Mercurial > hg
annotate mercurial/archival.py @ 41722:37b33c34bf4f
templatekw: add a {negrev} keyword
Revision numbers are getting much maligned for two reasons: they are
too long in large repos and users get confused by their local-only
nature. It just occurred to me that negative revision numbers avoid
both of those problems. Since negative revision numbers change
whenever the repo changes, it's much more obvious that they are a
local-only convenience. Additionally, for the recent commits that we
usually care about the most, negative revision numbers are always near
zero.
This commit adds a negrev templatekw to more easily expose negative
revision numbers. It's not easy to reliably produce this output with
existing keywords due to hidden commits while at the same time
ensuring good performance.
author | Jordi Gutiérrez Hermoso <jordigh@octave.org> |
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date | Fri, 15 Feb 2019 14:43:31 -0500 |
parents | 3d9d5e612e67 |
children | c04e0836f039 |
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 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 from .node import ( |
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20 nullrev, |
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21 ) |
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22 |
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23 from . import ( |
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24 error, |
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25 formatter, |
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26 match as matchmod, |
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27 pycompat, |
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28 scmutil, |
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29 util, |
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30 vfs as vfsmod, |
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31 ) |
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32 stringio = util.stringio |
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33 |
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34 # from unzip source code: |
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35 _UNX_IFREG = 0x8000 |
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36 _UNX_IFLNK = 0xa000 |
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37 |
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38 def tidyprefix(dest, kind, prefix): |
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39 '''choose prefix to use for names in archive. make sure prefix is |
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40 safe for consumers.''' |
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41 |
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42 if prefix: |
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43 prefix = util.normpath(prefix) |
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44 else: |
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45 if not isinstance(dest, bytes): |
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46 raise ValueError('dest must be string if no prefix') |
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47 prefix = os.path.basename(dest) |
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48 lower = prefix.lower() |
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49 for sfx in exts.get(kind, []): |
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50 if lower.endswith(sfx): |
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51 prefix = prefix[:-len(sfx)] |
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52 break |
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53 lpfx = os.path.normpath(util.localpath(prefix)) |
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54 prefix = util.pconvert(lpfx) |
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55 if not prefix.endswith('/'): |
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56 prefix += '/' |
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57 # Drop the leading '.' path component if present, so Windows can read the |
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58 # zip files (issue4634) |
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59 if prefix.startswith('./'): |
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60 prefix = prefix[2:] |
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61 if prefix.startswith('../') or os.path.isabs(lpfx) or '/../' in prefix: |
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62 raise error.Abort(_('archive prefix contains illegal components')) |
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63 return prefix |
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64 |
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65 exts = { |
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66 'tar': ['.tar'], |
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67 'tbz2': ['.tbz2', '.tar.bz2'], |
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68 'tgz': ['.tgz', '.tar.gz'], |
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69 'zip': ['.zip'], |
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70 } |
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71 |
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72 def guesskind(dest): |
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73 for kind, extensions in exts.iteritems(): |
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74 if any(dest.endswith(ext) for ext in extensions): |
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75 return kind |
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76 return None |
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77 |
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78 def _rootctx(repo): |
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79 # repo[0] may be hidden |
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80 for rev in repo: |
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81 return repo[rev] |
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82 return repo[nullrev] |
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83 |
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84 # {tags} on ctx includes local tags and 'tip', with no current way to limit |
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85 # that to global tags. Therefore, use {latesttag} as a substitute when |
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86 # the distance is 0, since that will be the list of global tags on ctx. |
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87 _defaultmetatemplate = br''' |
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88 repo: {root} |
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89 node: {ifcontains(rev, revset("wdir()"), "{p1node}{dirty}", "{node}")} |
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90 branch: {branch|utf8} |
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91 {ifeq(latesttagdistance, 0, join(latesttag % "tag: {tag}", "\n"), |
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92 separate("\n", |
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93 join(latesttag % "latesttag: {tag}", "\n"), |
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94 "latesttagdistance: {latesttagdistance}", |
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95 "changessincelatesttag: {changessincelatesttag}"))} |
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96 '''[1:] # drop leading '\n' |
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97 |
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98 def buildmetadata(ctx): |
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99 '''build content of .hg_archival.txt''' |
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100 repo = ctx.repo() |
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101 |
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102 opts = { |
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103 'template': repo.ui.config('experimental', 'archivemetatemplate', |
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104 _defaultmetatemplate) |
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105 } |
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106 |
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107 out = util.stringio() |
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108 |
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109 fm = formatter.formatter(repo.ui, out, 'archive', opts) |
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110 fm.startitem() |
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111 fm.context(ctx=ctx) |
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112 fm.data(root=_rootctx(repo).hex()) |
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113 |
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114 if ctx.rev() is None: |
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115 dirty = '' |
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116 if ctx.dirty(missing=True): |
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117 dirty = '+' |
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118 fm.data(dirty=dirty) |
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119 fm.end() |
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120 |
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121 return out.getvalue() |
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122 |
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123 class tarit(object): |
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124 '''write archive to tar file or stream. can write uncompressed, |
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125 or compress with gzip or bzip2.''' |
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126 |
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127 class GzipFileWithTime(gzip.GzipFile): |
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128 |
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129 def __init__(self, *args, **kw): |
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130 timestamp = None |
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131 if r'timestamp' in kw: |
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132 timestamp = kw.pop(r'timestamp') |
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133 if timestamp is None: |
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134 self.timestamp = time.time() |
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135 else: |
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136 self.timestamp = timestamp |
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137 gzip.GzipFile.__init__(self, *args, **kw) |
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138 |
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139 def _write_gzip_header(self): |
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140 self.fileobj.write('\037\213') # magic header |
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141 self.fileobj.write('\010') # compression method |
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142 fname = self.name |
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143 if fname and fname.endswith('.gz'): |
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144 fname = fname[:-3] |
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145 flags = 0 |
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146 if fname: |
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147 flags = gzip.FNAME |
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148 self.fileobj.write(pycompat.bytechr(flags)) |
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149 gzip.write32u(self.fileobj, int(self.timestamp)) |
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150 self.fileobj.write('\002') |
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151 self.fileobj.write('\377') |
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152 if fname: |
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153 self.fileobj.write(fname + '\000') |
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154 |
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155 def __init__(self, dest, mtime, kind=''): |
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156 self.mtime = mtime |
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157 self.fileobj = None |
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158 |
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159 def taropen(mode, name='', fileobj=None): |
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160 if kind == 'gz': |
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161 mode = mode[0:1] |
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162 if not fileobj: |
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164 gzfileobj = self.GzipFileWithTime(name, |
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165 pycompat.sysstr(mode + 'b'), |
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166 zlib.Z_BEST_COMPRESSION, |
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167 fileobj, timestamp=mtime) |
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168 self.fileobj = gzfileobj |
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169 return tarfile.TarFile.taropen( |
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170 name, pycompat.sysstr(mode), gzfileobj) |
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171 else: |
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172 return tarfile.open( |
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173 name, pycompat.sysstr(mode + kind), fileobj) |
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174 |
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175 if isinstance(dest, bytes): |
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176 self.z = taropen('w:', name=dest) |
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177 else: |
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178 self.z = taropen('w|', fileobj=dest) |
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179 |
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180 def addfile(self, name, mode, islink, data): |
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181 name = pycompat.fsdecode(name) |
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182 i = tarfile.TarInfo(name) |
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183 i.mtime = self.mtime |
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184 i.size = len(data) |
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185 if islink: |
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186 i.type = tarfile.SYMTYPE |
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187 i.mode = 0o777 |
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188 i.linkname = pycompat.fsdecode(data) |
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189 data = None |
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190 i.size = 0 |
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191 else: |
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192 i.mode = mode |
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193 data = stringio(data) |
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194 self.z.addfile(i, data) |
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195 |
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196 def done(self): |
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197 self.z.close() |
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198 if self.fileobj: |
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199 self.fileobj.close() |
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200 |
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201 class zipit(object): |
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202 '''write archive to zip file or stream. can write uncompressed, |
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203 or compressed with deflate.''' |
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204 |
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205 def __init__(self, dest, mtime, compress=True): |
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206 if isinstance(dest, bytes): |
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207 dest = pycompat.fsdecode(dest) |
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208 self.z = zipfile.ZipFile(dest, r'w', |
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209 compress and zipfile.ZIP_DEFLATED or |
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210 zipfile.ZIP_STORED) |
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211 |
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212 # Python's zipfile module emits deprecation warnings if we try |
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213 # to store files with a date before 1980. |
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214 epoch = 315532800 # calendar.timegm((1980, 1, 1, 0, 0, 0, 1, 1, 0)) |
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215 if mtime < epoch: |
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216 mtime = epoch |
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217 |
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218 self.mtime = mtime |
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219 self.date_time = time.gmtime(mtime)[:6] |
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220 |
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221 def addfile(self, name, mode, islink, data): |
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222 i = zipfile.ZipInfo(pycompat.fsdecode(name), self.date_time) |
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223 i.compress_type = self.z.compression |
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224 # unzip will not honor unix file modes unless file creator is |
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225 # set to unix (id 3). |
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226 i.create_system = 3 |
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227 ftype = _UNX_IFREG |
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228 if islink: |
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229 mode = 0o777 |
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230 ftype = _UNX_IFLNK |
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231 i.external_attr = (mode | ftype) << 16 |
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232 # add "extended-timestamp" extra block, because zip archives |
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233 # without this will be extracted with unexpected timestamp, |
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234 # if TZ is not configured as GMT |
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235 i.extra += struct.pack('<hhBl', |
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236 0x5455, # block type: "extended-timestamp" |
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237 1 + 4, # size of this block |
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238 1, # "modification time is present" |
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239 int(self.mtime)) # last modification (UTC) |
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240 self.z.writestr(i, data) |
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241 |
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242 def done(self): |
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243 self.z.close() |
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244 |
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245 class fileit(object): |
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246 '''write archive as files in directory.''' |
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247 |
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248 def __init__(self, name, mtime): |
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249 self.basedir = name |
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250 self.opener = vfsmod.vfs(self.basedir) |
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251 self.mtime = mtime |
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252 |
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253 def addfile(self, name, mode, islink, data): |
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254 if islink: |
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255 self.opener.symlink(data, name) |
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256 return |
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257 f = self.opener(name, "w", atomictemp=False) |
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258 f.write(data) |
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259 f.close() |
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260 destfile = os.path.join(self.basedir, name) |
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261 os.chmod(destfile, mode) |
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262 if self.mtime is not None: |
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263 os.utime(destfile, (self.mtime, self.mtime)) |
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264 |
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265 def done(self): |
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266 pass |
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267 |
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268 archivers = { |
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269 'files': fileit, |
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270 'tar': tarit, |
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271 'tbz2': lambda name, mtime: tarit(name, mtime, 'bz2'), |
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272 'tgz': lambda name, mtime: tarit(name, mtime, 'gz'), |
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273 'uzip': lambda name, mtime: zipit(name, mtime, False), |
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274 'zip': zipit, |
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275 } |
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276 |
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277 def archive(repo, dest, node, kind, decode=True, match=None, |
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278 prefix='', mtime=None, subrepos=False): |
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279 '''create archive of repo as it was at node. |
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280 |
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281 dest can be name of directory, name of archive file, or file |
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282 object to write archive to. |
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283 |
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284 kind is type of archive to create. |
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285 |
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286 decode tells whether to put files through decode filters from |
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287 hgrc. |
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288 |
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289 match is a matcher to filter names of files to write to archive. |
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290 |
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291 prefix is name of path to put before every archive member. |
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292 |
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293 mtime is the modified time, in seconds, or None to use the changeset time. |
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294 |
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295 subrepos tells whether to include subrepos. |
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296 ''' |
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297 |
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298 if kind == 'files': |
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299 if prefix: |
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300 raise error.Abort(_('cannot give prefix when archiving to files')) |
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301 else: |
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302 prefix = tidyprefix(dest, kind, prefix) |
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303 |
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304 def write(name, mode, islink, getdata): |
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305 data = getdata() |
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306 if decode: |
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307 data = repo.wwritedata(name, data) |
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308 archiver.addfile(prefix + name, mode, islink, data) |
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309 |
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310 if kind not in archivers: |
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311 raise error.Abort(_("unknown archive type '%s'") % kind) |
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312 |
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313 ctx = repo[node] |
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314 archiver = archivers[kind](dest, mtime or ctx.date()[0]) |
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315 |
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316 if not match: |
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317 match = scmutil.matchall(repo) |
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318 |
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319 if repo.ui.configbool("ui", "archivemeta"): |
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320 name = '.hg_archival.txt' |
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321 if match(name): |
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322 write(name, 0o644, False, lambda: buildmetadata(ctx)) |
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323 |
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324 files = [f for f in ctx.manifest().matches(match)] |
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325 total = len(files) |
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326 if total: |
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327 files.sort() |
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328 scmutil.prefetchfiles(repo, [ctx.rev()], |
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329 scmutil.matchfiles(repo, files)) |
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330 progress = repo.ui.makeprogress(_('archiving'), unit=_('files'), |
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331 total=total) |
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332 progress.update(0) |
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333 for f in files: |
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334 ff = ctx.flags(f) |
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335 write(f, 'x' in ff and 0o755 or 0o644, 'l' in ff, ctx[f].data) |
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changeset
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336 progress.increment(item=f) |
1a2ff11e8a88
archival: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents:
37762
diff
changeset
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337 progress.complete() |
12323
f00953d9533c
subrepo: add support for 'hg archive'
Martin Geisler <mg@aragost.com>
parents:
12321
diff
changeset
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338 |
f00953d9533c
subrepo: add support for 'hg archive'
Martin Geisler <mg@aragost.com>
parents:
12321
diff
changeset
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339 if subrepos: |
18364
6252b4f1c4b4
subrepos: process subrepos in sorted order
Mads Kiilerich <mads@kiilerich.com>
parents:
18344
diff
changeset
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340 for subpath in sorted(ctx.substate): |
25601
3ec8351fa6ed
archive: support 'wdir()'
Matt Harbison <matt_harbison@yahoo.com>
parents:
25149
diff
changeset
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341 sub = ctx.workingsub(subpath) |
40407
3d76a8e627a6
archive: change "matcnfn" argument to a real matcher
Martin von Zweigbergk <martinvonz@google.com>
parents:
40247
diff
changeset
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342 submatch = matchmod.subdirmatcher(subpath, match) |
41631
3d9d5e612e67
subrepo: adjust subrepo prefix before calling subrepo.archive() (API)
Martin von Zweigbergk <martinvonz@google.com>
parents:
41208
diff
changeset
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343 subprefix = prefix + subpath + '/' |
3d9d5e612e67
subrepo: adjust subrepo prefix before calling subrepo.archive() (API)
Martin von Zweigbergk <martinvonz@google.com>
parents:
41208
diff
changeset
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344 total += sub.archive(archiver, subprefix, submatch, decode) |
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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345 |
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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346 if total == 0: |
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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347 raise error.Abort(_('no files match the archive pattern')) |
12323
f00953d9533c
subrepo: add support for 'hg archive'
Martin Geisler <mg@aragost.com>
parents:
12321
diff
changeset
|
348 |
2112
2b03c6733efa
add "archive" command, like "cvs export" only better.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
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349 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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350 return total |