Mercurial > hg > mercurial-crew-with-dirclash

annotate hgext/fetch.py @ 5452:82b4ff3abbcd

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bdiff: tweaks for large files - adjust the common line threshold to .1% this speeds up a delta of 7M lines of source from 10m to 40s - adjust the scaling of the hash array down a bit as it was raising the peak memory usage significantly
author Matt Mackall <mpm@selenic.com>
date Thu, 11 Oct 2007 00:46:56 -0500
parents c80af96943aa
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # fetch.py - pull and merge remote changes
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2 #
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3 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
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4 #
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5 # This software may be used and distributed according to the terms
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6 # of the GNU General Public License, incorporated herein by reference.
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7
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8 from mercurial.i18n import _
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9 from mercurial.node import *
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10 from mercurial import commands, cmdutil, hg, node, util
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11
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12 def fetch(ui, repo, source='default', **opts):
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13 '''Pull changes from a remote repository, merge new changes if needed.
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14
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15 This finds all changes from the repository at the specified path
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16 or URL and adds them to the local repository.
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17
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18 If the pulled changes add a new head, the head is automatically
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19 merged, and the result of the merge is committed. Otherwise, the
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20 working directory is updated.'''
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21
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22 def postincoming(other, modheads):
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23 if modheads == 0:
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24 return 0
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25 if modheads == 1:
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26 return hg.clean(repo, repo.changelog.tip())
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27 newheads = repo.heads(parent)
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28 newchildren = [n for n in repo.heads(parent) if n != parent]
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29 newparent = parent
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30 if newchildren:
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31 newparent = newchildren[0]
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32 hg.clean(repo, newparent)
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33 newheads = [n for n in repo.heads() if n != newparent]
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34 err = False
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35 if newheads:
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36 ui.status(_('merging with new head %d:%s\n') %
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37 (repo.changelog.rev(newheads[0]), short(newheads[0])))
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38 err = hg.merge(repo, newheads[0], remind=False)
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39 if not err and len(newheads) > 1:
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40 ui.status(_('not merging with %d other new heads '
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41 '(use "hg heads" and "hg merge" to merge them)') %
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42 (len(newheads) - 1))
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43 if not err:
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44 mod, add, rem = repo.status()[:3]
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45 message = (cmdutil.logmessage(opts) or
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46 (_('Automated merge with %s') % other.url()))
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47 n = repo.commit(mod + add + rem, message,
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48 opts['user'], opts['date'],
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49 force_editor=opts.get('force_editor'))
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50 ui.status(_('new changeset %d:%s merges remote changes '
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51 'with local\n') % (repo.changelog.rev(n),
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52 short(n)))
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53 def pull():
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54 cmdutil.setremoteconfig(ui, opts)
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55
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56 other = hg.repository(ui, ui.expandpath(source))
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57 ui.status(_('pulling from %s\n') % ui.expandpath(source))
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58 revs = None
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59 if opts['rev'] and not other.local():
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60 raise util.Abort(_("fetch -r doesn't work for remote repositories yet"))
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61 elif opts['rev']:
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62 revs = [other.lookup(rev) for rev in opts['rev']]
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63 modheads = repo.pull(other, heads=revs)
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64 return postincoming(other, modheads)
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65
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66 parent, p2 = repo.dirstate.parents()
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67 if parent != repo.changelog.tip():
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68 raise util.Abort(_('working dir not at tip '
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69 '(use "hg update" to check out tip)'))
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70 if p2 != nullid:
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71 raise util.Abort(_('outstanding uncommitted merge'))
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72 wlock = lock = None
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73 try:
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74 wlock = repo.wlock()
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75 lock = repo.lock()
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76 mod, add, rem = repo.status()[:3]
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77 if mod or add or rem:
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78 raise util.Abort(_('outstanding uncommitted changes'))
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79 if len(repo.heads()) > 1:
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80 raise util.Abort(_('multiple heads in this repository '
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81 '(use "hg heads" and "hg merge" to merge)'))
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82 return pull()
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83 finally:
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84 del lock, wlock
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85
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86 cmdtable = {
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87 'fetch':
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88 (fetch,
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89 [('r', 'rev', [], _('a specific revision you would like to pull')),
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90 ('f', 'force-editor', None, _('edit commit message')),
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91 ] + commands.commitopts + commands.commitopts2 + commands.remoteopts,
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92 _('hg fetch [SOURCE]')),
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93 }