Mercurial > hgsubversion
annotate rebuildmeta.py @ 296:9be04de434ed
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> |
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date | Fri, 27 Mar 2009 01:09:36 +0100 |
parents | 30df375590d1 |
children | b5ef9a404f5d 2117cb0118fe |
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1 import os |
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2 import pickle |
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3 |
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4 from mercurial import node |
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5 from mercurial import util as mutil |
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6 |
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7 import svnwrap |
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8 import util |
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9 |
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10 def rebuildmeta(ui, repo, hg_repo_path, args, **opts): |
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11 """rebuild hgsubversion metadata using values stored in revisions |
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12 """ |
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13 if len(args) != 1: |
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14 raise mutil.Abort('You must pass the svn URI used to create this repo.') |
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15 uuid = None |
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16 url = args[0].rstrip('/') |
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17 svn = svnwrap.SubversionRepo(url=url) |
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18 subdir = svn.subdir |
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19 svnmetadir = os.path.join(repo.path, 'svn') |
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20 if not os.path.exists(svnmetadir): |
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21 os.makedirs(svnmetadir) |
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22 |
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23 revmap = open(os.path.join(svnmetadir, 'rev_map'), 'w') |
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24 revmap.write('1\n') |
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25 last_rev = -1 |
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26 branchinfo = {} |
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27 noderevnums = {} |
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28 for rev in repo: |
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29 ctx = repo[rev] |
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30 convinfo = ctx.extra().get('convert_revision', None) |
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31 if convinfo: |
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32 assert convinfo.startswith('svn:') |
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33 revpath, revision = convinfo[40:].split('@') |
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34 if subdir and subdir[0] != '/': |
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35 subdir = '/' + subdir |
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36 if subdir and subdir[-1] == '/': |
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37 subdir = subdir[:-1] |
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38 assert revpath.startswith(subdir), ('That does not look like the ' |
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39 'right location in the repo.') |
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40 if uuid is None: |
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41 uuid = convinfo[4:40] |
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42 assert uuid == svn.uuid, 'UUIDs did not match!' |
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43 urlfile = open(os.path.join(svnmetadir, 'url'), 'w') |
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44 urlfile.write(url) |
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45 urlfile.close() |
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46 uuidfile = open(os.path.join(svnmetadir, 'uuid'), 'w') |
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47 uuidfile.write(uuid) |
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48 uuidfile.close() |
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49 commitpath = revpath[len(subdir)+1:] |
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50 if commitpath.startswith('branches'): |
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51 commitpath = commitpath[len('branches/'):] |
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52 elif commitpath == 'trunk': |
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53 commitpath = '' |
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54 else: |
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55 assert False, 'Unhandled case in rebuildmeta' |
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56 revmap.write('%s %s %s\n' % (revision, |
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57 node.hex(ctx.node()), |
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58 commitpath)) |
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59 revision = int(revision) |
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60 noderevnums[ctx.node()] = revision |
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61 if revision > last_rev: |
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62 last_rev = revision |
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63 branch = ctx.branch() |
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64 if branch == 'default': |
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65 branch = None |
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66 if branch not in branchinfo: |
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67 parent = ctx.parents()[0] |
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68 if (parent.node() in noderevnums |
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69 and parent.branch() != ctx.branch()): |
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70 parentbranch = parent.branch() |
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71 if parentbranch == 'default': |
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72 parentbranch = None |
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73 else: |
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74 parentbranch = None |
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75 branchinfo[branch] = (parentbranch, |
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76 noderevnums.get(parent.node(), 0), |
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77 revision) |
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78 for c in ctx.children(): |
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79 if c.branch() == 'closed-branches': |
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80 if branch in branchinfo: |
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81 del branchinfo[branch] |
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82 lastrevfile = open(os.path.join(svnmetadir, 'last_rev'), 'w') |
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83 lastrevfile.write(str(last_rev)) |
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84 lastrevfile.close() |
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85 branchinfofile = open(os.path.join(svnmetadir, 'branch_info'), 'w') |
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86 pickle.dump(branchinfo, branchinfofile) |
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87 branchinfofile.close() |
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88 tagsinfo = {} |
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89 realtags = svn.tags |
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90 tagsleft = realtags.items() |
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91 while tagsleft: |
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92 tag, tagparent = tagsleft.pop(0) |
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93 source, rev = tagparent |
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94 if source.startswith('tags/'): |
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95 src = source[len('tags/'):] |
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96 if src in tagsinfo: |
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97 tagsinfo[tag] = tagsinfo[src] |
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98 elif src in realtags: |
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99 if (realtags[src][1] <= last_rev |
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100 or realtags[src][0].startswith('tags/')): |
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101 tagsleft.append(src) |
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102 else: |
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103 older_tags = svn.tags_at_rev(rev) |
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104 newsrc, newrev = older_tags[src] |
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105 tagsleft.append((tag, (newsrc, newrev))) |
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106 if source.startswith('branches/') or source == 'trunk': |
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107 source = determinebranch(source) |
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108 if rev <= last_rev: |
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109 tagsinfo[tag] = source, rev |
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110 tagsinfofile = open(os.path.join(svnmetadir, 'tag_info'), 'w') |
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111 pickle.dump(tagsinfo, tagsinfofile) |
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112 tagsinfofile.close() |
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113 rebuildmeta = util.register_subcommand('rebuildmeta')(rebuildmeta) |
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Add a naive hg svn version command that works as long as hgsubversion is run from a checkout.
Augie Fackler <durin42@gmail.com>
parents:
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114 rebuildmeta = util.command_needs_no_url(rebuildmeta) |
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utility_commands: Implement rebuildmeta so that metadata can be rebuilt.
Augie Fackler <durin42@gmail.com>
parents:
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changeset
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115 |
ba801f44d240
utility_commands: Implement rebuildmeta so that metadata can be rebuilt.
Augie Fackler <durin42@gmail.com>
parents:
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116 def determinebranch(branch): |
ba801f44d240
utility_commands: Implement rebuildmeta so that metadata can be rebuilt.
Augie Fackler <durin42@gmail.com>
parents:
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117 if branch.startswith('branches'): |
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utility_commands: Implement rebuildmeta so that metadata can be rebuilt.
Augie Fackler <durin42@gmail.com>
parents:
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118 branch = branch[len('branches/'):] |
ba801f44d240
utility_commands: Implement rebuildmeta so that metadata can be rebuilt.
Augie Fackler <durin42@gmail.com>
parents:
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119 elif branch == 'trunk': |
ba801f44d240
utility_commands: Implement rebuildmeta so that metadata can be rebuilt.
Augie Fackler <durin42@gmail.com>
parents:
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120 branch = None |
ba801f44d240
utility_commands: Implement rebuildmeta so that metadata can be rebuilt.
Augie Fackler <durin42@gmail.com>
parents:
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changeset
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121 else: |
ba801f44d240
utility_commands: Implement rebuildmeta so that metadata can be rebuilt.
Augie Fackler <durin42@gmail.com>
parents:
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122 assert False, 'Unhandled case while regenerating metadata.' |
ba801f44d240
utility_commands: Implement rebuildmeta so that metadata can be rebuilt.
Augie Fackler <durin42@gmail.com>
parents:
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123 return branch |