Mercurial > hg
annotate hgext/children.py @ 35506:fa865878a849
lfs: show a friendly message when pushing lfs to a server without lfs enabled
Upfront disclaimer: I don't know anything about the wire protocol, and this was
pretty much cargo-culted from largefiles, and then clonebundles, since it seems
more modern. I was surprised that exchange.push() will ensure all of the proper
requirements when exchanging between two local repos, but doesn't care when one
is remote.
All this new capability marker does is inform the client that the extension is
enabled remotely. It may or may not contain commits with external blobs.
Open issues:
- largefiles uses 'largefiles=serve' for its capability. Someday I hope to
be able to push lfs blobs to an `hg serve` instance. That will probably
require a distinct capability. Should it change to '=serve' then? Or just
add an 'lfs-serve' capability then?
- The flip side of this is more complicated. It looks like largefiles adds an
'lheads' command for the client to signal to the server that the extension
is loaded. That is then converted to 'heads' and sent through the normal
wire protocol plumbing. A client using the 'heads' command directly is
kicked out with a message indicating that the largefiles extension must be
loaded. We could do similar with 'lfsheads', but then a repo with both
largefiles and lfs blobs can't be pushed over the wire. Hopefully somebody
with more wire protocol experience can think of something else. I see
'x-hgarg-1' on some commands in the tests, but not on heads, and didn't dig
any further.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sat, 23 Dec 2017 17:49:12 -0500 |
parents | 11a372d80496 |
children | c8e2d6ed1f9e |
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1 # Mercurial extension to provide the 'hg children' command |
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2 # |
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3 # Copyright 2007 by Intevation GmbH <intevation@intevation.de> |
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4 # |
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5 # Author(s): |
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6 # Thomas Arendsen Hein <thomas@intevation.de> |
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7 # |
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8 # This software may be used and distributed according to the terms of the |
10263 | 9 # GNU General Public License version 2 or any later version. |
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10 |
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11 '''command to display child changesets (DEPRECATED) |
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12 |
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13 This extension is deprecated. You should use :hg:`log -r |
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14 "children(REV)"` instead. |
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15 ''' |
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16 |
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17 from __future__ import absolute_import |
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18 |
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19 from mercurial.i18n import _ |
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20 from mercurial import ( |
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21 cmdutil, |
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22 pycompat, |
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23 registrar, |
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24 ) |
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25 |
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26 templateopts = cmdutil.templateopts |
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27 |
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28 cmdtable = {} |
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29 command = registrar.command(cmdtable) |
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30 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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31 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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32 # be specifying the version(s) of Mercurial they are tested with, or |
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33 # leave the attribute unspecified. |
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34 testedwith = 'ships-with-hg-core' |
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35 |
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36 @command('children', |
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37 [('r', 'rev', '', |
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38 _('show children of the specified revision'), _('REV')), |
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39 ] + templateopts, |
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40 _('hg children [-r REV] [FILE]'), |
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41 inferrepo=True) |
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42 def children(ui, repo, file_=None, **opts): |
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43 """show the children of the given or working directory revision |
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44 |
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45 Print the children of the working directory's revisions. If a |
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46 revision is given via -r/--rev, the children of that revision will |
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47 be printed. If a file argument is given, revision in which the |
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48 file was last changed (after the working directory revision or the |
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49 argument to --rev if given) is printed. |
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50 |
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51 Please use :hg:`log` instead:: |
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52 |
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53 hg children => hg log -r "children(.)" |
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54 hg children -r REV => hg log -r "children(REV)" |
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55 |
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56 See :hg:`help log` and :hg:`help revsets.children`. |
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57 |
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58 """ |
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59 opts = pycompat.byteskwargs(opts) |
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60 rev = opts.get('rev') |
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61 if file_: |
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62 fctx = repo.filectx(file_, changeid=rev) |
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63 childctxs = [fcctx.changectx() for fcctx in fctx.children()] |
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64 else: |
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65 ctx = repo[rev] |
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66 childctxs = ctx.children() |
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67 |
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68 displayer = cmdutil.show_changeset(ui, repo, opts) |
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69 for cctx in childctxs: |
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70 displayer.show(cctx) |
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71 displayer.close() |