Mercurial > hgsubversion
annotate svnwrap/svn_swig_wrapper.py @ 7:79b0e059319d
Reorganized the testing infrastructure a bit so that svnwrap is really separate from the rest of the project. Also made it easier to add more tests in the future without making the directory full of annoying files.
author | Augie Fackler <durin42@gmail.com> |
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date | Fri, 03 Oct 2008 09:41:25 -0500 |
parents | 1a5bb173170b |
children | 9eb6bf2be1e7 |
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1 import cStringIO |
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2 import getpass |
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3 import os |
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4 import shutil |
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5 import sys |
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6 import tempfile |
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7 |
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8 from svn import client |
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9 from svn import core |
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10 from svn import delta |
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11 from svn import ra |
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12 |
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13 svn_config = core.svn_config_get_config(None) |
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14 |
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15 |
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16 def user_pass_prompt(realm, default_username, ms, pool): |
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17 creds = core.svn_auth_cred_simple_t() |
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18 creds.may_save = ms |
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19 if default_username: |
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20 sys.stderr.write('Auth realm: %s\n' % (realm,)) |
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21 creds.username = default_username |
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22 else: |
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23 sys.stderr.write('Auth realm: %s\n' % (realm,)) |
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24 sys.stderr.write('Username: ') |
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25 sys.stderr.flush() |
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26 creds.username = sys.stdin.readline().strip() |
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27 creds.password = getpass.getpass('Password for %s: ' % creds.username) |
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28 return creds |
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29 |
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30 def _create_auth_baton(pool): |
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31 """Create a Subversion authentication baton. """ |
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32 # Give the client context baton a suite of authentication |
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33 # providers.h |
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34 providers = [ |
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35 client.get_simple_provider(), |
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36 client.get_username_provider(), |
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37 client.get_ssl_client_cert_file_provider(), |
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38 client.get_ssl_client_cert_pw_file_provider(), |
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39 client.get_ssl_server_trust_file_provider(), |
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40 ] |
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41 # Platform-dependant authentication methods |
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42 if hasattr(client, 'get_windows_simple_provider'): |
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43 providers.append(client.get_windows_simple_provider()) |
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44 if hasattr(client, 'get_keychain_simple_provider'): |
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45 providers.append(client.get_keychain_simple_provider()) |
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46 providers.extend([client.get_simple_prompt_provider(user_pass_prompt, 2), |
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47 ]) |
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48 return core.svn_auth_open(providers, pool) |
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49 |
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50 |
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51 class Revision(object): |
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52 """Wrapper for a Subversion revision. |
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53 """ |
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54 def __init__(self, revnum, author, message, date, paths, strip_path=''): |
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55 self.revnum, self.author, self.message = revnum, author, message |
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56 # TODO parse this into a datetime |
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57 self.date = date |
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58 self.paths = {} |
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59 for p in paths: |
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60 self.paths[p[len(strip_path):]] = paths[p] |
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61 |
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62 def __str__(self): |
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63 return 'r%d by %s' % (self.revnum, self.author) |
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64 |
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65 class SubversionRepo(object): |
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66 """Wrapper for a Subversion repository. |
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67 |
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68 This uses the SWIG Python bindings, and will only work on svn >= 1.4. |
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69 It takes a required param, the URL. |
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70 """ |
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71 def __init__(self, url='', username=''): |
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72 self.svn_url = url |
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73 self.uname = username |
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74 self.auth_baton_pool = core.Pool() |
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75 self.auth_baton = _create_auth_baton(self.auth_baton_pool) |
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76 |
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77 self.init_ra_and_client() |
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78 self.uuid = ra.get_uuid(self.ra, self.pool) |
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79 repo_root = ra.get_repos_root(self.ra, self.pool) |
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80 # *will* have a leading '/', would not if we used get_repos_root2 |
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81 self.subdir = url[len(repo_root):] |
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82 if not self.subdir or self.subdir[-1] != '/': |
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83 self.subdir += '/' |
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84 |
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85 def init_ra_and_client(self): |
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86 """Initializes the RA and client layers, because sometimes getting |
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87 unified diffs runs the remote server out of open files. |
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88 """ |
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89 # while we're in here we'll recreate our pool |
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90 self.pool = core.Pool() |
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91 self.client_context = client.create_context() |
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92 core.svn_auth_set_parameter(self.auth_baton, |
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93 core.SVN_AUTH_PARAM_DEFAULT_USERNAME, |
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94 self.uname) |
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95 |
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96 self.client_context.auth_baton = self.auth_baton |
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97 self.client_context.config = svn_config |
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98 self.ra = client.open_ra_session(self.svn_url.encode('utf8'), |
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99 self.client_context) |
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100 |
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101 |
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102 @property |
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103 def HEAD(self): |
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104 return ra.get_latest_revnum(self.ra, self.pool) |
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105 |
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106 @property |
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107 def START(self): |
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108 return 0 |
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109 |
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110 @property |
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111 def branches(self): |
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112 """Get the branches defined in this repo assuming a standard layout. |
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113 """ |
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114 branches = self.list_dir('branches').keys() |
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115 branch_info = {} |
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116 head=self.HEAD |
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117 for b in branches: |
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118 b_path = 'branches/%s' %b |
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119 hist_gen = self.fetch_history_at_paths([b_path], stop=head) |
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120 hist = hist_gen.next() |
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121 source, source_rev = self._get_copy_source(b_path, cached_head=head) |
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122 # This if statement guards against projects that have non-ancestral |
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123 # branches by not listing them has branches |
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124 # Note that they probably are really ancestrally related, but there |
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125 # is just no way for us to know how. |
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126 if source is not None and source_rev is not None: |
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127 branch_info[b] = (source, source_rev, hist.revnum) |
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128 return branch_info |
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129 |
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130 @property |
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131 def tags(self): |
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132 """Get the current tags in this repo assuming a standard layout. |
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133 |
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134 This returns a dictionary of tag: (source path, source rev) |
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135 """ |
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136 tags = self.list_dir('tags').keys() |
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137 tag_info = {} |
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138 head = self.HEAD |
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139 for t in tags: |
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140 tag_info[t] = self._get_copy_source('tags/%s' % t, |
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141 cached_head=head) |
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142 return tag_info |
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143 |
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144 def _get_copy_source(self, path, cached_head=None): |
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145 """Get copy revision for the given path, assuming it was meant to be |
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146 a copy of the entire tree. |
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147 """ |
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148 if not cached_head: |
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149 cached_head = self.HEAD |
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150 hist_gen = self.fetch_history_at_paths([path], stop=cached_head) |
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151 hist = hist_gen.next() |
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152 if hist.paths[path].copyfrom_path is None: |
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153 return None, None |
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154 source = hist.paths[path].copyfrom_path |
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155 source_rev = 0 |
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156 for p in hist.paths: |
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157 if hist.paths[p].copyfrom_rev: |
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158 # We assume that the revision of the source tree as it was |
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159 # copied was actually the revision of the highest revision |
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160 # copied item. This could be wrong, but in practice it will |
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161 # *probably* be correct |
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162 if source_rev < hist.paths[p].copyfrom_rev: |
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163 source_rev = hist.paths[p].copyfrom_rev |
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164 source = source[len(self.subdir):] |
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165 return source, source_rev |
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166 |
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167 def list_dir(self, dir, revision=None): |
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168 """List the contents of a server-side directory. |
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169 |
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170 Returns a dict-like object with one dict key per directory entry. |
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171 |
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172 Args: |
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173 dir: the directory to list, no leading slash |
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174 rev: the revision at which to list the directory, defaults to HEAD |
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175 """ |
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176 if dir[-1] == '/': |
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177 dir = dir[:-1] |
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178 if revision is None: |
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179 revision = self.HEAD |
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180 r = ra.get_dir2(self.ra, dir, revision, core.SVN_DIRENT_KIND, self.pool) |
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181 folders, props, junk = r |
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182 return folders |
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183 |
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184 def revisions(self, start=None, chunk_size=1000): |
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185 """Load the history of this repo. |
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186 |
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187 This is LAZY. It returns a generator, and fetches a small number |
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188 of revisions at a time. |
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189 |
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190 The reason this is lazy is so that you can use the same repo object |
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191 to perform RA calls to get deltas. |
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192 """ |
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193 # NB: you'd think this would work, but you'd be wrong. I'm pretty |
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194 # convinced there must be some kind of svn bug here. |
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195 #return self.fetch_history_at_paths(['tags', 'trunk', 'branches'], |
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196 # start=start) |
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197 # this does the same thing, but at the repo root + filtering. It's |
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198 # kind of tough cookies, sadly. |
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199 for r in self.fetch_history_at_paths([''], start=start, |
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200 chunk_size=chunk_size): |
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201 should_yield = False |
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202 i = 0 |
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203 paths = list(r.paths.keys()) |
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204 while i < len(paths) and not should_yield: |
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205 p = paths[i] |
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206 if (p.startswith('trunk') or p.startswith('tags') |
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207 or p.startswith('branches')): |
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208 should_yield = True |
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209 i += 1 |
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210 if should_yield: |
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211 yield r |
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212 |
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213 |
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214 def fetch_history_at_paths(self, paths, start=None, stop=None, |
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215 chunk_size=1000): |
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216 revisions = [] |
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217 def callback(paths, revnum, author, date, message, pool): |
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218 r = Revision(revnum, author, message, date, paths, |
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219 strip_path=self.subdir) |
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220 revisions.append(r) |
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221 if not start: |
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222 start = self.START |
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223 if not stop: |
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224 stop = self.HEAD |
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225 while stop > start: |
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226 ra.get_log(self.ra, paths, |
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227 start+1, |
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228 stop, |
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229 chunk_size, #limit of how many log messages to load |
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230 True, # don't need to know changed paths |
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231 True, # stop on copies |
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232 callback, |
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233 self.pool) |
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234 if len(revisions) < chunk_size: |
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235 # this means there was no history for the path, so force the |
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236 # loop to exit |
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237 start = stop |
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238 else: |
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239 start = revisions[-1].revnum |
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240 while len(revisions) > 0: |
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241 yield revisions[0] |
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242 revisions.pop(0) |
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243 |
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244 def commit(self, paths, message, file_data, base_revision, dirs): |
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245 """Commits the appropriate targets from revision in editor's store. |
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246 """ |
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247 self.init_ra_and_client() |
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248 commit_info = [] |
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249 def commit_cb(_commit_info, pool): |
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250 commit_info.append(_commit_info) |
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251 editor, edit_baton = ra.get_commit_editor2(self.ra, |
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252 message, |
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253 commit_cb, |
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254 None, |
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255 False) |
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256 checksum = [] |
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257 def driver_cb(parent, path, pool): |
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258 if path in dirs: |
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259 return baton |
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260 base_text, new_text, action = file_data[path] |
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261 compute_delta = True |
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262 if action == 'modify': |
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263 baton = editor.open_file(path, parent, base_revision, pool) |
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264 elif action == 'add': |
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265 try: |
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266 baton = editor.add_file(path, parent, None, -1, pool) |
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267 except (core.SubversionException, TypeError), e: |
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268 print e.message |
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269 raise |
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270 elif action == 'delete': |
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271 baton = editor.delete_entry(path, base_revision, parent, pool) |
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272 compute_delta = False |
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273 |
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274 if compute_delta: |
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275 handler, wh_baton = editor.apply_textdelta(baton, None, |
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276 self.pool) |
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277 |
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278 txdelta_stream = delta.svn_txdelta( |
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279 cStringIO.StringIO(base_text), cStringIO.StringIO(new_text), |
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280 self.pool) |
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281 delta.svn_txdelta_send_txstream(txdelta_stream, handler, |
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282 wh_baton, pool) |
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283 |
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284 delta.path_driver(editor, edit_baton, base_revision, paths, driver_cb, |
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285 self.pool) |
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286 editor.close_edit(edit_baton, self.pool) |
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287 |
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288 def get_replay(self, revision, editor, oldest_rev_i_have=0): |
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289 # this method has a tendency to chew through RAM if you don't re-init |
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290 self.init_ra_and_client() |
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291 e_ptr, e_baton = delta.make_editor(editor) |
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292 try: |
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293 ra.replay(self.ra, revision, oldest_rev_i_have, True, e_ptr, |
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294 e_baton, self.pool) |
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295 except core.SubversionException, e: |
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296 # can I depend on this number being constant? |
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297 if (e.message == "Server doesn't support the replay command" |
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298 or e.apr_err == 170003): |
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299 raise SubversionRepoCanNotReplay, ('This Subversion server ' |
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300 'is older than 1.4.0, and cannot satisfy replay requests.') |
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301 else: |
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302 raise |
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303 |
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304 def get_unified_diff(self, path, revision, other_path=None, other_rev=None, |
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305 deleted=True, ignore_type=False): |
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306 """Gets a unidiff of path at revision against revision-1. |
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307 """ |
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308 # works around an svn server keeping too many open files (observed |
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309 # in an svnserve from the 1.2 era) |
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310 self.init_ra_and_client() |
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311 |
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312 old_cwd = os.getcwd() |
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313 assert path[0] != '/' |
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314 url = self.svn_url + '/' + path |
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315 url2 = url |
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316 if other_path is not None: |
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317 url2 = self.svn_url + '/' + other_path |
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318 if other_rev is None: |
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319 other_rev = revision - 1 |
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320 tmpdir = tempfile.mkdtemp('svnwrap_temp') |
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321 # hot tip: the swig bridge doesn't like StringIO for these bad boys |
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322 out_path = os.path.join(tmpdir, 'diffout') |
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Initial import of hgsubversion into a public repository.
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323 error_path = os.path.join(tmpdir, 'differr') |
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324 out = open(out_path, 'w') |
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Initial import of hgsubversion into a public repository.
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325 err = open(error_path, 'w') |
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326 rev_old = core.svn_opt_revision_t() |
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327 rev_old.kind = core.svn_opt_revision_number |
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328 rev_old.value.number = other_rev |
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329 rev_new = core.svn_opt_revision_t() |
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330 rev_new.kind = core.svn_opt_revision_number |
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331 rev_new.value.number = revision |
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332 client.diff3([], url2, rev_old, url, rev_new, True, True, |
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333 deleted, ignore_type, 'UTF-8', out, err, |
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334 self.client_context, self.pool) |
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335 out.close() |
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336 err.close() |
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337 assert len(open(error_path).read()) == 0 |
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338 diff = open(out_path).read() |
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339 os.chdir(old_cwd) |
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340 shutil.rmtree(tmpdir) |
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341 return diff |
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342 |
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343 def get_file(self, path, revision): |
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344 out = cStringIO.StringIO() |
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345 tmpdir = tempfile.mkdtemp('svnwrap_temp') |
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346 # hot tip: the swig bridge doesn't like StringIO for these bad boys |
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347 out_path = os.path.join(tmpdir, 'diffout') |
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348 out = open(out_path, 'w') |
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349 ra.get_file(self.ra, path,revision, out , None) |
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350 out.close() |
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351 x = open(out_path).read() |
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352 shutil.rmtree(tmpdir) |
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353 return x |
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354 |
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355 def proplist(self, path, revision, recurse=False): |
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356 rev = core.svn_opt_revision_t() |
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357 rev.kind = core.svn_opt_revision_number |
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358 rev.value.number = revision |
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359 if path[-1] == '/': |
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360 path = path[:-1] |
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361 if path[0] == '/': |
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362 path = path[1:] |
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363 pl = dict(client.proplist2(self.svn_url+'/'+path, rev, rev, True, |
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364 self.client_context, self.pool)) |
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365 pl2 = {} |
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366 for key, value in pl.iteritems(): |
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367 pl2[key[len(self.svn_url)+1:]] = value |
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368 return pl2 |
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369 |
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370 def fetch_all_files_to_dir(self, path, revision, checkout_path): |
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371 rev = core.svn_opt_revision_t() |
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372 rev.kind = core.svn_opt_revision_number |
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373 rev.value.number = revision |
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Initial import of hgsubversion into a public repository.
Augie Fackler <durin42@gmail.com>
parents:
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374 client.export3(self.svn_url+'/'+path, checkout_path, rev, |
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Initial import of hgsubversion into a public repository.
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parents:
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375 rev, True, True, True, 'LF', # should be 'CRLF' on win32 |
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Initial import of hgsubversion into a public repository.
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parents:
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376 self.client_context, self.pool) |
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Initial import of hgsubversion into a public repository.
Augie Fackler <durin42@gmail.com>
parents:
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377 |
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378 class SubversionRepoCanNotReplay(Exception): |
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379 """Exception raised when the svn server is too old to have replay. |
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parents:
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380 """ |