Mercurial > hg
annotate hgext/convert/common.py @ 5497:f0a3918abd42
convert: fail if an external required tool is not found
author | Patrick Mezard <pmezard@gmail.com> |
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date | Tue, 30 Oct 2007 22:14:15 +0100 |
parents | 71e7c86adcb7 |
children | 11d7908a3ea8 |
rev | line source |
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1 # common code for the convert extension |
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2 import base64 |
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3 import cPickle as pickle |
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4 from mercurial import util |
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5 |
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6 def encodeargs(args): |
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7 def encodearg(s): |
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8 lines = base64.encodestring(s) |
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9 lines = [l.splitlines()[0] for l in lines] |
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10 return ''.join(lines) |
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11 |
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12 s = pickle.dumps(args) |
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13 return encodearg(s) |
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14 |
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15 def decodeargs(s): |
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16 s = base64.decodestring(s) |
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17 return pickle.loads(s) |
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18 |
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19 def checktool(exe, name=None): |
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20 name = name or exe |
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21 if not util.find_exe(exe): |
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22 raise util.Abort('cannot find required "%s" tool' % name) |
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23 |
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24 class NoRepo(Exception): pass |
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25 |
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26 SKIPREV = 'SKIP' |
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27 |
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28 class commit(object): |
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29 def __init__(self, author, date, desc, parents, branch=None, rev=None, |
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30 extra={}): |
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31 self.author = author |
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32 self.date = date |
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33 self.desc = desc |
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34 self.parents = parents |
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35 self.branch = branch |
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36 self.rev = rev |
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37 self.extra = extra |
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38 |
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39 class converter_source(object): |
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40 """Conversion source interface""" |
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41 |
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42 def __init__(self, ui, path, rev=None): |
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43 """Initialize conversion source (or raise NoRepo("message") |
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44 exception if path is not a valid repository)""" |
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45 self.ui = ui |
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46 self.path = path |
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47 self.rev = rev |
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48 |
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49 self.encoding = 'utf-8' |
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50 |
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51 def before(self): |
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52 pass |
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53 |
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54 def after(self): |
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55 pass |
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56 |
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57 def setrevmap(self, revmap, order): |
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58 """set the map of already-converted revisions |
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59 |
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60 order is a list with the keys from revmap in the order they |
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61 appear in the revision map file.""" |
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62 pass |
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63 |
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64 def getheads(self): |
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65 """Return a list of this repository's heads""" |
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66 raise NotImplementedError() |
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67 |
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68 def getfile(self, name, rev): |
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69 """Return file contents as a string""" |
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70 raise NotImplementedError() |
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71 |
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72 def getmode(self, name, rev): |
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73 """Return file mode, eg. '', 'x', or 'l'""" |
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74 raise NotImplementedError() |
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75 |
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76 def getchanges(self, version): |
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77 """Returns a tuple of (files, copies) |
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78 Files is a sorted list of (filename, id) tuples for all files changed |
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79 in version, where id is the source revision id of the file. |
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80 |
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81 copies is a dictionary of dest: source |
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82 """ |
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83 raise NotImplementedError() |
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84 |
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85 def getcommit(self, version): |
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86 """Return the commit object for version""" |
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87 raise NotImplementedError() |
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88 |
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89 def gettags(self): |
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90 """Return the tags as a dictionary of name: revision""" |
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91 raise NotImplementedError() |
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92 |
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93 def recode(self, s, encoding=None): |
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94 if not encoding: |
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95 encoding = self.encoding or 'utf-8' |
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96 |
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97 if isinstance(s, unicode): |
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98 return s.encode("utf-8") |
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99 try: |
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100 return s.decode(encoding).encode("utf-8") |
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101 except: |
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102 try: |
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103 return s.decode("latin-1").encode("utf-8") |
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104 except: |
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105 return s.decode(encoding, "replace").encode("utf-8") |
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106 |
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107 def getchangedfiles(self, rev, i): |
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108 """Return the files changed by rev compared to parent[i]. |
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109 |
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110 i is an index selecting one of the parents of rev. The return |
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111 value should be the list of files that are different in rev and |
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112 this parent. |
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113 |
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114 If rev has no parents, i is None. |
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115 |
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116 This function is only needed to support --filemap |
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117 """ |
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118 raise NotImplementedError() |
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119 |
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120 class converter_sink(object): |
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121 """Conversion sink (target) interface""" |
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122 |
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123 def __init__(self, ui, path): |
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124 """Initialize conversion sink (or raise NoRepo("message") |
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125 exception if path is not a valid repository) |
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126 |
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127 created is a list of paths to remove if a fatal error occurs |
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128 later""" |
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129 self.ui = ui |
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130 self.path = path |
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131 self.created = [] |
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132 |
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133 def getheads(self): |
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134 """Return a list of this repository's heads""" |
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135 raise NotImplementedError() |
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136 |
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137 def revmapfile(self): |
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138 """Path to a file that will contain lines |
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139 source_rev_id sink_rev_id |
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140 mapping equivalent revision identifiers for each system.""" |
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141 raise NotImplementedError() |
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142 |
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143 def authorfile(self): |
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144 """Path to a file that will contain lines |
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145 srcauthor=dstauthor |
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146 mapping equivalent authors identifiers for each system.""" |
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147 return None |
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148 |
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149 def putfile(self, f, e, data): |
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150 """Put file for next putcommit(). |
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151 f: path to file |
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152 e: '', 'x', or 'l' (regular file, executable, or symlink) |
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153 data: file contents""" |
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154 raise NotImplementedError() |
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155 |
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156 def delfile(self, f): |
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157 """Delete file for next putcommit(). |
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158 f: path to file""" |
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159 raise NotImplementedError() |
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160 |
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161 def putcommit(self, files, parents, commit): |
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162 """Create a revision with all changed files listed in 'files' |
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163 and having listed parents. 'commit' is a commit object containing |
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164 at a minimum the author, date, and message for this changeset. |
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165 Called after putfile() and delfile() calls. Note that the sink |
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166 repository is not told to update itself to a particular revision |
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167 (or even what that revision would be) before it receives the |
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168 file data.""" |
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169 raise NotImplementedError() |
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170 |
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171 def puttags(self, tags): |
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172 """Put tags into sink. |
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173 tags: {tagname: sink_rev_id, ...}""" |
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174 raise NotImplementedError() |
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175 |
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176 def setbranch(self, branch, pbranch, parents): |
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177 """Set the current branch name. Called before the first putfile |
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178 on the branch. |
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179 branch: branch name for subsequent commits |
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180 pbranch: branch name of parent commit |
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181 parents: destination revisions of parent""" |
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182 pass |
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183 |
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184 def setfilemapmode(self, active): |
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185 """Tell the destination that we're using a filemap |
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186 |
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187 Some converter_sources (svn in particular) can claim that a file |
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188 was changed in a revision, even if there was no change. This method |
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189 tells the destination that we're using a filemap and that it should |
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190 filter empty revisions. |
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191 """ |
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192 pass |