Mercurial > hg
annotate hgext/fix.py @ 47797:e69c82bf3a01 stable
fix: use obsolete.isenabled() to check for experimental.allowdivergence
Now that obsolete.isenabled() can also check if divergence is allowed, let's
use it for consistency. Other experimental.evolution options are already
checked via this function.
Differential Revision: https://phab.mercurial-scm.org/D11222
author | Anton Shestakov <av6@dwimlabs.net> |
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date | Wed, 28 Jul 2021 13:47:21 +0300 |
parents | 66ad7e32011f |
children | 155a2ec8a9dc 86a60679cf61 |
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1 # fix - rewrite file content in changesets and working copy |
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2 # |
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3 # Copyright 2018 Google LLC. |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 """rewrite file content in changesets or working copy (EXPERIMENTAL) |
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8 |
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9 Provides a command that runs configured tools on the contents of modified files, |
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10 writing back any fixes to the working copy or replacing changesets. |
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11 |
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12 Here is an example configuration that causes :hg:`fix` to apply automatic |
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13 formatting fixes to modified lines in C++ code:: |
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14 |
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15 [fix] |
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16 clang-format:command=clang-format --assume-filename={rootpath} |
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17 clang-format:linerange=--lines={first}:{last} |
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18 clang-format:pattern=set:**.cpp or **.hpp |
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19 |
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20 The :command suboption forms the first part of the shell command that will be |
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21 used to fix a file. The content of the file is passed on standard input, and the |
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22 fixed file content is expected on standard output. Any output on standard error |
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23 will be displayed as a warning. If the exit status is not zero, the file will |
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24 not be affected. A placeholder warning is displayed if there is a non-zero exit |
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25 status but no standard error output. Some values may be substituted into the |
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26 command:: |
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27 |
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28 {rootpath} The path of the file being fixed, relative to the repo root |
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29 {basename} The name of the file being fixed, without the directory path |
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30 |
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31 If the :linerange suboption is set, the tool will only be run if there are |
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32 changed lines in a file. The value of this suboption is appended to the shell |
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33 command once for every range of changed lines in the file. Some values may be |
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34 substituted into the command:: |
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35 |
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36 {first} The 1-based line number of the first line in the modified range |
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37 {last} The 1-based line number of the last line in the modified range |
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38 |
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39 Deleted sections of a file will be ignored by :linerange, because there is no |
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40 corresponding line range in the version being fixed. |
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41 |
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42 By default, tools that set :linerange will only be executed if there is at least |
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43 one changed line range. This is meant to prevent accidents like running a code |
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44 formatter in such a way that it unexpectedly reformats the whole file. If such a |
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45 tool needs to operate on unchanged files, it should set the :skipclean suboption |
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46 to false. |
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47 |
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48 The :pattern suboption determines which files will be passed through each |
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49 configured tool. See :hg:`help patterns` for possible values. However, all |
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50 patterns are relative to the repo root, even if that text says they are relative |
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51 to the current working directory. If there are file arguments to :hg:`fix`, the |
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52 intersection of these patterns is used. |
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53 |
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54 There is also a configurable limit for the maximum size of file that will be |
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55 processed by :hg:`fix`:: |
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56 |
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57 [fix] |
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58 maxfilesize = 2MB |
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59 |
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60 Normally, execution of configured tools will continue after a failure (indicated |
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61 by a non-zero exit status). It can also be configured to abort after the first |
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62 such failure, so that no files will be affected if any tool fails. This abort |
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63 will also cause :hg:`fix` to exit with a non-zero status:: |
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64 |
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65 [fix] |
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66 failure = abort |
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67 |
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68 When multiple tools are configured to affect a file, they execute in an order |
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69 defined by the :priority suboption. The priority suboption has a default value |
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70 of zero for each tool. Tools are executed in order of descending priority. The |
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71 execution order of tools with equal priority is unspecified. For example, you |
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72 could use the 'sort' and 'head' utilities to keep only the 10 smallest numbers |
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73 in a text file by ensuring that 'sort' runs before 'head':: |
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74 |
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75 [fix] |
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76 sort:command = sort -n |
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77 head:command = head -n 10 |
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78 sort:pattern = numbers.txt |
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79 head:pattern = numbers.txt |
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80 sort:priority = 2 |
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81 head:priority = 1 |
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82 |
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83 To account for changes made by each tool, the line numbers used for incremental |
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84 formatting are recomputed before executing the next tool. So, each tool may see |
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85 different values for the arguments added by the :linerange suboption. |
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86 |
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87 Each fixer tool is allowed to return some metadata in addition to the fixed file |
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88 content. The metadata must be placed before the file content on stdout, |
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89 separated from the file content by a zero byte. The metadata is parsed as a JSON |
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90 value (so, it should be UTF-8 encoded and contain no zero bytes). A fixer tool |
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91 is expected to produce this metadata encoding if and only if the :metadata |
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92 suboption is true:: |
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93 |
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94 [fix] |
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95 tool:command = tool --prepend-json-metadata |
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96 tool:metadata = true |
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97 |
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98 The metadata values are passed to hooks, which can be used to print summaries or |
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99 perform other post-fixing work. The supported hooks are:: |
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100 |
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101 "postfixfile" |
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102 Run once for each file in each revision where any fixer tools made changes |
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103 to the file content. Provides "$HG_REV" and "$HG_PATH" to identify the file, |
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104 and "$HG_METADATA" with a map of fixer names to metadata values from fixer |
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105 tools that affected the file. Fixer tools that didn't affect the file have a |
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106 value of None. Only fixer tools that executed are present in the metadata. |
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107 |
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108 "postfix" |
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109 Run once after all files and revisions have been handled. Provides |
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110 "$HG_REPLACEMENTS" with information about what revisions were created and |
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111 made obsolete. Provides a boolean "$HG_WDIRWRITTEN" to indicate whether any |
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112 files in the working copy were updated. Provides a list "$HG_METADATA" |
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113 mapping fixer tool names to lists of metadata values returned from |
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114 executions that modified a file. This aggregates the same metadata |
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115 previously passed to the "postfixfile" hook. |
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116 |
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117 Fixer tools are run in the repository's root directory. This allows them to read |
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118 configuration files from the working copy, or even write to the working copy. |
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119 The working copy is not updated to match the revision being fixed. In fact, |
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120 several revisions may be fixed in parallel. Writes to the working copy are not |
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121 amended into the revision being fixed; fixer tools should always write fixed |
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122 file content back to stdout as documented above. |
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123 """ |
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124 |
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125 from __future__ import absolute_import |
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126 |
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127 import collections |
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128 import itertools |
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129 import os |
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130 import re |
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131 import subprocess |
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132 |
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133 from mercurial.i18n import _ |
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135 nullid, |
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137 wdirrev, | |
138 ) | |
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139 |
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140 from mercurial.utils import procutil |
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141 |
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142 from mercurial import ( |
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143 cmdutil, |
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144 context, |
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145 copies, |
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146 error, |
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147 match as matchmod, |
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148 mdiff, |
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149 merge, |
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150 mergestate as mergestatemod, |
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151 obsolete, |
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152 pycompat, |
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153 registrar, |
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154 rewriteutil, |
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155 scmutil, |
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156 util, |
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157 worker, |
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158 ) |
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159 |
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160 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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161 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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162 # be specifying the version(s) of Mercurial they are tested with, or |
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163 # leave the attribute unspecified. |
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164 testedwith = b'ships-with-hg-core' |
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165 |
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166 cmdtable = {} |
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167 command = registrar.command(cmdtable) |
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168 |
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169 configtable = {} |
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170 configitem = registrar.configitem(configtable) |
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171 |
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172 # Register the suboptions allowed for each configured fixer, and default values. |
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173 FIXER_ATTRS = { |
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174 b'command': None, |
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175 b'linerange': None, |
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176 b'pattern': None, |
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177 b'priority': 0, |
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178 b'metadata': False, |
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179 b'skipclean': True, |
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180 b'enabled': True, |
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181 } |
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182 |
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183 for key, default in FIXER_ATTRS.items(): |
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184 configitem(b'fix', b'.*:%s$' % key, default=default, generic=True) |
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185 |
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186 # A good default size allows most source code files to be fixed, but avoids |
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187 # letting fixer tools choke on huge inputs, which could be surprising to the |
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188 # user. |
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189 configitem(b'fix', b'maxfilesize', default=b'2MB') |
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190 |
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191 # Allow fix commands to exit non-zero if an executed fixer tool exits non-zero. |
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192 # This helps users do shell scripts that stop when a fixer tool signals a |
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193 # problem. |
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194 configitem(b'fix', b'failure', default=b'continue') |
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195 |
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196 |
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197 def checktoolfailureaction(ui, message, hint=None): |
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198 """Abort with 'message' if fix.failure=abort""" |
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199 action = ui.config(b'fix', b'failure') |
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200 if action not in (b'continue', b'abort'): |
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201 raise error.Abort( |
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202 _(b'unknown fix.failure action: %s') % (action,), |
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203 hint=_(b'use "continue" or "abort"'), |
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204 ) |
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205 if action == b'abort': |
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206 raise error.Abort(message, hint=hint) |
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207 |
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208 |
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209 allopt = (b'', b'all', False, _(b'fix all non-public non-obsolete revisions')) |
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210 baseopt = ( |
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211 b'', |
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212 b'base', |
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213 [], |
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214 _( |
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215 b'revisions to diff against (overrides automatic ' |
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216 b'selection, and applies to every revision being ' |
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217 b'fixed)' |
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218 ), |
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219 _(b'REV'), |
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220 ) |
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221 revopt = (b'r', b'rev', [], _(b'revisions to fix (ADVANCED)'), _(b'REV')) |
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222 sourceopt = ( |
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223 b's', |
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224 b'source', |
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225 [], |
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226 _(b'fix the specified revisions and their descendants'), |
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227 _(b'REV'), |
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228 ) |
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229 wdiropt = (b'w', b'working-dir', False, _(b'fix the working directory')) |
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230 wholeopt = (b'', b'whole', False, _(b'always fix every line of a file')) |
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231 usage = _(b'[OPTION]... [FILE]...') |
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232 |
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233 |
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234 @command( |
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235 b'fix', |
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236 [allopt, baseopt, revopt, sourceopt, wdiropt, wholeopt], |
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237 usage, |
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238 helpcategory=command.CATEGORY_FILE_CONTENTS, |
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239 ) |
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240 def fix(ui, repo, *pats, **opts): |
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241 """rewrite file content in changesets or working directory |
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242 |
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243 Runs any configured tools to fix the content of files. Only affects files |
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244 with changes, unless file arguments are provided. Only affects changed lines |
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245 of files, unless the --whole flag is used. Some tools may always affect the |
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246 whole file regardless of --whole. |
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247 |
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248 If --working-dir is used, files with uncommitted changes in the working copy |
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249 will be fixed. Note that no backup are made. |
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250 |
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251 If revisions are specified with --source, those revisions and their |
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252 descendants will be checked, and they may be replaced with new revisions |
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253 that have fixed file content. By automatically including the descendants, |
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254 no merging, rebasing, or evolution will be required. If an ancestor of the |
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255 working copy is included, then the working copy itself will also be fixed, |
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256 and the working copy will be updated to the fixed parent. |
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257 |
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258 When determining what lines of each file to fix at each revision, the whole |
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259 set of revisions being fixed is considered, so that fixes to earlier |
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260 revisions are not forgotten in later ones. The --base flag can be used to |
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261 override this default behavior, though it is not usually desirable to do so. |
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262 """ |
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263 opts = pycompat.byteskwargs(opts) |
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264 cmdutil.check_at_most_one_arg(opts, b'all', b'source', b'rev') |
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265 cmdutil.check_incompatible_arguments( |
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266 opts, b'working_dir', [b'all', b'source'] |
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267 ) |
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268 |
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269 with repo.wlock(), repo.lock(), repo.transaction(b'fix'): |
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270 revstofix = getrevstofix(ui, repo, opts) |
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271 basectxs = getbasectxs(repo, opts, revstofix) |
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272 workqueue, numitems = getworkqueue( |
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273 ui, repo, pats, opts, revstofix, basectxs |
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274 ) |
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275 basepaths = getbasepaths(repo, opts, workqueue, basectxs) |
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276 fixers = getfixers(ui) |
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277 |
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278 # Rather than letting each worker independently fetch the files |
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279 # (which also would add complications for shared/keepalive |
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280 # connections), prefetch them all first. |
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281 _prefetchfiles(repo, workqueue, basepaths) |
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282 |
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283 # There are no data dependencies between the workers fixing each file |
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284 # revision, so we can use all available parallelism. |
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285 def getfixes(items): |
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286 for rev, path in items: |
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287 ctx = repo[rev] |
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288 olddata = ctx[path].data() |
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289 metadata, newdata = fixfile( |
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290 ui, repo, opts, fixers, ctx, path, basepaths, basectxs[rev] |
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291 ) |
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292 # Don't waste memory/time passing unchanged content back, but |
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293 # produce one result per item either way. |
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294 yield ( |
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295 rev, |
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296 path, |
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297 metadata, |
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298 newdata if newdata != olddata else None, |
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299 ) |
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300 |
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301 results = worker.worker( |
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302 ui, 1.0, getfixes, tuple(), workqueue, threadsafe=False |
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303 ) |
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304 |
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305 # We have to hold on to the data for each successor revision in memory |
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306 # until all its parents are committed. We ensure this by committing and |
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307 # freeing memory for the revisions in some topological order. This |
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308 # leaves a little bit of memory efficiency on the table, but also makes |
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309 # the tests deterministic. It might also be considered a feature since |
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310 # it makes the results more easily reproducible. |
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311 filedata = collections.defaultdict(dict) |
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312 aggregatemetadata = collections.defaultdict(list) |
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313 replacements = {} |
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314 wdirwritten = False |
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315 commitorder = sorted(revstofix, reverse=True) |
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316 with ui.makeprogress( |
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317 topic=_(b'fixing'), unit=_(b'files'), total=sum(numitems.values()) |
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318 ) as progress: |
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319 for rev, path, filerevmetadata, newdata in results: |
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320 progress.increment(item=path) |
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321 for fixername, fixermetadata in filerevmetadata.items(): |
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322 aggregatemetadata[fixername].append(fixermetadata) |
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323 if newdata is not None: |
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324 filedata[rev][path] = newdata |
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325 hookargs = { |
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326 b'rev': rev, |
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327 b'path': path, |
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328 b'metadata': filerevmetadata, |
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329 } |
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330 repo.hook( |
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331 b'postfixfile', |
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332 throw=False, |
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333 **pycompat.strkwargs(hookargs) |
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334 ) |
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335 numitems[rev] -= 1 |
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336 # Apply the fixes for this and any other revisions that are |
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337 # ready and sitting at the front of the queue. Using a loop here |
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338 # prevents the queue from being blocked by the first revision to |
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339 # be ready out of order. |
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340 while commitorder and not numitems[commitorder[-1]]: |
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341 rev = commitorder.pop() |
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342 ctx = repo[rev] |
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343 if rev == wdirrev: |
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344 writeworkingdir(repo, ctx, filedata[rev], replacements) |
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345 wdirwritten = bool(filedata[rev]) |
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346 else: |
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347 replacerev(ui, repo, ctx, filedata[rev], replacements) |
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348 del filedata[rev] |
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349 |
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350 cleanup(repo, replacements, wdirwritten) |
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351 hookargs = { |
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352 b'replacements': replacements, |
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353 b'wdirwritten': wdirwritten, |
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354 b'metadata': aggregatemetadata, |
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355 } |
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356 repo.hook(b'postfix', throw=True, **pycompat.strkwargs(hookargs)) |
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357 |
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358 |
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359 def cleanup(repo, replacements, wdirwritten): |
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360 """Calls scmutil.cleanupnodes() with the given replacements. |
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361 |
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362 "replacements" is a dict from nodeid to nodeid, with one key and one value |
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363 for every revision that was affected by fixing. This is slightly different |
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364 from cleanupnodes(). |
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365 |
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366 "wdirwritten" is a bool which tells whether the working copy was affected by |
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367 fixing, since it has no entry in "replacements". |
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368 |
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369 Useful as a hook point for extending "hg fix" with output summarizing the |
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370 effects of the command, though we choose not to output anything here. |
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371 """ |
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372 replacements = { |
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373 prec: [succ] for prec, succ in pycompat.iteritems(replacements) |
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374 } |
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375 scmutil.cleanupnodes(repo, replacements, b'fix', fixphase=True) |
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376 |
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377 |
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378 def getworkqueue(ui, repo, pats, opts, revstofix, basectxs): |
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379 """Constructs the list of files to be fixed at specific revisions |
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380 |
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381 It is up to the caller how to consume the work items, and the only |
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382 dependence between them is that replacement revisions must be committed in |
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383 topological order. Each work item represents a file in the working copy or |
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384 in some revision that should be fixed and written back to the working copy |
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385 or into a replacement revision. |
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386 |
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387 Work items for the same revision are grouped together, so that a worker |
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388 pool starting with the first N items in parallel is likely to finish the |
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389 first revision's work before other revisions. This can allow us to write |
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390 the result to disk and reduce memory footprint. At time of writing, the |
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391 partition strategy in worker.py seems favorable to this. We also sort the |
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392 items by ascending revision number to match the order in which we commit |
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393 the fixes later. |
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394 """ |
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395 workqueue = [] |
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396 numitems = collections.defaultdict(int) |
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397 maxfilesize = ui.configbytes(b'fix', b'maxfilesize') |
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398 for rev in sorted(revstofix): |
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399 fixctx = repo[rev] |
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400 match = scmutil.match(fixctx, pats, opts) |
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401 for path in sorted( |
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402 pathstofix(ui, repo, pats, opts, match, basectxs[rev], fixctx) |
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403 ): |
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404 fctx = fixctx[path] |
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405 if fctx.islink(): |
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406 continue |
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407 if fctx.size() > maxfilesize: |
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408 ui.warn( |
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409 _(b'ignoring file larger than %s: %s\n') |
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410 % (util.bytecount(maxfilesize), path) |
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411 ) |
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412 continue |
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413 workqueue.append((rev, path)) |
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414 numitems[rev] += 1 |
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415 return workqueue, numitems |
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416 |
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417 |
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418 def getrevstofix(ui, repo, opts): |
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419 """Returns the set of revision numbers that should be fixed""" |
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420 if opts[b'all']: |
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421 revs = repo.revs(b'(not public() and not obsolete()) or wdir()') |
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422 elif opts[b'source']: |
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423 source_revs = scmutil.revrange(repo, opts[b'source']) |
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424 revs = set(repo.revs(b'(%ld::) - obsolete()', source_revs)) |
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425 if wdirrev in source_revs: |
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426 # `wdir()::` is currently empty, so manually add wdir |
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427 revs.add(wdirrev) |
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428 if repo[b'.'].rev() in revs: |
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429 revs.add(wdirrev) |
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430 else: |
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431 revs = set(scmutil.revrange(repo, opts[b'rev'])) |
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432 if opts.get(b'working_dir'): |
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433 revs.add(wdirrev) |
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434 for rev in revs: |
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435 checkfixablectx(ui, repo, repo[rev]) |
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436 # Allow fixing only wdir() even if there's an unfinished operation |
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437 if not (len(revs) == 1 and wdirrev in revs): |
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438 cmdutil.checkunfinished(repo) |
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439 rewriteutil.precheck(repo, revs, b'fix') |
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440 if ( |
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441 wdirrev in revs |
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442 and mergestatemod.mergestate.read(repo).unresolvedcount() |
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443 ): |
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444 raise error.Abort(b'unresolved conflicts', hint=b"use 'hg resolve'") |
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445 if not revs: |
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446 raise error.Abort( |
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447 b'no changesets specified', hint=b'use --source or --working-dir' |
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448 ) |
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449 return revs |
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450 |
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451 |
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452 def checkfixablectx(ui, repo, ctx): |
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453 """Aborts if the revision shouldn't be replaced with a fixed one.""" |
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454 if ctx.obsolete(): |
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455 # It would be better to actually check if the revision has a successor. |
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456 if not obsolete.isenabled(repo, obsolete.allowdivergenceopt): |
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457 raise error.Abort( |
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458 b'fixing obsolete revision could cause divergence' |
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459 ) |
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460 |
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461 |
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462 def pathstofix(ui, repo, pats, opts, match, basectxs, fixctx): |
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463 """Returns the set of files that should be fixed in a context |
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464 |
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465 The result depends on the base contexts; we include any file that has |
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466 changed relative to any of the base contexts. Base contexts should be |
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467 ancestors of the context being fixed. |
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468 """ |
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469 files = set() |
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470 for basectx in basectxs: |
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471 stat = basectx.status( |
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472 fixctx, match=match, listclean=bool(pats), listunknown=bool(pats) |
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473 ) |
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474 files.update( |
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475 set( |
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476 itertools.chain( |
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477 stat.added, stat.modified, stat.clean, stat.unknown |
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478 ) |
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479 ) |
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480 ) |
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481 return files |
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482 |
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483 |
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484 def lineranges(opts, path, basepaths, basectxs, fixctx, content2): |
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485 """Returns the set of line ranges that should be fixed in a file |
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486 |
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487 Of the form [(10, 20), (30, 40)]. |
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488 |
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489 This depends on the given base contexts; we must consider lines that have |
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490 changed versus any of the base contexts, and whether the file has been |
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491 renamed versus any of them. |
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492 |
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493 Another way to understand this is that we exclude line ranges that are |
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494 common to the file in all base contexts. |
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495 """ |
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496 if opts.get(b'whole'): |
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497 # Return a range containing all lines. Rely on the diff implementation's |
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498 # idea of how many lines are in the file, instead of reimplementing it. |
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499 return difflineranges(b'', content2) |
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500 |
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501 rangeslist = [] |
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502 for basectx in basectxs: |
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503 basepath = basepaths.get((basectx.rev(), fixctx.rev(), path), path) |
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504 |
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505 if basepath in basectx: |
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506 content1 = basectx[basepath].data() |
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507 else: |
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508 content1 = b'' |
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509 rangeslist.extend(difflineranges(content1, content2)) |
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510 return unionranges(rangeslist) |
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511 |
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512 |
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513 def getbasepaths(repo, opts, workqueue, basectxs): |
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514 if opts.get(b'whole'): |
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515 # Base paths will never be fetched for line range determination. |
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516 return {} |
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517 |
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518 basepaths = {} |
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519 for rev, path in workqueue: |
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520 fixctx = repo[rev] |
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521 for basectx in basectxs[rev]: |
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522 basepath = copies.pathcopies(basectx, fixctx).get(path, path) |
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523 if basepath in basectx: |
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524 basepaths[(basectx.rev(), fixctx.rev(), path)] = basepath |
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525 return basepaths |
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526 |
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527 |
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528 def unionranges(rangeslist): |
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529 """Return the union of some closed intervals |
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530 |
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531 >>> unionranges([]) |
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532 [] |
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533 >>> unionranges([(1, 100)]) |
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534 [(1, 100)] |
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535 >>> unionranges([(1, 100), (1, 100)]) |
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536 [(1, 100)] |
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537 >>> unionranges([(1, 100), (2, 100)]) |
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538 [(1, 100)] |
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539 >>> unionranges([(1, 99), (1, 100)]) |
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540 [(1, 100)] |
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541 >>> unionranges([(1, 100), (40, 60)]) |
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542 [(1, 100)] |
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543 >>> unionranges([(1, 49), (50, 100)]) |
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544 [(1, 100)] |
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545 >>> unionranges([(1, 48), (50, 100)]) |
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546 [(1, 48), (50, 100)] |
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547 >>> unionranges([(1, 2), (3, 4), (5, 6)]) |
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548 [(1, 6)] |
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549 """ |
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550 rangeslist = sorted(set(rangeslist)) |
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551 unioned = [] |
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552 if rangeslist: |
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553 unioned, rangeslist = [rangeslist[0]], rangeslist[1:] |
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554 for a, b in rangeslist: |
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555 c, d = unioned[-1] |
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556 if a > d + 1: |
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557 unioned.append((a, b)) |
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558 else: |
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559 unioned[-1] = (c, max(b, d)) |
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560 return unioned |
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561 |
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562 |
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563 def difflineranges(content1, content2): |
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564 """Return list of line number ranges in content2 that differ from content1. |
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565 |
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566 Line numbers are 1-based. The numbers are the first and last line contained |
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567 in the range. Single-line ranges have the same line number for the first and |
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568 last line. Excludes any empty ranges that result from lines that are only |
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569 present in content1. Relies on mdiff's idea of where the line endings are in |
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570 the string. |
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571 |
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572 >>> from mercurial import pycompat |
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573 >>> lines = lambda s: b'\\n'.join([c for c in pycompat.iterbytestr(s)]) |
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574 >>> difflineranges2 = lambda a, b: difflineranges(lines(a), lines(b)) |
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575 >>> difflineranges2(b'', b'') |
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576 [] |
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577 >>> difflineranges2(b'a', b'') |
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578 [] |
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579 >>> difflineranges2(b'', b'A') |
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580 [(1, 1)] |
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581 >>> difflineranges2(b'a', b'a') |
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582 [] |
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583 >>> difflineranges2(b'a', b'A') |
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584 [(1, 1)] |
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585 >>> difflineranges2(b'ab', b'') |
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586 [] |
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587 >>> difflineranges2(b'', b'AB') |
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588 [(1, 2)] |
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589 >>> difflineranges2(b'abc', b'ac') |
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590 [] |
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591 >>> difflineranges2(b'ab', b'aCb') |
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592 [(2, 2)] |
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593 >>> difflineranges2(b'abc', b'aBc') |
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594 [(2, 2)] |
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595 >>> difflineranges2(b'ab', b'AB') |
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596 [(1, 2)] |
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597 >>> difflineranges2(b'abcde', b'aBcDe') |
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598 [(2, 2), (4, 4)] |
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599 >>> difflineranges2(b'abcde', b'aBCDe') |
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600 [(2, 4)] |
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601 """ |
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602 ranges = [] |
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603 for lines, kind in mdiff.allblocks(content1, content2): |
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604 firstline, lastline = lines[2:4] |
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605 if kind == b'!' and firstline != lastline: |
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606 ranges.append((firstline + 1, lastline)) |
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607 return ranges |
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608 |
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609 |
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610 def getbasectxs(repo, opts, revstofix): |
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611 """Returns a map of the base contexts for each revision |
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612 |
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613 The base contexts determine which lines are considered modified when we |
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614 attempt to fix just the modified lines in a file. It also determines which |
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615 files we attempt to fix, so it is important to compute this even when |
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616 --whole is used. |
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617 """ |
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618 # The --base flag overrides the usual logic, and we give every revision |
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619 # exactly the set of baserevs that the user specified. |
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620 if opts.get(b'base'): |
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621 baserevs = set(scmutil.revrange(repo, opts.get(b'base'))) |
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622 if not baserevs: |
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623 baserevs = {nullrev} |
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624 basectxs = {repo[rev] for rev in baserevs} |
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625 return {rev: basectxs for rev in revstofix} |
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626 |
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627 # Proceed in topological order so that we can easily determine each |
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628 # revision's baserevs by looking at its parents and their baserevs. |
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629 basectxs = collections.defaultdict(set) |
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630 for rev in sorted(revstofix): |
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631 ctx = repo[rev] |
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632 for pctx in ctx.parents(): |
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633 if pctx.rev() in basectxs: |
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634 basectxs[rev].update(basectxs[pctx.rev()]) |
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635 else: |
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636 basectxs[rev].add(pctx) |
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637 return basectxs |
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638 |
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639 |
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640 def _prefetchfiles(repo, workqueue, basepaths): |
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641 toprefetch = set() |
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642 |
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643 # Prefetch the files that will be fixed. |
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644 for rev, path in workqueue: |
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645 if rev == wdirrev: |
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646 continue |
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647 toprefetch.add((rev, path)) |
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648 |
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649 # Prefetch the base contents for lineranges(). |
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650 for (baserev, fixrev, path), basepath in basepaths.items(): |
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651 toprefetch.add((baserev, basepath)) |
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652 |
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653 if toprefetch: |
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654 scmutil.prefetchfiles( |
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655 repo, |
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656 [ |
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657 (rev, scmutil.matchfiles(repo, [path])) |
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658 for rev, path in toprefetch |
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659 ], |
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660 ) |
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661 |
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662 |
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663 def fixfile(ui, repo, opts, fixers, fixctx, path, basepaths, basectxs): |
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664 """Run any configured fixers that should affect the file in this context |
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665 |
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666 Returns the file content that results from applying the fixers in some order |
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667 starting with the file's content in the fixctx. Fixers that support line |
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668 ranges will affect lines that have changed relative to any of the basectxs |
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669 (i.e. they will only avoid lines that are common to all basectxs). |
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670 |
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671 A fixer tool's stdout will become the file's new content if and only if it |
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672 exits with code zero. The fixer tool's working directory is the repository's |
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673 root. |
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674 """ |
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675 metadata = {} |
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676 newdata = fixctx[path].data() |
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677 for fixername, fixer in pycompat.iteritems(fixers): |
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678 if fixer.affects(opts, fixctx, path): |
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679 ranges = lineranges( |
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680 opts, path, basepaths, basectxs, fixctx, newdata |
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681 ) |
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682 command = fixer.command(ui, path, ranges) |
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683 if command is None: |
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684 continue |
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685 ui.debug(b'subprocess: %s\n' % (command,)) |
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686 proc = subprocess.Popen( |
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687 procutil.tonativestr(command), |
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688 shell=True, |
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689 cwd=procutil.tonativestr(repo.root), |
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690 stdin=subprocess.PIPE, |
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691 stdout=subprocess.PIPE, |
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692 stderr=subprocess.PIPE, |
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693 ) |
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694 stdout, stderr = proc.communicate(newdata) |
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695 if stderr: |
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696 showstderr(ui, fixctx.rev(), fixername, stderr) |
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697 newerdata = stdout |
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698 if fixer.shouldoutputmetadata(): |
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699 try: |
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700 metadatajson, newerdata = stdout.split(b'\0', 1) |
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701 metadata[fixername] = pycompat.json_loads(metadatajson) |
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702 except ValueError: |
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703 ui.warn( |
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704 _(b'ignored invalid output from fixer tool: %s\n') |
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705 % (fixername,) |
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706 ) |
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707 continue |
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708 else: |
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709 metadata[fixername] = None |
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710 if proc.returncode == 0: |
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711 newdata = newerdata |
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712 else: |
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713 if not stderr: |
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714 message = _(b'exited with status %d\n') % (proc.returncode,) |
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715 showstderr(ui, fixctx.rev(), fixername, message) |
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716 checktoolfailureaction( |
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717 ui, |
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718 _(b'no fixes will be applied'), |
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719 hint=_( |
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720 b'use --config fix.failure=continue to apply any ' |
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721 b'successful fixes anyway' |
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722 ), |
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723 ) |
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724 return metadata, newdata |
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725 |
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|
726 |
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|
727 def showstderr(ui, rev, fixername, stderr): |
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parents:
diff
changeset
|
728 """Writes the lines of the stderr string as warnings on the ui |
ded5ea279a93
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diff
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|
729 |
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diff
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|
730 Uses the revision number and fixername to give more context to each line of |
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parents:
diff
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|
731 the error message. Doesn't include file names, since those take up a lot of |
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fix: new extension for automatically modifying file contents
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parents:
diff
changeset
|
732 space and would tend to be included in the error message if they were |
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parents:
diff
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|
733 relevant. |
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fix: new extension for automatically modifying file contents
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diff
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|
734 """ |
43077
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Augie Fackler <augie@google.com>
parents:
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diff
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|
735 for line in re.split(b'[\r\n]+', stderr): |
37183
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736 if line: |
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|
737 ui.warn(b'[') |
37183
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|
738 if rev is None: |
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|
739 ui.warn(_(b'wdir'), label=b'evolve.rev') |
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|
740 else: |
43501
b2f95f9d3588
fix: replace str() by b'%d' for formatting integer
Martin von Zweigbergk <martinvonz@google.com>
parents:
43380
diff
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|
741 ui.warn(b'%d' % rev, label=b'evolve.rev') |
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|
742 ui.warn(b'] %s: %s\n' % (fixername, line)) |
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|
743 |
37183
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|
744 |
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|
745 def writeworkingdir(repo, ctx, filedata, replacements): |
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|
746 """Write new content to the working copy and check out the new p1 if any |
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|
747 |
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|
748 We check out a new revision if and only if we fixed something in both the |
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|
749 working directory and its parent revision. This avoids the need for a full |
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parents:
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|
750 update/merge, and means that the working directory simply isn't affected |
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|
751 unless the --working-dir flag is given. |
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diff
changeset
|
752 |
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|
753 Directly updates the dirstate for the affected files. |
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|
754 """ |
47766
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diff
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|
755 assert repo.dirstate.p2() == nullid |
3feda1e779d4
fix: rewrite writeworkingdir() to explicitly not work with merges
Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
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|
756 |
43105
649d3ac37a12
py3: define and use pycompat.iteritems() for hgext/
Gregory Szorc <gregory.szorc@gmail.com>
parents:
43087
diff
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|
757 for path, data in pycompat.iteritems(filedata): |
37183
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|
758 fctx = ctx[path] |
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|
759 fctx.write(data, fctx.flags()) |
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|
760 |
47766
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diff
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|
761 oldp1 = repo.dirstate.p1() |
3feda1e779d4
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Martin von Zweigbergk <martinvonz@google.com>
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diff
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|
762 newp1 = replacements.get(oldp1, oldp1) |
3feda1e779d4
fix: rewrite writeworkingdir() to explicitly not work with merges
Martin von Zweigbergk <martinvonz@google.com>
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diff
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|
763 if newp1 != oldp1: |
47767
66ad7e32011f
fix: use scmutil.movedirstate() instead of reimplementing
Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
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|
764 with repo.dirstate.parentchange(): |
66ad7e32011f
fix: use scmutil.movedirstate() instead of reimplementing
Martin von Zweigbergk <martinvonz@google.com>
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|
765 scmutil.movedirstate(repo, repo[newp1]) |
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|
766 |
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|
767 |
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768 def replacerev(ui, repo, ctx, filedata, replacements): |
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769 """Commit a new revision like the given one, but with file content changes |
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|
770 |
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|
771 "ctx" is the original revision to be replaced by a modified one. |
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|
772 |
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|
773 "filedata" is a dict that maps paths to their new file content. All other |
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|
774 paths will be recreated from the original revision without changes. |
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|
775 "filedata" may contain paths that didn't exist in the original revision; |
ded5ea279a93
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|
776 they will be added. |
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|
777 |
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778 "replacements" is a dict that maps a single node to a single node, and it is |
ded5ea279a93
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|
779 updated to indicate the original revision is replaced by the newly created |
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|
780 one. No entry is added if the replacement's node already exists. |
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|
781 |
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782 The new revision has the same parents as the old one, unless those parents |
ded5ea279a93
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|
783 have already been replaced, in which case those replacements are the parents |
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|
784 of this new revision. Thus, if revisions are replaced in topological order, |
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785 there is no need to rebase them into the original topology later. |
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|
786 """ |
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diff
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|
787 |
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|
788 p1rev, p2rev = repo.changelog.parentrevs(ctx.rev()) |
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diff
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|
789 p1ctx, p2ctx = repo[p1rev], repo[p2rev] |
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|
790 newp1node = replacements.get(p1ctx.node(), p1ctx.node()) |
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791 newp2node = replacements.get(p2ctx.node(), p2ctx.node()) |
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parents:
diff
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|
792 |
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|
793 # We don't want to create a revision that has no changes from the original, |
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Danny Hooper <hooper@google.com>
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|
794 # but we should if the original revision's parent has been replaced. |
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|
795 # Otherwise, we would produce an orphan that needs no actual human |
ad71c792a8d8
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40566
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|
796 # intervention to evolve. We can't rely on commit() to avoid creating the |
ad71c792a8d8
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Danny Hooper <hooper@google.com>
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|
797 # un-needed revision because the extra field added below produces a new hash |
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|
798 # regardless of file content changes. |
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|
799 if ( |
2372284d9457
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|
800 not filedata |
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|
801 and p1ctx.node() not in replacements |
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|
802 and p2ctx.node() not in replacements |
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diff
changeset
|
803 ): |
40570
ad71c792a8d8
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parents:
40566
diff
changeset
|
804 return |
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fix: add extra field to fixed revisions to avoid creating obsolescence cycles
Danny Hooper <hooper@google.com>
parents:
40566
diff
changeset
|
805 |
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Danny Hooper <hooper@google.com>
parents:
40566
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|
806 extra = ctx.extra().copy() |
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|
807 extra[b'fix_source'] = ctx.hex() |
40570
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parents:
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changeset
|
808 |
43962
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Kyle Lippincott <spectral@google.com>
parents:
43936
diff
changeset
|
809 wctx = context.overlayworkingctx(repo) |
44092
833210fbd900
graftcopies: remove `skip` and `repo` arguments
Martin von Zweigbergk <martinvonz@google.com>
parents:
44090
diff
changeset
|
810 wctx.setbase(repo[newp1node]) |
44271
c791ed6a2154
merge: introduce a revert_to() for that use-case
Martin von Zweigbergk <martinvonz@google.com>
parents:
44129
diff
changeset
|
811 merge.revert_to(ctx, wc=wctx) |
44092
833210fbd900
graftcopies: remove `skip` and `repo` arguments
Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
812 copies.graftcopies(wctx, ctx, ctx.p1()) |
43962
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Kyle Lippincott <spectral@google.com>
parents:
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|
813 |
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parents:
43936
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|
814 for path in filedata.keys(): |
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43936
diff
changeset
|
815 fctx = ctx[path] |
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parents:
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|
816 copysource = fctx.copysource() |
eebdd6709868
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Kyle Lippincott <spectral@google.com>
parents:
43936
diff
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|
817 wctx.write(path, filedata[path], flags=fctx.flags()) |
eebdd6709868
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|
818 if copysource: |
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changeset
|
819 wctx.markcopied(path, copysource) |
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parents:
43936
diff
changeset
|
820 |
45713
04de8a1ec08f
fix: update commit hash references in the new commits
Matt Harbison <matt_harbison@yahoo.com>
parents:
45218
diff
changeset
|
821 desc = rewriteutil.update_hash_refs( |
04de8a1ec08f
fix: update commit hash references in the new commits
Matt Harbison <matt_harbison@yahoo.com>
parents:
45218
diff
changeset
|
822 repo, |
04de8a1ec08f
fix: update commit hash references in the new commits
Matt Harbison <matt_harbison@yahoo.com>
parents:
45218
diff
changeset
|
823 ctx.description(), |
04de8a1ec08f
fix: update commit hash references in the new commits
Matt Harbison <matt_harbison@yahoo.com>
parents:
45218
diff
changeset
|
824 {oldnode: [newnode] for oldnode, newnode in replacements.items()}, |
04de8a1ec08f
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Matt Harbison <matt_harbison@yahoo.com>
parents:
45218
diff
changeset
|
825 ) |
04de8a1ec08f
fix: update commit hash references in the new commits
Matt Harbison <matt_harbison@yahoo.com>
parents:
45218
diff
changeset
|
826 |
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changeset
|
827 memctx = wctx.tomemctx( |
45713
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fix: update commit hash references in the new commits
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parents:
45218
diff
changeset
|
828 text=desc, |
43962
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diff
changeset
|
829 branch=ctx.branch(), |
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43936
diff
changeset
|
830 extra=extra, |
38423
32fba6fe893d
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parents:
38420
diff
changeset
|
831 date=ctx.date(), |
43962
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Kyle Lippincott <spectral@google.com>
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43936
diff
changeset
|
832 parents=(newp1node, newp2node), |
eebdd6709868
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Kyle Lippincott <spectral@google.com>
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43936
diff
changeset
|
833 user=ctx.user(), |
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|
834 ) |
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parents:
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|
835 |
38423
32fba6fe893d
scmutil: make cleanupnodes optionally also fix the phase
Martin von Zweigbergk <martinvonz@google.com>
parents:
38420
diff
changeset
|
836 sucnode = memctx.commit() |
32fba6fe893d
scmutil: make cleanupnodes optionally also fix the phase
Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
837 prenode = ctx.node() |
32fba6fe893d
scmutil: make cleanupnodes optionally also fix the phase
Martin von Zweigbergk <martinvonz@google.com>
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38420
diff
changeset
|
838 if prenode == sucnode: |
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changeset
|
839 ui.debug(b'node %s already existed\n' % (ctx.hex())) |
38423
32fba6fe893d
scmutil: make cleanupnodes optionally also fix the phase
Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
840 else: |
32fba6fe893d
scmutil: make cleanupnodes optionally also fix the phase
Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
841 replacements[ctx.node()] = sucnode |
37183
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fix: new extension for automatically modifying file contents
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|
842 |
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|
843 |
37183
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diff
changeset
|
844 def getfixers(ui): |
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diff
changeset
|
845 """Returns a map of configured fixer tools indexed by their names |
ded5ea279a93
fix: new extension for automatically modifying file contents
Danny Hooper <hooper@google.com>
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diff
changeset
|
846 |
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847 Each value is a Fixer object with methods that implement the behavior of the |
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848 fixer's config suboptions. Does not validate the config values. |
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849 """ |
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850 fixers = {} |
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851 for name in fixernames(ui): |
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852 enabled = ui.configbool(b'fix', name + b':enabled') |
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853 command = ui.config(b'fix', name + b':command') |
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854 pattern = ui.config(b'fix', name + b':pattern') |
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855 linerange = ui.config(b'fix', name + b':linerange') |
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856 priority = ui.configint(b'fix', name + b':priority') |
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857 metadata = ui.configbool(b'fix', name + b':metadata') |
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858 skipclean = ui.configbool(b'fix', name + b':skipclean') |
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859 # Don't use a fixer if it has no pattern configured. It would be |
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860 # dangerous to let it affect all files. It would be pointless to let it |
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861 # affect no files. There is no reasonable subset of files to use as the |
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862 # default. |
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863 if command is None: |
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864 ui.warn( |
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865 _(b'fixer tool has no command configuration: %s\n') % (name,) |
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866 ) |
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867 elif pattern is None: |
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868 ui.warn( |
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869 _(b'fixer tool has no pattern configuration: %s\n') % (name,) |
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870 ) |
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871 elif not enabled: |
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872 ui.debug(b'ignoring disabled fixer tool: %s\n' % (name,)) |
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873 else: |
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874 fixers[name] = Fixer( |
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875 command, pattern, linerange, priority, metadata, skipclean |
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876 ) |
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877 return collections.OrderedDict( |
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878 sorted(fixers.items(), key=lambda item: item[1]._priority, reverse=True) |
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879 ) |
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880 |
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881 |
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882 def fixernames(ui): |
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883 """Returns the names of [fix] config options that have suboptions""" |
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884 names = set() |
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885 for k, v in ui.configitems(b'fix'): |
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886 if b':' in k: |
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887 names.add(k.split(b':', 1)[0]) |
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888 return names |
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889 |
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890 |
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891 class Fixer(object): |
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892 """Wraps the raw config values for a fixer with methods""" |
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893 |
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894 def __init__( |
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895 self, command, pattern, linerange, priority, metadata, skipclean |
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896 ): |
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897 self._command = command |
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898 self._pattern = pattern |
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899 self._linerange = linerange |
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900 self._priority = priority |
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901 self._metadata = metadata |
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902 self._skipclean = skipclean |
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903 |
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904 def affects(self, opts, fixctx, path): |
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905 """Should this fixer run on the file at the given path and context?""" |
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906 repo = fixctx.repo() |
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907 matcher = matchmod.match( |
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908 repo.root, repo.root, [self._pattern], ctx=fixctx |
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909 ) |
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910 return matcher(path) |
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911 |
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912 def shouldoutputmetadata(self): |
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913 """Should the stdout of this fixer start with JSON and a null byte?""" |
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914 return self._metadata |
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915 |
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916 def command(self, ui, path, ranges): |
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917 """A shell command to use to invoke this fixer on the given file/lines |
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918 |
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919 May return None if there is no appropriate command to run for the given |
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920 parameters. |
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921 """ |
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922 expand = cmdutil.rendercommandtemplate |
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923 parts = [ |
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924 expand( |
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925 ui, |
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926 self._command, |
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927 {b'rootpath': path, b'basename': os.path.basename(path)}, |
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928 ) |
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929 ] |
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930 if self._linerange: |
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931 if self._skipclean and not ranges: |
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932 # No line ranges to fix, so don't run the fixer. |
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933 return None |
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934 for first, last in ranges: |
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935 parts.append( |
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936 expand( |
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937 ui, self._linerange, {b'first': first, b'last': last} |
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938 ) |
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939 ) |
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940 return b' '.join(parts) |