Mercurial > hg
annotate mercurial/archival.py @ 11791:00cde9bddbe4
repair: do not compress partial bundle if we do not keep it on disk
A partial bundle is created to temporarily save revisions > rev but
not descending from the node to strip, to be able to restore the
changesets after stripping the changelog.
Since this bundle is not kept after the strip operation, and is not
user-visible, it is not necessary and should be faster to avoid
compression.
author | Nicolas Dumazet <nicdumz.commits@gmail.com> |
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date | Thu, 12 Aug 2010 16:53:23 +0900 |
parents | d8f6458434ec |
children | 1ef70bdd1e62 |
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 |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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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 flags = 0 |
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74 if fname: |
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75 flags = gzip.FNAME |
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76 self.fileobj.write(chr(flags)) |
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77 gzip.write32u(self.fileobj, long(self.timestamp)) |
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78 self.fileobj.write('\002') |
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79 self.fileobj.write('\377') |
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80 if fname: |
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81 self.fileobj.write(fname + '\000') |
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82 |
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83 def __init__(self, dest, mtime, kind=''): |
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84 self.mtime = mtime |
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85 |
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86 def taropen(name, mode, fileobj=None): |
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87 if kind == 'gz': |
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88 mode = mode[0] |
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89 if not fileobj: |
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91 gzfileobj = self.GzipFileWithTime(name, mode + 'b', |
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92 zlib.Z_BEST_COMPRESSION, |
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93 fileobj, timestamp=mtime) |
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94 return tarfile.TarFile.taropen(name, mode, gzfileobj) |
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95 else: |
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96 return tarfile.open(name, mode + kind, fileobj) |
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97 |
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98 if isinstance(dest, str): |
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99 self.z = taropen(dest, mode='w:') |
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100 else: |
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101 # Python 2.5-2.5.1 have a regression that requires a name arg |
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102 self.z = taropen(name='', mode='w|', fileobj=dest) |
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103 |
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104 def addfile(self, name, mode, islink, data): |
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105 i = tarfile.TarInfo(name) |
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106 i.mtime = self.mtime |
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107 i.size = len(data) |
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108 if islink: |
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109 i.type = tarfile.SYMTYPE |
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110 i.mode = 0777 |
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111 i.linkname = data |
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112 data = None |
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113 i.size = 0 |
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114 else: |
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115 i.mode = mode |
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116 data = cStringIO.StringIO(data) |
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117 self.z.addfile(i, data) |
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118 |
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119 def done(self): |
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120 self.z.close() |
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121 |
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122 class tellable(object): |
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123 '''provide tell method for zipfile.ZipFile when writing to http |
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124 response file object.''' |
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125 |
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126 def __init__(self, fp): |
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127 self.fp = fp |
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128 self.offset = 0 |
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129 |
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130 def __getattr__(self, key): |
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131 return getattr(self.fp, key) |
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132 |
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133 def write(self, s): |
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134 self.fp.write(s) |
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135 self.offset += len(s) |
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136 |
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137 def tell(self): |
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138 return self.offset |
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139 |
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140 class zipit(object): |
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141 '''write archive to zip file or stream. can write uncompressed, |
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142 or compressed with deflate.''' |
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143 |
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144 def __init__(self, dest, mtime, compress=True): |
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145 if not isinstance(dest, str): |
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146 try: |
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147 dest.tell() |
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148 except (AttributeError, IOError): |
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149 dest = tellable(dest) |
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150 self.z = zipfile.ZipFile(dest, 'w', |
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151 compress and zipfile.ZIP_DEFLATED or |
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152 zipfile.ZIP_STORED) |
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153 self.date_time = time.gmtime(mtime)[:6] |
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154 |
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155 def addfile(self, name, mode, islink, data): |
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156 i = zipfile.ZipInfo(name, self.date_time) |
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157 i.compress_type = self.z.compression |
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158 # unzip will not honor unix file modes unless file creator is |
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159 # set to unix (id 3). |
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160 i.create_system = 3 |
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161 ftype = stat.S_IFREG |
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162 if islink: |
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163 mode = 0777 |
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164 ftype = stat.S_IFLNK |
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165 i.external_attr = (mode | ftype) << 16L |
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166 self.z.writestr(i, data) |
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167 |
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168 def done(self): |
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169 self.z.close() |
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170 |
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171 class fileit(object): |
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172 '''write archive as files in directory.''' |
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173 |
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174 def __init__(self, name, mtime): |
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175 self.basedir = name |
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176 self.opener = util.opener(self.basedir) |
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177 |
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178 def addfile(self, name, mode, islink, data): |
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179 if islink: |
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180 self.opener.symlink(data, name) |
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181 return |
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182 f = self.opener(name, "w", atomictemp=True) |
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183 f.write(data) |
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184 f.rename() |
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185 destfile = os.path.join(self.basedir, name) |
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186 os.chmod(destfile, mode) |
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187 |
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188 def done(self): |
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189 pass |
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190 |
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191 archivers = { |
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192 'files': fileit, |
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193 'tar': tarit, |
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194 'tbz2': lambda name, mtime: tarit(name, mtime, 'bz2'), |
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195 'tgz': lambda name, mtime: tarit(name, mtime, 'gz'), |
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196 'uzip': lambda name, mtime: zipit(name, mtime, False), |
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197 'zip': zipit, |
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198 } |
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199 |
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200 def archive(repo, dest, node, kind, decode=True, matchfn=None, |
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201 prefix=None, mtime=None): |
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202 '''create archive of repo as it was at node. |
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203 |
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204 dest can be name of directory, name of archive file, or file |
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205 object to write archive to. |
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206 |
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207 kind is type of archive to create. |
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208 |
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209 decode tells whether to put files through decode filters from |
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210 hgrc. |
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211 |
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212 matchfn is function to filter names of files to write to archive. |
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213 |
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214 prefix is name of path to put before every archive member.''' |
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215 |
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216 if kind == 'files': |
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217 if prefix: |
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218 raise util.Abort(_('cannot give prefix when archiving to files')) |
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219 else: |
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220 prefix = tidyprefix(dest, kind, prefix) |
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221 |
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222 def write(name, mode, islink, getdata): |
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223 if matchfn and not matchfn(name): |
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224 return |
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225 data = getdata() |
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226 if decode: |
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227 data = repo.wwritedata(name, data) |
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228 archiver.addfile(prefix + name, mode, islink, data) |
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229 |
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cleanly abort on unknown archive type (issue966)
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230 if kind not in archivers: |
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231 raise util.Abort(_("unknown archive type '%s'") % kind) |
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232 |
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233 ctx = repo[node] |
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234 archiver = archivers[kind](dest, mtime or ctx.date()[0]) |
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235 |
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Add config option to disable putting .hg_archival.txt inside archives.
Thomas Arendsen Hein <thomas@intevation.de>
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236 if repo.ui.configbool("ui", "archivemeta", True): |
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237 def metadata(): |
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238 base = 'repo: %s\nnode: %s\nbranch: %s\n' % ( |
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239 hex(repo.changelog.node(0)), hex(node), ctx.branch()) |
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240 |
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241 tags = ''.join('tag: %s\n' % t for t in ctx.tags() |
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242 if repo.tagtype(t) == 'global') |
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243 if not tags: |
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244 repo.ui.pushbuffer() |
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245 opts = {'template': '{latesttag}\n{latesttagdistance}', |
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246 'style': '', 'patch': None, 'git': None} |
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247 cmdutil.show_changeset(repo.ui, repo, opts).show(ctx) |
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248 ltags, dist = repo.ui.popbuffer().split('\n') |
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249 tags = ''.join('latesttag: %s\n' % t for t in ltags.split(':')) |
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250 tags += 'latesttagdistance: %s\n' % dist |
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251 |
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252 return base + tags |
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253 |
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254 write('.hg_archival.txt', 0644, False, metadata) |
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255 |
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256 for f in ctx: |
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257 ff = ctx.flags(f) |
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258 write(f, 'x' in ff and 0755 or 0644, 'l' in ff, ctx[f].data) |
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259 archiver.done() |