0))
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159 if mtime < epoch:
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160 mtime = epoch
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161
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162 self.date_time = time.gmtime(mtime)[:6]
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163
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164 def addfile(self, name, mode, islink, data):
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165 i = zipfile.ZipInfo(name, self.date_time)
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166 i.compress_type = self.z.compression
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167 # unzip will not honor unix file modes unless file creator is
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168 # set to unix (id 3).
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169 i.create_system = 3
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170 ftype = stat.S_IFREG
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171 if islink:
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172 mode = 0777
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173 ftype = stat.S_IFLNK
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diff changeset
174 i.external_attr = (mode | ftype) << 16L
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175 self.z.writestr(i, data)
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176
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177 def done(self):
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178 self.z.close()
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179
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diff changeset
180 class fileit(object):
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181 '''write archive as files in directory.'''
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182
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diff changeset
183 def __init__(self, name, mtime):
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184 self.basedir = name
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185 self.opener = util.opener(self.basedir)
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186
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187 def addfile(self, name, mode, islink, data):
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188 if islink:
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diff changeset
189 self.opener.symlink(data, name)
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diff changeset
190 return
4830
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diff changeset
191 f = self.opener(name, "w", atomictemp=True)
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diff changeset
192 f.write(data)
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diff changeset
193 f.rename()
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194 destfile = os.path.join(self.basedir, name)
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diff changeset
195 os.chmod(destfile, mode)
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196
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197 def done(self):
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198 pass
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199
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200 archivers = {
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201 'files': fileit,
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202 'tar': tarit,
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diff changeset
203 'tbz2': lambda name, mtime: tarit(name, mtime, 'bz2'),
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diff changeset
204 'tgz': lambda name, mtime: tarit(name, mtime, 'gz'),
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diff changeset
205 'uzip': lambda name, mtime: zipit(name, mtime, False),
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206 'zip': zipit,
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diff changeset
207 }
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208
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diff changeset
209 def archive(repo, dest, node, kind, decode=True, matchfn=None,
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f00953d9533c subrepo: add support for 'hg archive'
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diff changeset
210 prefix=None, mtime=None, subrepos=False):
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211 '''create archive of repo as it was at node.
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212
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diff changeset
213 dest can be name of directory, name of archive file, or file
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parents:
diff changeset
214 object to write archive to.
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diff changeset
215
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parents:
diff changeset
216 kind is type of archive to create.
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217
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diff changeset
218 decode tells whether to put files through decode filters from
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parents:
diff changeset
219 hgrc.
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diff changeset
220
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diff changeset
221 matchfn is function to filter names of files to write to archive.
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parents:
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222
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diff changeset
223 prefix is name of path to put before every archive member.'''
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diff changeset
224
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diff changeset
225 if kind == 'files':
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diff changeset
226 if prefix:
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diff changeset
227 raise util.Abort(_('cannot give prefix when archiving to files'))
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diff changeset
228 else:
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diff changeset
229 prefix = tidyprefix(dest, kind, prefix)
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diff changeset
230
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parents: 4831
diff changeset
231 def write(name, mode, islink, getdata):
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Matt Mackall <mpm@selenic.com>
parents: 10263
diff changeset
232 if matchfn and not matchfn(name):
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Matt Mackall <mpm@selenic.com>
parents: 10263
diff changeset
233 return
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diff changeset
234 data = getdata()
2112
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parents:
diff changeset
235 if decode:
4005
656e06eebda7 replace filehandle version of wwrite with wwritedata
Matt Mackall <mpm@selenic.com>
parents: 3968
diff changeset
236 data = repo.wwritedata(name, data)
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diff changeset
237 archiver.addfile(prefix + name, mode, islink, data)
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parents:
diff changeset
238
6019
b70a530bdb93 cleanly abort on unknown archive type (issue966)
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 4951
diff changeset
239 if kind not in archivers:
6913
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Martin Geisler <mg@daimi.au.dk>
parents: 6749
diff changeset
240 raise util.Abort(_("unknown archive type '%s'") % kind)
6749
51b0e799352f manifest: remove execf/linkf methods
Matt Mackall <mpm@selenic.com>
parents: 6747
diff changeset
241
51b0e799352f manifest: remove execf/linkf methods
Matt Mackall <mpm@selenic.com>
parents: 6747
diff changeset
242 ctx = repo[node]
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Martin Geisler <mg@lazybytes.net>
parents: 11557
diff changeset
243 archiver = archivers[kind](dest, mtime or ctx.date()[0])
6749
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parents: 6747
diff changeset
244
6183
0750e4ba9d3d Add config option to disable putting .hg_archival.txt inside archives.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 6020
diff changeset
245 if repo.ui.configbool("ui", "archivemeta", True):
9614
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Gilles Moris <gilles.moris@free.fr>
parents: 8778
diff changeset
246 def metadata():
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parents: 8778
diff changeset
247 base = 'repo: %s\nnode: %s\nbranch: %s\n' % (
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Patrick Mezard <pmezard@gmail.com>
parents: 11558
diff changeset
248 repo[0].hex(), hex(node), ctx.branch())
9614
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parents: 8778
diff changeset
249
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parents: 8778
diff changeset
250 tags = ''.join('tag: %s\n' % t for t in ctx.tags()
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parents: 8778
diff changeset
251 if repo.tagtype(t) == 'global')
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parents: 8778
diff changeset
252 if not tags:
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parents: 8778
diff changeset
253 repo.ui.pushbuffer()
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diff changeset
254 opts = {'template': '{latesttag}\n{latesttagdistance}',
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diff changeset
255 'style': '', 'patch': None, 'git': None}
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Gilles Moris <gilles.moris@free.fr>
parents: 8778
diff changeset
256 cmdutil.show_changeset(repo.ui, repo, opts).show(ctx)
58edd448da4f archive: add branch and tag informations to the .hg_archival.txt file
Gilles Moris <gilles.moris@free.fr>
parents: 8778
diff changeset
257 ltags, dist = repo.ui.popbuffer().split('\n')
58edd448da4f archive: add branch and tag informations to the .hg_archival.txt file
Gilles Moris <gilles.moris@free.fr>
parents: 8778
diff changeset
258 tags = ''.join('latesttag: %s\n' % t for t in ltags.split(':'))
58edd448da4f archive: add branch and tag informations to the .hg_archival.txt file
Gilles Moris <gilles.moris@free.fr>
parents: 8778
diff changeset
259 tags += 'latesttagdistance: %s\n' % dist
58edd448da4f archive: add branch and tag informations to the .hg_archival.txt file
Gilles Moris <gilles.moris@free.fr>
parents: 8778
diff changeset
260
58edd448da4f archive: add branch and tag informations to the .hg_archival.txt file
Gilles Moris <gilles.moris@free.fr>
parents: 8778
diff changeset
261 return base + tags
58edd448da4f archive: add branch and tag informations to the .hg_archival.txt file
Gilles Moris <gilles.moris@free.fr>
parents: 8778
diff changeset
262
58edd448da4f archive: add branch and tag informations to the .hg_archival.txt file
Gilles Moris <gilles.moris@free.fr>
parents: 8778
diff changeset
263 write('.hg_archival.txt', 0644, False, metadata)
58edd448da4f archive: add branch and tag informations to the .hg_archival.txt file
Gilles Moris <gilles.moris@free.fr>
parents: 8778
diff changeset
264
6749
51b0e799352f manifest: remove execf/linkf methods
Matt Mackall <mpm@selenic.com>
parents: 6747
diff changeset
265 for f in ctx:
51b0e799352f manifest: remove execf/linkf methods
Matt Mackall <mpm@selenic.com>
parents: 6747
diff changeset
266 ff = ctx.flags(f)
51b0e799352f manifest: remove execf/linkf methods
Matt Mackall <mpm@selenic.com>
parents: 6747
diff changeset
267 write(f, 'x' in ff and 0755 or 0644, 'l' in ff, ctx[f].data)
12323
f00953d9533c subrepo: add support for 'hg archive'
Martin Geisler <mg@aragost.com>
parents: 12321
diff changeset
268
f00953d9533c subrepo: add support for 'hg archive'
Martin Geisler <mg@aragost.com>
parents: 12321
diff changeset
269 if subrepos:
f00953d9533c subrepo: add support for 'hg archive'
Martin Geisler <mg@aragost.com>
parents: 12321
diff changeset
270 for subpath in ctx.substate:
f00953d9533c subrepo: add support for 'hg archive'
Martin Geisler <mg@aragost.com>
parents: 12321
diff changeset
271 sub = ctx.sub(subpath)
f00953d9533c subrepo: add support for 'hg archive'
Martin Geisler <mg@aragost.com>
parents: 12321
diff changeset
272 sub.archive(archiver, prefix)
f00953d9533c subrepo: add support for 'hg archive'
Martin Geisler <mg@aragost.com>
parents: 12321
diff changeset
273
2112
2b03c6733efa add "archive" command, like "cvs export" only better.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
274 archiver.done()