Mercurial > hg
annotate mercurial/archival.py @ 25621:21a874693619
revset: refactor the non-public phase code
Code for draft and secret are the same. We'll make it more complex to
take advantages of the set recomputed in C, so we first refactor the
code to only have one place to update (and make sure all behave
properly).
We do not refactor the 'public()' code because it does not have a natively
computed set.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
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date | Wed, 17 Jun 2015 19:19:57 -0700 |
parents | dc707fb35550 |
children | e93036747902 |
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 import match as matchmod |
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10 import cmdutil |
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11 import scmutil, util, encoding |
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12 import cStringIO, os, tarfile, time, zipfile |
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13 import zlib, gzip |
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14 import struct |
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15 import error |
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16 |
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17 # from unzip source code: |
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18 _UNX_IFREG = 0x8000 |
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19 _UNX_IFLNK = 0xa000 |
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20 |
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21 def tidyprefix(dest, kind, prefix): |
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22 '''choose prefix to use for names in archive. make sure prefix is |
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23 safe for consumers.''' |
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24 |
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25 if prefix: |
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26 prefix = util.normpath(prefix) |
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27 else: |
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28 if not isinstance(dest, str): |
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29 raise ValueError('dest must be string if no prefix') |
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30 prefix = os.path.basename(dest) |
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31 lower = prefix.lower() |
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32 for sfx in exts.get(kind, []): |
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33 if lower.endswith(sfx): |
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34 prefix = prefix[:-len(sfx)] |
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35 break |
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36 lpfx = os.path.normpath(util.localpath(prefix)) |
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37 prefix = util.pconvert(lpfx) |
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38 if not prefix.endswith('/'): |
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39 prefix += '/' |
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40 # Drop the leading '.' path component if present, so Windows can read the |
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41 # zip files (issue4634) |
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42 if prefix.startswith('./'): |
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43 prefix = prefix[2:] |
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44 if prefix.startswith('../') or os.path.isabs(lpfx) or '/../' in prefix: |
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45 raise util.Abort(_('archive prefix contains illegal components')) |
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46 return prefix |
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47 |
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48 exts = { |
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49 'tar': ['.tar'], |
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50 'tbz2': ['.tbz2', '.tar.bz2'], |
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51 'tgz': ['.tgz', '.tar.gz'], |
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52 'zip': ['.zip'], |
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53 } |
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54 |
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55 def guesskind(dest): |
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56 for kind, extensions in exts.iteritems(): |
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57 if any(dest.endswith(ext) for ext in extensions): |
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58 return kind |
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59 return None |
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60 |
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61 def _rootctx(repo): |
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62 # repo[0] may be hidden |
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63 for rev in repo: |
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64 return repo[rev] |
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65 return repo['null'] |
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66 |
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67 def buildmetadata(ctx): |
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68 '''build content of .hg_archival.txt''' |
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69 repo = ctx.repo() |
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70 hex = ctx.hex() |
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71 if ctx.rev() is None: |
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72 hex = ctx.p1().hex() |
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73 if ctx.dirty(): |
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74 hex += '+' |
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75 |
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76 base = 'repo: %s\nnode: %s\nbranch: %s\n' % ( |
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77 _rootctx(repo).hex(), hex, encoding.fromlocal(ctx.branch())) |
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78 |
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79 tags = ''.join('tag: %s\n' % t for t in ctx.tags() |
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80 if repo.tagtype(t) == 'global') |
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81 if not tags: |
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82 repo.ui.pushbuffer() |
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83 opts = {'template': '{latesttag}\n{latesttagdistance}', |
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84 'style': '', 'patch': None, 'git': None} |
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85 cmdutil.show_changeset(repo.ui, repo, opts).show(ctx) |
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86 ltags, dist = repo.ui.popbuffer().split('\n') |
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87 ltags = ltags.split(':') |
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88 changessince = len(repo.revs('only(.,%s)', ltags[0])) |
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89 tags = ''.join('latesttag: %s\n' % t for t in ltags) |
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90 tags += 'latesttagdistance: %s\n' % dist |
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91 tags += 'changessincelatesttag: %s\n' % changessince |
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92 |
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93 return base + tags |
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94 |
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95 class tarit(object): |
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96 '''write archive to tar file or stream. can write uncompressed, |
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97 or compress with gzip or bzip2.''' |
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98 |
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99 class GzipFileWithTime(gzip.GzipFile): |
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100 |
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101 def __init__(self, *args, **kw): |
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102 timestamp = None |
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103 if 'timestamp' in kw: |
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104 timestamp = kw.pop('timestamp') |
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105 if timestamp is None: |
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106 self.timestamp = time.time() |
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107 else: |
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108 self.timestamp = timestamp |
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109 gzip.GzipFile.__init__(self, *args, **kw) |
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110 |
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111 def _write_gzip_header(self): |
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112 self.fileobj.write('\037\213') # magic header |
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113 self.fileobj.write('\010') # compression method |
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114 # Python 2.6 introduced self.name and deprecated self.filename |
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115 try: |
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116 fname = self.name |
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117 except AttributeError: |
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118 fname = self.filename |
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119 if fname and fname.endswith('.gz'): |
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120 fname = fname[:-3] |
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121 flags = 0 |
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122 if fname: |
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123 flags = gzip.FNAME |
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124 self.fileobj.write(chr(flags)) |
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125 gzip.write32u(self.fileobj, long(self.timestamp)) |
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126 self.fileobj.write('\002') |
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127 self.fileobj.write('\377') |
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128 if fname: |
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129 self.fileobj.write(fname + '\000') |
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130 |
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131 def __init__(self, dest, mtime, kind=''): |
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132 self.mtime = mtime |
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133 self.fileobj = None |
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134 |
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135 def taropen(name, mode, fileobj=None): |
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136 if kind == 'gz': |
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137 mode = mode[0] |
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138 if not fileobj: |
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140 gzfileobj = self.GzipFileWithTime(name, mode + 'b', |
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141 zlib.Z_BEST_COMPRESSION, |
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142 fileobj, timestamp=mtime) |
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143 self.fileobj = gzfileobj |
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144 return tarfile.TarFile.taropen(name, mode, gzfileobj) |
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145 else: |
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146 return tarfile.open(name, mode + kind, fileobj) |
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147 |
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148 if isinstance(dest, str): |
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149 self.z = taropen(dest, mode='w:') |
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150 else: |
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151 # Python 2.5-2.5.1 have a regression that requires a name arg |
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152 self.z = taropen(name='', mode='w|', fileobj=dest) |
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153 |
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154 def addfile(self, name, mode, islink, data): |
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155 i = tarfile.TarInfo(name) |
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156 i.mtime = self.mtime |
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157 i.size = len(data) |
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158 if islink: |
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159 i.type = tarfile.SYMTYPE |
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160 i.mode = 0777 |
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161 i.linkname = data |
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162 data = None |
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163 i.size = 0 |
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164 else: |
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165 i.mode = mode |
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166 data = cStringIO.StringIO(data) |
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167 self.z.addfile(i, data) |
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168 |
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169 def done(self): |
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170 self.z.close() |
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171 if self.fileobj: |
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172 self.fileobj.close() |
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173 |
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174 class tellable(object): |
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175 '''provide tell method for zipfile.ZipFile when writing to http |
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176 response file object.''' |
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177 |
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178 def __init__(self, fp): |
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179 self.fp = fp |
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180 self.offset = 0 |
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181 |
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182 def __getattr__(self, key): |
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183 return getattr(self.fp, key) |
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184 |
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185 def write(self, s): |
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186 self.fp.write(s) |
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187 self.offset += len(s) |
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188 |
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189 def tell(self): |
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190 return self.offset |
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191 |
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192 class zipit(object): |
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193 '''write archive to zip file or stream. can write uncompressed, |
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194 or compressed with deflate.''' |
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195 |
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196 def __init__(self, dest, mtime, compress=True): |
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197 if not isinstance(dest, str): |
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198 try: |
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199 dest.tell() |
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200 except (AttributeError, IOError): |
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201 dest = tellable(dest) |
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202 self.z = zipfile.ZipFile(dest, 'w', |
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203 compress and zipfile.ZIP_DEFLATED or |
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204 zipfile.ZIP_STORED) |
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205 |
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206 # Python's zipfile module emits deprecation warnings if we try |
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207 # to store files with a date before 1980. |
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208 epoch = 315532800 # calendar.timegm((1980, 1, 1, 0, 0, 0, 1, 1, 0)) |
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209 if mtime < epoch: |
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210 mtime = epoch |
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211 |
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212 self.mtime = mtime |
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213 self.date_time = time.gmtime(mtime)[:6] |
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214 |
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215 def addfile(self, name, mode, islink, data): |
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216 i = zipfile.ZipInfo(name, self.date_time) |
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217 i.compress_type = self.z.compression |
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218 # unzip will not honor unix file modes unless file creator is |
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219 # set to unix (id 3). |
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220 i.create_system = 3 |
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221 ftype = _UNX_IFREG |
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222 if islink: |
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223 mode = 0777 |
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224 ftype = _UNX_IFLNK |
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225 i.external_attr = (mode | ftype) << 16L |
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226 # add "extended-timestamp" extra block, because zip archives |
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227 # without this will be extracted with unexpected timestamp, |
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228 # if TZ is not configured as GMT |
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229 i.extra += struct.pack('<hhBl', |
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230 0x5455, # block type: "extended-timestamp" |
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231 1 + 4, # size of this block |
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232 1, # "modification time is present" |
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233 int(self.mtime)) # last modification (UTC) |
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234 self.z.writestr(i, data) |
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235 |
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236 def done(self): |
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237 self.z.close() |
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238 |
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239 class fileit(object): |
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240 '''write archive as files in directory.''' |
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241 |
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242 def __init__(self, name, mtime): |
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243 self.basedir = name |
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244 self.opener = scmutil.opener(self.basedir) |
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245 |
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246 def addfile(self, name, mode, islink, data): |
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247 if islink: |
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248 self.opener.symlink(data, name) |
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249 return |
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250 f = self.opener(name, "w", atomictemp=True) |
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251 f.write(data) |
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252 f.close() |
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253 destfile = os.path.join(self.basedir, name) |
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254 os.chmod(destfile, mode) |
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255 |
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256 def done(self): |
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257 pass |
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258 |
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259 archivers = { |
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260 'files': fileit, |
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261 'tar': tarit, |
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262 'tbz2': lambda name, mtime: tarit(name, mtime, 'bz2'), |
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263 'tgz': lambda name, mtime: tarit(name, mtime, 'gz'), |
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264 'uzip': lambda name, mtime: zipit(name, mtime, False), |
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265 'zip': zipit, |
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266 } |
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267 |
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268 def archive(repo, dest, node, kind, decode=True, matchfn=None, |
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269 prefix='', mtime=None, subrepos=False): |
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270 '''create archive of repo as it was at node. |
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271 |
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272 dest can be name of directory, name of archive file, or file |
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273 object to write archive to. |
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274 |
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275 kind is type of archive to create. |
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276 |
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277 decode tells whether to put files through decode filters from |
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278 hgrc. |
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279 |
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280 matchfn is function to filter names of files to write to archive. |
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281 |
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282 prefix is name of path to put before every archive member.''' |
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283 |
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284 if kind == 'files': |
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285 if prefix: |
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286 raise util.Abort(_('cannot give prefix when archiving to files')) |
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287 else: |
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288 prefix = tidyprefix(dest, kind, prefix) |
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289 |
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290 def write(name, mode, islink, getdata): |
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291 data = getdata() |
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292 if decode: |
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293 data = repo.wwritedata(name, data) |
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294 archiver.addfile(prefix + name, mode, islink, data) |
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295 |
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296 if kind not in archivers: |
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297 raise util.Abort(_("unknown archive type '%s'") % kind) |
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298 |
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299 ctx = repo[node] |
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300 archiver = archivers[kind](dest, mtime or ctx.date()[0]) |
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301 |
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302 if repo.ui.configbool("ui", "archivemeta", True): |
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303 name = '.hg_archival.txt' |
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304 if not matchfn or matchfn(name): |
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305 write(name, 0644, False, lambda: buildmetadata(ctx)) |
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306 |
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307 if matchfn: |
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308 files = [f for f in ctx.manifest().keys() if matchfn(f)] |
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309 else: |
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310 files = ctx.manifest().keys() |
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311 total = len(files) |
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312 if total: |
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313 files.sort() |
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314 repo.ui.progress(_('archiving'), 0, unit=_('files'), total=total) |
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315 for i, f in enumerate(files): |
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316 ff = ctx.flags(f) |
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317 write(f, 'x' in ff and 0755 or 0644, 'l' in ff, ctx[f].data) |
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318 repo.ui.progress(_('archiving'), i + 1, item=f, |
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319 unit=_('files'), total=total) |
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320 repo.ui.progress(_('archiving'), None) |
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321 |
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322 if subrepos: |
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323 for subpath in sorted(ctx.substate): |
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324 sub = ctx.workingsub(subpath) |
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325 submatch = matchmod.narrowmatcher(subpath, matchfn) |
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326 total += sub.archive(archiver, prefix, submatch) |
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327 |
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328 if total == 0: |
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329 raise error.Abort(_('no files match the archive pattern')) |
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330 |
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331 archiver.done() |
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332 return total |