Mercurial > hg
annotate mercurial/archival.py @ 49710:30ac702a7488
path: pass `path` to `peer` in `hg summary`
We directly use the `path` object to build the `peer` object.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Thu, 01 Dec 2022 02:11:21 +0100 |
parents | 642e31cb55f0 |
children | 55d45d0de4e7 |
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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8 |
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9 import gzip |
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10 import os |
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11 import struct |
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12 import tarfile |
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13 import time |
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14 import zipfile |
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15 import zlib |
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16 |
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17 from .i18n import _ |
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18 from .node import nullrev |
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19 from .pycompat import open |
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20 |
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21 from . import ( |
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22 error, |
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23 formatter, |
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24 match as matchmod, |
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25 pycompat, |
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26 scmutil, |
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27 util, |
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28 vfs as vfsmod, |
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29 ) |
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30 |
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31 from .utils import stringutil |
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32 |
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33 stringio = util.stringio |
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34 |
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35 # from unzip source code: |
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36 _UNX_IFREG = 0x8000 |
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37 _UNX_IFLNK = 0xA000 |
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38 |
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39 |
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40 def tidyprefix(dest, kind, prefix): |
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41 """choose prefix to use for names in archive. make sure prefix is |
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42 safe for consumers.""" |
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43 |
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44 if prefix: |
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45 prefix = util.normpath(prefix) |
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46 else: |
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47 if not isinstance(dest, bytes): |
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48 raise ValueError(b'dest must be string if no prefix') |
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49 prefix = os.path.basename(dest) |
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50 lower = prefix.lower() |
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51 for sfx in exts.get(kind, []): |
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52 if lower.endswith(sfx): |
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53 prefix = prefix[: -len(sfx)] |
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54 break |
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55 lpfx = os.path.normpath(util.localpath(prefix)) |
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56 prefix = util.pconvert(lpfx) |
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57 if not prefix.endswith(b'/'): |
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58 prefix += b'/' |
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59 # Drop the leading '.' path component if present, so Windows can read the |
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60 # zip files (issue4634) |
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61 if prefix.startswith(b'./'): |
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62 prefix = prefix[2:] |
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63 if prefix.startswith(b'../') or os.path.isabs(lpfx) or b'/../' in prefix: |
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64 raise error.Abort(_(b'archive prefix contains illegal components')) |
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65 return prefix |
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66 |
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67 |
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68 exts = { |
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69 b'tar': [b'.tar'], |
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70 b'tbz2': [b'.tbz2', b'.tar.bz2'], |
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71 b'tgz': [b'.tgz', b'.tar.gz'], |
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72 b'zip': [b'.zip'], |
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73 b'txz': [b'.txz', b'.tar.xz'], |
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74 } |
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75 |
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76 |
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77 def guesskind(dest): |
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78 for kind, extensions in exts.items(): |
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79 if any(dest.endswith(ext) for ext in extensions): |
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80 return kind |
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81 return None |
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82 |
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83 |
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84 def _rootctx(repo): |
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85 # repo[0] may be hidden |
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86 for rev in repo: |
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87 return repo[rev] |
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88 return repo[nullrev] |
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89 |
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90 |
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91 # {tags} on ctx includes local tags and 'tip', with no current way to limit |
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92 # that to global tags. Therefore, use {latesttag} as a substitute when |
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93 # the distance is 0, since that will be the list of global tags on ctx. |
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94 _defaultmetatemplate = br''' |
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95 repo: {root} |
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96 node: {ifcontains(rev, revset("wdir()"), "{p1node}{dirty}", "{node}")} |
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97 branch: {branch|utf8} |
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98 {ifeq(latesttagdistance, 0, join(latesttag % "tag: {tag}", "\n"), |
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99 separate("\n", |
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100 join(latesttag % "latesttag: {tag}", "\n"), |
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101 "latesttagdistance: {latesttagdistance}", |
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102 "changessincelatesttag: {changessincelatesttag}"))} |
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103 '''[ |
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104 1: |
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105 ] # drop leading '\n' |
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106 |
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107 |
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108 def buildmetadata(ctx): |
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109 '''build content of .hg_archival.txt''' |
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110 repo = ctx.repo() |
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111 |
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112 opts = { |
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113 b'template': repo.ui.config( |
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114 b'experimental', b'archivemetatemplate', _defaultmetatemplate |
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115 ) |
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116 } |
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117 |
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118 out = util.stringio() |
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119 |
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120 fm = formatter.formatter(repo.ui, out, b'archive', opts) |
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121 fm.startitem() |
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122 fm.context(ctx=ctx) |
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123 fm.data(root=_rootctx(repo).hex()) |
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124 |
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125 if ctx.rev() is None: |
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126 dirty = b'' |
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127 if ctx.dirty(missing=True): |
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128 dirty = b'+' |
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129 fm.data(dirty=dirty) |
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130 fm.end() |
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131 |
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132 return out.getvalue() |
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133 |
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134 |
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135 class tarit: |
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136 """write archive to tar file or stream. can write uncompressed, |
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137 or compress with gzip or bzip2.""" |
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138 |
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139 def __init__(self, dest, mtime, kind=b''): |
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140 self.mtime = mtime |
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141 self.fileobj = None |
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142 |
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143 def taropen(mode, name=b'', fileobj=None): |
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144 if kind == b'gz': |
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145 mode = mode[0:1] |
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146 if not fileobj: |
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147 fileobj = open(name, mode + b'b') |
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148 gzfileobj = gzip.GzipFile( |
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149 name, |
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150 pycompat.sysstr(mode + b'b'), |
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151 zlib.Z_BEST_COMPRESSION, |
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152 fileobj, |
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153 mtime=mtime, |
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154 ) |
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155 self.fileobj = gzfileobj |
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156 return ( |
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157 tarfile.TarFile.taropen( # pytype: disable=attribute-error |
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158 name, pycompat.sysstr(mode), gzfileobj |
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159 ) |
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160 ) |
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161 else: |
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162 try: |
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163 return tarfile.open( |
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164 name, pycompat.sysstr(mode + kind), fileobj |
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165 ) |
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166 except tarfile.CompressionError as e: |
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167 raise error.Abort(stringutil.forcebytestr(e)) |
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168 |
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169 if isinstance(dest, bytes): |
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170 self.z = taropen(b'w:', name=dest) |
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171 else: |
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172 self.z = taropen(b'w|', fileobj=dest) |
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173 |
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174 def addfile(self, name, mode, islink, data): |
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175 name = pycompat.fsdecode(name) |
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176 i = tarfile.TarInfo(name) |
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177 i.mtime = self.mtime |
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178 i.size = len(data) |
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179 if islink: |
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180 i.type = tarfile.SYMTYPE |
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181 i.mode = 0o777 |
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182 i.linkname = pycompat.fsdecode(data) |
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183 data = None |
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184 i.size = 0 |
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185 else: |
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186 i.mode = mode |
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187 data = stringio(data) |
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188 self.z.addfile(i, data) |
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189 |
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190 def done(self): |
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191 self.z.close() |
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192 if self.fileobj: |
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193 self.fileobj.close() |
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194 |
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195 |
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196 class zipit: |
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197 """write archive to zip file or stream. can write uncompressed, |
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198 or compressed with deflate.""" |
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199 |
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200 def __init__(self, dest, mtime, compress=True): |
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201 if isinstance(dest, bytes): |
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202 dest = pycompat.fsdecode(dest) |
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203 self.z = zipfile.ZipFile( |
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204 dest, 'w', compress and zipfile.ZIP_DEFLATED or zipfile.ZIP_STORED |
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205 ) |
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206 |
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207 # Python's zipfile module emits deprecation warnings if we try |
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208 # to store files with a date before 1980. |
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209 epoch = 315532800 # calendar.timegm((1980, 1, 1, 0, 0, 0, 1, 1, 0)) |
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210 if mtime < epoch: |
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211 mtime = epoch |
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212 |
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213 self.mtime = mtime |
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214 self.date_time = time.gmtime(mtime)[:6] |
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215 |
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216 def addfile(self, name, mode, islink, data): |
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217 i = zipfile.ZipInfo(pycompat.fsdecode(name), self.date_time) |
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218 i.compress_type = self.z.compression # pytype: disable=attribute-error |
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219 # unzip will not honor unix file modes unless file creator is |
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220 # set to unix (id 3). |
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221 i.create_system = 3 |
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222 ftype = _UNX_IFREG |
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223 if islink: |
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224 mode = 0o777 |
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225 ftype = _UNX_IFLNK |
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226 i.external_attr = (mode | ftype) << 16 |
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227 # add "extended-timestamp" extra block, because zip archives |
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228 # without this will be extracted with unexpected timestamp, |
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229 # if TZ is not configured as GMT |
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230 i.extra += struct.pack( |
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231 b'<hhBl', |
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232 0x5455, # block type: "extended-timestamp" |
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233 1 + 4, # size of this block |
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234 1, # "modification time is present" |
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235 int(self.mtime), |
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236 ) # last modification (UTC) |
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237 self.z.writestr(i, data) |
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238 |
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239 def done(self): |
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240 self.z.close() |
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241 |
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242 |
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243 class fileit: |
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244 '''write archive as files in directory.''' |
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245 |
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246 def __init__(self, name, mtime): |
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247 self.basedir = name |
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248 self.opener = vfsmod.vfs(self.basedir) |
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249 self.mtime = mtime |
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250 |
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251 def addfile(self, name, mode, islink, data): |
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252 if islink: |
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253 self.opener.symlink(data, name) |
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254 return |
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255 f = self.opener(name, b"w", atomictemp=False) |
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256 f.write(data) |
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257 f.close() |
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258 destfile = os.path.join(self.basedir, name) |
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259 os.chmod(destfile, mode) |
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260 if self.mtime is not None: |
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261 os.utime(destfile, (self.mtime, self.mtime)) |
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262 |
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263 def done(self): |
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264 pass |
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265 |
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266 |
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267 archivers = { |
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268 b'files': fileit, |
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269 b'tar': tarit, |
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270 b'tbz2': lambda name, mtime: tarit(name, mtime, b'bz2'), |
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271 b'tgz': lambda name, mtime: tarit(name, mtime, b'gz'), |
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272 b'txz': lambda name, mtime: tarit(name, mtime, b'xz'), |
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273 b'uzip': lambda name, mtime: zipit(name, mtime, False), |
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274 b'zip': zipit, |
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275 } |
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276 |
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277 |
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278 def archive( |
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279 repo, |
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280 dest, |
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281 node, |
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282 kind, |
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283 decode=True, |
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284 match=None, |
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285 prefix=b'', |
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286 mtime=None, |
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287 subrepos=False, |
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288 ): |
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289 """create archive of repo as it was at node. |
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290 |
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291 dest can be name of directory, name of archive file, or file |
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292 object to write archive to. |
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293 |
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294 kind is type of archive to create. |
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295 |
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296 decode tells whether to put files through decode filters from |
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297 hgrc. |
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298 |
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299 match is a matcher to filter names of files to write to archive. |
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300 |
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301 prefix is name of path to put before every archive member. |
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302 |
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303 mtime is the modified time, in seconds, or None to use the changeset time. |
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304 |
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305 subrepos tells whether to include subrepos. |
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306 """ |
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307 |
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308 if kind == b'files': |
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309 if prefix: |
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310 raise error.Abort(_(b'cannot give prefix when archiving to files')) |
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311 else: |
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312 prefix = tidyprefix(dest, kind, prefix) |
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313 |
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314 def write(name, mode, islink, getdata): |
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315 data = getdata() |
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316 if decode: |
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317 data = repo.wwritedata(name, data) |
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318 archiver.addfile(prefix + name, mode, islink, data) |
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319 |
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320 if kind not in archivers: |
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321 raise error.Abort(_(b"unknown archive type '%s'") % kind) |
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322 |
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323 ctx = repo[node] |
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324 archiver = archivers[kind](dest, mtime or ctx.date()[0]) |
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325 |
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326 if not match: |
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327 match = scmutil.matchall(repo) |
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328 |
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329 if repo.ui.configbool(b"ui", b"archivemeta"): |
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330 name = b'.hg_archival.txt' |
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331 if match(name): |
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332 write(name, 0o644, False, lambda: buildmetadata(ctx)) |
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333 |
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334 files = list(ctx.manifest().walk(match)) |
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335 total = len(files) |
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336 if total: |
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337 files.sort() |
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338 scmutil.prefetchfiles( |
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339 repo, [(ctx.rev(), scmutil.matchfiles(repo, files))] |
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340 ) |
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341 progress = repo.ui.makeprogress( |
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342 _(b'archiving'), unit=_(b'files'), total=total |
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343 ) |
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344 progress.update(0) |
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345 for f in files: |
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346 ff = ctx.flags(f) |
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347 write(f, b'x' in ff and 0o755 or 0o644, b'l' in ff, ctx[f].data) |
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348 progress.increment(item=f) |
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349 progress.complete() |
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350 |
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351 if subrepos: |
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352 for subpath in sorted(ctx.substate): |
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353 sub = ctx.workingsub(subpath) |
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354 submatch = matchmod.subdirmatcher(subpath, match) |
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355 subprefix = prefix + subpath + b'/' |
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356 total += sub.archive(archiver, subprefix, submatch, decode) |
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357 |
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358 if total == 0: |
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359 raise error.Abort(_(b'no files match the archive pattern')) |
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360 |
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361 archiver.done() |
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362 return total |