Mercurial > hg
annotate hgext/narrow/narrowcommands.py @ 42945:40f78072fda9
narrow: add option for automatically removing unused includes
It's been a somewhat common request among our users to have Mercurial
automatically pick includes to remove. This patch adds an option for
that: `hg tracked --auto-remove-includes`. I'm not sure if this is the
right name and semantics for it. Perhaps the feature should also add
excludes of large subdirectories even if other files in the include
are needed? Narrow clones are experimental, so we can change the name
and/or semantics later if necessary.
Differential Revision: https://phab.mercurial-scm.org/D6848
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Thu, 12 Sep 2019 21:55:45 -0700 |
parents | c2676b5a9f59 |
children | 2372284d9457 |
rev | line source |
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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 repoview, |
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29 sparse, |
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30 util, |
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31 wireprototypes, |
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32 ) |
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33 from mercurial.interfaces import ( |
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34 repository, |
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35 ) |
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36 |
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37 table = {} |
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38 command = registrar.command(table) |
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39 |
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40 def setup(): |
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41 """Wraps user-facing mercurial commands with narrow-aware versions.""" |
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42 |
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43 entry = extensions.wrapcommand(commands.table, 'clone', clonenarrowcmd) |
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44 entry[1].append(('', 'narrow', None, |
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45 _("create a narrow clone of select files"))) |
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46 entry[1].append(('', 'depth', '', |
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47 _("limit the history fetched by distance from heads"))) |
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48 entry[1].append(('', 'narrowspec', '', |
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49 _("read narrowspecs from file"))) |
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50 # TODO(durin42): unify sparse/narrow --include/--exclude logic a bit |
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51 if 'sparse' not in extensions.enabled(): |
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52 entry[1].append(('', 'include', [], |
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53 _("specifically fetch this file/directory"))) |
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54 entry[1].append( |
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55 ('', 'exclude', [], |
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56 _("do not fetch this file/directory, even if included"))) |
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57 |
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58 entry = extensions.wrapcommand(commands.table, 'pull', pullnarrowcmd) |
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59 entry[1].append(('', 'depth', '', |
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60 _("limit the history fetched by distance from heads"))) |
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61 |
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62 extensions.wrapcommand(commands.table, 'archive', archivenarrowcmd) |
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63 |
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64 def clonenarrowcmd(orig, ui, repo, *args, **opts): |
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65 """Wraps clone command, so 'hg clone' first wraps localrepo.clone().""" |
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66 opts = pycompat.byteskwargs(opts) |
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67 wrappedextraprepare = util.nullcontextmanager() |
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68 narrowspecfile = opts['narrowspec'] |
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69 |
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70 if narrowspecfile: |
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71 filepath = os.path.join(encoding.getcwd(), narrowspecfile) |
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72 ui.status(_("reading narrowspec from '%s'\n") % filepath) |
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73 try: |
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74 fdata = util.readfile(filepath) |
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75 except IOError as inst: |
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76 raise error.Abort(_("cannot read narrowspecs from '%s': %s") % |
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77 (filepath, encoding.strtolocal(inst.strerror))) |
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78 |
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79 includes, excludes, profiles = sparse.parseconfig(ui, fdata, 'narrow') |
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80 if profiles: |
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81 raise error.Abort(_("cannot specify other files using '%include' in" |
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82 " narrowspec")) |
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83 |
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84 narrowspec.validatepatterns(includes) |
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85 narrowspec.validatepatterns(excludes) |
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86 |
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87 # narrowspec is passed so we should assume that user wants narrow clone |
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88 opts['narrow'] = True |
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89 opts['include'].extend(includes) |
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90 opts['exclude'].extend(excludes) |
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91 |
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92 if opts['narrow']: |
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93 def pullbundle2extraprepare_widen(orig, pullop, kwargs): |
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94 orig(pullop, kwargs) |
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95 |
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96 if opts.get('depth'): |
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97 kwargs['depth'] = opts['depth'] |
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98 wrappedextraprepare = extensions.wrappedfunction(exchange, |
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99 '_pullbundle2extraprepare', pullbundle2extraprepare_widen) |
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100 |
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101 with wrappedextraprepare: |
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102 return orig(ui, repo, *args, **pycompat.strkwargs(opts)) |
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103 |
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104 def pullnarrowcmd(orig, ui, repo, *args, **opts): |
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105 """Wraps pull command to allow modifying narrow spec.""" |
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106 wrappedextraprepare = util.nullcontextmanager() |
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107 if repository.NARROW_REQUIREMENT in repo.requirements: |
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108 |
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109 def pullbundle2extraprepare_widen(orig, pullop, kwargs): |
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110 orig(pullop, kwargs) |
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111 if opts.get(r'depth'): |
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112 kwargs['depth'] = opts[r'depth'] |
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113 wrappedextraprepare = extensions.wrappedfunction(exchange, |
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114 '_pullbundle2extraprepare', pullbundle2extraprepare_widen) |
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115 |
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116 with wrappedextraprepare: |
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117 return orig(ui, repo, *args, **opts) |
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118 |
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119 def archivenarrowcmd(orig, ui, repo, *args, **opts): |
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120 """Wraps archive command to narrow the default includes.""" |
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121 if repository.NARROW_REQUIREMENT in repo.requirements: |
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122 repo_includes, repo_excludes = repo.narrowpats |
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123 includes = set(opts.get(r'include', [])) |
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124 excludes = set(opts.get(r'exclude', [])) |
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125 includes, excludes, unused_invalid = narrowspec.restrictpatterns( |
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126 includes, excludes, repo_includes, repo_excludes) |
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127 if includes: |
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128 opts[r'include'] = includes |
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129 if excludes: |
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130 opts[r'exclude'] = excludes |
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131 return orig(ui, repo, *args, **opts) |
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132 |
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133 def pullbundle2extraprepare(orig, pullop, kwargs): |
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134 repo = pullop.repo |
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135 if repository.NARROW_REQUIREMENT not in repo.requirements: |
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136 return orig(pullop, kwargs) |
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137 |
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138 if wireprototypes.NARROWCAP not in pullop.remote.capabilities(): |
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139 raise error.Abort(_("server does not support narrow clones")) |
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140 orig(pullop, kwargs) |
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141 kwargs['narrow'] = True |
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142 include, exclude = repo.narrowpats |
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143 kwargs['oldincludepats'] = include |
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144 kwargs['oldexcludepats'] = exclude |
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145 if include: |
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146 kwargs['includepats'] = include |
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147 if exclude: |
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148 kwargs['excludepats'] = exclude |
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149 # calculate known nodes only in ellipses cases because in non-ellipses cases |
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150 # we have all the nodes |
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151 if wireprototypes.ELLIPSESCAP1 in pullop.remote.capabilities(): |
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152 kwargs['known'] = [node.hex(ctx.node()) for ctx in |
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153 repo.set('::%ln', pullop.common) |
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154 if ctx.node() != node.nullid] |
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155 if not kwargs['known']: |
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156 # Mercurial serializes an empty list as '' and deserializes it as |
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157 # [''], so delete it instead to avoid handling the empty string on |
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158 # the server. |
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159 del kwargs['known'] |
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160 |
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161 extensions.wrapfunction(exchange,'_pullbundle2extraprepare', |
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162 pullbundle2extraprepare) |
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163 |
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164 def _narrow(ui, repo, remote, commoninc, oldincludes, oldexcludes, |
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165 newincludes, newexcludes, force): |
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166 oldmatch = narrowspec.match(repo.root, oldincludes, oldexcludes) |
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167 newmatch = narrowspec.match(repo.root, newincludes, newexcludes) |
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168 |
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169 # This is essentially doing "hg outgoing" to find all local-only |
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170 # commits. We will then check that the local-only commits don't |
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171 # have any changes to files that will be untracked. |
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172 unfi = repo.unfiltered() |
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173 outgoing = discovery.findcommonoutgoing(unfi, remote, |
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174 commoninc=commoninc) |
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175 ui.status(_('looking for local changes to affected paths\n')) |
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176 localnodes = [] |
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177 for n in itertools.chain(outgoing.missing, outgoing.excluded): |
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178 if any(oldmatch(f) and not newmatch(f) for f in unfi[n].files()): |
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179 localnodes.append(n) |
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180 revstostrip = unfi.revs('descendants(%ln)', localnodes) |
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181 hiddenrevs = repoview.filterrevs(repo, 'visible') |
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182 visibletostrip = list(repo.changelog.node(r) |
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183 for r in (revstostrip - hiddenrevs)) |
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184 if visibletostrip: |
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185 ui.status(_('The following changeset(s) or their ancestors have ' |
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186 'local changes not on the remote:\n')) |
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187 maxnodes = 10 |
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188 if ui.verbose or len(visibletostrip) <= maxnodes: |
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189 for n in visibletostrip: |
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190 ui.status('%s\n' % node.short(n)) |
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191 else: |
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192 for n in visibletostrip[:maxnodes]: |
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193 ui.status('%s\n' % node.short(n)) |
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194 ui.status(_('...and %d more, use --verbose to list all\n') % |
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195 (len(visibletostrip) - maxnodes)) |
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196 if not force: |
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197 raise error.Abort(_('local changes found'), |
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198 hint=_('use --force-delete-local-changes to ' |
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199 'ignore')) |
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200 |
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201 with ui.uninterruptible(): |
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202 if revstostrip: |
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203 tostrip = [unfi.changelog.node(r) for r in revstostrip] |
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204 if repo['.'].node() in tostrip: |
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205 # stripping working copy, so move to a different commit first |
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206 urev = max(repo.revs('(::%n) - %ln + null', |
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207 repo['.'].node(), visibletostrip)) |
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208 hg.clean(repo, urev) |
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209 overrides = {('devel', 'strip-obsmarkers'): False} |
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210 with ui.configoverride(overrides, 'narrow'): |
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211 repair.strip(ui, unfi, tostrip, topic='narrow') |
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212 |
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213 todelete = [] |
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214 for f, f2, size in repo.store.datafiles(): |
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215 if f.startswith('data/'): |
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216 file = f[5:-2] |
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217 if not newmatch(file): |
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218 todelete.append(f) |
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219 elif f.startswith('meta/'): |
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220 dir = f[5:-13] |
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221 dirs = sorted(util.dirs({dir})) + [dir] |
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222 include = True |
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223 for d in dirs: |
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224 visit = newmatch.visitdir(d) |
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225 if not visit: |
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226 include = False |
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227 break |
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228 if visit == 'all': |
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229 break |
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230 if not include: |
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231 todelete.append(f) |
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232 |
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233 repo.destroying() |
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234 |
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235 with repo.transaction('narrowing'): |
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236 # Update narrowspec before removing revlogs, so repo won't be |
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237 # corrupt in case of crash |
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238 repo.setnarrowpats(newincludes, newexcludes) |
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239 |
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240 for f in todelete: |
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241 ui.status(_('deleting %s\n') % f) |
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242 util.unlinkpath(repo.svfs.join(f)) |
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243 repo.store.markremoved(f) |
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244 |
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245 narrowspec.updateworkingcopy(repo, assumeclean=True) |
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246 narrowspec.copytoworkingcopy(repo) |
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247 |
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248 repo.destroyed() |
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249 |
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250 def _widen(ui, repo, remote, commoninc, oldincludes, oldexcludes, |
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251 newincludes, newexcludes): |
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252 # for now we assume that if a server has ellipses enabled, we will be |
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253 # exchanging ellipses nodes. In future we should add ellipses as a client |
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254 # side requirement (maybe) to distinguish a client is shallow or not and |
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255 # then send that information to server whether we want ellipses or not. |
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256 # Theoretically a non-ellipses repo should be able to use narrow |
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257 # functionality from an ellipses enabled server |
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258 remotecap = remote.capabilities() |
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259 ellipsesremote = any(cap in remotecap |
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260 for cap in wireprototypes.SUPPORTED_ELLIPSESCAP) |
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261 |
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262 # check whether we are talking to a server which supports old version of |
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263 # ellipses capabilities |
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264 isoldellipses = (ellipsesremote and wireprototypes.ELLIPSESCAP1 in |
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265 remotecap and wireprototypes.ELLIPSESCAP not in remotecap) |
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266 |
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267 def pullbundle2extraprepare_widen(orig, pullop, kwargs): |
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268 orig(pullop, kwargs) |
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269 # The old{in,ex}cludepats have already been set by orig() |
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270 kwargs['includepats'] = newincludes |
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271 kwargs['excludepats'] = newexcludes |
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272 wrappedextraprepare = extensions.wrappedfunction(exchange, |
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273 '_pullbundle2extraprepare', pullbundle2extraprepare_widen) |
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274 |
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275 # define a function that narrowbundle2 can call after creating the |
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276 # backup bundle, but before applying the bundle from the server |
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277 def setnewnarrowpats(): |
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278 repo.setnarrowpats(newincludes, newexcludes) |
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279 repo.setnewnarrowpats = setnewnarrowpats |
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280 # silence the devel-warning of applying an empty changegroup |
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281 overrides = {('devel', 'all-warnings'): False} |
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282 |
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283 common = commoninc[0] |
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284 with ui.uninterruptible(): |
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285 if ellipsesremote: |
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286 ds = repo.dirstate |
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287 p1, p2 = ds.p1(), ds.p2() |
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288 with ds.parentchange(): |
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289 ds.setparents(node.nullid, node.nullid) |
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290 if isoldellipses: |
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291 with wrappedextraprepare: |
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292 exchange.pull(repo, remote, heads=common) |
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293 else: |
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294 known = [] |
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295 if ellipsesremote: |
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296 known = [ctx.node() for ctx in |
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297 repo.set('::%ln', common) |
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298 if ctx.node() != node.nullid] |
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299 with remote.commandexecutor() as e: |
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300 bundle = e.callcommand('narrow_widen', { |
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301 'oldincludes': oldincludes, |
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302 'oldexcludes': oldexcludes, |
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303 'newincludes': newincludes, |
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304 'newexcludes': newexcludes, |
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305 'cgversion': '03', |
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306 'commonheads': common, |
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307 'known': known, |
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308 'ellipses': ellipsesremote, |
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309 }).result() |
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310 |
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311 trmanager = exchange.transactionmanager(repo, 'widen', remote.url()) |
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312 with trmanager, repo.ui.configoverride(overrides, 'widen'): |
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313 op = bundle2.bundleoperation(repo, trmanager.transaction, |
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314 source='widen') |
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315 # TODO: we should catch error.Abort here |
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316 bundle2.processbundle(repo, bundle, op=op) |
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317 |
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318 if ellipsesremote: |
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319 with ds.parentchange(): |
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320 ds.setparents(p1, p2) |
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321 |
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322 with repo.transaction('widening'): |
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323 repo.setnewnarrowpats() |
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324 narrowspec.updateworkingcopy(repo) |
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325 narrowspec.copytoworkingcopy(repo) |
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326 |
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327 # TODO(rdamazio): Make new matcher format and update description |
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328 @command('tracked', |
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329 [('', 'addinclude', [], _('new paths to include')), |
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330 ('', 'removeinclude', [], _('old paths to no longer include')), |
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331 ('', 'auto-remove-includes', False, |
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332 _('automatically choose unused includes to remove')), |
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333 ('', 'addexclude', [], _('new paths to exclude')), |
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334 ('', 'import-rules', '', _('import narrowspecs from a file')), |
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335 ('', 'removeexclude', [], _('old paths to no longer exclude')), |
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336 ('', 'clear', False, _('whether to replace the existing narrowspec')), |
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337 ('', 'force-delete-local-changes', False, |
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338 _('forces deletion of local changes when narrowing')), |
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339 ('', 'update-working-copy', False, |
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340 _('update working copy when the store has changed')), |
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341 ] + commands.remoteopts, |
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342 _('[OPTIONS]... [REMOTE]'), |
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343 inferrepo=True) |
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344 def trackedcmd(ui, repo, remotepath=None, *pats, **opts): |
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345 """show or change the current narrowspec |
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346 |
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347 With no argument, shows the current narrowspec entries, one per line. Each |
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348 line will be prefixed with 'I' or 'X' for included or excluded patterns, |
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349 respectively. |
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350 |
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351 The narrowspec is comprised of expressions to match remote files and/or |
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352 directories that should be pulled into your client. |
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353 The narrowspec has *include* and *exclude* expressions, with excludes always |
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354 trumping includes: that is, if a file matches an exclude expression, it will |
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355 be excluded even if it also matches an include expression. |
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356 Excluding files that were never included has no effect. |
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357 |
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358 Each included or excluded entry is in the format described by |
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359 'hg help patterns'. |
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360 |
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361 The options allow you to add or remove included and excluded expressions. |
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362 |
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363 If --clear is specified, then all previous includes and excludes are DROPPED |
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364 and replaced by the new ones specified to --addinclude and --addexclude. |
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365 If --clear is specified without any further options, the narrowspec will be |
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366 empty and will not match any files. |
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367 |
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368 If --auto-remove-includes is specified, then those includes that don't match |
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369 any files modified by currently visible local commits (those not shared by |
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370 the remote) will be added to the set of explicitly specified includes to |
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371 remove. |
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372 |
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373 --import-rules accepts a path to a file containing rules, allowing you to |
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374 add --addinclude, --addexclude rules in bulk. Like the other include and |
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375 exclude switches, the changes are applied immediately. |
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376 """ |
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377 opts = pycompat.byteskwargs(opts) |
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378 if repository.NARROW_REQUIREMENT not in repo.requirements: |
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379 raise error.Abort(_('the tracked command is only supported on ' |
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380 'repositories cloned with --narrow')) |
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381 |
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382 # Before supporting, decide whether it "hg tracked --clear" should mean |
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383 # tracking no paths or all paths. |
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384 if opts['clear']: |
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385 raise error.Abort(_('the --clear option is not yet supported')) |
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386 |
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387 # import rules from a file |
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388 newrules = opts.get('import_rules') |
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389 if newrules: |
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390 try: |
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391 filepath = os.path.join(encoding.getcwd(), newrules) |
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392 fdata = util.readfile(filepath) |
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393 except IOError as inst: |
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394 raise error.Abort(_("cannot read narrowspecs from '%s': %s") % |
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395 (filepath, encoding.strtolocal(inst.strerror))) |
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396 includepats, excludepats, profiles = sparse.parseconfig(ui, fdata, |
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397 'narrow') |
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398 if profiles: |
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399 raise error.Abort(_("including other spec files using '%include' " |
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400 "is not supported in narrowspec")) |
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401 opts['addinclude'].extend(includepats) |
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402 opts['addexclude'].extend(excludepats) |
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403 |
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404 addedincludes = narrowspec.parsepatterns(opts['addinclude']) |
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405 removedincludes = narrowspec.parsepatterns(opts['removeinclude']) |
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406 addedexcludes = narrowspec.parsepatterns(opts['addexclude']) |
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407 removedexcludes = narrowspec.parsepatterns(opts['removeexclude']) |
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408 autoremoveincludes = opts['auto_remove_includes'] |
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409 |
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410 update_working_copy = opts['update_working_copy'] |
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411 only_show = not (addedincludes or removedincludes or addedexcludes or |
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412 removedexcludes or newrules or autoremoveincludes or |
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413 update_working_copy) |
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414 |
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415 oldincludes, oldexcludes = repo.narrowpats |
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416 |
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417 # filter the user passed additions and deletions into actual additions and |
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418 # deletions of excludes and includes |
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419 addedincludes -= oldincludes |
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420 removedincludes &= oldincludes |
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421 addedexcludes -= oldexcludes |
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422 removedexcludes &= oldexcludes |
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423 |
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424 widening = addedincludes or removedexcludes |
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425 narrowing = removedincludes or addedexcludes |
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426 |
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427 # Only print the current narrowspec. |
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428 if only_show: |
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429 ui.pager('tracked') |
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430 fm = ui.formatter('narrow', opts) |
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431 for i in sorted(oldincludes): |
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432 fm.startitem() |
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433 fm.write('status', '%s ', 'I', label='narrow.included') |
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434 fm.write('pat', '%s\n', i, label='narrow.included') |
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435 for i in sorted(oldexcludes): |
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436 fm.startitem() |
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437 fm.write('status', '%s ', 'X', label='narrow.excluded') |
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438 fm.write('pat', '%s\n', i, label='narrow.excluded') |
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439 fm.end() |
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440 return 0 |
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441 |
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442 if update_working_copy: |
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443 with repo.wlock(), repo.lock(), repo.transaction('narrow-wc'): |
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444 narrowspec.updateworkingcopy(repo) |
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445 narrowspec.copytoworkingcopy(repo) |
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446 return 0 |
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447 |
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448 if not (widening or narrowing or autoremoveincludes): |
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449 ui.status(_("nothing to widen or narrow\n")) |
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450 return 0 |
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451 |
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452 with repo.wlock(), repo.lock(): |
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453 cmdutil.bailifchanged(repo) |
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454 |
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455 # Find the revisions we have in common with the remote. These will |
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456 # be used for finding local-only changes for narrowing. They will |
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457 # also define the set of revisions to update for widening. |
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458 remotepath = ui.expandpath(remotepath or 'default') |
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459 url, branches = hg.parseurl(remotepath) |
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460 ui.status(_('comparing with %s\n') % util.hidepassword(url)) |
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461 remote = hg.peer(repo, opts, url) |
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462 |
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463 # check narrow support before doing anything if widening needs to be |
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464 # performed. In future we should also abort if client is ellipses and |
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465 # server does not support ellipses |
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466 if widening and wireprototypes.NARROWCAP not in remote.capabilities(): |
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467 raise error.Abort(_("server does not support narrow clones")) |
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468 |
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469 commoninc = discovery.findcommonincoming(repo, remote) |
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470 |
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471 if autoremoveincludes: |
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472 outgoing = discovery.findcommonoutgoing(repo, remote, |
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473 commoninc=commoninc) |
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474 ui.status(_('looking for unused includes to remove\n')) |
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475 localfiles = set() |
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476 for n in itertools.chain(outgoing.missing, outgoing.excluded): |
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477 localfiles.update(repo[n].files()) |
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478 suggestedremovals = [] |
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479 for include in sorted(oldincludes): |
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480 match = narrowspec.match(repo.root, [include], oldexcludes) |
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481 if not any(match(f) for f in localfiles): |
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482 suggestedremovals.append(include) |
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483 if suggestedremovals: |
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484 for s in suggestedremovals: |
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485 ui.status('%s\n' % s) |
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486 if (ui.promptchoice(_('remove these unused includes (yn)?' |
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487 '$$ &Yes $$ &No')) == 0): |
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488 removedincludes.update(suggestedremovals) |
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489 narrowing = True |
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490 else: |
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491 ui.status(_('found no unused includes\n')) |
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492 |
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493 if narrowing: |
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494 newincludes = oldincludes - removedincludes |
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495 newexcludes = oldexcludes | addedexcludes |
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496 _narrow(ui, repo, remote, commoninc, oldincludes, oldexcludes, |
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497 newincludes, newexcludes, |
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498 opts['force_delete_local_changes']) |
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499 # _narrow() updated the narrowspec and _widen() below needs to |
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500 # use the updated values as its base (otherwise removed includes |
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501 # and addedexcludes will be lost in the resulting narrowspec) |
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502 oldincludes = newincludes |
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503 oldexcludes = newexcludes |
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504 |
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505 if widening: |
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506 newincludes = oldincludes | addedincludes |
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507 newexcludes = oldexcludes - removedexcludes |
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508 _widen(ui, repo, remote, commoninc, oldincludes, oldexcludes, |
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509 newincludes, newexcludes) |
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510 |
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511 return 0 |