Mercurial > hg
annotate hgext/narrow/narrowcommands.py @ 42341:27d6956d386b
match: use '' instead of '.' for root directory (API)
I think '' is generally a better value for the root directory than '.'
is. For example, os.path.join('', 'foo') => 'foo', while
os.path.join('.', 'foo') => './foo'.
This patch mostly makes it so we use '' internally in
match.py. However, it also affects the API in visitdir(),
visitchildrenset() and files(). The two former now also accept '' as
input. I've updated the callers of these methods. I've also added a
deprecation warning for passing '.' (for external callers). The only
caller I could find that was affected by files() returning '' instead
of '.' was in dirstate.walk(). I've updated that.
The next few patches show some workarounds we can remove by using ''
instead of '.'.
Differential Revision: https://phab.mercurial-scm.org/D6401
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Mon, 15 May 2017 00:12:19 -0700 |
parents | 6cad258e1348 |
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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 |