author | Pierre-Yves David <pierre-yves.david@octobus.net> |
Fri, 27 Sep 2019 00:40:52 +0200 | |
changeset 43003 | bbf77341a956 |
parent 42456 | 87a34c767384 |
child 43076 | 2372284d9457 |
permissions | -rw-r--r-- |
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# sparse.py - allow sparse checkouts of the working directory |
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# |
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# Copyright 2014 Facebook, Inc. |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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|
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"""allow sparse checkouts of the working directory (EXPERIMENTAL) |
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(This extension is not yet protected by backwards compatibility |
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guarantees. Any aspect may break in future releases until this |
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notice is removed.) |
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|
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This extension allows the working directory to only consist of a |
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subset of files for the revision. This allows specific files or |
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directories to be explicitly included or excluded. Many repository |
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operations have performance proportional to the number of files in |
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the working directory. So only realizing a subset of files in the |
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working directory can improve performance. |
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Sparse Config Files |
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------------------- |
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The set of files that are part of a sparse checkout are defined by |
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a sparse config file. The file defines 3 things: includes (files to |
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include in the sparse checkout), excludes (files to exclude from the |
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sparse checkout), and profiles (links to other config files). |
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The file format is newline delimited. Empty lines and lines beginning |
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with ``#`` are ignored. |
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Lines beginning with ``%include `` denote another sparse config file |
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to include. e.g. ``%include tests.sparse``. The filename is relative |
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to the repository root. |
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The special lines ``[include]`` and ``[exclude]`` denote the section |
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for includes and excludes that follow, respectively. It is illegal to |
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have ``[include]`` after ``[exclude]``. |
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Non-special lines resemble file patterns to be added to either includes |
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or excludes. The syntax of these lines is documented by :hg:`help patterns`. |
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Patterns are interpreted as ``glob:`` by default and match against the |
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root of the repository. |
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Exclusion patterns take precedence over inclusion patterns. So even |
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if a file is explicitly included, an ``[exclude]`` entry can remove it. |
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For example, say you have a repository with 3 directories, ``frontend/``, |
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``backend/``, and ``tools/``. ``frontend/`` and ``backend/`` correspond |
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to different projects and it is uncommon for someone working on one |
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to need the files for the other. But ``tools/`` contains files shared |
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between both projects. Your sparse config files may resemble:: |
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# frontend.sparse |
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frontend/** |
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tools/** |
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# backend.sparse |
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backend/** |
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tools/** |
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Say the backend grows in size. Or there's a directory with thousands |
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of files you wish to exclude. You can modify the profile to exclude |
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certain files:: |
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[include] |
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backend/** |
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tools/** |
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[exclude] |
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tools/tests/** |
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""" |
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from __future__ import absolute_import |
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from mercurial.i18n import _ |
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from mercurial import ( |
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commands, |
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dirstate, |
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error, |
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extensions, |
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hg, |
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logcmdutil, |
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match as matchmod, |
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pycompat, |
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registrar, |
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sparse, |
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util, |
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) |
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# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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# be specifying the version(s) of Mercurial they are tested with, or |
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# leave the attribute unspecified. |
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testedwith = 'ships-with-hg-core' |
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cmdtable = {} |
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command = registrar.command(cmdtable) |
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def extsetup(ui): |
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sparse.enabled = True |
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_setupclone(ui) |
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_setuplog(ui) |
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_setupadd(ui) |
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_setupdirstate(ui) |
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def replacefilecache(cls, propname, replacement): |
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"""Replace a filecache property with a new class. This allows changing the |
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cache invalidation condition.""" |
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origcls = cls |
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assert callable(replacement) |
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while cls is not object: |
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if propname in cls.__dict__: |
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orig = cls.__dict__[propname] |
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setattr(cls, propname, replacement(orig)) |
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break |
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cls = cls.__bases__[0] |
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if cls is object: |
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raise AttributeError(_("type '%s' has no property '%s'") % (origcls, |
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propname)) |
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123 |
|
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124 |
def _setuplog(ui): |
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entry = commands.table['log|history'] |
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entry[1].append(('', 'sparse', None, |
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127 |
"limit to changesets affecting the sparse checkout")) |
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128 |
|
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129 |
def _initialrevs(orig, repo, opts): |
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revs = orig(repo, opts) |
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131 |
if opts.get('sparse'): |
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sparsematch = sparse.matcher(repo) |
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def ctxmatch(rev): |
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ctx = repo[rev] |
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return any(f for f in ctx.files() if sparsematch(f)) |
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revs = revs.filter(ctxmatch) |
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return revs |
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138 |
extensions.wrapfunction(logcmdutil, '_initialrevs', _initialrevs) |
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139 |
|
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def _clonesparsecmd(orig, ui, repo, *args, **opts): |
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141 |
include_pat = opts.get(r'include') |
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142 |
exclude_pat = opts.get(r'exclude') |
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143 |
enableprofile_pat = opts.get(r'enable_profile') |
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144 |
narrow_pat = opts.get(r'narrow') |
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include = exclude = enableprofile = False |
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146 |
if include_pat: |
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pat = include_pat |
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148 |
include = True |
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if exclude_pat: |
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pat = exclude_pat |
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151 |
exclude = True |
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152 |
if enableprofile_pat: |
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153 |
pat = enableprofile_pat |
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154 |
enableprofile = True |
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155 |
if sum([include, exclude, enableprofile]) > 1: |
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156 |
raise error.Abort(_("too many flags specified.")) |
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157 |
# if --narrow is passed, it means they are includes and excludes for narrow |
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158 |
# clone |
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159 |
if not narrow_pat and (include or exclude or enableprofile): |
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160 |
def clonesparse(orig, self, node, overwrite, *args, **kwargs): |
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161 |
sparse.updateconfig(self.unfiltered(), pat, {}, include=include, |
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162 |
exclude=exclude, enableprofile=enableprofile, |
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163 |
usereporootpaths=True) |
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164 |
return orig(self, node, overwrite, *args, **kwargs) |
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165 |
extensions.wrapfunction(hg, 'updaterepo', clonesparse) |
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166 |
return orig(ui, repo, *args, **opts) |
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167 |
|
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|
168 |
def _setupclone(ui): |
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169 |
entry = commands.table['clone'] |
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170 |
entry[1].append(('', 'enable-profile', [], |
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171 |
'enable a sparse profile')) |
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|
172 |
entry[1].append(('', 'include', [], |
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173 |
'include sparse pattern')) |
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|
174 |
entry[1].append(('', 'exclude', [], |
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|
175 |
'exclude sparse pattern')) |
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|
176 |
extensions.wrapcommand(commands.table, 'clone', _clonesparsecmd) |
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177 |
|
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178 |
def _setupadd(ui): |
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179 |
entry = commands.table['add'] |
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180 |
entry[1].append(('s', 'sparse', None, |
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|
181 |
'also include directories of added files in sparse config')) |
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|
182 |
|
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|
183 |
def _add(orig, ui, repo, *pats, **opts): |
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|
184 |
if opts.get(r'sparse'): |
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|
185 |
dirs = set() |
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|
186 |
for pat in pats: |
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|
187 |
dirname, basename = util.split(pat) |
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188 |
dirs.add(dirname) |
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189 |
sparse.updateconfig(repo, list(dirs), opts, include=True) |
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|
190 |
return orig(ui, repo, *pats, **opts) |
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|
191 |
|
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|
192 |
extensions.wrapcommand(commands.table, 'add', _add) |
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|
193 |
|
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|
194 |
def _setupdirstate(ui): |
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195 |
"""Modify the dirstate to prevent stat'ing excluded files, |
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|
196 |
and to prevent modifications to files outside the checkout. |
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|
197 |
""" |
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198 |
|
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|
199 |
def walk(orig, self, match, subrepos, unknown, ignored, full=True): |
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|
200 |
# hack to not exclude explicitly-specified paths so that they can |
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|
201 |
# be warned later on e.g. dirstate.add() |
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|
202 |
em = matchmod.exact(match.files()) |
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|
203 |
sm = matchmod.unionmatcher([self._sparsematcher, em]) |
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|
204 |
match = matchmod.intersectmatchers(match, sm) |
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|
205 |
return orig(self, match, subrepos, unknown, ignored, full) |
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|
206 |
|
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|
207 |
extensions.wrapfunction(dirstate.dirstate, 'walk', walk) |
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208 |
|
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|
209 |
# dirstate.rebuild should not add non-matching files |
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|
210 |
def _rebuild(orig, self, parent, allfiles, changedfiles=None): |
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|
211 |
matcher = self._sparsematcher |
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|
212 |
if not matcher.always(): |
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|
213 |
allfiles = [f for f in allfiles if matcher(f)] |
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|
214 |
if changedfiles: |
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|
215 |
changedfiles = [f for f in changedfiles if matcher(f)] |
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|
216 |
|
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|
217 |
if changedfiles is not None: |
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|
218 |
# In _rebuild, these files will be deleted from the dirstate |
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|
219 |
# when they are not found to be in allfiles |
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|
220 |
dirstatefilestoremove = set(f for f in self if not matcher(f)) |
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|
221 |
changedfiles = dirstatefilestoremove.union(changedfiles) |
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|
222 |
|
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|
223 |
return orig(self, parent, allfiles, changedfiles) |
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|
224 |
extensions.wrapfunction(dirstate.dirstate, 'rebuild', _rebuild) |
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|
225 |
|
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|
226 |
# Prevent adding files that are outside the sparse checkout |
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|
227 |
editfuncs = ['normal', 'add', 'normallookup', 'copy', 'remove', 'merge'] |
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|
228 |
hint = _('include file with `hg debugsparse --include <pattern>` or use ' + |
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|
229 |
'`hg add -s <file>` to include file directory while adding') |
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|
230 |
for func in editfuncs: |
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|
231 |
def _wrapper(orig, self, *args, **kwargs): |
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|
232 |
sparsematch = self._sparsematcher |
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|
233 |
if not sparsematch.always(): |
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|
234 |
for f in args: |
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|
235 |
if (f is not None and not sparsematch(f) and |
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f not in self): |
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raise error.Abort(_("cannot add '%s' - it is outside " |
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238 |
"the sparse checkout") % f, |
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239 |
hint=hint) |
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|
240 |
return orig(self, *args, **kwargs) |
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241 |
extensions.wrapfunction(dirstate.dirstate, func, _wrapper) |
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242 |
|
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|
243 |
@command('debugsparse', [ |
33289
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('I', 'include', False, _('include files in the sparse checkout')), |
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|
245 |
('X', 'exclude', False, _('exclude files in the sparse checkout')), |
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|
246 |
('d', 'delete', False, _('delete an include/exclude rule')), |
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|
247 |
('f', 'force', False, _('allow changing rules even with pending changes')), |
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|
248 |
('', 'enable-profile', False, _('enables the specified profile')), |
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|
249 |
('', 'disable-profile', False, _('disables the specified profile')), |
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|
250 |
('', 'import-rules', False, _('imports rules from a file')), |
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251 |
('', 'clear-rules', False, _('clears local include/exclude rules')), |
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252 |
('', 'refresh', False, _('updates the working after sparseness changes')), |
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253 |
('', 'reset', False, _('makes the repo full again')), |
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254 |
] + commands.templateopts, |
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|
255 |
_('[--OPTION] PATTERN...'), |
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|
256 |
helpbasic=True) |
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|
257 |
def debugsparse(ui, repo, *pats, **opts): |
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258 |
"""make the current checkout sparse, or edit the existing checkout |
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259 |
|
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260 |
The sparse command is used to make the current checkout sparse. |
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261 |
This means files that don't meet the sparse condition will not be |
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|
262 |
written to disk, or show up in any working copy operations. It does |
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|
263 |
not affect files in history in any way. |
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|
264 |
|
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|
265 |
Passing no arguments prints the currently applied sparse rules. |
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|
266 |
|
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267 |
--include and --exclude are used to add and remove files from the sparse |
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|
268 |
checkout. The effects of adding an include or exclude rule are applied |
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|
269 |
immediately. If applying the new rule would cause a file with pending |
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|
270 |
changes to be added or removed, the command will fail. Pass --force to |
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|
271 |
force a rule change even with pending changes (the changes on disk will |
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|
272 |
be preserved). |
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|
273 |
|
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|
274 |
--delete removes an existing include/exclude rule. The effects are |
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|
275 |
immediate. |
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|
276 |
|
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|
277 |
--refresh refreshes the files on disk based on the sparse rules. This is |
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|
278 |
only necessary if .hg/sparse was changed by hand. |
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|
279 |
|
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|
280 |
--enable-profile and --disable-profile accept a path to a .hgsparse file. |
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|
281 |
This allows defining sparse checkouts and tracking them inside the |
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changeset
|
282 |
repository. This is useful for defining commonly used sparse checkouts for |
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|
283 |
many people to use. As the profile definition changes over time, the sparse |
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|
284 |
checkout will automatically be updated appropriately, depending on which |
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|
285 |
changeset is checked out. Changes to .hgsparse are not applied until they |
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|
286 |
have been committed. |
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diff
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|
287 |
|
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|
288 |
--import-rules accepts a path to a file containing rules in the .hgsparse |
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|
289 |
format, allowing you to add --include, --exclude and --enable-profile rules |
abd7dedbaa36
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diff
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|
290 |
in bulk. Like the --include, --exclude and --enable-profile switches, the |
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diff
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|
291 |
changes are applied immediately. |
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|
292 |
|
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|
293 |
--clear-rules removes all local include and exclude rules, while leaving |
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|
294 |
any enabled profiles in place. |
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|
295 |
|
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|
296 |
Returns 0 if editing the sparse checkout succeeds. |
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|
297 |
""" |
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py3: use byteskwargs in sparse.py
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|
298 |
opts = pycompat.byteskwargs(opts) |
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|
299 |
include = opts.get('include') |
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|
300 |
exclude = opts.get('exclude') |
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|
301 |
force = opts.get('force') |
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|
302 |
enableprofile = opts.get('enable_profile') |
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|
303 |
disableprofile = opts.get('disable_profile') |
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|
304 |
importrules = opts.get('import_rules') |
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parents:
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changeset
|
305 |
clearrules = opts.get('clear_rules') |
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parents:
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|
306 |
delete = opts.get('delete') |
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|
307 |
refresh = opts.get('refresh') |
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parents:
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changeset
|
308 |
reset = opts.get('reset') |
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parents:
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|
309 |
count = sum([include, exclude, enableprofile, disableprofile, delete, |
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diff
changeset
|
310 |
importrules, refresh, clearrules, reset]) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
311 |
if count > 1: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
312 |
raise error.Abort(_("too many flags specified")) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
313 |
|
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
314 |
if count == 0: |
abd7dedbaa36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
315 |
if repo.vfs.exists('sparse'): |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
316 |
ui.status(repo.vfs.read("sparse") + "\n") |
33304
3e1accab7447
sparse: move some temporary includes functions into core
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parents:
33303
diff
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|
317 |
temporaryincludes = sparse.readtemporaryincludes(repo) |
33289
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|
318 |
if temporaryincludes: |
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|
319 |
ui.status(_("Temporarily Included Files (for merge/rebase):\n")) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
320 |
ui.status(("\n".join(temporaryincludes) + "\n")) |
41988
f9344d04909e
debugsparse: abort if the repository is not sparse instead of ui.status()
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41676
diff
changeset
|
321 |
return |
33289
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
322 |
else: |
41988
f9344d04909e
debugsparse: abort if the repository is not sparse instead of ui.status()
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41676
diff
changeset
|
323 |
raise error.Abort(_('the debugsparse command is only supported on' |
f9344d04909e
debugsparse: abort if the repository is not sparse instead of ui.status()
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41676
diff
changeset
|
324 |
' sparse repositories')) |
33289
abd7dedbaa36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
325 |
|
abd7dedbaa36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
326 |
if include or exclude or delete or reset or enableprofile or disableprofile: |
33374
4dc04cdf2520
sparse: move config updating function into core
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33373
diff
changeset
|
327 |
sparse.updateconfig(repo, pats, opts, include=include, exclude=exclude, |
4dc04cdf2520
sparse: move config updating function into core
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33373
diff
changeset
|
328 |
reset=reset, delete=delete, |
4dc04cdf2520
sparse: move config updating function into core
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33373
diff
changeset
|
329 |
enableprofile=enableprofile, |
4dc04cdf2520
sparse: move config updating function into core
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33373
diff
changeset
|
330 |
disableprofile=disableprofile, force=force) |
33289
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
331 |
|
abd7dedbaa36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
332 |
if importrules: |
33371
c6415195fa78
sparse: move code for importing rules from files into core
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33370
diff
changeset
|
333 |
sparse.importfromfiles(repo, opts, pats, force=force) |
33289
abd7dedbaa36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
334 |
|
abd7dedbaa36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
335 |
if clearrules: |
33354
4695f1829045
sparse: move code for clearing rules to core
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33353
diff
changeset
|
336 |
sparse.clearrules(repo, force=force) |
33289
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changeset
|
337 |
|
abd7dedbaa36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
338 |
if refresh: |
abd7dedbaa36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
339 |
try: |
abd7dedbaa36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
340 |
wlock = repo.wlock() |
abd7dedbaa36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
341 |
fcounts = map( |
abd7dedbaa36
sparse: vendor Facebook-developed extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
342 |
len, |
33324
33d0859c37bd
sparse: move working directory refreshing into core
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33323
diff
changeset
|
343 |
sparse.refreshwdir(repo, repo.status(), sparse.matcher(repo), |
33d0859c37bd
sparse: move working directory refreshing into core
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33323
diff
changeset
|
344 |
force=force)) |
33355
9087f9997f42
sparse: move printing of sparse config changes function into core
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33354
diff
changeset
|
345 |
sparse.printchanges(ui, opts, added=fcounts[0], dropped=fcounts[1], |
9087f9997f42
sparse: move printing of sparse config changes function into core
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33354
diff
changeset
|
346 |
conflicting=fcounts[2]) |
33289
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
347 |
finally: |
abd7dedbaa36
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
348 |
wlock.release() |