Mercurial > hgsubversion

annotate __init__.py @ 225:2117cb0118fe

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Get rid of .hg/svn/last_rev: We now calculate the last known revision by iterating over all known revisions and finding the highest number. Theoretically, we might be able to simply read the latest entry, but in practice, that's a bug waiting to happen. For instance, we might want to achieve compatibility with '.hg/shamap' as generated by the ConvertExtension, and it not only cannot offer a guarantee of linearity, but it also allows more than one conversion to source exists. I'd say we have other problems to care about until this turns up as a hotspot in profiling. Such as why we leak circa 100MB of memory per 1000 revisions converted ;)
author Dan Villiom Podlaski Christiansen <danchr@gmail.com>
date Fri, 27 Mar 2009 01:09:36 +0100
parents 2165461d2dd8
children 33e885f5f86a 79440ed81011
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1 '''integration with Subversion repositories
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2
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3 This extension allows Mercurial to act as a Subversion client, for
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4 fast incremental, bidirectional updates.
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5
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6 It is *not* ready yet for production use. You should only be using
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7 this if you're ready to hack on it, and go diving into the internals
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8 of Mercurial and/or Subversion.
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9
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10 Before using hgsubversion, it is *strongly* encouraged to run the
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11 automated tests. See `README' in the hgsubversion directory for
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12 details.
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13 '''
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14
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15 import os
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16
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17 from mercurial import commands
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18 from mercurial import hg
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19 from mercurial import util as mutil
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20
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21 from svn import core
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23 import svncommand
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24 import fetch_command
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25 import tag_repo
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26 import util
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27
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28 def reposetup(ui, repo):
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29 if not util.is_svn_repo(repo):
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30 return
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31
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32 repo.__class__ = tag_repo.generate_repo_class(ui, repo)
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34
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35 def svn(ui, repo, subcommand, *args, **opts):
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36 '''see detailed help for list of subcommands'''
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37 try:
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38 return svncommand.svncmd(ui, repo, subcommand, *args, **opts)
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39 except core.SubversionException, e:
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40 if e.apr_err == core.SVN_ERR_RA_SERF_SSL_CERT_UNTRUSTED:
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41 raise mutil.Abort('It appears svn does not trust the ssl cert for this site.\n'
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42 'Please try running svn ls on that url first.')
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43 raise
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46 def svn_fetch(ui, svn_url, hg_repo_path=None, **opts):
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47 '''clone Subversion repository to a local Mercurial repository.
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48
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49 If no destination directory name is specified, it defaults to the
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50 basename of the source plus "-hg".
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51
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52 You can specify multiple paths for the location of tags using comma
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53 separated values.
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54 '''
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55 if not hg_repo_path:
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56 hg_repo_path = hg.defaultdest(svn_url) + "-hg"
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57 ui.status("Assuming destination %s\n" % hg_repo_path)
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58 should_update = not os.path.exists(hg_repo_path)
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59 svn_url = util.normalize_url(svn_url)
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60 try:
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61 res = fetch_command.fetch_revisions(ui, svn_url, hg_repo_path, **opts)
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62 except core.SubversionException, e:
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63 if e.apr_err == core.SVN_ERR_RA_SERF_SSL_CERT_UNTRUSTED:
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64 raise mutil.Abort('It appears svn does not trust the ssl cert for this site.\n'
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65 'Please try running svn ls on that url first.')
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66 raise
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67 if (res is None or res == 0) and should_update:
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68 repo = hg.repository(ui, hg_repo_path)
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69 commands.update(ui, repo, repo['tip'].node())
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70 return res
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72 commands.norepo += " svnclone"
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73 cmdtable = {
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74 "svn":
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75 (svn,
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76 [('u', 'svn-url', '', 'path to the Subversion server.'),
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77 ('', 'stupid', False, 'be stupid and use diffy replay.'),
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78 ('A', 'authors', '', 'username mapping filename'),
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79 ('', 'filemap', '',
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80 'remap file to exclude paths or include only certain paths'),
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81 ('', 'force', False, 'force an operation to happen'),
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82 ],
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83 svncommand.generate_help(),
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84 ),
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85 "svnclone":
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86 (svn_fetch,
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87 [('S', 'skipto-rev', '0', 'skip commits before this revision.'),
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88 ('', 'stupid', False, 'be stupid and use diffy replay.'),
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89 ('T', 'tag-locations', 'tags', 'Relative path to Subversion tags.'),
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90 ('A', 'authors', '', 'username mapping filename'),
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91 ('', 'filemap', '',
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92 'remap file to exclude paths or include only certain paths'),
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93 ],
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94 'hg svnclone source [dest]'),
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95 }