Mercurial > hg
annotate hgext/fetch.py @ 24118:76f6ae06ddf5
revlog: add "iscensored()" to revlog public API
The iscensored method will be used by the exchange layer to reject
nonconforming deltas involving censored revisions (and to produce
conforming deltas).
For background and broader design of the censorship feature, see:
http://mercurial.selenic.com/wiki/CensorPlan
author | Mike Edgar <adgar@google.com> |
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date | Fri, 23 Jan 2015 17:01:39 -0500 |
parents | 6ea41d41aba1 |
children | f1eaf03dd608 |
rev | line source |
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1 # fetch.py - pull and merge remote changes |
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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 '''pull, update and merge in one command (DEPRECATED)''' |
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9 |
3891 | 10 from mercurial.i18n import _ |
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11 from mercurial.node import short |
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12 from mercurial import commands, cmdutil, hg, util, error |
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13 from mercurial.lock import release |
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14 from mercurial import exchange |
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15 |
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16 cmdtable = {} |
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17 command = cmdutil.command(cmdtable) |
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18 testedwith = 'internal' |
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19 |
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20 @command('fetch', |
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21 [('r', 'rev', [], |
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22 _('a specific revision you would like to pull'), _('REV')), |
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23 ('e', 'edit', None, _('invoke editor on commit messages')), |
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24 ('', 'force-editor', None, _('edit commit message (DEPRECATED)')), |
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25 ('', 'switch-parent', None, _('switch parents when merging')), |
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26 ] + commands.commitopts + commands.commitopts2 + commands.remoteopts, |
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27 _('hg fetch [SOURCE]')) |
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28 def fetch(ui, repo, source='default', **opts): |
7598 | 29 '''pull changes from a remote repository, merge new changes if needed. |
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30 |
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31 This finds all changes from the repository at the specified path |
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32 or URL and adds them to the local repository. |
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33 |
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34 If the pulled changes add a new branch head, the head is |
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35 automatically merged, and the result of the merge is committed. |
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36 Otherwise, the working directory is updated to include the new |
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37 changes. |
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38 |
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39 When a merge is needed, the working directory is first updated to |
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40 the newly pulled changes. Local changes are then merged into the |
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41 pulled changes. To switch the merge order, use --switch-parent. |
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42 |
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43 See :hg:`help dates` for a list of formats valid for -d/--date. |
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44 |
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45 Returns 0 on success. |
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46 ''' |
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47 |
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48 date = opts.get('date') |
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49 if date: |
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50 opts['date'] = util.parsedate(date) |
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51 |
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52 parent, _p2 = repo.dirstate.parents() |
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53 branch = repo.dirstate.branch() |
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54 try: |
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55 branchnode = repo.branchtip(branch) |
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56 except error.RepoLookupError: |
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57 branchnode = None |
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58 if parent != branchnode: |
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59 raise util.Abort(_('working dir not at branch tip ' |
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60 '(use "hg update" to check out branch tip)')) |
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61 |
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62 wlock = lock = None |
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63 try: |
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64 wlock = repo.wlock() |
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65 lock = repo.lock() |
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66 |
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67 cmdutil.bailifchanged(repo) |
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68 |
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69 bheads = repo.branchheads(branch) |
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70 bheads = [head for head in bheads if len(repo[head].children()) == 0] |
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71 if len(bheads) > 1: |
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72 raise util.Abort(_('multiple heads in this branch ' |
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73 '(use "hg heads ." and "hg merge" to merge)')) |
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74 |
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75 other = hg.peer(repo, opts, ui.expandpath(source)) |
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76 ui.status(_('pulling from %s\n') % |
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77 util.hidepassword(ui.expandpath(source))) |
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78 revs = None |
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79 if opts['rev']: |
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80 try: |
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81 revs = [other.lookup(rev) for rev in opts['rev']] |
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82 except error.CapabilityError: |
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83 err = _("other repository doesn't support revision lookup, " |
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84 "so a rev cannot be specified.") |
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85 raise util.Abort(err) |
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86 |
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87 # Are there any changes at all? |
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88 modheads = exchange.pull(repo, other, heads=revs).cgresult |
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89 if modheads == 0: |
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90 return 0 |
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91 |
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92 # Is this a simple fast-forward along the current branch? |
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93 newheads = repo.branchheads(branch) |
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94 newchildren = repo.changelog.nodesbetween([parent], newheads)[2] |
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95 if len(newheads) == 1 and len(newchildren): |
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96 if newchildren[0] != parent: |
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97 return hg.update(repo, newchildren[0]) |
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98 else: |
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99 return 0 |
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100 |
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101 # Are there more than one additional branch heads? |
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102 newchildren = [n for n in newchildren if n != parent] |
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103 newparent = parent |
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104 if newchildren: |
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105 newparent = newchildren[0] |
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106 hg.clean(repo, newparent) |
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107 newheads = [n for n in newheads if n != newparent] |
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108 if len(newheads) > 1: |
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109 ui.status(_('not merging with %d other new branch heads ' |
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110 '(use "hg heads ." and "hg merge" to merge them)\n') % |
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111 (len(newheads) - 1)) |
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112 return 1 |
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113 |
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114 if not newheads: |
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115 return 0 |
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116 |
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117 # Otherwise, let's merge. |
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118 err = False |
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119 if newheads: |
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120 # By default, we consider the repository we're pulling |
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121 # *from* as authoritative, so we merge our changes into |
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122 # theirs. |
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123 if opts['switch_parent']: |
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124 firstparent, secondparent = newparent, newheads[0] |
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125 else: |
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126 firstparent, secondparent = newheads[0], newparent |
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127 ui.status(_('updating to %d:%s\n') % |
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128 (repo.changelog.rev(firstparent), |
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129 short(firstparent))) |
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130 hg.clean(repo, firstparent) |
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131 ui.status(_('merging with %d:%s\n') % |
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132 (repo.changelog.rev(secondparent), short(secondparent))) |
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133 err = hg.merge(repo, secondparent, remind=False) |
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134 |
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135 if not err: |
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136 # we don't translate commit messages |
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137 message = (cmdutil.logmessage(ui, opts) or |
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138 ('Automated merge with %s' % |
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139 util.removeauth(other.url()))) |
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140 editopt = opts.get('edit') or opts.get('force_editor') |
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141 editor = cmdutil.getcommiteditor(edit=editopt, editform='fetch') |
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142 n = repo.commit(message, opts['user'], opts['date'], editor=editor) |
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143 ui.status(_('new changeset %d:%s merges remote changes ' |
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144 'with local\n') % (repo.changelog.rev(n), |
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145 short(n))) |
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146 |
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147 return err |
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148 |
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149 finally: |
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150 release(lock, wlock) |