Mercurial > hg
annotate hgext/histedit.py @ 17644:9ae073f10572
histedit: fold in memory
Update the folding code to works in memory instead of applying patches on the
working directory. This is cleaner, faster and prepare the removal of the whole
patching logic.
This new collapse function will probably move into core sooner or later. A lot
of other rewriting operation may benefit from it.
author | Pierre-Yves David <pierre-yves.david@logilab.fr> |
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date | Fri, 21 Sep 2012 19:24:31 +0200 |
parents | 64e0f0cfb569 |
children | 4721fc933943 |
rev | line source |
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1 # histedit.py - interactive history editing for mercurial |
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2 # |
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3 # Copyright 2009 Augie Fackler <raf@durin42.com> |
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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 """interactive history editing |
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8 |
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9 With this extension installed, Mercurial gains one new command: histedit. Usage |
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10 is as follows, assuming the following history:: |
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11 |
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12 @ 3[tip] 7c2fd3b9020c 2009-04-27 18:04 -0500 durin42 |
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13 | Add delta |
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14 | |
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15 o 2 030b686bedc4 2009-04-27 18:04 -0500 durin42 |
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16 | Add gamma |
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17 | |
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18 o 1 c561b4e977df 2009-04-27 18:04 -0500 durin42 |
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19 | Add beta |
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20 | |
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21 o 0 d8d2fcd0e319 2009-04-27 18:04 -0500 durin42 |
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22 Add alpha |
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23 |
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24 If you were to run ``hg histedit c561b4e977df``, you would see the following |
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25 file open in your editor:: |
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26 |
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27 pick c561b4e977df Add beta |
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28 pick 030b686bedc4 Add gamma |
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29 pick 7c2fd3b9020c Add delta |
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30 |
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31 # Edit history between 633536316234 and 7c2fd3b9020c |
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32 # |
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33 # Commands: |
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34 # p, pick = use commit |
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35 # e, edit = use commit, but stop for amending |
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36 # f, fold = use commit, but fold into previous commit (combines N and N-1) |
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37 # d, drop = remove commit from history |
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38 # m, mess = edit message without changing commit content |
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39 # |
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40 |
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41 In this file, lines beginning with ``#`` are ignored. You must specify a rule |
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42 for each revision in your history. For example, if you had meant to add gamma |
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43 before beta, and then wanted to add delta in the same revision as beta, you |
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44 would reorganize the file to look like this:: |
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45 |
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46 pick 030b686bedc4 Add gamma |
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47 pick c561b4e977df Add beta |
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48 fold 7c2fd3b9020c Add delta |
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49 |
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50 # Edit history between 633536316234 and 7c2fd3b9020c |
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51 # |
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52 # Commands: |
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53 # p, pick = use commit |
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54 # e, edit = use commit, but stop for amending |
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55 # f, fold = use commit, but fold into previous commit (combines N and N-1) |
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56 # d, drop = remove commit from history |
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57 # m, mess = edit message without changing commit content |
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58 # |
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59 |
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60 At which point you close the editor and ``histedit`` starts working. When you |
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61 specify a ``fold`` operation, ``histedit`` will open an editor when it folds |
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62 those revisions together, offering you a chance to clean up the commit message:: |
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63 |
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64 Add beta |
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65 *** |
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66 Add delta |
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67 |
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68 Edit the commit message to your liking, then close the editor. For |
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69 this example, let's assume that the commit message was changed to |
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70 ``Add beta and delta.`` After histedit has run and had a chance to |
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71 remove any old or temporary revisions it needed, the history looks |
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72 like this:: |
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73 |
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74 @ 2[tip] 989b4d060121 2009-04-27 18:04 -0500 durin42 |
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75 | Add beta and delta. |
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76 | |
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77 o 1 081603921c3f 2009-04-27 18:04 -0500 durin42 |
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78 | Add gamma |
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79 | |
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80 o 0 d8d2fcd0e319 2009-04-27 18:04 -0500 durin42 |
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81 Add alpha |
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82 |
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83 Note that ``histedit`` does *not* remove any revisions (even its own temporary |
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84 ones) until after it has completed all the editing operations, so it will |
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85 probably perform several strip operations when it's done. For the above example, |
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86 it had to run strip twice. Strip can be slow depending on a variety of factors, |
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87 so you might need to be a little patient. You can choose to keep the original |
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88 revisions by passing the ``--keep`` flag. |
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89 |
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90 The ``edit`` operation will drop you back to a command prompt, |
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91 allowing you to edit files freely, or even use ``hg record`` to commit |
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92 some changes as a separate commit. When you're done, any remaining |
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93 uncommitted changes will be committed as well. When done, run ``hg |
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94 histedit --continue`` to finish this step. You'll be prompted for a |
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95 new commit message, but the default commit message will be the |
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96 original message for the ``edit`` ed revision. |
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97 |
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98 The ``message`` operation will give you a chance to revise a commit |
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99 message without changing the contents. It's a shortcut for doing |
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100 ``edit`` immediately followed by `hg histedit --continue``. |
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101 |
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102 If ``histedit`` encounters a conflict when moving a revision (while |
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103 handling ``pick`` or ``fold``), it'll stop in a similar manner to |
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104 ``edit`` with the difference that it won't prompt you for a commit |
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105 message when done. If you decide at this point that you don't like how |
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106 much work it will be to rearrange history, or that you made a mistake, |
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107 you can use ``hg histedit --abort`` to abandon the new changes you |
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108 have made and return to the state before you attempted to edit your |
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109 history. |
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110 |
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111 If we clone the example repository above and add three more changes, such that |
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112 we have the following history:: |
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113 |
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114 @ 6[tip] 038383181893 2009-04-27 18:04 -0500 stefan |
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115 | Add theta |
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116 | |
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117 o 5 140988835471 2009-04-27 18:04 -0500 stefan |
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118 | Add eta |
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119 | |
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120 o 4 122930637314 2009-04-27 18:04 -0500 stefan |
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121 | Add zeta |
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122 | |
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123 o 3 836302820282 2009-04-27 18:04 -0500 stefan |
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124 | Add epsilon |
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125 | |
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126 o 2 989b4d060121 2009-04-27 18:04 -0500 durin42 |
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127 | Add beta and delta. |
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128 | |
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129 o 1 081603921c3f 2009-04-27 18:04 -0500 durin42 |
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130 | Add gamma |
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131 | |
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132 o 0 d8d2fcd0e319 2009-04-27 18:04 -0500 durin42 |
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133 Add alpha |
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134 |
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135 If you run ``hg histedit --outgoing`` on the clone then it is the same |
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136 as running ``hg histedit 836302820282``. If you need plan to push to a |
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137 repository that Mercurial does not detect to be related to the source |
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138 repo, you can add a ``--force`` option. |
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139 """ |
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140 |
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141 try: |
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142 import cPickle as pickle |
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143 except ImportError: |
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144 import pickle |
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145 import tempfile |
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146 import os |
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147 |
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148 from mercurial import bookmarks |
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149 from mercurial import cmdutil |
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150 from mercurial import discovery |
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151 from mercurial import error |
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152 from mercurial import copies |
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153 from mercurial import context |
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154 from mercurial import hg |
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155 from mercurial import lock as lockmod |
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156 from mercurial import node |
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157 from mercurial import patch |
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158 from mercurial import repair |
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159 from mercurial import scmutil |
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160 from mercurial import util |
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161 from mercurial.i18n import _ |
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162 |
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163 cmdtable = {} |
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164 command = cmdutil.command(cmdtable) |
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165 |
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166 testedwith = 'internal' |
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167 |
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168 # i18n: command names and abbreviations must remain untranslated |
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169 editcomment = _("""# Edit history between %s and %s |
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170 # |
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171 # Commands: |
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172 # p, pick = use commit |
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173 # e, edit = use commit, but stop for amending |
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174 # f, fold = use commit, but fold into previous commit (combines N and N-1) |
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175 # d, drop = remove commit from history |
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176 # m, mess = edit message without changing commit content |
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177 # |
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178 """) |
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179 |
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180 def foldchanges(ui, repo, node1, node2, opts): |
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181 """Produce a new changeset that represents the diff from node1 to node2.""" |
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182 try: |
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183 fd, patchfile = tempfile.mkstemp(prefix='hg-histedit-') |
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184 fp = os.fdopen(fd, 'w') |
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185 diffopts = patch.diffopts(ui, opts) |
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186 diffopts.git = True |
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187 diffopts.ignorews = False |
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188 diffopts.ignorewsamount = False |
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189 diffopts.ignoreblanklines = False |
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190 gen = patch.diff(repo, node1, node2, opts=diffopts) |
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191 for chunk in gen: |
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192 fp.write(chunk) |
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193 fp.close() |
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194 files = set() |
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195 patch.patch(ui, repo, patchfile, files=files, eolmode=None) |
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196 finally: |
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197 os.unlink(patchfile) |
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198 return files |
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199 |
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200 def collapse(repo, first, last, commitopts): |
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201 """collapse the set of revisions from first to last as new one. |
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202 |
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203 Expected commit options are: |
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204 - message |
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205 - date |
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206 - username |
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207 Edition of commit message is trigered in all case. |
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208 |
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209 This function works in memory.""" |
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210 ctxs = list(repo.set('%d::%d', first, last)) |
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211 if not ctxs: |
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212 return None |
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213 base = first.parents()[0] |
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214 |
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215 # commit a new version of the old changeset, including the update |
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216 # collect all files which might be affected |
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217 files = set() |
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218 for ctx in ctxs: |
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219 files.update(ctx.files()) |
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220 |
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221 # Recompute copies (avoid recording a -> b -> a) |
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222 copied = copies.pathcopies(first, last) |
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223 |
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224 # prune files which were reverted by the updates |
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225 def samefile(f): |
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226 if f in last.manifest(): |
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227 a = last.filectx(f) |
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228 if f in base.manifest(): |
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229 b = base.filectx(f) |
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230 return (a.data() == b.data() |
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231 and a.flags() == b.flags()) |
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232 else: |
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233 return False |
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234 else: |
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235 return f not in base.manifest() |
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236 files = [f for f in files if not samefile(f)] |
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237 # commit version of these files as defined by head |
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238 headmf = last.manifest() |
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239 def filectxfn(repo, ctx, path): |
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240 if path in headmf: |
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241 fctx = last[path] |
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242 flags = fctx.flags() |
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243 mctx = context.memfilectx(fctx.path(), fctx.data(), |
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244 islink='l' in flags, |
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245 isexec='x' in flags, |
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246 copied=copied.get(path)) |
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247 return mctx |
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248 raise IOError() |
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249 |
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250 if commitopts.get('message'): |
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251 message = commitopts['message'] |
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252 else: |
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253 message = first.description() |
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254 user = commitopts.get('user') |
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255 date = commitopts.get('date') |
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256 extra = first.extra() |
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257 |
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258 parents = (first.p1().node(), first.p2().node()) |
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259 new = context.memctx(repo, |
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260 parents=parents, |
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261 text=message, |
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262 files=files, |
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263 filectxfn=filectxfn, |
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264 user=user, |
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265 date=date, |
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266 extra=extra) |
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267 new._text = cmdutil.commitforceeditor(repo, new, []) |
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268 return repo.commitctx(new) |
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269 |
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270 def pick(ui, repo, ctx, ha, opts): |
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271 oldctx = repo[ha] |
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272 if oldctx.parents()[0] == ctx: |
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273 ui.debug('node %s unchanged\n' % ha) |
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274 return oldctx, [], [], [] |
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275 hg.update(repo, ctx.node()) |
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276 try: |
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277 files = foldchanges(ui, repo, oldctx.p1().node() , ha, opts) |
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278 if not files: |
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279 ui.warn(_('%s: empty changeset') |
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280 % node.hex(ha)) |
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281 return ctx, [], [], [] |
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282 except Exception: |
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283 raise util.Abort(_('Fix up the change and run ' |
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284 'hg histedit --continue')) |
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285 n = repo.commit(text=oldctx.description(), user=oldctx.user(), |
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286 date=oldctx.date(), extra=oldctx.extra()) |
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287 return repo[n], [n], [oldctx.node()], [] |
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288 |
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289 |
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290 def edit(ui, repo, ctx, ha, opts): |
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291 oldctx = repo[ha] |
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292 hg.update(repo, ctx.node()) |
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293 try: |
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294 foldchanges(ui, repo, oldctx.p1().node() , ha, opts) |
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295 except Exception: |
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296 pass |
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297 raise util.Abort(_('Make changes as needed, you may commit or record as ' |
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298 'needed now.\nWhen you are finished, run hg' |
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299 ' histedit --continue to resume.')) |
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300 |
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301 def fold(ui, repo, ctx, ha, opts): |
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302 oldctx = repo[ha] |
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303 hg.update(repo, ctx.node()) |
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304 try: |
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305 files = foldchanges(ui, repo, oldctx.p1().node() , ha, opts) |
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306 if not files: |
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307 ui.warn(_('%s: empty changeset') |
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308 % node.hex(ha)) |
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309 return ctx, [], [], [] |
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310 except Exception: |
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311 raise util.Abort(_('Fix up the change and run ' |
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312 'hg histedit --continue')) |
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313 n = repo.commit(text='fold-temp-revision %s' % ha, user=oldctx.user(), |
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314 date=oldctx.date(), extra=oldctx.extra()) |
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315 return finishfold(ui, repo, ctx, oldctx, n, opts, []) |
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316 |
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317 def finishfold(ui, repo, ctx, oldctx, newnode, opts, internalchanges): |
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318 parent = ctx.parents()[0].node() |
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319 hg.update(repo, parent) |
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320 ### prepare new commit data |
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321 commitopts = opts.copy() |
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322 # username |
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323 if ctx.user() == oldctx.user(): |
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324 username = ctx.user() |
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325 else: |
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326 username = ui.username() |
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327 commitopts['user'] = username |
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328 # commit message |
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329 newmessage = '\n***\n'.join( |
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330 [ctx.description()] + |
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331 [repo[r].description() for r in internalchanges] + |
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332 [oldctx.description()]) + '\n' |
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333 commitopts['message'] = newmessage |
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334 # date |
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335 commitopts['date'] = max(ctx.date(), oldctx.date()) |
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336 n = collapse(repo, ctx, repo[newnode], commitopts) |
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337 if n is None: |
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338 return ctx, [], [], [] |
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339 hg.update(repo, n) |
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340 return repo[n], [n], [oldctx.node(), ctx.node()], [newnode] |
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341 |
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342 def drop(ui, repo, ctx, ha, opts): |
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343 return ctx, [], [repo[ha].node()], [] |
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344 |
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345 |
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346 def message(ui, repo, ctx, ha, opts): |
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347 oldctx = repo[ha] |
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348 hg.update(repo, ctx.node()) |
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349 try: |
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350 foldchanges(ui, repo, oldctx.p1().node() , ha, opts) |
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351 except Exception: |
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352 raise util.Abort(_('Fix up the change and run ' |
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353 'hg histedit --continue')) |
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354 message = oldctx.description() + '\n' |
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355 message = ui.edit(message, ui.username()) |
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356 new = repo.commit(text=message, user=oldctx.user(), date=oldctx.date(), |
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357 extra=oldctx.extra()) |
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358 newctx = repo[new] |
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359 if oldctx.node() != newctx.node(): |
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360 return newctx, [new], [oldctx.node()], [] |
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361 # We didn't make an edit, so just indicate no replaced nodes |
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362 return newctx, [new], [], [] |
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363 |
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364 actiontable = {'p': pick, |
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365 'pick': pick, |
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366 'e': edit, |
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367 'edit': edit, |
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368 'f': fold, |
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369 'fold': fold, |
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370 'd': drop, |
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371 'drop': drop, |
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372 'm': message, |
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373 'mess': message, |
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374 } |
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375 |
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376 @command('histedit', |
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377 [('', 'commands', '', |
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378 _('Read history edits from the specified file.')), |
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379 ('c', 'continue', False, _('continue an edit already in progress')), |
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380 ('k', 'keep', False, |
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381 _("don't strip old nodes after edit is complete")), |
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382 ('', 'abort', False, _('abort an edit in progress')), |
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383 ('o', 'outgoing', False, _('changesets not found in destination')), |
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384 ('f', 'force', False, |
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385 _('force outgoing even for unrelated repositories')), |
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386 ('r', 'rev', [], _('first revision to be edited'))], |
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387 _("[PARENT]")) |
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388 def histedit(ui, repo, *parent, **opts): |
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389 """interactively edit changeset history |
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390 """ |
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391 # TODO only abort if we try and histedit mq patches, not just |
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392 # blanket if mq patches are applied somewhere |
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393 mq = getattr(repo, 'mq', None) |
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394 if mq and mq.applied: |
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395 raise util.Abort(_('source has mq patches applied')) |
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396 |
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397 parent = list(parent) + opts.get('rev', []) |
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398 if opts.get('outgoing'): |
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399 if len(parent) > 1: |
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400 raise util.Abort( |
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401 _('only one repo argument allowed with --outgoing')) |
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402 elif parent: |
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403 parent = parent[0] |
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404 |
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405 dest = ui.expandpath(parent or 'default-push', parent or 'default') |
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406 dest, revs = hg.parseurl(dest, None)[:2] |
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407 ui.status(_('comparing with %s\n') % util.hidepassword(dest)) |
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408 |
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409 revs, checkout = hg.addbranchrevs(repo, repo, revs, None) |
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410 other = hg.peer(repo, opts, dest) |
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411 |
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412 if revs: |
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413 revs = [repo.lookup(rev) for rev in revs] |
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414 |
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415 parent = discovery.findcommonoutgoing( |
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416 repo, other, [], force=opts.get('force')).missing[0:1] |
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417 else: |
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418 if opts.get('force'): |
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419 raise util.Abort(_('--force only allowed with --outgoing')) |
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420 |
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421 if opts.get('continue', False): |
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422 if len(parent) != 0: |
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423 raise util.Abort(_('no arguments allowed with --continue')) |
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424 (parentctxnode, created, replaced, |
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425 tmpnodes, existing, rules, keep, tip, replacemap) = readstate(repo) |
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426 currentparent, wantnull = repo.dirstate.parents() |
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427 parentctx = repo[parentctxnode] |
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428 # existing is the list of revisions initially considered by |
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429 # histedit. Here we use it to list new changesets, descendants |
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430 # of parentctx without an 'existing' changeset in-between. We |
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431 # also have to exclude 'existing' changesets which were |
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432 # previously dropped. |
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433 descendants = set(c.node() for c in |
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434 repo.set('(%n::) - %n', parentctxnode, parentctxnode)) |
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435 existing = set(existing) |
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436 notdropped = set(n for n in existing if n in descendants and |
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437 (n not in replacemap or replacemap[n] in descendants)) |
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438 # Discover any nodes the user has added in the interim. We can |
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439 # miss changesets which were dropped and recreated the same. |
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440 newchildren = list(c.node() for c in repo.set( |
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441 'sort(%ln - (%ln or %ln::))', descendants, existing, notdropped)) |
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442 action, currentnode = rules.pop(0) |
17242
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443 if action in ('f', 'fold'): |
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444 tmpnodes.extend(newchildren) |
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445 else: |
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446 created.extend(newchildren) |
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447 |
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448 m, a, r, d = repo.status()[:4] |
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449 oldctx = repo[currentnode] |
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histedit: add trailing newline when editing commit messages
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450 message = oldctx.description() + '\n' |
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451 if action in ('e', 'edit', 'm', 'mess'): |
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452 message = ui.edit(message, ui.username()) |
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453 elif action in ('f', 'fold'): |
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454 message = 'fold-temp-revision %s' % currentnode |
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455 new = None |
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456 if m or a or r or d: |
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457 new = repo.commit(text=message, user=oldctx.user(), |
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458 date=oldctx.date(), extra=oldctx.extra()) |
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459 |
17130
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460 # If we're resuming a fold and we have new changes, mark the |
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461 # replacements and finish the fold. If not, it's more like a |
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462 # drop of the changesets that disappeared, and we can skip |
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463 # this step. |
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464 if action in ('f', 'fold') and (new or newchildren): |
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465 if new: |
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|
466 tmpnodes.append(new) |
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467 else: |
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468 new = newchildren[-1] |
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469 (parentctx, created_, replaced_, tmpnodes_) = finishfold( |
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470 ui, repo, parentctx, oldctx, new, opts, newchildren) |
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471 replaced.extend(replaced_) |
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472 created.extend(created_) |
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473 tmpnodes.extend(tmpnodes_) |
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474 elif action not in ('d', 'drop'): |
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475 if new != oldctx.node(): |
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476 replaced.append(oldctx.node()) |
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477 if new: |
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478 if new != oldctx.node(): |
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479 created.append(new) |
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480 parentctx = repo[new] |
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481 |
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482 elif opts.get('abort', False): |
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483 if len(parent) != 0: |
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484 raise util.Abort(_('no arguments allowed with --abort')) |
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485 (parentctxnode, created, replaced, tmpnodes, |
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486 existing, rules, keep, tip, replacemap) = readstate(repo) |
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487 ui.debug('restore wc to old tip %s\n' % node.hex(tip)) |
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488 hg.clean(repo, tip) |
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489 ui.debug('should strip created nodes %s\n' % |
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490 ', '.join([node.hex(n)[:12] for n in created])) |
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491 ui.debug('should strip temp nodes %s\n' % |
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492 ', '.join([node.hex(n)[:12] for n in tmpnodes])) |
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493 for nodes in (created, tmpnodes): |
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494 lock = None |
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495 try: |
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496 lock = repo.lock() |
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497 for n in reversed(nodes): |
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498 try: |
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499 repair.strip(ui, repo, n) |
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500 except error.LookupError: |
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501 pass |
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502 finally: |
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503 lockmod.release(lock) |
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504 os.unlink(os.path.join(repo.path, 'histedit-state')) |
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505 return |
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506 else: |
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507 cmdutil.bailifchanged(repo) |
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508 if os.path.exists(os.path.join(repo.path, 'histedit-state')): |
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509 raise util.Abort(_('history edit already in progress, try ' |
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510 '--continue or --abort')) |
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511 |
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512 tip, empty = repo.dirstate.parents() |
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513 |
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514 |
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515 if len(parent) != 1: |
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516 raise util.Abort(_('histedit requires exactly one parent revision')) |
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517 parent = scmutil.revsingle(repo, parent[0]).node() |
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518 |
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519 keep = opts.get('keep', False) |
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520 revs = between(repo, parent, tip, keep) |
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521 |
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522 ctxs = [repo[r] for r in revs] |
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523 existing = [r.node() for r in ctxs] |
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524 rules = opts.get('commands', '') |
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525 if not rules: |
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diff
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526 rules = '\n'.join([makedesc(c) for c in ctxs]) |
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
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527 rules += '\n\n' |
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528 rules += editcomment % (node.hex(parent)[:12], node.hex(tip)[:12]) |
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529 rules = ui.edit(rules, ui.username()) |
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530 # Save edit rules in .hg/histedit-last-edit.txt in case |
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531 # the user needs to ask for help after something |
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532 # surprising happens. |
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533 f = open(repo.join('histedit-last-edit.txt'), 'w') |
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534 f.write(rules) |
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|
535 f.close() |
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|
536 else: |
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|
537 f = open(rules) |
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538 rules = f.read() |
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539 f.close() |
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|
540 rules = [l for l in (r.strip() for r in rules.splitlines()) |
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parents:
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|
541 if l and not l[0] == '#'] |
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542 rules = verifyrules(rules, repo, ctxs) |
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Augie Fackler <raf@durin42.com>
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|
543 |
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544 parentctx = repo[parent].parents()[0] |
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545 keep = opts.get('keep', False) |
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546 replaced = [] |
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|
547 replacemap = {} |
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548 tmpnodes = [] |
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Augie Fackler <raf@durin42.com>
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|
549 created = [] |
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|
550 |
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|
551 |
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Augie Fackler <raf@durin42.com>
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diff
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|
552 while rules: |
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553 writestate(repo, parentctx.node(), created, replaced, |
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554 tmpnodes, existing, rules, keep, tip, replacemap) |
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parents:
diff
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|
555 action, ha = rules.pop(0) |
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parents:
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diff
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556 (parentctx, created_, replaced_, tmpnodes_) = actiontable[action]( |
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Augie Fackler <raf@durin42.com>
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557 ui, repo, parentctx, ha, opts) |
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|
558 |
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|
559 if replaced_: |
168cc52ad7c2
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|
560 clen, rlen = len(created_), len(replaced_) |
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diff
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|
561 if clen == rlen == 1: |
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parents:
diff
changeset
|
562 ui.debug('histedit: exact replacement of %s with %s\n' % ( |
17129
ead4eb5b03c9
histedit: replace hexshort lambda with node.short
Augie Fackler <raf@durin42.com>
parents:
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diff
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|
563 node.short(replaced_[0]), node.short(created_[0]))) |
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|
564 |
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diff
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|
565 replacemap[replaced_[0]] = created_[0] |
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|
566 elif clen > rlen: |
168cc52ad7c2
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Augie Fackler <raf@durin42.com>
parents:
diff
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|
567 assert rlen == 1, ('unexpected replacement of ' |
168cc52ad7c2
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Augie Fackler <raf@durin42.com>
parents:
diff
changeset
|
568 '%d changes with %d changes' % (rlen, clen)) |
168cc52ad7c2
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Augie Fackler <raf@durin42.com>
parents:
diff
changeset
|
569 # made more changesets than we're replacing |
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Augie Fackler <raf@durin42.com>
parents:
diff
changeset
|
570 # TODO synthesize patch names for created patches |
168cc52ad7c2
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Augie Fackler <raf@durin42.com>
parents:
diff
changeset
|
571 replacemap[replaced_[0]] = created_[-1] |
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Augie Fackler <raf@durin42.com>
parents:
17064
diff
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|
572 ui.debug('histedit: created many, assuming %s replaced by %s' % |
17129
ead4eb5b03c9
histedit: replace hexshort lambda with node.short
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parents:
17084
diff
changeset
|
573 (node.short(replaced_[0]), node.short(created_[-1]))) |
17064
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Augie Fackler <raf@durin42.com>
parents:
diff
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|
574 elif rlen > clen: |
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Augie Fackler <raf@durin42.com>
parents:
diff
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|
575 if not created_: |
168cc52ad7c2
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Augie Fackler <raf@durin42.com>
parents:
diff
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|
576 # This must be a drop. Try and put our metadata on |
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Augie Fackler <raf@durin42.com>
parents:
diff
changeset
|
577 # the parent change. |
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diff
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|
578 assert rlen == 1 |
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Augie Fackler <raf@durin42.com>
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diff
changeset
|
579 r = replaced_[0] |
168cc52ad7c2
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Augie Fackler <raf@durin42.com>
parents:
diff
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|
580 ui.debug('histedit: %s seems replaced with nothing, ' |
17129
ead4eb5b03c9
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Augie Fackler <raf@durin42.com>
parents:
17084
diff
changeset
|
581 'finding a parent\n' % (node.short(r))) |
17064
168cc52ad7c2
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Augie Fackler <raf@durin42.com>
parents:
diff
changeset
|
582 pctx = repo[r].parents()[0] |
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Augie Fackler <raf@durin42.com>
parents:
diff
changeset
|
583 if pctx.node() in replacemap: |
168cc52ad7c2
histedit: new extension for interactive history editing
Augie Fackler <raf@durin42.com>
parents:
diff
changeset
|
584 ui.debug('histedit: parent is already replaced\n') |
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histedit: new extension for interactive history editing
Augie Fackler <raf@durin42.com>
parents:
diff
changeset
|
585 replacemap[r] = replacemap[pctx.node()] |
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Augie Fackler <raf@durin42.com>
parents:
diff
changeset
|
586 else: |
168cc52ad7c2
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Augie Fackler <raf@durin42.com>
parents:
diff
changeset
|
587 replacemap[r] = pctx.node() |
168cc52ad7c2
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parents:
diff
changeset
|
588 ui.debug('histedit: %s best replaced by %s\n' % ( |
17129
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Augie Fackler <raf@durin42.com>
parents:
17084
diff
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589 node.short(r), node.short(replacemap[r]))) |
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590 else: |
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591 assert len(created_) == 1 |
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592 for r in replaced_: |
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593 ui.debug('histedit: %s replaced by %s\n' % ( |
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594 node.short(r), node.short(created_[0]))) |
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595 replacemap[r] = created_[0] |
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596 else: |
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597 assert False, ( |
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598 'Unhandled case in replacement mapping! ' |
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599 'replacing %d changes with %d changes' % (rlen, clen)) |
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600 created.extend(created_) |
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601 replaced.extend(replaced_) |
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602 tmpnodes.extend(tmpnodes_) |
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603 |
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604 hg.update(repo, parentctx.node()) |
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605 |
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606 if not keep: |
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607 if replacemap: |
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608 ui.note(_('histedit: Should update metadata for the following ' |
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609 'changes:\n')) |
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610 |
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611 def copybms(old, new): |
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612 if old in tmpnodes or old in created: |
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613 # can't have any metadata we'd want to update |
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614 return |
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615 while new in replacemap: |
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616 new = replacemap[new] |
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617 ui.note(_('histedit: %s to %s\n') % (node.short(old), |
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618 node.short(new))) |
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619 octx = repo[old] |
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620 marks = octx.bookmarks() |
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621 if marks: |
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622 ui.note(_('histedit: moving bookmarks %s\n') % |
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623 ', '.join(marks)) |
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624 for mark in marks: |
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625 repo._bookmarks[mark] = new |
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626 bookmarks.write(repo) |
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627 |
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628 # We assume that bookmarks on the tip should remain |
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629 # tipmost, but bookmarks on non-tip changesets should go |
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630 # to their most reasonable successor. As a result, find |
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631 # the old tip and new tip and copy those bookmarks first, |
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632 # then do the rest of the bookmark copies. |
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633 oldtip = sorted(replacemap.keys(), key=repo.changelog.rev)[-1] |
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634 newtip = sorted(replacemap.values(), key=repo.changelog.rev)[-1] |
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635 copybms(oldtip, newtip) |
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636 |
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637 for old, new in sorted(replacemap.iteritems()): |
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638 copybms(old, new) |
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639 # TODO update mq state |
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640 |
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641 ui.debug('should strip replaced nodes %s\n' % |
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642 ', '.join([node.hex(n)[:12] for n in replaced])) |
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643 lock = None |
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644 try: |
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645 lock = repo.lock() |
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646 for n in sorted(replaced, key=lambda x: repo[x].rev()): |
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647 try: |
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648 repair.strip(ui, repo, n) |
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649 except error.LookupError: |
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650 pass |
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651 finally: |
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652 lockmod.release(lock) |
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653 |
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654 ui.debug('should strip temp nodes %s\n' % |
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655 ', '.join([node.hex(n)[:12] for n in tmpnodes])) |
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656 lock = None |
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657 try: |
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658 lock = repo.lock() |
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659 for n in reversed(tmpnodes): |
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660 try: |
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661 repair.strip(ui, repo, n) |
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662 except error.LookupError: |
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663 pass |
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664 finally: |
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665 lockmod.release(lock) |
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666 os.unlink(os.path.join(repo.path, 'histedit-state')) |
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667 if os.path.exists(repo.sjoin('undo')): |
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668 os.unlink(repo.sjoin('undo')) |
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669 |
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670 |
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671 def between(repo, old, new, keep): |
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672 """select and validate the set of revision to edit |
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673 |
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674 When keep is false, the specified set can't have children.""" |
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675 revs = [old] |
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676 current = old |
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677 while current != new: |
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678 ctx = repo[current] |
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679 if not keep and len(ctx.children()) > 1: |
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680 raise util.Abort(_('cannot edit history that would orphan nodes')) |
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681 if len(ctx.parents()) != 1 and ctx.parents()[1] != node.nullid: |
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682 raise util.Abort(_("can't edit history with merges")) |
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683 if not ctx.children(): |
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684 current = new |
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685 else: |
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686 current = ctx.children()[0].node() |
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687 revs.append(current) |
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688 if len(repo[current].children()) and not keep: |
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689 raise util.Abort(_('cannot edit history that would orphan nodes')) |
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690 return revs |
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691 |
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692 |
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693 def writestate(repo, parentctxnode, created, replaced, |
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694 tmpnodes, existing, rules, keep, oldtip, replacemap): |
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695 fp = open(os.path.join(repo.path, 'histedit-state'), 'w') |
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696 pickle.dump((parentctxnode, created, replaced, |
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697 tmpnodes, existing, rules, keep, oldtip, replacemap), |
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698 fp) |
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699 fp.close() |
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700 |
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701 def readstate(repo): |
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702 """Returns a tuple of (parentnode, created, replaced, tmp, existing, rules, |
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703 keep, oldtip, replacemap ). |
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704 """ |
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705 fp = open(os.path.join(repo.path, 'histedit-state')) |
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706 return pickle.load(fp) |
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707 |
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708 |
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709 def makedesc(c): |
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710 """build a initial action line for a ctx `c` |
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711 |
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712 line are in the form: |
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713 |
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714 pick <hash> <rev> <summary> |
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715 """ |
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716 summary = '' |
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717 if c.description(): |
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718 summary = c.description().splitlines()[0] |
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719 line = 'pick %s %d %s' % (c.hex()[:12], c.rev(), summary) |
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720 return line[:80] # trim to 80 chars so it's not stupidly wide in my editor |
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721 |
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722 def verifyrules(rules, repo, ctxs): |
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723 """Verify that there exists exactly one edit rule per given changeset. |
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724 |
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725 Will abort if there are to many or too few rules, a malformed rule, |
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726 or a rule on a changeset outside of the user-given range. |
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727 """ |
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728 parsed = [] |
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729 if len(rules) != len(ctxs): |
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730 raise util.Abort(_('must specify a rule for each changeset once')) |
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731 for r in rules: |
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732 if ' ' not in r: |
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733 raise util.Abort(_('malformed line "%s"') % r) |
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734 action, rest = r.split(' ', 1) |
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735 if ' ' in rest.strip(): |
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736 ha, rest = rest.split(' ', 1) |
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737 else: |
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738 ha = r.strip() |
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739 try: |
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740 if repo[ha] not in ctxs: |
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741 raise util.Abort( |
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742 _('may not use changesets other than the ones listed')) |
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743 except error.RepoError: |
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744 raise util.Abort(_('unknown changeset %s listed') % ha) |
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745 if action not in actiontable: |
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746 raise util.Abort(_('unknown action "%s"') % action) |
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747 parsed.append([action, ha]) |
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748 return parsed |