Mercurial > hg
annotate mercurial/error.py @ 43679:7cf332318f62
encoding: make getcols() raise exception explicitly
This helps pytype.
File "mercurial/encoding.py", line 329, in getcols: bad option in return
type [bad-return-type]
Expected: bytes
Actually returned: None
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sat, 16 Nov 2019 15:43:21 +0900 |
parents | 9f70512ae2cf |
children | e429e7c801b2 |
rev | line source |
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1 # error.py - Mercurial exceptions |
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2 # |
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3 # Copyright 2005-2008 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
7633 | 7 |
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8 """Mercurial exceptions. |
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9 |
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10 This allows us to catch exceptions at higher levels without forcing |
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11 imports. |
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12 """ |
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13 |
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14 from __future__ import absolute_import |
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15 |
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16 # Do not import anything but pycompat here, please |
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17 from . import pycompat |
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18 |
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19 |
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20 def _tobytes(exc): |
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21 """Byte-stringify exception in the same way as BaseException_str()""" |
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22 if not exc.args: |
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23 return b'' |
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24 if len(exc.args) == 1: |
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25 return pycompat.bytestr(exc.args[0]) |
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26 return b'(%s)' % b', '.join(b"'%s'" % pycompat.bytestr(a) for a in exc.args) |
7633 | 27 |
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28 |
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29 class Hint(object): |
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30 """Mix-in to provide a hint of an error |
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31 |
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32 This should come first in the inheritance list to consume a hint and |
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33 pass remaining arguments to the exception class. |
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34 """ |
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35 |
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36 def __init__(self, *args, **kw): |
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37 self.hint = kw.pop('hint', None) |
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38 super(Hint, self).__init__(*args, **kw) |
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39 |
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40 |
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41 class StorageError(Hint, Exception): |
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42 """Raised when an error occurs in a storage layer. |
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43 |
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44 Usually subclassed by a storage-specific exception. |
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45 """ |
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46 |
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47 __bytes__ = _tobytes |
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48 |
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49 |
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50 class RevlogError(StorageError): |
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51 __bytes__ = _tobytes |
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53 |
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54 class SidedataHashError(RevlogError): |
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55 def __init__(self, key, expected, got): |
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56 self.sidedatakey = key |
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57 self.expecteddigest = expected |
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58 self.actualdigest = got |
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59 |
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60 |
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61 class FilteredIndexError(IndexError): |
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62 __bytes__ = _tobytes |
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63 |
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64 |
7633 | 65 class LookupError(RevlogError, KeyError): |
66 def __init__(self, name, index, message): | |
67 self.name = name | |
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68 self.index = index |
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69 # this can't be called 'message' because at least some installs of |
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70 # Python 2.6+ complain about the 'message' property being deprecated |
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71 self.lookupmessage = message |
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72 if isinstance(name, bytes) and len(name) == 20: |
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73 from .node import short |
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74 |
7633 | 75 name = short(name) |
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76 RevlogError.__init__(self, b'%s@%s: %s' % (index, name, message)) |
7633 | 77 |
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78 def __bytes__(self): |
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79 return RevlogError.__bytes__(self) |
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80 |
7633 | 81 def __str__(self): |
82 return RevlogError.__str__(self) | |
7636 | 83 |
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84 |
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85 class AmbiguousPrefixLookupError(LookupError): |
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86 pass |
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87 |
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88 |
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89 class FilteredLookupError(LookupError): |
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90 pass |
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91 |
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92 |
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93 class ManifestLookupError(LookupError): |
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94 pass |
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95 |
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96 |
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97 class CommandError(Exception): |
7636 | 98 """Exception raised on errors in parsing the command line.""" |
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99 |
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100 __bytes__ = _tobytes |
7637 | 101 |
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102 |
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103 class InterventionRequired(Hint, Exception): |
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104 """Exception raised when a command requires human intervention.""" |
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105 |
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106 __bytes__ = _tobytes |
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107 |
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108 |
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109 class Abort(Hint, Exception): |
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110 """Raised if a command needs to print an error and exit.""" |
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111 |
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112 __bytes__ = _tobytes |
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113 |
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114 if pycompat.ispy3: |
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115 |
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116 def __str__(self): |
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117 # the output would be unreadable if the message was translated, |
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118 # but do not replace it with encoding.strfromlocal(), which |
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119 # may raise another exception. |
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120 return pycompat.sysstr(self.__bytes__()) |
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121 |
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122 |
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123 class HookLoadError(Abort): |
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124 """raised when loading a hook fails, aborting an operation |
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125 |
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126 Exists to allow more specialized catching.""" |
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127 |
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128 |
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129 class HookAbort(Abort): |
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130 """raised when a validation hook fails, aborting an operation |
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131 |
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132 Exists to allow more specialized catching.""" |
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133 |
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134 |
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135 class ConfigError(Abort): |
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136 """Exception raised when parsing config files""" |
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137 |
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138 |
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139 class UpdateAbort(Abort): |
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140 """Raised when an update is aborted for destination issue""" |
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141 |
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142 |
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143 class MergeDestAbort(Abort): |
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144 """Raised when an update is aborted for destination issues""" |
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145 |
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146 |
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147 class NoMergeDestAbort(MergeDestAbort): |
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148 """Raised when an update is aborted because there is nothing to merge""" |
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149 |
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150 |
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151 class ManyMergeDestAbort(MergeDestAbort): |
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152 """Raised when an update is aborted because destination is ambiguous""" |
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153 |
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154 |
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155 class ResponseExpected(Abort): |
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156 """Raised when an EOF is received for a prompt""" |
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157 |
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158 def __init__(self): |
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159 from .i18n import _ |
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160 |
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161 Abort.__init__(self, _(b'response expected')) |
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162 |
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163 |
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164 class OutOfBandError(Hint, Exception): |
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165 """Exception raised when a remote repo reports failure""" |
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166 |
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167 __bytes__ = _tobytes |
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168 |
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169 |
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170 class ParseError(Hint, Exception): |
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171 """Raised when parsing config files and {rev,file}sets (msg[, pos])""" |
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172 |
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173 __bytes__ = _tobytes |
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174 |
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175 |
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176 class PatchError(Exception): |
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177 __bytes__ = _tobytes |
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178 |
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179 |
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180 class UnknownIdentifier(ParseError): |
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181 """Exception raised when a {rev,file}set references an unknown identifier""" |
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182 |
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183 def __init__(self, function, symbols): |
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184 from .i18n import _ |
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185 |
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186 ParseError.__init__(self, _(b"unknown identifier: %s") % function) |
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187 self.function = function |
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188 self.symbols = symbols |
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189 |
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190 |
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191 class RepoError(Hint, Exception): |
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192 __bytes__ = _tobytes |
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194 |
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195 class RepoLookupError(RepoError): |
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196 pass |
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197 |
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198 |
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199 class FilteredRepoLookupError(RepoLookupError): |
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200 pass |
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201 |
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202 |
7637 | 203 class CapabilityError(RepoError): |
204 pass | |
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206 |
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207 class RequirementError(RepoError): |
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208 """Exception raised if .hg/requires has an unknown entry.""" |
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209 |
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210 |
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211 class StdioError(IOError): |
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212 """Raised if I/O to stdout or stderr fails""" |
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213 |
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214 def __init__(self, err): |
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215 IOError.__init__(self, err.errno, err.strerror) |
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216 |
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217 # no __bytes__() because error message is derived from the standard IOError |
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218 |
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219 |
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220 class UnsupportedMergeRecords(Abort): |
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221 def __init__(self, recordtypes): |
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222 from .i18n import _ |
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223 |
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224 self.recordtypes = sorted(recordtypes) |
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225 s = b' '.join(self.recordtypes) |
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226 Abort.__init__( |
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227 self, |
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228 _(b'unsupported merge state records: %s') % s, |
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229 hint=_( |
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230 b'see https://mercurial-scm.org/wiki/MergeStateRecords for ' |
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231 b'more information' |
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232 ), |
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233 ) |
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234 |
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235 |
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236 class UnknownVersion(Abort): |
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237 """generic exception for aborting from an encounter with an unknown version |
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238 """ |
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239 |
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240 def __init__(self, msg, hint=None, version=None): |
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241 self.version = version |
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242 super(UnknownVersion, self).__init__(msg, hint=hint) |
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243 |
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244 |
7640 | 245 class LockError(IOError): |
246 def __init__(self, errno, strerror, filename, desc): | |
247 IOError.__init__(self, errno, strerror, filename) | |
248 self.desc = desc | |
249 | |
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250 # no __bytes__() because error message is derived from the standard IOError |
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251 |
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252 |
7640 | 253 class LockHeld(LockError): |
254 def __init__(self, errno, filename, desc, locker): | |
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255 LockError.__init__(self, errno, b'Lock held', filename, desc) |
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257 | |
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258 |
7640 | 259 class LockUnavailable(LockError): |
260 pass | |
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261 |
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262 |
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263 # LockError is for errors while acquiring the lock -- this is unrelated |
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264 class LockInheritanceContractViolation(RuntimeError): |
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265 __bytes__ = _tobytes |
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266 |
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267 |
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268 class ResponseError(Exception): |
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269 """Raised to print an error with part of output and exit.""" |
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270 |
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271 __bytes__ = _tobytes |
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272 |
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273 |
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274 class UnknownCommand(Exception): |
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275 """Exception raised if command is not in the command table.""" |
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276 |
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277 __bytes__ = _tobytes |
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278 |
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279 |
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280 class AmbiguousCommand(Exception): |
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281 """Exception raised if command shortcut matches more than one command.""" |
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282 |
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283 __bytes__ = _tobytes |
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284 |
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285 |
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286 # derived from KeyboardInterrupt to simplify some breakout code |
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287 class SignalInterrupt(KeyboardInterrupt): |
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288 """Exception raised on SIGTERM and SIGHUP.""" |
7646 | 289 |
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290 |
7646 | 291 class SignatureError(Exception): |
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292 __bytes__ = _tobytes |
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293 |
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294 |
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295 class PushRaced(RuntimeError): |
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296 """An exception raised during unbundling that indicate a push race""" |
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297 |
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298 __bytes__ = _tobytes |
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299 |
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300 |
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301 class ProgrammingError(Hint, RuntimeError): |
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302 """Raised if a mercurial (core or extension) developer made a mistake""" |
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303 |
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304 def __init__(self, msg, *args, **kwargs): |
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305 # On Python 3, turn the message back into a string since this is |
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306 # an internal-only error that won't be printed except in a |
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307 # stack traces. |
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308 msg = pycompat.sysstr(msg) |
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309 super(ProgrammingError, self).__init__(msg, *args, **kwargs) |
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310 |
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311 __bytes__ = _tobytes |
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313 |
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314 class WdirUnsupported(Exception): |
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315 """An exception which is raised when 'wdir()' is not supported""" |
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316 |
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317 __bytes__ = _tobytes |
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318 |
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319 |
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320 # bundle2 related errors |
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321 class BundleValueError(ValueError): |
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322 """error raised when bundle2 cannot be processed""" |
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323 |
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324 __bytes__ = _tobytes |
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325 |
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326 |
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327 class BundleUnknownFeatureError(BundleValueError): |
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328 def __init__(self, parttype=None, params=(), values=()): |
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329 self.parttype = parttype |
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330 self.params = params |
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331 self.values = values |
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332 if self.parttype is None: |
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333 msg = b'Stream Parameter' |
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334 else: |
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335 msg = parttype |
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336 entries = self.params |
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337 if self.params and self.values: |
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338 assert len(self.params) == len(self.values) |
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339 entries = [] |
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340 for idx, par in enumerate(self.params): |
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341 val = self.values[idx] |
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342 if val is None: |
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343 entries.append(val) |
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344 else: |
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345 entries.append(b"%s=%r" % (par, pycompat.maybebytestr(val))) |
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346 if entries: |
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347 msg = b'%s - %s' % (msg, b', '.join(entries)) |
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348 ValueError.__init__(self, msg) |
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349 |
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350 |
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351 class ReadOnlyPartError(RuntimeError): |
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352 """error raised when code tries to alter a part being generated""" |
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353 |
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354 __bytes__ = _tobytes |
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355 |
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356 |
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357 class PushkeyFailed(Abort): |
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358 """error raised when a pushkey part failed to update a value""" |
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359 |
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360 def __init__( |
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361 self, partid, namespace=None, key=None, new=None, old=None, ret=None |
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362 ): |
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363 self.partid = partid |
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364 self.namespace = namespace |
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365 self.key = key |
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366 self.new = new |
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367 self.old = old |
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368 self.ret = ret |
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369 # no i18n expected to be processed into a better message |
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370 Abort.__init__( |
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371 self, b'failed to update value for "%s/%s"' % (namespace, key) |
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372 ) |
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373 |
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374 |
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375 class CensoredNodeError(StorageError): |
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376 """error raised when content verification fails on a censored node |
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377 |
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378 Also contains the tombstone data substituted for the uncensored data. |
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379 """ |
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380 |
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381 def __init__(self, filename, node, tombstone): |
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382 from .node import short |
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383 |
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384 StorageError.__init__(self, b'%s:%s' % (filename, short(node))) |
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385 self.tombstone = tombstone |
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386 |
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387 |
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388 class CensoredBaseError(StorageError): |
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389 """error raised when a delta is rejected because its base is censored |
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390 |
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391 A delta based on a censored revision must be formed as single patch |
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392 operation which replaces the entire base with new content. This ensures |
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393 the delta may be applied by clones which have not censored the base. |
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394 """ |
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395 |
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396 |
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397 class InvalidBundleSpecification(Exception): |
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398 """error raised when a bundle specification is invalid. |
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399 |
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400 This is used for syntax errors as opposed to support errors. |
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401 """ |
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402 |
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403 __bytes__ = _tobytes |
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404 |
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405 |
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406 class UnsupportedBundleSpecification(Exception): |
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407 """error raised when a bundle specification is not supported.""" |
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408 |
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409 __bytes__ = _tobytes |
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410 |
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411 |
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412 class CorruptedState(Exception): |
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413 """error raised when a command is not able to read its state from file""" |
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414 |
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415 __bytes__ = _tobytes |
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416 |
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417 |
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418 class PeerTransportError(Abort): |
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419 """Transport-level I/O error when communicating with a peer repo.""" |
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420 |
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421 |
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422 class InMemoryMergeConflictsError(Exception): |
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423 """Exception raised when merge conflicts arose during an in-memory merge.""" |
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424 |
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425 __bytes__ = _tobytes |
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426 |
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427 |
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428 class WireprotoCommandError(Exception): |
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429 """Represents an error during execution of a wire protocol command. |
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430 |
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431 Should only be thrown by wire protocol version 2 commands. |
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432 |
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433 The error is a formatter string and an optional iterable of arguments. |
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434 """ |
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435 |
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436 def __init__(self, message, args=None): |
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437 self.message = message |
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438 self.messageargs = args |