Mercurial > hg
annotate mercurial/archival.py @ 32129:f0ea0f642627
py3: make posix.getuser return a bytes
author | Pulkit Goyal <7895pulkit@gmail.com> |
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date | Fri, 21 Apr 2017 00:53:38 +0530 |
parents | 7feab0e7702d |
children | 3047167733dc |
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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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8 from __future__ import absolute_import |
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9 |
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10 import gzip |
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11 import os |
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12 import struct |
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13 import tarfile |
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14 import time |
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15 import zipfile |
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16 import zlib |
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17 |
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18 from .i18n import _ |
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19 |
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20 from . import ( |
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21 cmdutil, |
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22 encoding, |
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23 error, |
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24 match as matchmod, |
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25 util, |
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26 vfs as vfsmod, |
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27 ) |
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28 stringio = util.stringio |
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29 |
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30 # from unzip source code: |
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31 _UNX_IFREG = 0x8000 |
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32 _UNX_IFLNK = 0xa000 |
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33 |
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34 def tidyprefix(dest, kind, prefix): |
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35 '''choose prefix to use for names in archive. make sure prefix is |
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36 safe for consumers.''' |
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37 |
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38 if prefix: |
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39 prefix = util.normpath(prefix) |
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40 else: |
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41 if not isinstance(dest, str): |
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42 raise ValueError('dest must be string if no prefix') |
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43 prefix = os.path.basename(dest) |
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44 lower = prefix.lower() |
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45 for sfx in exts.get(kind, []): |
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46 if lower.endswith(sfx): |
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47 prefix = prefix[:-len(sfx)] |
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48 break |
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49 lpfx = os.path.normpath(util.localpath(prefix)) |
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50 prefix = util.pconvert(lpfx) |
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51 if not prefix.endswith('/'): |
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52 prefix += '/' |
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53 # Drop the leading '.' path component if present, so Windows can read the |
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54 # zip files (issue4634) |
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55 if prefix.startswith('./'): |
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56 prefix = prefix[2:] |
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57 if prefix.startswith('../') or os.path.isabs(lpfx) or '/../' in prefix: |
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58 raise error.Abort(_('archive prefix contains illegal components')) |
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59 return prefix |
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60 |
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61 exts = { |
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62 'tar': ['.tar'], |
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63 'tbz2': ['.tbz2', '.tar.bz2'], |
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64 'tgz': ['.tgz', '.tar.gz'], |
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65 'zip': ['.zip'], |
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66 } |
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67 |
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68 def guesskind(dest): |
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69 for kind, extensions in exts.iteritems(): |
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70 if any(dest.endswith(ext) for ext in extensions): |
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71 return kind |
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72 return None |
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73 |
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74 def _rootctx(repo): |
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75 # repo[0] may be hidden |
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76 for rev in repo: |
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77 return repo[rev] |
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78 return repo['null'] |
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79 |
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80 def buildmetadata(ctx): |
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81 '''build content of .hg_archival.txt''' |
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82 repo = ctx.repo() |
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83 hex = ctx.hex() |
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84 if ctx.rev() is None: |
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85 hex = ctx.p1().hex() |
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86 if ctx.dirty(): |
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87 hex += '+' |
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88 |
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89 base = 'repo: %s\nnode: %s\nbranch: %s\n' % ( |
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90 _rootctx(repo).hex(), hex, encoding.fromlocal(ctx.branch())) |
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91 |
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92 tags = ''.join('tag: %s\n' % t for t in ctx.tags() |
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93 if repo.tagtype(t) == 'global') |
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94 if not tags: |
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95 repo.ui.pushbuffer() |
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96 opts = {'template': '{latesttag}\n{latesttagdistance}\n' |
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97 '{changessincelatesttag}', |
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98 'style': '', 'patch': None, 'git': None} |
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99 cmdutil.show_changeset(repo.ui, repo, opts).show(ctx) |
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100 ltags, dist, changessince = repo.ui.popbuffer().split('\n') |
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101 ltags = ltags.split(':') |
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102 tags = ''.join('latesttag: %s\n' % t for t in ltags) |
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103 tags += 'latesttagdistance: %s\n' % dist |
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104 tags += 'changessincelatesttag: %s\n' % changessince |
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105 |
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106 return base + tags |
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107 |
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108 class tarit(object): |
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109 '''write archive to tar file or stream. can write uncompressed, |
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110 or compress with gzip or bzip2.''' |
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111 |
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112 class GzipFileWithTime(gzip.GzipFile): |
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113 |
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114 def __init__(self, *args, **kw): |
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115 timestamp = None |
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116 if 'timestamp' in kw: |
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117 timestamp = kw.pop('timestamp') |
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118 if timestamp is None: |
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119 self.timestamp = time.time() |
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120 else: |
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121 self.timestamp = timestamp |
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122 gzip.GzipFile.__init__(self, *args, **kw) |
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123 |
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124 def _write_gzip_header(self): |
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125 self.fileobj.write('\037\213') # magic header |
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126 self.fileobj.write('\010') # compression method |
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127 fname = self.name |
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128 if fname and fname.endswith('.gz'): |
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129 fname = fname[:-3] |
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130 flags = 0 |
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131 if fname: |
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132 flags = gzip.FNAME |
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133 self.fileobj.write(chr(flags)) |
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134 gzip.write32u(self.fileobj, long(self.timestamp)) |
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135 self.fileobj.write('\002') |
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136 self.fileobj.write('\377') |
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137 if fname: |
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138 self.fileobj.write(fname + '\000') |
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139 |
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140 def __init__(self, dest, mtime, kind=''): |
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141 self.mtime = mtime |
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142 self.fileobj = None |
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143 |
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144 def taropen(mode, name='', fileobj=None): |
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145 if kind == 'gz': |
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146 mode = mode[0] |
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147 if not fileobj: |
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149 gzfileobj = self.GzipFileWithTime(name, mode + 'b', |
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150 zlib.Z_BEST_COMPRESSION, |
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151 fileobj, timestamp=mtime) |
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152 self.fileobj = gzfileobj |
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153 return tarfile.TarFile.taropen(name, mode, gzfileobj) |
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154 else: |
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155 return tarfile.open(name, mode + kind, fileobj) |
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156 |
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157 if isinstance(dest, str): |
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158 self.z = taropen('w:', name=dest) |
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159 else: |
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160 self.z = taropen('w|', fileobj=dest) |
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161 |
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162 def addfile(self, name, mode, islink, data): |
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163 i = tarfile.TarInfo(name) |
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164 i.mtime = self.mtime |
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165 i.size = len(data) |
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166 if islink: |
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167 i.type = tarfile.SYMTYPE |
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168 i.mode = 0o777 |
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169 i.linkname = data |
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170 data = None |
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171 i.size = 0 |
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172 else: |
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173 i.mode = mode |
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174 data = stringio(data) |
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175 self.z.addfile(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 if self.fileobj: |
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180 self.fileobj.close() |
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181 |
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182 class tellable(object): |
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183 '''provide tell method for zipfile.ZipFile when writing to http |
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184 response file object.''' |
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185 |
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186 def __init__(self, fp): |
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187 self.fp = fp |
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188 self.offset = 0 |
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189 |
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190 def __getattr__(self, key): |
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191 return getattr(self.fp, key) |
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192 |
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193 def write(self, s): |
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194 self.fp.write(s) |
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195 self.offset += len(s) |
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196 |
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197 def tell(self): |
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198 return self.offset |
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199 |
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200 class zipit(object): |
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201 '''write archive to zip file or stream. can write uncompressed, |
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202 or compressed with deflate.''' |
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203 |
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204 def __init__(self, dest, mtime, compress=True): |
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205 if not isinstance(dest, str): |
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206 try: |
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207 dest.tell() |
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208 except (AttributeError, IOError): |
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209 dest = tellable(dest) |
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210 self.z = zipfile.ZipFile(dest, 'w', |
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211 compress and zipfile.ZIP_DEFLATED or |
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212 zipfile.ZIP_STORED) |
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213 |
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214 # Python's zipfile module emits deprecation warnings if we try |
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215 # to store files with a date before 1980. |
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216 epoch = 315532800 # calendar.timegm((1980, 1, 1, 0, 0, 0, 1, 1, 0)) |
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217 if mtime < epoch: |
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218 mtime = epoch |
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219 |
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220 self.mtime = mtime |
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221 self.date_time = time.gmtime(mtime)[:6] |
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222 |
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223 def addfile(self, name, mode, islink, data): |
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224 i = zipfile.ZipInfo(name, self.date_time) |
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225 i.compress_type = self.z.compression |
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226 # unzip will not honor unix file modes unless file creator is |
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227 # set to unix (id 3). |
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228 i.create_system = 3 |
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229 ftype = _UNX_IFREG |
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230 if islink: |
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231 mode = 0o777 |
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232 ftype = _UNX_IFLNK |
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233 i.external_attr = (mode | ftype) << 16 |
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234 # add "extended-timestamp" extra block, because zip archives |
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235 # without this will be extracted with unexpected timestamp, |
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236 # if TZ is not configured as GMT |
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237 i.extra += struct.pack('<hhBl', |
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238 0x5455, # block type: "extended-timestamp" |
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239 1 + 4, # size of this block |
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240 1, # "modification time is present" |
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241 int(self.mtime)) # last modification (UTC) |
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242 self.z.writestr(i, data) |
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243 |
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244 def done(self): |
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245 self.z.close() |
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246 |
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247 class fileit(object): |
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248 '''write archive as files in directory.''' |
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249 |
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250 def __init__(self, name, mtime): |
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251 self.basedir = name |
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252 self.opener = vfsmod.vfs(self.basedir) |
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253 |
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254 def addfile(self, name, mode, islink, data): |
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255 if islink: |
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256 self.opener.symlink(data, name) |
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257 return |
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258 f = self.opener(name, "w", atomictemp=True) |
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259 f.write(data) |
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260 f.close() |
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261 destfile = os.path.join(self.basedir, name) |
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262 os.chmod(destfile, mode) |
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263 |
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264 def done(self): |
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265 pass |
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266 |
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267 archivers = { |
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268 'files': fileit, |
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269 'tar': tarit, |
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270 'tbz2': lambda name, mtime: tarit(name, mtime, 'bz2'), |
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271 'tgz': lambda name, mtime: tarit(name, mtime, 'gz'), |
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272 'uzip': lambda name, mtime: zipit(name, mtime, False), |
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273 'zip': zipit, |
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274 } |
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275 |
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276 def archive(repo, dest, node, kind, decode=True, matchfn=None, |
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277 prefix='', mtime=None, subrepos=False): |
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278 '''create archive of repo as it was at node. |
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279 |
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280 dest can be name of directory, name of archive file, or file |
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281 object to write archive to. |
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282 |
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283 kind is type of archive to create. |
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284 |
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285 decode tells whether to put files through decode filters from |
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286 hgrc. |
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287 |
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288 matchfn is function to filter names of files to write to archive. |
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289 |
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290 prefix is name of path to put before every archive member.''' |
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291 |
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292 if kind == 'files': |
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293 if prefix: |
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294 raise error.Abort(_('cannot give prefix when archiving to files')) |
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295 else: |
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296 prefix = tidyprefix(dest, kind, prefix) |
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297 |
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298 def write(name, mode, islink, getdata): |
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299 data = getdata() |
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300 if decode: |
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301 data = repo.wwritedata(name, data) |
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302 archiver.addfile(prefix + name, mode, islink, data) |
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303 |
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304 if kind not in archivers: |
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305 raise error.Abort(_("unknown archive type '%s'") % kind) |
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306 |
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307 ctx = repo[node] |
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308 archiver = archivers[kind](dest, mtime or ctx.date()[0]) |
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309 |
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310 if repo.ui.configbool("ui", "archivemeta", True): |
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311 name = '.hg_archival.txt' |
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312 if not matchfn or matchfn(name): |
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313 write(name, 0o644, False, lambda: buildmetadata(ctx)) |
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314 |
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315 if matchfn: |
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316 files = [f for f in ctx.manifest().keys() if matchfn(f)] |
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317 else: |
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318 files = ctx.manifest().keys() |
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319 total = len(files) |
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320 if total: |
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321 files.sort() |
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322 repo.ui.progress(_('archiving'), 0, unit=_('files'), total=total) |
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323 for i, f in enumerate(files): |
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324 ff = ctx.flags(f) |
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325 write(f, 'x' in ff and 0o755 or 0o644, 'l' in ff, ctx[f].data) |
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326 repo.ui.progress(_('archiving'), i + 1, item=f, |
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327 unit=_('files'), total=total) |
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328 repo.ui.progress(_('archiving'), None) |
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329 |
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330 if subrepos: |
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331 for subpath in sorted(ctx.substate): |
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332 sub = ctx.workingsub(subpath) |
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333 submatch = matchmod.subdirmatcher(subpath, matchfn) |
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334 total += sub.archive(archiver, prefix, submatch, decode) |
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335 |
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336 if total == 0: |
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337 raise error.Abort(_('no files match the archive pattern')) |
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338 |
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339 archiver.done() |
18967
88d1b59f6906
archive: raise error.Abort if the file pattern matches no files
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
18364
diff
changeset
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340 return total |