annotate util.py @ 225:2117cb0118fe

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 df4611050286
children ced45b753ba7
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1 import os
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2 import shutil
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3
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4 from mercurial import hg
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5 from mercurial import node
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6
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7 svn_subcommands = { }
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8 def register_subcommand(name):
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9 def inner(fn):
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10 svn_subcommands[name] = fn
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11 return fn
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12 return inner
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13
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14 svn_commands_nourl = set()
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15 def command_needs_no_url(fn):
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16 svn_commands_nourl.add(fn)
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17 return fn
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18
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19
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20 def version(ui):
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21 """Guess the version of hgsubversion.
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22 """
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23 # TODO make this say something other than "unknown" for installed hgsubversion
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24 repo = hg.repository(ui, os.path.dirname(__file__))
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25 ver = repo.dirstate.parents()[0]
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26 return node.hex(ver)[:12]
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29 def generate_help():
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30 ret = ['hg svn ...', '',
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31 'subcommands for Subversion integration', '',
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32 'list of subcommands:', '']
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33
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34 for name, func in sorted(svn_subcommands.items()):
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35 short_description = (func.__doc__ or '').splitlines()[0]
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36 ret.append(" %-10s %s" % (name, short_description))
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37
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38 return "\n".join(ret) + '\n'
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41 def normalize_url(svn_url):
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42 return svn_url.rstrip('/')
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45 def wipe_all_files(hg_wc_path):
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46 files = [f for f in os.listdir(hg_wc_path) if f != '.hg']
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47 for f in files:
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48 f = os.path.join(hg_wc_path, f)
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49 if os.path.isdir(f):
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50 shutil.rmtree(f)
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51 else:
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52 os.remove(f)
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53
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54 REVMAP_FILE_VERSION = 1
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55 def parse_revmap(revmap_filename):
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56 revmap = {}
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57 f = open(revmap_filename)
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58 ver = int(f.readline())
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59 if ver == 1:
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60 for l in f:
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61 revnum, node_hash, branch = l.split(' ', 2)
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62 if branch == '\n':
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63 branch = None
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64 else:
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65 branch = branch[:-1]
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66 revmap[int(revnum), branch] = node.bin(node_hash)
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67 f.close()
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68 else: #pragma: no cover
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69 print ('Your revmap was made by a newer version of hgsubversion.'
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70 ' Please upgrade.')
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71 raise NotImplementedError
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72 return revmap
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73
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75 class PrefixMatch(object):
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76 def __init__(self, prefix):
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77 self.p = prefix
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78
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79 def files(self):
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80 return []
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81
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82 def __call__(self, fn):
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83 return fn.startswith(self.p)
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84
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85 def outgoing_revisions(ui, repo, hg_editor, reverse_map, sourcerev):
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86 """Given a repo and an hg_editor, determines outgoing revisions for the
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87 current working copy state.
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88 """
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89 outgoing_rev_hashes = []
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90 if sourcerev in reverse_map:
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91 return
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92 sourcerev = repo[sourcerev]
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93 while (not sourcerev.node() in reverse_map
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94 and sourcerev.node() != node.nullid):
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95 outgoing_rev_hashes.append(sourcerev.node())
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96 sourcerev = sourcerev.parents()
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97 assert len(sourcerev) == 1
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98 sourcerev = sourcerev[0]
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99 if sourcerev.node() != node.nullid:
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100 return outgoing_rev_hashes
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101
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102 def build_extra(revnum, branch, uuid, subdir):
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103 # TODO this needs to be fixed with the new revmap
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104 extra = {}
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105 branchpath = 'trunk'
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106 if branch:
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107 extra['branch'] = branch
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108 branchpath = 'branches/%s' % branch
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109 if subdir and subdir[-1] == '/':
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110 subdir = subdir[:-1]
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111 if subdir and subdir[0] != '/':
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112 subdir = '/' + subdir
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113 extra['convert_revision'] = 'svn:%(uuid)s%(path)s@%(rev)s' % {
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114 'uuid': uuid,
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115 'path': '%s/%s' % (subdir , branchpath),
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116 'rev': revnum,
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117 }
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118 return extra
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119
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120
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121 def is_svn_repo(repo):
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122 return os.path.exists(os.path.join(repo.path, 'svn'))
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123
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124 default_commit_msg = '*** empty log message ***'
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125
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126 def describe_revision(ui, r):
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127 try:
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128 msg = [s for s in map(str.strip, r.message.splitlines()) if s][0]
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129 except:
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130 msg = default_commit_msg
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131
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132 ui.status(('[r%d] %s: %s' % (r.revnum, r.author, msg))[:80] + '\n')
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133
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134 def describe_commit(ui, h, b):
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135 ui.note(' committed to "%s" as %s\n' % ((b or 'default'), node.short(h)))