Mercurial > hg
annotate mercurial/exchange.py @ 21555:e303b8ea84b3
exchange: drop dead code
This code have been factorised and moved in its own function by 7d0bbb6dd730. We
actually read the result of this other computation in the very line before the
deleted block. I somehow forgot to remove the original code, but it is now
dead. Good bye duplicated computation.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
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date | Thu, 22 May 2014 16:27:16 -0700 |
parents | 7bcf4adadd2d |
children | 5e08f3b65510 |
rev | line source |
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1 # exchange.py - utility to exchange data between repos. |
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2 # |
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3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from i18n import _ |
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9 from node import hex, nullid |
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10 import errno, urllib |
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11 import util, scmutil, changegroup, base85, error |
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12 import discovery, phases, obsolete, bookmarks, bundle2 |
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13 |
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14 def readbundle(ui, fh, fname, vfs=None): |
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15 header = changegroup.readexactly(fh, 4) |
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16 |
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17 alg = None |
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18 if not fname: |
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19 fname = "stream" |
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20 if not header.startswith('HG') and header.startswith('\0'): |
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21 fh = changegroup.headerlessfixup(fh, header) |
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22 header = "HG10" |
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23 alg = 'UN' |
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24 elif vfs: |
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25 fname = vfs.join(fname) |
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26 |
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27 magic, version = header[0:2], header[2:4] |
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28 |
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29 if magic != 'HG': |
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30 raise util.Abort(_('%s: not a Mercurial bundle') % fname) |
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31 if version == '10': |
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32 if alg is None: |
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33 alg = changegroup.readexactly(fh, 2) |
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34 return changegroup.unbundle10(fh, alg) |
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35 elif version == '2X': |
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36 return bundle2.unbundle20(ui, fh, header=magic + version) |
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37 else: |
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38 raise util.Abort(_('%s: unknown bundle version %s') % (fname, version)) |
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39 |
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40 |
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41 class pushoperation(object): |
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42 """A object that represent a single push operation |
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43 |
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44 It purpose is to carry push related state and very common operation. |
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45 |
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46 A new should be created at the beginning of each push and discarded |
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47 afterward. |
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48 """ |
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49 |
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50 def __init__(self, repo, remote, force=False, revs=None, newbranch=False): |
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51 # repo we push from |
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52 self.repo = repo |
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53 self.ui = repo.ui |
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54 # repo we push to |
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55 self.remote = remote |
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56 # force option provided |
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57 self.force = force |
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58 # revs to be pushed (None is "all") |
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59 self.revs = revs |
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60 # allow push of new branch |
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61 self.newbranch = newbranch |
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62 # did a local lock get acquired? |
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63 self.locallocked = None |
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64 # Integer version of the push result |
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65 # - None means nothing to push |
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66 # - 0 means HTTP error |
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67 # - 1 means we pushed and remote head count is unchanged *or* |
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68 # we have outgoing changesets but refused to push |
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69 # - other values as described by addchangegroup() |
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70 self.ret = None |
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71 # discover.outgoing object (contains common and outgoing data) |
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72 self.outgoing = None |
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73 # all remote heads before the push |
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74 self.remoteheads = None |
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75 # testable as a boolean indicating if any nodes are missing locally. |
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76 self.incoming = None |
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77 # set of all heads common after changeset bundle push |
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78 self.commonheads = None |
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79 |
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80 def push(repo, remote, force=False, revs=None, newbranch=False): |
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81 '''Push outgoing changesets (limited by revs) from a local |
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82 repository to remote. Return an integer: |
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83 - None means nothing to push |
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84 - 0 means HTTP error |
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85 - 1 means we pushed and remote head count is unchanged *or* |
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86 we have outgoing changesets but refused to push |
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87 - other values as described by addchangegroup() |
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88 ''' |
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89 pushop = pushoperation(repo, remote, force, revs, newbranch) |
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90 if pushop.remote.local(): |
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91 missing = (set(pushop.repo.requirements) |
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92 - pushop.remote.local().supported) |
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93 if missing: |
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94 msg = _("required features are not" |
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95 " supported in the destination:" |
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96 " %s") % (', '.join(sorted(missing))) |
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97 raise util.Abort(msg) |
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98 |
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99 # there are two ways to push to remote repo: |
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100 # |
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101 # addchangegroup assumes local user can lock remote |
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102 # repo (local filesystem, old ssh servers). |
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103 # |
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104 # unbundle assumes local user cannot lock remote repo (new ssh |
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105 # servers, http servers). |
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106 |
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107 if not pushop.remote.canpush(): |
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108 raise util.Abort(_("destination does not support push")) |
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109 # get local lock as we might write phase data |
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110 locallock = None |
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111 try: |
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112 locallock = pushop.repo.lock() |
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113 pushop.locallocked = True |
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114 except IOError, err: |
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115 pushop.locallocked = False |
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116 if err.errno != errno.EACCES: |
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117 raise |
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118 # source repo cannot be locked. |
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119 # We do not abort the push, but just disable the local phase |
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120 # synchronisation. |
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121 msg = 'cannot lock source repository: %s\n' % err |
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122 pushop.ui.debug(msg) |
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123 try: |
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124 pushop.repo.checkpush(pushop) |
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125 lock = None |
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126 unbundle = pushop.remote.capable('unbundle') |
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127 if not unbundle: |
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128 lock = pushop.remote.lock() |
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129 try: |
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130 _pushdiscovery(pushop) |
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131 if _pushcheckoutgoing(pushop): |
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132 pushop.repo.prepushoutgoinghooks(pushop.repo, |
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133 pushop.remote, |
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134 pushop.outgoing) |
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135 if (pushop.repo.ui.configbool('experimental', 'bundle2-exp', |
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136 False) |
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137 and pushop.remote.capable('bundle2-exp')): |
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138 _pushbundle2(pushop) |
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139 else: |
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140 _pushchangeset(pushop) |
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141 _pushcomputecommonheads(pushop) |
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142 _pushsyncphase(pushop) |
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143 _pushobsolete(pushop) |
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144 finally: |
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145 if lock is not None: |
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146 lock.release() |
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147 finally: |
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148 if locallock is not None: |
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149 locallock.release() |
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150 |
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151 _pushbookmark(pushop) |
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152 return pushop.ret |
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153 |
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154 def _pushdiscovery(pushop): |
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155 # discovery |
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156 unfi = pushop.repo.unfiltered() |
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157 fci = discovery.findcommonincoming |
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158 commoninc = fci(unfi, pushop.remote, force=pushop.force) |
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159 common, inc, remoteheads = commoninc |
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160 fco = discovery.findcommonoutgoing |
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161 outgoing = fco(unfi, pushop.remote, onlyheads=pushop.revs, |
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162 commoninc=commoninc, force=pushop.force) |
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163 pushop.outgoing = outgoing |
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164 pushop.remoteheads = remoteheads |
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165 pushop.incoming = inc |
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166 |
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167 def _pushcheckoutgoing(pushop): |
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168 outgoing = pushop.outgoing |
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169 unfi = pushop.repo.unfiltered() |
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170 if not outgoing.missing: |
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171 # nothing to push |
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172 scmutil.nochangesfound(unfi.ui, unfi, outgoing.excluded) |
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173 return False |
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174 # something to push |
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175 if not pushop.force: |
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176 # if repo.obsstore == False --> no obsolete |
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177 # then, save the iteration |
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178 if unfi.obsstore: |
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179 # this message are here for 80 char limit reason |
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180 mso = _("push includes obsolete changeset: %s!") |
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181 mst = "push includes %s changeset: %s!" |
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182 # plain versions for i18n tool to detect them |
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183 _("push includes unstable changeset: %s!") |
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184 _("push includes bumped changeset: %s!") |
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185 _("push includes divergent changeset: %s!") |
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186 # If we are to push if there is at least one |
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187 # obsolete or unstable changeset in missing, at |
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188 # least one of the missinghead will be obsolete or |
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189 # unstable. So checking heads only is ok |
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190 for node in outgoing.missingheads: |
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191 ctx = unfi[node] |
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192 if ctx.obsolete(): |
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193 raise util.Abort(mso % ctx) |
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194 elif ctx.troubled(): |
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195 raise util.Abort(_(mst) |
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196 % (ctx.troubles()[0], |
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197 ctx)) |
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198 newbm = pushop.ui.configlist('bookmarks', 'pushing') |
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199 discovery.checkheads(unfi, pushop.remote, outgoing, |
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200 pushop.remoteheads, |
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201 pushop.newbranch, |
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202 bool(pushop.incoming), |
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203 newbm) |
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204 return True |
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205 |
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206 def _pushbundle2(pushop): |
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207 """push data to the remote using bundle2 |
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208 |
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209 The only currently supported type of data is changegroup but this will |
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210 evolve in the future.""" |
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211 # Send known head to the server for race detection. |
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212 capsblob = urllib.unquote(pushop.remote.capable('bundle2-exp')) |
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213 caps = bundle2.decodecaps(capsblob) |
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214 bundler = bundle2.bundle20(pushop.ui, caps) |
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215 # create reply capability |
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216 capsblob = bundle2.encodecaps(pushop.repo.bundle2caps) |
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217 bundler.addpart(bundle2.bundlepart('b2x:replycaps', data=capsblob)) |
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218 if not pushop.force: |
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219 part = bundle2.bundlepart('B2X:CHECK:HEADS', |
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220 data=iter(pushop.remoteheads)) |
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221 bundler.addpart(part) |
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222 extrainfo = _pushbundle2extraparts(pushop, bundler) |
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223 # add the changegroup bundle |
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224 cg = changegroup.getlocalbundle(pushop.repo, 'push', pushop.outgoing) |
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225 cgpart = bundle2.bundlepart('B2X:CHANGEGROUP', data=cg.getchunks()) |
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226 bundler.addpart(cgpart) |
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227 stream = util.chunkbuffer(bundler.getchunks()) |
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228 try: |
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229 reply = pushop.remote.unbundle(stream, ['force'], 'push') |
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230 except bundle2.UnknownPartError, exc: |
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231 raise util.Abort('missing support for %s' % exc) |
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232 try: |
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233 op = bundle2.processbundle(pushop.repo, reply) |
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234 except bundle2.UnknownPartError, exc: |
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235 raise util.Abort('missing support for %s' % exc) |
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236 cgreplies = op.records.getreplies(cgpart.id) |
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237 assert len(cgreplies['changegroup']) == 1 |
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238 pushop.ret = cgreplies['changegroup'][0]['return'] |
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239 _pushbundle2extrareply(pushop, op, extrainfo) |
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240 |
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241 def _pushbundle2extraparts(pushop, bundler): |
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242 """hook function to let extensions add parts |
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243 |
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244 Return a dict to let extensions pass data to the reply processing. |
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245 """ |
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246 return {} |
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247 |
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248 def _pushbundle2extrareply(pushop, op, extrainfo): |
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249 """hook function to let extensions react to part replies |
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250 |
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251 The dict from _pushbundle2extrareply is fed to this function. |
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252 """ |
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253 pass |
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254 |
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255 def _pushchangeset(pushop): |
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256 """Make the actual push of changeset bundle to remote repo""" |
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257 outgoing = pushop.outgoing |
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258 unbundle = pushop.remote.capable('unbundle') |
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259 # TODO: get bundlecaps from remote |
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260 bundlecaps = None |
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261 # create a changegroup from local |
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262 if pushop.revs is None and not (outgoing.excluded |
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263 or pushop.repo.changelog.filteredrevs): |
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264 # push everything, |
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265 # use the fast path, no race possible on push |
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266 bundler = changegroup.bundle10(pushop.repo, bundlecaps) |
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267 cg = changegroup.getsubset(pushop.repo, |
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268 outgoing, |
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269 bundler, |
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270 'push', |
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271 fastpath=True) |
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272 else: |
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273 cg = changegroup.getlocalbundle(pushop.repo, 'push', outgoing, |
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274 bundlecaps) |
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275 |
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276 # apply changegroup to remote |
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277 if unbundle: |
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278 # local repo finds heads on server, finds out what |
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279 # revs it must push. once revs transferred, if server |
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280 # finds it has different heads (someone else won |
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281 # commit/push race), server aborts. |
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282 if pushop.force: |
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283 remoteheads = ['force'] |
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284 else: |
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285 remoteheads = pushop.remoteheads |
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286 # ssh: return remote's addchangegroup() |
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287 # http: return remote's addchangegroup() or 0 for error |
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288 pushop.ret = pushop.remote.unbundle(cg, remoteheads, |
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289 'push') |
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290 else: |
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291 # we return an integer indicating remote head count |
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292 # change |
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293 pushop.ret = pushop.remote.addchangegroup(cg, 'push', pushop.repo.url()) |
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294 |
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295 def _pushcomputecommonheads(pushop): |
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296 unfi = pushop.repo.unfiltered() |
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297 if pushop.ret: |
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298 # push succeed, synchronize target of the push |
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299 cheads = pushop.outgoing.missingheads |
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300 elif pushop.revs is None: |
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301 # All out push fails. synchronize all common |
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302 cheads = pushop.outgoing.commonheads |
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303 else: |
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304 # I want cheads = heads(::missingheads and ::commonheads) |
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305 # (missingheads is revs with secret changeset filtered out) |
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306 # |
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307 # This can be expressed as: |
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308 # cheads = ( (missingheads and ::commonheads) |
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309 # + (commonheads and ::missingheads))" |
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310 # ) |
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311 # |
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312 # while trying to push we already computed the following: |
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313 # common = (::commonheads) |
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314 # missing = ((commonheads::missingheads) - commonheads) |
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315 # |
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316 # We can pick: |
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317 # * missingheads part of common (::commonheads) |
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318 common = set(pushop.outgoing.common) |
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319 nm = pushop.repo.changelog.nodemap |
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320 cheads = [node for node in pushop.revs if nm[node] in common] |
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321 # and |
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322 # * commonheads parents on missing |
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323 revset = unfi.set('%ln and parents(roots(%ln))', |
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324 pushop.outgoing.commonheads, |
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325 pushop.outgoing.missing) |
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326 cheads.extend(c.node() for c in revset) |
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327 pushop.commonheads = cheads |
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328 |
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329 def _pushsyncphase(pushop): |
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330 """synchronise phase information locally and remotely""" |
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331 unfi = pushop.repo.unfiltered() |
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332 cheads = pushop.commonheads |
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333 # even when we don't push, exchanging phase data is useful |
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334 remotephases = pushop.remote.listkeys('phases') |
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335 if (pushop.ui.configbool('ui', '_usedassubrepo', False) |
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336 and remotephases # server supports phases |
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337 and pushop.ret is None # nothing was pushed |
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338 and remotephases.get('publishing', False)): |
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339 # When: |
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340 # - this is a subrepo push |
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341 # - and remote support phase |
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342 # - and no changeset was pushed |
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343 # - and remote is publishing |
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344 # We may be in issue 3871 case! |
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345 # We drop the possible phase synchronisation done by |
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346 # courtesy to publish changesets possibly locally draft |
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347 # on the remote. |
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348 remotephases = {'publishing': 'True'} |
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349 if not remotephases: # old server or public only reply from non-publishing |
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350 _localphasemove(pushop, cheads) |
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351 # don't push any phase data as there is nothing to push |
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352 else: |
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353 ana = phases.analyzeremotephases(pushop.repo, cheads, |
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354 remotephases) |
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355 pheads, droots = ana |
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356 ### Apply remote phase on local |
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357 if remotephases.get('publishing', False): |
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358 _localphasemove(pushop, cheads) |
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359 else: # publish = False |
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360 _localphasemove(pushop, pheads) |
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361 _localphasemove(pushop, cheads, phases.draft) |
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362 ### Apply local phase on remote |
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363 |
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364 # Get the list of all revs draft on remote by public here. |
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365 # XXX Beware that revset break if droots is not strictly |
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366 # XXX root we may want to ensure it is but it is costly |
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367 outdated = unfi.set('heads((%ln::%ln) and public())', |
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368 droots, cheads) |
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369 for newremotehead in outdated: |
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370 r = pushop.remote.pushkey('phases', |
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371 newremotehead.hex(), |
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372 str(phases.draft), |
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373 str(phases.public)) |
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374 if not r: |
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375 pushop.ui.warn(_('updating %s to public failed!\n') |
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376 % newremotehead) |
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377 |
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378 def _localphasemove(pushop, nodes, phase=phases.public): |
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379 """move <nodes> to <phase> in the local source repo""" |
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380 if pushop.locallocked: |
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381 phases.advanceboundary(pushop.repo, phase, nodes) |
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382 else: |
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383 # repo is not locked, do not change any phases! |
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384 # Informs the user that phases should have been moved when |
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385 # applicable. |
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386 actualmoves = [n for n in nodes if phase < pushop.repo[n].phase()] |
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387 phasestr = phases.phasenames[phase] |
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388 if actualmoves: |
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389 pushop.ui.status(_('cannot lock source repo, skipping ' |
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390 'local %s phase update\n') % phasestr) |
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391 |
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392 def _pushobsolete(pushop): |
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393 """utility function to push obsolete markers to a remote""" |
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394 pushop.ui.debug('try to push obsolete markers to remote\n') |
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395 repo = pushop.repo |
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396 remote = pushop.remote |
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397 if (obsolete._enabled and repo.obsstore and |
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398 'obsolete' in remote.listkeys('namespaces')): |
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399 rslts = [] |
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400 remotedata = repo.listkeys('obsolete') |
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401 for key in sorted(remotedata, reverse=True): |
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402 # reverse sort to ensure we end with dump0 |
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403 data = remotedata[key] |
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404 rslts.append(remote.pushkey('obsolete', key, '', data)) |
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405 if [r for r in rslts if not r]: |
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406 msg = _('failed to push some obsolete markers!\n') |
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407 repo.ui.warn(msg) |
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408 |
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409 def _pushbookmark(pushop): |
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410 """Update bookmark position on remote""" |
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411 ui = pushop.ui |
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412 repo = pushop.repo.unfiltered() |
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413 remote = pushop.remote |
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414 ui.debug("checking for updated bookmarks\n") |
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415 revnums = map(repo.changelog.rev, pushop.revs or []) |
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416 ancestors = [a for a in repo.changelog.ancestors(revnums, inclusive=True)] |
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417 (addsrc, adddst, advsrc, advdst, diverge, differ, invalid |
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418 ) = bookmarks.compare(repo, repo._bookmarks, remote.listkeys('bookmarks'), |
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419 srchex=hex) |
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420 |
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421 for b, scid, dcid in advsrc: |
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422 if ancestors and repo[scid].rev() not in ancestors: |
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423 continue |
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424 if remote.pushkey('bookmarks', b, dcid, scid): |
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425 ui.status(_("updating bookmark %s\n") % b) |
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426 else: |
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427 ui.warn(_('updating bookmark %s failed!\n') % b) |
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428 |
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429 class pulloperation(object): |
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430 """A object that represent a single pull operation |
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431 |
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432 It purpose is to carry push related state and very common operation. |
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433 |
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434 A new should be created at the beginning of each pull and discarded |
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435 afterward. |
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436 """ |
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437 |
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438 def __init__(self, repo, remote, heads=None, force=False): |
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439 # repo we pull into |
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440 self.repo = repo |
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441 # repo we pull from |
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442 self.remote = remote |
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443 # revision we try to pull (None is "all") |
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444 self.heads = heads |
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445 # do we force pull? |
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446 self.force = force |
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447 # the name the pull transaction |
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448 self._trname = 'pull\n' + util.hidepassword(remote.url()) |
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449 # hold the transaction once created |
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450 self._tr = None |
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451 # set of common changeset between local and remote before pull |
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452 self.common = None |
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453 # set of pulled head |
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454 self.rheads = None |
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455 # list of missing changeset to fetch remotely |
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456 self.fetch = None |
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457 # result of changegroup pulling (used as return code by pull) |
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458 self.cgresult = None |
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459 # list of step remaining todo (related to future bundle2 usage) |
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460 self.todosteps = set(['changegroup', 'phases', 'obsmarkers']) |
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461 |
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462 @util.propertycache |
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463 def pulledsubset(self): |
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464 """heads of the set of changeset target by the pull""" |
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465 # compute target subset |
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466 if self.heads is None: |
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467 # We pulled every thing possible |
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468 # sync on everything common |
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469 c = set(self.common) |
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470 ret = list(self.common) |
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471 for n in self.rheads: |
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472 if n not in c: |
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473 ret.append(n) |
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474 return ret |
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475 else: |
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476 # We pulled a specific subset |
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477 # sync on this subset |
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478 return self.heads |
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479 |
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480 def gettransaction(self): |
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481 """get appropriate pull transaction, creating it if needed""" |
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482 if self._tr is None: |
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483 self._tr = self.repo.transaction(self._trname) |
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484 return self._tr |
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485 |
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486 def closetransaction(self): |
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487 """close transaction if created""" |
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488 if self._tr is not None: |
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489 self._tr.close() |
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490 |
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491 def releasetransaction(self): |
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492 """release transaction if created""" |
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493 if self._tr is not None: |
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494 self._tr.release() |
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495 |
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496 def pull(repo, remote, heads=None, force=False): |
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497 pullop = pulloperation(repo, remote, heads, force) |
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498 if pullop.remote.local(): |
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499 missing = set(pullop.remote.requirements) - pullop.repo.supported |
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500 if missing: |
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501 msg = _("required features are not" |
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502 " supported in the destination:" |
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503 " %s") % (', '.join(sorted(missing))) |
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504 raise util.Abort(msg) |
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505 |
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506 lock = pullop.repo.lock() |
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507 try: |
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508 _pulldiscovery(pullop) |
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509 if (pullop.repo.ui.configbool('experimental', 'bundle2-exp', False) |
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510 and pullop.remote.capable('bundle2-exp')): |
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511 _pullbundle2(pullop) |
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512 if 'changegroup' in pullop.todosteps: |
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513 _pullchangeset(pullop) |
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514 if 'phases' in pullop.todosteps: |
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515 _pullphase(pullop) |
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516 if 'obsmarkers' in pullop.todosteps: |
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517 _pullobsolete(pullop) |
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518 pullop.closetransaction() |
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519 finally: |
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520 pullop.releasetransaction() |
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521 lock.release() |
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522 |
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523 return pullop.cgresult |
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524 |
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525 def _pulldiscovery(pullop): |
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526 """discovery phase for the pull |
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527 |
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528 Current handle changeset discovery only, will change handle all discovery |
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529 at some point.""" |
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530 tmp = discovery.findcommonincoming(pullop.repo.unfiltered(), |
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531 pullop.remote, |
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532 heads=pullop.heads, |
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533 force=pullop.force) |
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534 pullop.common, pullop.fetch, pullop.rheads = tmp |
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535 |
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536 def _pullbundle2(pullop): |
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537 """pull data using bundle2 |
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538 |
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539 For now, the only supported data are changegroup.""" |
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540 kwargs = {'bundlecaps': set(['HG2X'])} |
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541 capsblob = bundle2.encodecaps(pullop.repo.bundle2caps) |
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542 kwargs['bundlecaps'].add('bundle2=' + urllib.quote(capsblob)) |
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543 # pulling changegroup |
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544 pullop.todosteps.remove('changegroup') |
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545 |
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546 kwargs['common'] = pullop.common |
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547 kwargs['heads'] = pullop.heads or pullop.rheads |
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548 if not pullop.fetch: |
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549 pullop.repo.ui.status(_("no changes found\n")) |
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550 pullop.cgresult = 0 |
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551 else: |
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552 if pullop.heads is None and list(pullop.common) == [nullid]: |
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553 pullop.repo.ui.status(_("requesting all changes\n")) |
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554 _pullbundle2extraprepare(pullop, kwargs) |
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555 if kwargs.keys() == ['format']: |
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556 return # nothing to pull |
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557 bundle = pullop.remote.getbundle('pull', **kwargs) |
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558 try: |
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559 op = bundle2.processbundle(pullop.repo, bundle, pullop.gettransaction) |
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560 except bundle2.UnknownPartError, exc: |
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561 raise util.Abort('missing support for %s' % exc) |
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562 |
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563 if pullop.fetch: |
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564 assert len(op.records['changegroup']) == 1 |
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565 pullop.cgresult = op.records['changegroup'][0]['return'] |
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566 |
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567 def _pullbundle2extraprepare(pullop, kwargs): |
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568 """hook function so that extensions can extend the getbundle call""" |
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569 pass |
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570 |
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571 def _pullchangeset(pullop): |
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572 """pull changeset from unbundle into the local repo""" |
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573 # We delay the open of the transaction as late as possible so we |
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574 # don't open transaction for nothing or you break future useful |
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575 # rollback call |
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576 pullop.todosteps.remove('changegroup') |
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577 if not pullop.fetch: |
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578 pullop.repo.ui.status(_("no changes found\n")) |
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579 pullop.cgresult = 0 |
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580 return |
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581 pullop.gettransaction() |
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582 if pullop.heads is None and list(pullop.common) == [nullid]: |
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583 pullop.repo.ui.status(_("requesting all changes\n")) |
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584 elif pullop.heads is None and pullop.remote.capable('changegroupsubset'): |
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585 # issue1320, avoid a race if remote changed after discovery |
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586 pullop.heads = pullop.rheads |
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587 |
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588 if pullop.remote.capable('getbundle'): |
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589 # TODO: get bundlecaps from remote |
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590 cg = pullop.remote.getbundle('pull', common=pullop.common, |
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591 heads=pullop.heads or pullop.rheads) |
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592 elif pullop.heads is None: |
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593 cg = pullop.remote.changegroup(pullop.fetch, 'pull') |
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594 elif not pullop.remote.capable('changegroupsubset'): |
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595 raise util.Abort(_("partial pull cannot be done because " |
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596 "other repository doesn't support " |
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597 "changegroupsubset.")) |
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598 else: |
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599 cg = pullop.remote.changegroupsubset(pullop.fetch, pullop.heads, 'pull') |
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600 pullop.cgresult = changegroup.addchangegroup(pullop.repo, cg, 'pull', |
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601 pullop.remote.url()) |
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602 |
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603 def _pullphase(pullop): |
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604 # Get remote phases data from remote |
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605 pullop.todosteps.remove('phases') |
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606 remotephases = pullop.remote.listkeys('phases') |
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607 publishing = bool(remotephases.get('publishing', False)) |
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608 if remotephases and not publishing: |
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609 # remote is new and unpublishing |
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610 pheads, _dr = phases.analyzeremotephases(pullop.repo, |
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611 pullop.pulledsubset, |
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612 remotephases) |
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613 phases.advanceboundary(pullop.repo, phases.public, pheads) |
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614 phases.advanceboundary(pullop.repo, phases.draft, |
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615 pullop.pulledsubset) |
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616 else: |
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617 # Remote is old or publishing all common changesets |
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618 # should be seen as public |
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619 phases.advanceboundary(pullop.repo, phases.public, |
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620 pullop.pulledsubset) |
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621 |
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622 def _pullobsolete(pullop): |
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623 """utility function to pull obsolete markers from a remote |
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624 |
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625 The `gettransaction` is function that return the pull transaction, creating |
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626 one if necessary. We return the transaction to inform the calling code that |
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627 a new transaction have been created (when applicable). |
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628 |
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629 Exists mostly to allow overriding for experimentation purpose""" |
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630 pullop.todosteps.remove('obsmarkers') |
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631 tr = None |
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632 if obsolete._enabled: |
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633 pullop.repo.ui.debug('fetching remote obsolete markers\n') |
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634 remoteobs = pullop.remote.listkeys('obsolete') |
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635 if 'dump0' in remoteobs: |
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636 tr = pullop.gettransaction() |
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637 for key in sorted(remoteobs, reverse=True): |
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638 if key.startswith('dump'): |
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639 data = base85.b85decode(remoteobs[key]) |
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640 pullop.repo.obsstore.mergemarkers(tr, data) |
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641 pullop.repo.invalidatevolatilesets() |
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642 return tr |
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643 |
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644 def getbundle(repo, source, heads=None, common=None, bundlecaps=None, |
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645 **kwargs): |
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646 """return a full bundle (with potentially multiple kind of parts) |
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647 |
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648 Could be a bundle HG10 or a bundle HG2X depending on bundlecaps |
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649 passed. For now, the bundle can contain only changegroup, but this will |
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650 changes when more part type will be available for bundle2. |
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651 |
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652 This is different from changegroup.getbundle that only returns an HG10 |
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653 changegroup bundle. They may eventually get reunited in the future when we |
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654 have a clearer idea of the API we what to query different data. |
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655 |
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656 The implementation is at a very early stage and will get massive rework |
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657 when the API of bundle is refined. |
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658 """ |
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659 # build changegroup bundle here. |
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660 cg = changegroup.getbundle(repo, source, heads=heads, |
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661 common=common, bundlecaps=bundlecaps) |
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662 if bundlecaps is None or 'HG2X' not in bundlecaps: |
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663 return cg |
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664 # very crude first implementation, |
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665 # the bundle API will change and the generation will be done lazily. |
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666 b2caps = {} |
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667 for bcaps in bundlecaps: |
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668 if bcaps.startswith('bundle2='): |
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669 blob = urllib.unquote(bcaps[len('bundle2='):]) |
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670 b2caps.update(bundle2.decodecaps(blob)) |
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671 bundler = bundle2.bundle20(repo.ui, b2caps) |
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672 if cg: |
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673 part = bundle2.bundlepart('b2x:changegroup', data=cg.getchunks()) |
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674 bundler.addpart(part) |
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675 _getbundleextrapart(bundler, repo, source, heads=heads, common=common, |
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676 bundlecaps=bundlecaps, **kwargs) |
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677 return util.chunkbuffer(bundler.getchunks()) |
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678 |
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679 def _getbundleextrapart(bundler, repo, source, heads=None, common=None, |
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680 bundlecaps=None, **kwargs): |
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681 """hook function to let extensions add parts to the requested bundle""" |
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682 pass |
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683 |
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684 def check_heads(repo, their_heads, context): |
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685 """check if the heads of a repo have been modified |
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686 |
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687 Used by peer for unbundling. |
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688 """ |
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689 heads = repo.heads() |
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690 heads_hash = util.sha1(''.join(sorted(heads))).digest() |
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691 if not (their_heads == ['force'] or their_heads == heads or |
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692 their_heads == ['hashed', heads_hash]): |
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693 # someone else committed/pushed/unbundled while we |
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694 # were transferring data |
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695 raise error.PushRaced('repository changed while %s - ' |
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696 'please try again' % context) |
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697 |
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698 def unbundle(repo, cg, heads, source, url): |
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699 """Apply a bundle to a repo. |
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700 |
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701 this function makes sure the repo is locked during the application and have |
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702 mechanism to check that no push race occurred between the creation of the |
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703 bundle and its application. |
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704 |
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705 If the push was raced as PushRaced exception is raised.""" |
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706 r = 0 |
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707 # need a transaction when processing a bundle2 stream |
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708 tr = None |
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709 lock = repo.lock() |
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710 try: |
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711 check_heads(repo, heads, 'uploading changes') |
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712 # push can proceed |
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713 if util.safehasattr(cg, 'params'): |
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714 try: |
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715 tr = repo.transaction('unbundle') |
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716 tr.hookargs['bundle2-exp'] = '1' |
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717 r = bundle2.processbundle(repo, cg, lambda: tr).reply |
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718 cl = repo.unfiltered().changelog |
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719 p = cl.writepending() and repo.root or "" |
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720 repo.hook('b2x-pretransactionclose', throw=True, source=source, |
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721 url=url, pending=p, **tr.hookargs) |
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722 tr.close() |
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723 repo.hook('b2x-transactionclose', source=source, url=url, |
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724 **tr.hookargs) |
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725 except Exception, exc: |
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726 exc.duringunbundle2 = True |
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727 raise |
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728 else: |
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729 r = changegroup.addchangegroup(repo, cg, source, url) |
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730 finally: |
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731 if tr is not None: |
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732 tr.release() |
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733 lock.release() |
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734 return r |