Mercurial > hgsubversion

annotate hgsubversion/util.py @ 469:5567af673f83

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Revive svn+http(s) URLs support (issue94) Telling svn from mercurial repository automatically is not always possible, or at least not seamlessly. Let 'http://repo.com/svn' be an svn repository, protected with basic authentication. Trying to clone it directly does something like: 1- Open it like a mercurial repository: * send between command, ask for credentials, fail * fallback to static-http, ask for crendentials two times, fail 2- Open it like an svn repository Mercurial [auth] facility is helpful here, but few people know about it, and it may seem weird to store svn credentials in mercurial configuration. An svn-like password manager would not help either because all connections attempts in [1] fail and it's unlikely we would store credentials in this situation. Instead, we can clone 'svn+http://repo.com/svn', which will skip step [1].
author Patrick Mezard <pmezard@gmail.com>
date Sat, 18 Jul 2009 20:44:33 -0500
parents d487bbe0e8af
children 15443c592f7a
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1 import re
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2 import os
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3 import urllib
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4
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5 from mercurial import hg
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6 from mercurial import node
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7 from mercurial import util as hgutil
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8
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10 b_re = re.compile(r'^\+\+\+ b\/([^\n]*)', re.MULTILINE)
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11 a_re = re.compile(r'^--- a\/([^\n]*)', re.MULTILINE)
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12 devnull_re = re.compile(r'^([-+]{3}) /dev/null', re.MULTILINE)
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13 header_re = re.compile(r'^diff --git .* b\/(.*)', re.MULTILINE)
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14 newfile_devnull_re = re.compile(r'^--- /dev/null\n\+\+\+ b/([^\n]*)',
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15 re.MULTILINE)
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17
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18 def formatrev(rev):
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19 if rev == -1:
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20 return '\t(working copy)'
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21 return '\t(revision %d)' % rev
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23
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24 def filterdiff(diff, oldrev, newrev):
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25 diff = newfile_devnull_re.sub(r'--- \1\t(revision 0)' '\n'
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26 r'+++ \1\t(working copy)',
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27 diff)
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28 oldrev = formatrev(oldrev)
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29 newrev = formatrev(newrev)
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30 diff = a_re.sub(r'--- \1'+ oldrev, diff)
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31 diff = b_re.sub(r'+++ \1' + newrev, diff)
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32 diff = devnull_re.sub(r'\1 /dev/null\t(working copy)', diff)
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33 diff = header_re.sub(r'Index: \1' + '\n' + ('=' * 67), diff)
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34 return diff
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37 def parentrev(ui, repo, meta, hashes):
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38 """Find the svn parent revision of the repo's dirstate.
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39 """
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40 workingctx = repo.parents()[0]
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41 outrev = outgoing_revisions(repo, hashes, workingctx.node())
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42 if outrev:
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43 workingctx = repo[outrev[-1]].parents()[0]
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44 return workingctx
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46
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47 def islocalrepo(url):
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48 if not url.startswith('file:///'):
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49 return False
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50 if '#' in url.split('/')[-1]: # strip off #anchor
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51 url = url[:url.rfind('#')]
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52 path = url[len('file://'):]
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53 path = urllib.url2pathname(path).replace(os.sep, '/')
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54 while '/' in path:
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55 if reduce(lambda x,y: x and y,
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56 map(lambda p: os.path.exists(os.path.join(path, p)),
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57 ('hooks', 'format', 'db', ))):
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58 return True
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59 path = path.rsplit('/', 1)[0]
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60 return False
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61
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63 def version(ui):
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64 """Guess the version of hgsubversion.
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65 """
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66 # TODO make this say something other than "unknown" for installed hgsubversion
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67 dn = os.path.dirname
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68 repo = hg.repository(ui, dn(dn(__file__)))
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69 ver = repo.dirstate.parents()[0]
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70 return node.hex(ver)[:12]
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73 def normalize_url(url):
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74 if url.startswith('svn+http://'):
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75 url = url[4:]
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76 url, revs, checkout = hg.parseurl(url)
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77 url = url.rstrip('/')
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78 if checkout:
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79 url = '%s#%s' % (url, checkout)
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80 return url
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82
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83 class PrefixMatch(object):
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84 def __init__(self, prefix):
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85 self.p = prefix
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86
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87 def files(self):
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88 return []
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89
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90 def __call__(self, fn):
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91 return fn.startswith(self.p)
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92
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93 def outgoing_revisions(repo, reverse_map, sourcerev):
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94 """Given a repo and an hg_editor, determines outgoing revisions for the
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95 current working copy state.
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96 """
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97 outgoing_rev_hashes = []
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98 if sourcerev in reverse_map:
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99 return
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100 sourcerev = repo[sourcerev]
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101 while (not sourcerev.node() in reverse_map
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102 and sourcerev.node() != node.nullid):
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103 outgoing_rev_hashes.append(sourcerev.node())
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104 sourcerev = sourcerev.parents()
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105 if len(sourcerev) != 1:
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106 raise hgutil.Abort("Sorry, can't find svn parent of a merge revision.")
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107 sourcerev = sourcerev[0]
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108 if sourcerev.node() != node.nullid:
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109 return outgoing_rev_hashes
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110
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111 default_commit_msg = '*** empty log message ***'
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112
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113 def describe_commit(ui, h, b):
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114 ui.note(' committed to "%s" as %s\n' % ((b or 'default'), node.short(h)))
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115
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116
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117 def swap_out_encoding(new_encoding="UTF-8"):
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118 from mercurial import encoding
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119 old = encoding.encoding
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120 encoding.encoding = new_encoding
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121 return old
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124 def aresamefiles(parentctx, childctx, files):
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125 """Assuming all files exist in childctx and parentctx, return True
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126 if none of them was changed in-between.
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127 """
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128 if parentctx == childctx:
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129 return True
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130 if parentctx.rev() > childctx.rev():
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131 parentctx, childctx = childctx, parentctx
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132
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133 def selfandancestors(selfctx):
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134 yield selfctx
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135 for ctx in selfctx.ancestors():
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136 yield ctx
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137
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138 files = dict.fromkeys(files)
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139 for pctx in selfandancestors(childctx):
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140 if pctx.rev() <= parentctx.rev():
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141 return True
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142 for f in pctx.files():
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143 if f in files:
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144 return False
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145 # parentctx is not an ancestor of childctx, files are unrelated
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146 return False