Mercurial > hg
annotate hgext/fix.py @ 42009:8f427f7c1f71
fix: make the order of the work queue deterministic
This makes any output generated during the parallel phase of execution stable
if parallelism is disabled. This helps write tests like that in the future.
Differential Revision: https://phab.mercurial-scm.org/D6166
author | Danny Hooper <hooper@google.com> |
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date | Thu, 21 Mar 2019 18:27:09 -0700 |
parents | 7f6b375a8903 |
children | 0da689a60163 |
rev | line source |
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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 The :pattern suboption determines which files will be passed through each |
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40 configured tool. See :hg:`help patterns` for possible values. If there are file |
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41 arguments to :hg:`fix`, the intersection of these patterns is used. |
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42 |
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43 There is also a configurable limit for the maximum size of file that will be |
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44 processed by :hg:`fix`:: |
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45 |
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46 [fix] |
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47 maxfilesize = 2MB |
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48 |
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49 Normally, execution of configured tools will continue after a failure (indicated |
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50 by a non-zero exit status). It can also be configured to abort after the first |
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51 such failure, so that no files will be affected if any tool fails. This abort |
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52 will also cause :hg:`fix` to exit with a non-zero status:: |
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53 |
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54 [fix] |
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55 failure = abort |
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56 |
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57 When multiple tools are configured to affect a file, they execute in an order |
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58 defined by the :priority suboption. The priority suboption has a default value |
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59 of zero for each tool. Tools are executed in order of descending priority. The |
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60 execution order of tools with equal priority is unspecified. For example, you |
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61 could use the 'sort' and 'head' utilities to keep only the 10 smallest numbers |
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62 in a text file by ensuring that 'sort' runs before 'head':: |
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63 |
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64 [fix] |
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65 sort:command = sort -n |
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66 head:command = head -n 10 |
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67 sort:pattern = numbers.txt |
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68 head:pattern = numbers.txt |
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69 sort:priority = 2 |
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70 head:priority = 1 |
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71 |
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72 To account for changes made by each tool, the line numbers used for incremental |
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73 formatting are recomputed before executing the next tool. So, each tool may see |
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74 different values for the arguments added by the :linerange suboption. |
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75 """ |
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76 |
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77 from __future__ import absolute_import |
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78 |
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79 import collections |
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80 import itertools |
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81 import os |
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82 import re |
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83 import subprocess |
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84 |
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85 from mercurial.i18n import _ |
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86 from mercurial.node import nullrev |
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87 from mercurial.node import wdirrev |
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88 |
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89 from mercurial.utils import ( |
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90 procutil, |
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91 ) |
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92 |
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93 from mercurial import ( |
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94 cmdutil, |
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95 context, |
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96 copies, |
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97 error, |
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98 mdiff, |
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99 merge, |
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100 obsolete, |
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101 pycompat, |
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102 registrar, |
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103 scmutil, |
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104 util, |
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105 worker, |
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106 ) |
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107 |
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108 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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109 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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110 # be specifying the version(s) of Mercurial they are tested with, or |
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111 # leave the attribute unspecified. |
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112 testedwith = 'ships-with-hg-core' |
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113 |
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114 cmdtable = {} |
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115 command = registrar.command(cmdtable) |
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116 |
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117 configtable = {} |
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118 configitem = registrar.configitem(configtable) |
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119 |
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120 # Register the suboptions allowed for each configured fixer. |
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121 FIXER_ATTRS = { |
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122 'command': None, |
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123 'linerange': None, |
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124 'fileset': None, |
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125 'pattern': None, |
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126 'priority': 0, |
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127 } |
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128 |
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129 for key, default in FIXER_ATTRS.items(): |
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130 configitem('fix', '.*(:%s)?' % key, default=default, generic=True) |
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131 |
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132 # A good default size allows most source code files to be fixed, but avoids |
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133 # letting fixer tools choke on huge inputs, which could be surprising to the |
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134 # user. |
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135 configitem('fix', 'maxfilesize', default='2MB') |
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136 |
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137 # Allow fix commands to exit non-zero if an executed fixer tool exits non-zero. |
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138 # This helps users do shell scripts that stop when a fixer tool signals a |
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139 # problem. |
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140 configitem('fix', 'failure', default='continue') |
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141 |
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142 def checktoolfailureaction(ui, message, hint=None): |
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143 """Abort with 'message' if fix.failure=abort""" |
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144 action = ui.config('fix', 'failure') |
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145 if action not in ('continue', 'abort'): |
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146 raise error.Abort(_('unknown fix.failure action: %s') % (action,), |
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147 hint=_('use "continue" or "abort"')) |
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148 if action == 'abort': |
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149 raise error.Abort(message, hint=hint) |
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150 |
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151 allopt = ('', 'all', False, _('fix all non-public non-obsolete revisions')) |
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152 baseopt = ('', 'base', [], _('revisions to diff against (overrides automatic ' |
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153 'selection, and applies to every revision being ' |
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154 'fixed)'), _('REV')) |
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155 revopt = ('r', 'rev', [], _('revisions to fix'), _('REV')) |
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156 wdiropt = ('w', 'working-dir', False, _('fix the working directory')) |
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157 wholeopt = ('', 'whole', False, _('always fix every line of a file')) |
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158 usage = _('[OPTION]... [FILE]...') |
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159 |
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160 @command('fix', [allopt, baseopt, revopt, wdiropt, wholeopt], usage, |
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161 helpcategory=command.CATEGORY_FILE_CONTENTS) |
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162 def fix(ui, repo, *pats, **opts): |
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163 """rewrite file content in changesets or working directory |
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164 |
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165 Runs any configured tools to fix the content of files. Only affects files |
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166 with changes, unless file arguments are provided. Only affects changed lines |
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167 of files, unless the --whole flag is used. Some tools may always affect the |
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168 whole file regardless of --whole. |
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169 |
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170 If revisions are specified with --rev, those revisions will be checked, and |
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171 they may be replaced with new revisions that have fixed file content. It is |
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172 desirable to specify all descendants of each specified revision, so that the |
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173 fixes propagate to the descendants. If all descendants are fixed at the same |
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174 time, no merging, rebasing, or evolution will be required. |
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175 |
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176 If --working-dir is used, files with uncommitted changes in the working copy |
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177 will be fixed. If the checked-out revision is also fixed, the working |
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178 directory will update to the replacement revision. |
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179 |
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180 When determining what lines of each file to fix at each revision, the whole |
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181 set of revisions being fixed is considered, so that fixes to earlier |
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182 revisions are not forgotten in later ones. The --base flag can be used to |
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183 override this default behavior, though it is not usually desirable to do so. |
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184 """ |
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185 opts = pycompat.byteskwargs(opts) |
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186 if opts['all']: |
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187 if opts['rev']: |
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188 raise error.Abort(_('cannot specify both "--rev" and "--all"')) |
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189 opts['rev'] = ['not public() and not obsolete()'] |
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190 opts['working_dir'] = True |
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191 with repo.wlock(), repo.lock(), repo.transaction('fix'): |
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192 revstofix = getrevstofix(ui, repo, opts) |
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193 basectxs = getbasectxs(repo, opts, revstofix) |
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194 workqueue, numitems = getworkqueue(ui, repo, pats, opts, revstofix, |
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195 basectxs) |
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196 fixers = getfixers(ui) |
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197 |
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198 # There are no data dependencies between the workers fixing each file |
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199 # revision, so we can use all available parallelism. |
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200 def getfixes(items): |
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201 for rev, path in items: |
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202 ctx = repo[rev] |
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203 olddata = ctx[path].data() |
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204 newdata = fixfile(ui, opts, fixers, ctx, path, basectxs[rev]) |
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205 # Don't waste memory/time passing unchanged content back, but |
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206 # produce one result per item either way. |
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207 yield (rev, path, newdata if newdata != olddata else None) |
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208 results = worker.worker(ui, 1.0, getfixes, tuple(), workqueue, |
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209 threadsafe=False) |
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210 |
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211 # We have to hold on to the data for each successor revision in memory |
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212 # until all its parents are committed. We ensure this by committing and |
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213 # freeing memory for the revisions in some topological order. This |
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214 # leaves a little bit of memory efficiency on the table, but also makes |
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215 # the tests deterministic. It might also be considered a feature since |
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216 # it makes the results more easily reproducible. |
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217 filedata = collections.defaultdict(dict) |
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218 replacements = {} |
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219 wdirwritten = False |
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220 commitorder = sorted(revstofix, reverse=True) |
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221 with ui.makeprogress(topic=_('fixing'), unit=_('files'), |
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222 total=sum(numitems.values())) as progress: |
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223 for rev, path, newdata in results: |
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224 progress.increment(item=path) |
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225 if newdata is not None: |
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226 filedata[rev][path] = newdata |
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227 numitems[rev] -= 1 |
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228 # Apply the fixes for this and any other revisions that are |
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229 # ready and sitting at the front of the queue. Using a loop here |
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230 # prevents the queue from being blocked by the first revision to |
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231 # be ready out of order. |
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232 while commitorder and not numitems[commitorder[-1]]: |
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233 rev = commitorder.pop() |
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234 ctx = repo[rev] |
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235 if rev == wdirrev: |
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236 writeworkingdir(repo, ctx, filedata[rev], replacements) |
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237 wdirwritten = bool(filedata[rev]) |
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238 else: |
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239 replacerev(ui, repo, ctx, filedata[rev], replacements) |
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240 del filedata[rev] |
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241 |
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242 cleanup(repo, replacements, wdirwritten) |
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243 |
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244 def cleanup(repo, replacements, wdirwritten): |
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245 """Calls scmutil.cleanupnodes() with the given replacements. |
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246 |
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247 "replacements" is a dict from nodeid to nodeid, with one key and one value |
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248 for every revision that was affected by fixing. This is slightly different |
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249 from cleanupnodes(). |
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250 |
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251 "wdirwritten" is a bool which tells whether the working copy was affected by |
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252 fixing, since it has no entry in "replacements". |
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253 |
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254 Useful as a hook point for extending "hg fix" with output summarizing the |
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255 effects of the command, though we choose not to output anything here. |
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256 """ |
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257 replacements = {prec: [succ] for prec, succ in replacements.iteritems()} |
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258 scmutil.cleanupnodes(repo, replacements, 'fix', fixphase=True) |
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259 |
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260 def getworkqueue(ui, repo, pats, opts, revstofix, basectxs): |
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261 """"Constructs the list of files to be fixed at specific revisions |
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262 |
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263 It is up to the caller how to consume the work items, and the only |
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264 dependence between them is that replacement revisions must be committed in |
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265 topological order. Each work item represents a file in the working copy or |
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266 in some revision that should be fixed and written back to the working copy |
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267 or into a replacement revision. |
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268 |
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269 Work items for the same revision are grouped together, so that a worker |
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270 pool starting with the first N items in parallel is likely to finish the |
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271 first revision's work before other revisions. This can allow us to write |
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272 the result to disk and reduce memory footprint. At time of writing, the |
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273 partition strategy in worker.py seems favorable to this. We also sort the |
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274 items by ascending revision number to match the order in which we commit |
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275 the fixes later. |
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276 """ |
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277 workqueue = [] |
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278 numitems = collections.defaultdict(int) |
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279 maxfilesize = ui.configbytes('fix', 'maxfilesize') |
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280 for rev in sorted(revstofix): |
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281 fixctx = repo[rev] |
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282 match = scmutil.match(fixctx, pats, opts) |
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283 for path in sorted(pathstofix( |
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284 ui, repo, pats, opts, match, basectxs[rev], fixctx)): |
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285 fctx = fixctx[path] |
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286 if fctx.islink(): |
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287 continue |
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288 if fctx.size() > maxfilesize: |
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289 ui.warn(_('ignoring file larger than %s: %s\n') % |
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290 (util.bytecount(maxfilesize), path)) |
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291 continue |
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292 workqueue.append((rev, path)) |
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293 numitems[rev] += 1 |
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294 return workqueue, numitems |
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295 |
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296 def getrevstofix(ui, repo, opts): |
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297 """Returns the set of revision numbers that should be fixed""" |
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298 revs = set(scmutil.revrange(repo, opts['rev'])) |
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299 for rev in revs: |
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300 checkfixablectx(ui, repo, repo[rev]) |
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301 if revs: |
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302 cmdutil.checkunfinished(repo) |
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303 checknodescendants(repo, revs) |
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304 if opts.get('working_dir'): |
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305 revs.add(wdirrev) |
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306 if list(merge.mergestate.read(repo).unresolved()): |
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307 raise error.Abort('unresolved conflicts', hint="use 'hg resolve'") |
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308 if not revs: |
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309 raise error.Abort( |
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310 'no changesets specified', hint='use --rev or --working-dir') |
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311 return revs |
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312 |
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313 def checknodescendants(repo, revs): |
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314 if (not obsolete.isenabled(repo, obsolete.allowunstableopt) and |
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315 repo.revs('(%ld::) - (%ld)', revs, revs)): |
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316 raise error.Abort(_('can only fix a changeset together ' |
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317 'with all its descendants')) |
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318 |
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319 def checkfixablectx(ui, repo, ctx): |
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320 """Aborts if the revision shouldn't be replaced with a fixed one.""" |
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321 if not ctx.mutable(): |
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322 raise error.Abort('can\'t fix immutable changeset %s' % |
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323 (scmutil.formatchangeid(ctx),)) |
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324 if ctx.obsolete(): |
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325 # It would be better to actually check if the revision has a successor. |
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326 allowdivergence = ui.configbool('experimental', |
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327 'evolution.allowdivergence') |
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328 if not allowdivergence: |
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329 raise error.Abort('fixing obsolete revision could cause divergence') |
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330 |
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331 def pathstofix(ui, repo, pats, opts, match, basectxs, fixctx): |
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332 """Returns the set of files that should be fixed in a context |
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333 |
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334 The result depends on the base contexts; we include any file that has |
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335 changed relative to any of the base contexts. Base contexts should be |
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336 ancestors of the context being fixed. |
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337 """ |
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338 files = set() |
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339 for basectx in basectxs: |
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340 stat = basectx.status(fixctx, match=match, listclean=bool(pats), |
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341 listunknown=bool(pats)) |
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342 files.update( |
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343 set(itertools.chain(stat.added, stat.modified, stat.clean, |
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344 stat.unknown))) |
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345 return files |
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346 |
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347 def lineranges(opts, path, basectxs, fixctx, content2): |
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348 """Returns the set of line ranges that should be fixed in a file |
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349 |
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350 Of the form [(10, 20), (30, 40)]. |
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351 |
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352 This depends on the given base contexts; we must consider lines that have |
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353 changed versus any of the base contexts, and whether the file has been |
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354 renamed versus any of them. |
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355 |
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356 Another way to understand this is that we exclude line ranges that are |
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357 common to the file in all base contexts. |
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358 """ |
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359 if opts.get('whole'): |
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360 # Return a range containing all lines. Rely on the diff implementation's |
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361 # idea of how many lines are in the file, instead of reimplementing it. |
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362 return difflineranges('', content2) |
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363 |
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364 rangeslist = [] |
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365 for basectx in basectxs: |
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366 basepath = copies.pathcopies(basectx, fixctx).get(path, path) |
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367 if basepath in basectx: |
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368 content1 = basectx[basepath].data() |
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369 else: |
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370 content1 = '' |
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371 rangeslist.extend(difflineranges(content1, content2)) |
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372 return unionranges(rangeslist) |
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373 |
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374 def unionranges(rangeslist): |
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375 """Return the union of some closed intervals |
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376 |
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377 >>> unionranges([]) |
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378 [] |
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379 >>> unionranges([(1, 100)]) |
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380 [(1, 100)] |
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381 >>> unionranges([(1, 100), (1, 100)]) |
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382 [(1, 100)] |
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383 >>> unionranges([(1, 100), (2, 100)]) |
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384 [(1, 100)] |
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385 >>> unionranges([(1, 99), (1, 100)]) |
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386 [(1, 100)] |
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387 >>> unionranges([(1, 100), (40, 60)]) |
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388 [(1, 100)] |
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389 >>> unionranges([(1, 49), (50, 100)]) |
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390 [(1, 100)] |
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391 >>> unionranges([(1, 48), (50, 100)]) |
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392 [(1, 48), (50, 100)] |
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393 >>> unionranges([(1, 2), (3, 4), (5, 6)]) |
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394 [(1, 6)] |
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395 """ |
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396 rangeslist = sorted(set(rangeslist)) |
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397 unioned = [] |
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398 if rangeslist: |
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399 unioned, rangeslist = [rangeslist[0]], rangeslist[1:] |
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400 for a, b in rangeslist: |
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401 c, d = unioned[-1] |
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402 if a > d + 1: |
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403 unioned.append((a, b)) |
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404 else: |
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405 unioned[-1] = (c, max(b, d)) |
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406 return unioned |
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407 |
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408 def difflineranges(content1, content2): |
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409 """Return list of line number ranges in content2 that differ from content1. |
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410 |
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411 Line numbers are 1-based. The numbers are the first and last line contained |
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412 in the range. Single-line ranges have the same line number for the first and |
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413 last line. Excludes any empty ranges that result from lines that are only |
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414 present in content1. Relies on mdiff's idea of where the line endings are in |
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415 the string. |
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416 |
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417 >>> from mercurial import pycompat |
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418 >>> lines = lambda s: b'\\n'.join([c for c in pycompat.iterbytestr(s)]) |
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419 >>> difflineranges2 = lambda a, b: difflineranges(lines(a), lines(b)) |
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420 >>> difflineranges2(b'', b'') |
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421 [] |
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422 >>> difflineranges2(b'a', b'') |
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423 [] |
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424 >>> difflineranges2(b'', b'A') |
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425 [(1, 1)] |
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426 >>> difflineranges2(b'a', b'a') |
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427 [] |
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428 >>> difflineranges2(b'a', b'A') |
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429 [(1, 1)] |
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430 >>> difflineranges2(b'ab', b'') |
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431 [] |
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432 >>> difflineranges2(b'', b'AB') |
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433 [(1, 2)] |
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434 >>> difflineranges2(b'abc', b'ac') |
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435 [] |
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436 >>> difflineranges2(b'ab', b'aCb') |
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437 [(2, 2)] |
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438 >>> difflineranges2(b'abc', b'aBc') |
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439 [(2, 2)] |
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440 >>> difflineranges2(b'ab', b'AB') |
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441 [(1, 2)] |
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442 >>> difflineranges2(b'abcde', b'aBcDe') |
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443 [(2, 2), (4, 4)] |
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444 >>> difflineranges2(b'abcde', b'aBCDe') |
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445 [(2, 4)] |
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446 """ |
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447 ranges = [] |
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448 for lines, kind in mdiff.allblocks(content1, content2): |
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449 firstline, lastline = lines[2:4] |
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450 if kind == '!' and firstline != lastline: |
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451 ranges.append((firstline + 1, lastline)) |
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452 return ranges |
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453 |
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454 def getbasectxs(repo, opts, revstofix): |
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455 """Returns a map of the base contexts for each revision |
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456 |
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457 The base contexts determine which lines are considered modified when we |
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458 attempt to fix just the modified lines in a file. It also determines which |
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459 files we attempt to fix, so it is important to compute this even when |
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460 --whole is used. |
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461 """ |
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462 # The --base flag overrides the usual logic, and we give every revision |
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463 # exactly the set of baserevs that the user specified. |
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464 if opts.get('base'): |
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465 baserevs = set(scmutil.revrange(repo, opts.get('base'))) |
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466 if not baserevs: |
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467 baserevs = {nullrev} |
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468 basectxs = {repo[rev] for rev in baserevs} |
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469 return {rev: basectxs for rev in revstofix} |
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470 |
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471 # Proceed in topological order so that we can easily determine each |
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472 # revision's baserevs by looking at its parents and their baserevs. |
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473 basectxs = collections.defaultdict(set) |
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474 for rev in sorted(revstofix): |
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475 ctx = repo[rev] |
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476 for pctx in ctx.parents(): |
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477 if pctx.rev() in basectxs: |
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478 basectxs[rev].update(basectxs[pctx.rev()]) |
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479 else: |
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480 basectxs[rev].add(pctx) |
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481 return basectxs |
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482 |
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483 def fixfile(ui, opts, fixers, fixctx, path, basectxs): |
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484 """Run any configured fixers that should affect the file in this context |
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485 |
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486 Returns the file content that results from applying the fixers in some order |
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487 starting with the file's content in the fixctx. Fixers that support line |
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488 ranges will affect lines that have changed relative to any of the basectxs |
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489 (i.e. they will only avoid lines that are common to all basectxs). |
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490 |
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491 A fixer tool's stdout will become the file's new content if and only if it |
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492 exits with code zero. |
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493 """ |
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494 newdata = fixctx[path].data() |
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495 for fixername, fixer in fixers.iteritems(): |
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496 if fixer.affects(opts, fixctx, path): |
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497 rangesfn = lambda: lineranges(opts, path, basectxs, fixctx, newdata) |
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498 command = fixer.command(ui, path, rangesfn) |
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499 if command is None: |
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500 continue |
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501 ui.debug('subprocess: %s\n' % (command,)) |
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502 proc = subprocess.Popen( |
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503 procutil.tonativestr(command), |
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504 shell=True, |
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505 cwd=procutil.tonativestr(b'/'), |
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506 stdin=subprocess.PIPE, |
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507 stdout=subprocess.PIPE, |
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508 stderr=subprocess.PIPE) |
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509 newerdata, stderr = proc.communicate(newdata) |
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510 if stderr: |
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511 showstderr(ui, fixctx.rev(), fixername, stderr) |
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512 if proc.returncode == 0: |
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513 newdata = newerdata |
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514 else: |
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515 if not stderr: |
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516 message = _('exited with status %d\n') % (proc.returncode,) |
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517 showstderr(ui, fixctx.rev(), fixername, message) |
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518 checktoolfailureaction( |
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519 ui, _('no fixes will be applied'), |
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520 hint=_('use --config fix.failure=continue to apply any ' |
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521 'successful fixes anyway')) |
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522 return newdata |
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523 |
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524 def showstderr(ui, rev, fixername, stderr): |
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525 """Writes the lines of the stderr string as warnings on the ui |
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526 |
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527 Uses the revision number and fixername to give more context to each line of |
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528 the error message. Doesn't include file names, since those take up a lot of |
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529 space and would tend to be included in the error message if they were |
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530 relevant. |
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531 """ |
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532 for line in re.split('[\r\n]+', stderr): |
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533 if line: |
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534 ui.warn(('[')) |
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535 if rev is None: |
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536 ui.warn(_('wdir'), label='evolve.rev') |
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537 else: |
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538 ui.warn((str(rev)), label='evolve.rev') |
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539 ui.warn(('] %s: %s\n') % (fixername, line)) |
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540 |
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541 def writeworkingdir(repo, ctx, filedata, replacements): |
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542 """Write new content to the working copy and check out the new p1 if any |
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543 |
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544 We check out a new revision if and only if we fixed something in both the |
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545 working directory and its parent revision. This avoids the need for a full |
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546 update/merge, and means that the working directory simply isn't affected |
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547 unless the --working-dir flag is given. |
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548 |
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549 Directly updates the dirstate for the affected files. |
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550 """ |
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551 for path, data in filedata.iteritems(): |
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552 fctx = ctx[path] |
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553 fctx.write(data, fctx.flags()) |
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554 if repo.dirstate[path] == 'n': |
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555 repo.dirstate.normallookup(path) |
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556 |
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|
557 oldparentnodes = repo.dirstate.parents() |
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|
558 newparentnodes = [replacements.get(n, n) for n in oldparentnodes] |
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559 if newparentnodes != oldparentnodes: |
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560 repo.setparents(*newparentnodes) |
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561 |
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562 def replacerev(ui, repo, ctx, filedata, replacements): |
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563 """Commit a new revision like the given one, but with file content changes |
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564 |
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565 "ctx" is the original revision to be replaced by a modified one. |
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566 |
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567 "filedata" is a dict that maps paths to their new file content. All other |
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568 paths will be recreated from the original revision without changes. |
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569 "filedata" may contain paths that didn't exist in the original revision; |
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570 they will be added. |
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|
571 |
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572 "replacements" is a dict that maps a single node to a single node, and it is |
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573 updated to indicate the original revision is replaced by the newly created |
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574 one. No entry is added if the replacement's node already exists. |
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|
575 |
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576 The new revision has the same parents as the old one, unless those parents |
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577 have already been replaced, in which case those replacements are the parents |
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578 of this new revision. Thus, if revisions are replaced in topological order, |
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579 there is no need to rebase them into the original topology later. |
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580 """ |
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581 |
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|
582 p1rev, p2rev = repo.changelog.parentrevs(ctx.rev()) |
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|
583 p1ctx, p2ctx = repo[p1rev], repo[p2rev] |
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584 newp1node = replacements.get(p1ctx.node(), p1ctx.node()) |
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585 newp2node = replacements.get(p2ctx.node(), p2ctx.node()) |
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diff
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586 |
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|
587 # We don't want to create a revision that has no changes from the original, |
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diff
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|
588 # but we should if the original revision's parent has been replaced. |
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|
589 # Otherwise, we would produce an orphan that needs no actual human |
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590 # 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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591 # un-needed revision because the extra field added below produces a new hash |
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592 # regardless of file content changes. |
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Danny Hooper <hooper@google.com>
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|
593 if (not filedata and |
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|
594 p1ctx.node() not in replacements and |
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diff
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|
595 p2ctx.node() not in replacements): |
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diff
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|
596 return |
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597 |
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598 def filectxfn(repo, memctx, path): |
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|
599 if path not in ctx: |
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600 return None |
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parents:
diff
changeset
|
601 fctx = ctx[path] |
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parents:
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|
602 copysource = fctx.copysource() |
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|
603 return context.memfilectx( |
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changeset
|
604 repo, |
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Danny Hooper <hooper@google.com>
parents:
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changeset
|
605 memctx, |
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Danny Hooper <hooper@google.com>
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|
606 path=fctx.path(), |
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|
607 data=filedata.get(path, fctx.data()), |
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Danny Hooper <hooper@google.com>
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|
608 islink=fctx.islink(), |
ded5ea279a93
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parents:
diff
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|
609 isexec=fctx.isexec(), |
41994
550a172a603b
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diff
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|
610 copysource=copysource) |
37183
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611 |
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612 extra = ctx.extra().copy() |
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parents:
40566
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613 extra['fix_source'] = ctx.hex() |
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|
614 |
38423
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|
615 memctx = context.memctx( |
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|
616 repo, |
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|
617 parents=(newp1node, newp2node), |
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|
618 text=ctx.description(), |
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|
619 files=set(ctx.files()) | set(filedata.keys()), |
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|
620 filectxfn=filectxfn, |
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|
621 user=ctx.user(), |
32fba6fe893d
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|
622 date=ctx.date(), |
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|
623 extra=extra, |
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|
624 branch=ctx.branch(), |
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|
625 editor=None) |
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|
626 sucnode = memctx.commit() |
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|
627 prenode = ctx.node() |
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|
628 if prenode == sucnode: |
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diff
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|
629 ui.debug('node %s already existed\n' % (ctx.hex())) |
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|
630 else: |
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631 replacements[ctx.node()] = sucnode |
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632 |
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633 def getfixers(ui): |
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634 """Returns a map of configured fixer tools indexed by their names |
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635 |
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636 Each value is a Fixer object with methods that implement the behavior of the |
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637 fixer's config suboptions. Does not validate the config values. |
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638 """ |
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639 fixers = {} |
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640 for name in fixernames(ui): |
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641 fixers[name] = Fixer() |
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642 attrs = ui.configsuboptions('fix', name)[1] |
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643 if 'fileset' in attrs and 'pattern' not in attrs: |
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644 ui.warn(_('the fix.tool:fileset config name is deprecated; ' |
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645 'please rename it to fix.tool:pattern\n')) |
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646 attrs['pattern'] = attrs['fileset'] |
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647 for key, default in FIXER_ATTRS.items(): |
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648 setattr(fixers[name], pycompat.sysstr('_' + key), |
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649 attrs.get(key, default)) |
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650 fixers[name]._priority = int(fixers[name]._priority) |
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651 return collections.OrderedDict( |
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652 sorted(fixers.items(), key=lambda item: item[1]._priority, |
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653 reverse=True)) |
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654 |
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655 def fixernames(ui): |
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656 """Returns the names of [fix] config options that have suboptions""" |
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657 names = set() |
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658 for k, v in ui.configitems('fix'): |
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659 if ':' in k: |
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660 names.add(k.split(':', 1)[0]) |
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661 return names |
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662 |
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663 class Fixer(object): |
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664 """Wraps the raw config values for a fixer with methods""" |
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665 |
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666 def affects(self, opts, fixctx, path): |
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667 """Should this fixer run on the file at the given path and context?""" |
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668 return scmutil.match(fixctx, [self._pattern], opts)(path) |
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669 |
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670 def command(self, ui, path, rangesfn): |
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671 """A shell command to use to invoke this fixer on the given file/lines |
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672 |
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673 May return None if there is no appropriate command to run for the given |
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674 parameters. |
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675 """ |
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676 expand = cmdutil.rendercommandtemplate |
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677 parts = [expand(ui, self._command, |
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678 {'rootpath': path, 'basename': os.path.basename(path)})] |
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679 if self._linerange: |
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680 ranges = rangesfn() |
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681 if not ranges: |
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682 # No line ranges to fix, so don't run the fixer. |
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683 return None |
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684 for first, last in ranges: |
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685 parts.append(expand(ui, self._linerange, |
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686 {'first': first, 'last': last})) |
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687 return ' '.join(parts) |