Mercurial > hg
annotate hgext/narrow/narrowcommands.py @ 41980:6cad258e1348
tracked: add documentation about `--import-rules` flag
The documentation is inspired from the `--import-rules` flag of hg debugsparse
command.
Differential Revision: https://phab.mercurial-scm.org/D6150
author | Pulkit Goyal <pulkit@yandex-team.ru> |
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date | Mon, 18 Mar 2019 14:57:43 +0300 |
parents | 1eb2fc21da12 |
children | 27d6956d386b |
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1 # narrowcommands.py - command modifications for narrowhg extension |
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2 # |
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3 # Copyright 2017 Google, Inc. |
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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 from __future__ import absolute_import |
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8 |
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9 import itertools |
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10 import os |
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11 |
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12 from mercurial.i18n import _ |
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13 from mercurial import ( |
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14 bundle2, |
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15 cmdutil, |
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16 commands, |
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17 discovery, |
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18 encoding, |
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19 error, |
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20 exchange, |
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21 extensions, |
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22 hg, |
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23 narrowspec, |
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24 node, |
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25 pycompat, |
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26 registrar, |
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27 repair, |
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28 repository, |
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29 repoview, |
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30 sparse, |
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31 util, |
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32 wireprototypes, |
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33 ) |
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34 |
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35 table = {} |
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36 command = registrar.command(table) |
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37 |
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38 def setup(): |
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39 """Wraps user-facing mercurial commands with narrow-aware versions.""" |
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40 |
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41 entry = extensions.wrapcommand(commands.table, 'clone', clonenarrowcmd) |
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42 entry[1].append(('', 'narrow', None, |
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43 _("create a narrow clone of select files"))) |
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44 entry[1].append(('', 'depth', '', |
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45 _("limit the history fetched by distance from heads"))) |
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46 entry[1].append(('', 'narrowspec', '', |
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47 _("read narrowspecs from file"))) |
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48 # TODO(durin42): unify sparse/narrow --include/--exclude logic a bit |
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49 if 'sparse' not in extensions.enabled(): |
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50 entry[1].append(('', 'include', [], |
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51 _("specifically fetch this file/directory"))) |
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52 entry[1].append( |
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53 ('', 'exclude', [], |
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54 _("do not fetch this file/directory, even if included"))) |
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55 |
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56 entry = extensions.wrapcommand(commands.table, 'pull', pullnarrowcmd) |
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57 entry[1].append(('', 'depth', '', |
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58 _("limit the history fetched by distance from heads"))) |
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59 |
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60 extensions.wrapcommand(commands.table, 'archive', archivenarrowcmd) |
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61 |
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62 def clonenarrowcmd(orig, ui, repo, *args, **opts): |
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63 """Wraps clone command, so 'hg clone' first wraps localrepo.clone().""" |
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64 opts = pycompat.byteskwargs(opts) |
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65 wrappedextraprepare = util.nullcontextmanager() |
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66 narrowspecfile = opts['narrowspec'] |
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67 |
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68 if narrowspecfile: |
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69 filepath = os.path.join(encoding.getcwd(), narrowspecfile) |
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70 ui.status(_("reading narrowspec from '%s'\n") % filepath) |
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71 try: |
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72 fdata = util.readfile(filepath) |
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73 except IOError as inst: |
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74 raise error.Abort(_("cannot read narrowspecs from '%s': %s") % |
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75 (filepath, encoding.strtolocal(inst.strerror))) |
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76 |
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77 includes, excludes, profiles = sparse.parseconfig(ui, fdata, 'narrow') |
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78 if profiles: |
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79 raise error.Abort(_("cannot specify other files using '%include' in" |
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80 " narrowspec")) |
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81 |
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82 narrowspec.validatepatterns(includes) |
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83 narrowspec.validatepatterns(excludes) |
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84 |
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85 # narrowspec is passed so we should assume that user wants narrow clone |
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86 opts['narrow'] = True |
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87 opts['include'].extend(includes) |
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88 opts['exclude'].extend(excludes) |
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89 |
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90 if opts['narrow']: |
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91 def pullbundle2extraprepare_widen(orig, pullop, kwargs): |
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92 orig(pullop, kwargs) |
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93 |
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94 if opts.get('depth'): |
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95 kwargs['depth'] = opts['depth'] |
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96 wrappedextraprepare = extensions.wrappedfunction(exchange, |
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97 '_pullbundle2extraprepare', pullbundle2extraprepare_widen) |
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98 |
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99 with wrappedextraprepare: |
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100 return orig(ui, repo, *args, **pycompat.strkwargs(opts)) |
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101 |
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102 def pullnarrowcmd(orig, ui, repo, *args, **opts): |
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103 """Wraps pull command to allow modifying narrow spec.""" |
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104 wrappedextraprepare = util.nullcontextmanager() |
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105 if repository.NARROW_REQUIREMENT in repo.requirements: |
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106 |
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107 def pullbundle2extraprepare_widen(orig, pullop, kwargs): |
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108 orig(pullop, kwargs) |
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109 if opts.get(r'depth'): |
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110 kwargs['depth'] = opts[r'depth'] |
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111 wrappedextraprepare = extensions.wrappedfunction(exchange, |
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112 '_pullbundle2extraprepare', pullbundle2extraprepare_widen) |
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113 |
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114 with wrappedextraprepare: |
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115 return orig(ui, repo, *args, **opts) |
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116 |
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117 def archivenarrowcmd(orig, ui, repo, *args, **opts): |
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118 """Wraps archive command to narrow the default includes.""" |
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119 if repository.NARROW_REQUIREMENT in repo.requirements: |
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120 repo_includes, repo_excludes = repo.narrowpats |
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121 includes = set(opts.get(r'include', [])) |
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122 excludes = set(opts.get(r'exclude', [])) |
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123 includes, excludes, unused_invalid = narrowspec.restrictpatterns( |
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124 includes, excludes, repo_includes, repo_excludes) |
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125 if includes: |
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126 opts[r'include'] = includes |
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127 if excludes: |
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128 opts[r'exclude'] = excludes |
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129 return orig(ui, repo, *args, **opts) |
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130 |
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131 def pullbundle2extraprepare(orig, pullop, kwargs): |
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132 repo = pullop.repo |
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133 if repository.NARROW_REQUIREMENT not in repo.requirements: |
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134 return orig(pullop, kwargs) |
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135 |
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136 if wireprototypes.NARROWCAP not in pullop.remote.capabilities(): |
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137 raise error.Abort(_("server does not support narrow clones")) |
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138 orig(pullop, kwargs) |
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139 kwargs['narrow'] = True |
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140 include, exclude = repo.narrowpats |
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141 kwargs['oldincludepats'] = include |
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142 kwargs['oldexcludepats'] = exclude |
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143 if include: |
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144 kwargs['includepats'] = include |
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145 if exclude: |
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146 kwargs['excludepats'] = exclude |
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147 # calculate known nodes only in ellipses cases because in non-ellipses cases |
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148 # we have all the nodes |
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149 if wireprototypes.ELLIPSESCAP in pullop.remote.capabilities(): |
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150 kwargs['known'] = [node.hex(ctx.node()) for ctx in |
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151 repo.set('::%ln', pullop.common) |
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152 if ctx.node() != node.nullid] |
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153 if not kwargs['known']: |
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154 # Mercurial serializes an empty list as '' and deserializes it as |
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155 # [''], so delete it instead to avoid handling the empty string on |
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156 # the server. |
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157 del kwargs['known'] |
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158 |
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159 extensions.wrapfunction(exchange,'_pullbundle2extraprepare', |
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160 pullbundle2extraprepare) |
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161 |
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162 def _narrow(ui, repo, remote, commoninc, oldincludes, oldexcludes, |
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163 newincludes, newexcludes, force): |
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164 oldmatch = narrowspec.match(repo.root, oldincludes, oldexcludes) |
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165 newmatch = narrowspec.match(repo.root, newincludes, newexcludes) |
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166 |
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167 # This is essentially doing "hg outgoing" to find all local-only |
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168 # commits. We will then check that the local-only commits don't |
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169 # have any changes to files that will be untracked. |
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170 unfi = repo.unfiltered() |
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171 outgoing = discovery.findcommonoutgoing(unfi, remote, |
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172 commoninc=commoninc) |
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173 ui.status(_('looking for local changes to affected paths\n')) |
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174 localnodes = [] |
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175 for n in itertools.chain(outgoing.missing, outgoing.excluded): |
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176 if any(oldmatch(f) and not newmatch(f) for f in unfi[n].files()): |
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177 localnodes.append(n) |
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178 revstostrip = unfi.revs('descendants(%ln)', localnodes) |
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179 hiddenrevs = repoview.filterrevs(repo, 'visible') |
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180 visibletostrip = list(repo.changelog.node(r) |
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181 for r in (revstostrip - hiddenrevs)) |
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182 if visibletostrip: |
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183 ui.status(_('The following changeset(s) or their ancestors have ' |
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184 'local changes not on the remote:\n')) |
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185 maxnodes = 10 |
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186 if ui.verbose or len(visibletostrip) <= maxnodes: |
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187 for n in visibletostrip: |
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188 ui.status('%s\n' % node.short(n)) |
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189 else: |
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190 for n in visibletostrip[:maxnodes]: |
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191 ui.status('%s\n' % node.short(n)) |
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192 ui.status(_('...and %d more, use --verbose to list all\n') % |
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193 (len(visibletostrip) - maxnodes)) |
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194 if not force: |
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195 raise error.Abort(_('local changes found'), |
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196 hint=_('use --force-delete-local-changes to ' |
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197 'ignore')) |
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198 |
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199 with ui.uninterruptible(): |
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200 if revstostrip: |
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201 tostrip = [unfi.changelog.node(r) for r in revstostrip] |
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202 if repo['.'].node() in tostrip: |
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203 # stripping working copy, so move to a different commit first |
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204 urev = max(repo.revs('(::%n) - %ln + null', |
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205 repo['.'].node(), visibletostrip)) |
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206 hg.clean(repo, urev) |
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207 overrides = {('devel', 'strip-obsmarkers'): False} |
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208 with ui.configoverride(overrides, 'narrow'): |
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209 repair.strip(ui, unfi, tostrip, topic='narrow') |
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210 |
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211 todelete = [] |
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212 for f, f2, size in repo.store.datafiles(): |
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213 if f.startswith('data/'): |
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214 file = f[5:-2] |
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215 if not newmatch(file): |
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216 todelete.append(f) |
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217 elif f.startswith('meta/'): |
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218 dir = f[5:-13] |
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219 dirs = ['.'] + sorted(util.dirs({dir})) + [dir] |
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220 include = True |
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221 for d in dirs: |
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222 visit = newmatch.visitdir(d) |
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223 if not visit: |
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224 include = False |
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225 break |
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226 if visit == 'all': |
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227 break |
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228 if not include: |
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229 todelete.append(f) |
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230 |
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231 repo.destroying() |
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232 |
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233 with repo.transaction('narrowing'): |
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234 # Update narrowspec before removing revlogs, so repo won't be |
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235 # corrupt in case of crash |
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236 repo.setnarrowpats(newincludes, newexcludes) |
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237 |
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238 for f in todelete: |
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239 ui.status(_('deleting %s\n') % f) |
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240 util.unlinkpath(repo.svfs.join(f)) |
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241 repo.store.markremoved(f) |
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242 |
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243 narrowspec.updateworkingcopy(repo, assumeclean=True) |
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244 narrowspec.copytoworkingcopy(repo) |
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245 |
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246 repo.destroyed() |
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247 |
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248 def _widen(ui, repo, remote, commoninc, oldincludes, oldexcludes, |
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249 newincludes, newexcludes): |
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250 # for now we assume that if a server has ellipses enabled, we will be |
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251 # exchanging ellipses nodes. In future we should add ellipses as a client |
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252 # side requirement (maybe) to distinguish a client is shallow or not and |
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253 # then send that information to server whether we want ellipses or not. |
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254 # Theoretically a non-ellipses repo should be able to use narrow |
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255 # functionality from an ellipses enabled server |
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256 ellipsesremote = wireprototypes.ELLIPSESCAP in remote.capabilities() |
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257 |
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258 def pullbundle2extraprepare_widen(orig, pullop, kwargs): |
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259 orig(pullop, kwargs) |
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260 # The old{in,ex}cludepats have already been set by orig() |
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261 kwargs['includepats'] = newincludes |
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262 kwargs['excludepats'] = newexcludes |
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263 wrappedextraprepare = extensions.wrappedfunction(exchange, |
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264 '_pullbundle2extraprepare', pullbundle2extraprepare_widen) |
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265 |
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266 # define a function that narrowbundle2 can call after creating the |
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267 # backup bundle, but before applying the bundle from the server |
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268 def setnewnarrowpats(): |
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269 repo.setnarrowpats(newincludes, newexcludes) |
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270 repo.setnewnarrowpats = setnewnarrowpats |
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271 # silence the devel-warning of applying an empty changegroup |
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272 overrides = {('devel', 'all-warnings'): False} |
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273 |
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274 with ui.uninterruptible(): |
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275 common = commoninc[0] |
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276 if ellipsesremote: |
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277 ds = repo.dirstate |
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278 p1, p2 = ds.p1(), ds.p2() |
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279 with ds.parentchange(): |
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280 ds.setparents(node.nullid, node.nullid) |
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281 with wrappedextraprepare: |
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282 with repo.ui.configoverride(overrides, 'widen'): |
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283 exchange.pull(repo, remote, heads=common) |
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284 with ds.parentchange(): |
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285 ds.setparents(p1, p2) |
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286 else: |
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287 with remote.commandexecutor() as e: |
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288 bundle = e.callcommand('narrow_widen', { |
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289 'oldincludes': oldincludes, |
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290 'oldexcludes': oldexcludes, |
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291 'newincludes': newincludes, |
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292 'newexcludes': newexcludes, |
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293 'cgversion': '03', |
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294 'commonheads': common, |
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295 'known': [], |
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296 'ellipses': False, |
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297 }).result() |
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298 |
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299 with repo.transaction('widening') as tr: |
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300 with repo.ui.configoverride(overrides, 'widen'): |
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301 tgetter = lambda: tr |
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302 bundle2.processbundle(repo, bundle, |
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303 transactiongetter=tgetter) |
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304 |
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305 with repo.transaction('widening'): |
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306 repo.setnewnarrowpats() |
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307 narrowspec.updateworkingcopy(repo) |
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308 narrowspec.copytoworkingcopy(repo) |
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309 |
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310 # TODO(rdamazio): Make new matcher format and update description |
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311 @command('tracked', |
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312 [('', 'addinclude', [], _('new paths to include')), |
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313 ('', 'removeinclude', [], _('old paths to no longer include')), |
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314 ('', 'addexclude', [], _('new paths to exclude')), |
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315 ('', 'import-rules', '', _('import narrowspecs from a file')), |
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316 ('', 'removeexclude', [], _('old paths to no longer exclude')), |
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317 ('', 'clear', False, _('whether to replace the existing narrowspec')), |
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318 ('', 'force-delete-local-changes', False, |
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319 _('forces deletion of local changes when narrowing')), |
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320 ('', 'update-working-copy', False, |
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321 _('update working copy when the store has changed')), |
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322 ] + commands.remoteopts, |
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323 _('[OPTIONS]... [REMOTE]'), |
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324 inferrepo=True) |
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325 def trackedcmd(ui, repo, remotepath=None, *pats, **opts): |
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326 """show or change the current narrowspec |
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327 |
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328 With no argument, shows the current narrowspec entries, one per line. Each |
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329 line will be prefixed with 'I' or 'X' for included or excluded patterns, |
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330 respectively. |
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331 |
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332 The narrowspec is comprised of expressions to match remote files and/or |
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333 directories that should be pulled into your client. |
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334 The narrowspec has *include* and *exclude* expressions, with excludes always |
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335 trumping includes: that is, if a file matches an exclude expression, it will |
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336 be excluded even if it also matches an include expression. |
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337 Excluding files that were never included has no effect. |
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338 |
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339 Each included or excluded entry is in the format described by |
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340 'hg help patterns'. |
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341 |
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342 The options allow you to add or remove included and excluded expressions. |
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343 |
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344 If --clear is specified, then all previous includes and excludes are DROPPED |
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345 and replaced by the new ones specified to --addinclude and --addexclude. |
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346 If --clear is specified without any further options, the narrowspec will be |
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347 empty and will not match any files. |
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348 |
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349 --import-rules accepts a path to a file containing rules, allowing you to |
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350 add --addinclude, --addexclude rules in bulk. Like the other include and |
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351 exclude switches, the changes are applied immediately. |
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352 """ |
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353 opts = pycompat.byteskwargs(opts) |
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354 if repository.NARROW_REQUIREMENT not in repo.requirements: |
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355 raise error.Abort(_('the tracked command is only supported on ' |
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356 'respositories cloned with --narrow')) |
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357 |
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358 # Before supporting, decide whether it "hg tracked --clear" should mean |
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359 # tracking no paths or all paths. |
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360 if opts['clear']: |
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361 raise error.Abort(_('the --clear option is not yet supported')) |
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362 |
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363 # import rules from a file |
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364 newrules = opts.get('import_rules') |
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365 if newrules: |
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366 try: |
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367 filepath = os.path.join(encoding.getcwd(), newrules) |
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368 fdata = util.readfile(filepath) |
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369 except IOError as inst: |
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370 raise error.Abort(_("cannot read narrowspecs from '%s': %s") % |
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371 (filepath, encoding.strtolocal(inst.strerror))) |
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372 includepats, excludepats, profiles = sparse.parseconfig(ui, fdata, |
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373 'narrow') |
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374 if profiles: |
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375 raise error.Abort(_("including other spec files using '%include' " |
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376 "is not supported in narrowspec")) |
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377 opts['addinclude'].extend(includepats) |
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378 opts['addexclude'].extend(excludepats) |
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379 |
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380 addedincludes = narrowspec.parsepatterns(opts['addinclude']) |
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381 removedincludes = narrowspec.parsepatterns(opts['removeinclude']) |
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382 addedexcludes = narrowspec.parsepatterns(opts['addexclude']) |
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383 removedexcludes = narrowspec.parsepatterns(opts['removeexclude']) |
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384 |
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385 update_working_copy = opts['update_working_copy'] |
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386 only_show = not (addedincludes or removedincludes or addedexcludes or |
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387 removedexcludes or newrules or update_working_copy) |
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388 |
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389 oldincludes, oldexcludes = repo.narrowpats |
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390 |
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391 # filter the user passed additions and deletions into actual additions and |
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392 # deletions of excludes and includes |
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393 addedincludes -= oldincludes |
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394 removedincludes &= oldincludes |
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395 addedexcludes -= oldexcludes |
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396 removedexcludes &= oldexcludes |
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397 |
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398 widening = addedincludes or removedexcludes |
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399 narrowing = removedincludes or addedexcludes |
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400 |
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401 # Only print the current narrowspec. |
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402 if only_show: |
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403 ui.pager('tracked') |
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404 fm = ui.formatter('narrow', opts) |
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405 for i in sorted(oldincludes): |
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406 fm.startitem() |
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407 fm.write('status', '%s ', 'I', label='narrow.included') |
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408 fm.write('pat', '%s\n', i, label='narrow.included') |
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409 for i in sorted(oldexcludes): |
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410 fm.startitem() |
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411 fm.write('status', '%s ', 'X', label='narrow.excluded') |
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412 fm.write('pat', '%s\n', i, label='narrow.excluded') |
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413 fm.end() |
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414 return 0 |
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415 |
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416 if update_working_copy: |
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417 with repo.wlock(), repo.lock(), repo.transaction('narrow-wc'): |
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418 narrowspec.updateworkingcopy(repo) |
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419 narrowspec.copytoworkingcopy(repo) |
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420 return 0 |
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421 |
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422 if not widening and not narrowing: |
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423 ui.status(_("nothing to widen or narrow\n")) |
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424 return 0 |
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425 |
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426 with repo.wlock(), repo.lock(): |
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427 cmdutil.bailifchanged(repo) |
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428 |
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429 # Find the revisions we have in common with the remote. These will |
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430 # be used for finding local-only changes for narrowing. They will |
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431 # also define the set of revisions to update for widening. |
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432 remotepath = ui.expandpath(remotepath or 'default') |
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433 url, branches = hg.parseurl(remotepath) |
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434 ui.status(_('comparing with %s\n') % util.hidepassword(url)) |
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435 remote = hg.peer(repo, opts, url) |
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436 |
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437 # check narrow support before doing anything if widening needs to be |
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438 # performed. In future we should also abort if client is ellipses and |
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439 # server does not support ellipses |
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440 if widening and wireprototypes.NARROWCAP not in remote.capabilities(): |
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441 raise error.Abort(_("server does not support narrow clones")) |
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442 |
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443 commoninc = discovery.findcommonincoming(repo, remote) |
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444 |
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445 if narrowing: |
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446 newincludes = oldincludes - removedincludes |
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447 newexcludes = oldexcludes | addedexcludes |
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448 _narrow(ui, repo, remote, commoninc, oldincludes, oldexcludes, |
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449 newincludes, newexcludes, |
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450 opts['force_delete_local_changes']) |
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451 # _narrow() updated the narrowspec and _widen() below needs to |
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452 # use the updated values as its base (otherwise removed includes |
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453 # and addedexcludes will be lost in the resulting narrowspec) |
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454 oldincludes = newincludes |
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455 oldexcludes = newexcludes |
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456 |
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457 if widening: |
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458 newincludes = oldincludes | addedincludes |
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459 newexcludes = oldexcludes - removedexcludes |
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460 _widen(ui, repo, remote, commoninc, oldincludes, oldexcludes, |
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461 newincludes, newexcludes) |
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462 |
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463 return 0 |