Mercurial > hg
annotate hgext/histedit.py @ 17941:9a6e4d5d7ea8
diff: move diffline to patch module
diffline is not part of diff computation, so it makes more sense
to place it with other header generation in patch module.
In upcoming patches we will generalize this approach for
all headers added in the patch, including the git index
header.
author | Guillermo Pérez <bisho@fb.com> |
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date | Thu, 15 Nov 2012 12:19:03 -0800 |
parents | 7f5dab94e48c |
children | 0f5a0a2073a8 |
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 os |
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146 |
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147 from mercurial import cmdutil |
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148 from mercurial import discovery |
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149 from mercurial import error |
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150 from mercurial import copies |
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151 from mercurial import context |
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152 from mercurial import hg |
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153 from mercurial import lock as lockmod |
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154 from mercurial import node |
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155 from mercurial import repair |
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156 from mercurial import scmutil |
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157 from mercurial import util |
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158 from mercurial import obsolete |
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159 from mercurial import merge as mergemod |
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160 from mercurial.i18n import _ |
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161 |
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162 cmdtable = {} |
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163 command = cmdutil.command(cmdtable) |
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164 |
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165 testedwith = 'internal' |
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166 |
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167 # i18n: command names and abbreviations must remain untranslated |
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168 editcomment = _("""# Edit history between %s and %s |
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169 # |
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170 # Commands: |
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171 # p, pick = use commit |
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172 # e, edit = use commit, but stop for amending |
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173 # f, fold = use commit, but fold into previous commit (combines N and N-1) |
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174 # d, drop = remove commit from history |
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175 # m, mess = edit message without changing commit content |
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176 # |
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177 """) |
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178 |
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179 def applychanges(ui, repo, ctx, opts): |
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180 """Merge changeset from ctx (only) in the current working directory""" |
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181 wcpar = repo.dirstate.parents()[0] |
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182 if ctx.p1().node() == wcpar: |
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183 # edition ar "in place" we do not need to make any merge, |
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184 # just applies changes on parent for edition |
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185 cmdutil.revert(ui, repo, ctx, (wcpar, node.nullid), all=True) |
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186 stats = None |
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187 else: |
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188 try: |
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189 # ui.forcemerge is an internal variable, do not document |
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190 repo.ui.setconfig('ui', 'forcemerge', opts.get('tool', '')) |
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191 stats = mergemod.update(repo, ctx.node(), True, True, False, |
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192 ctx.p1().node()) |
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193 finally: |
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194 repo.ui.setconfig('ui', 'forcemerge', '') |
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195 repo.setparents(wcpar, node.nullid) |
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196 repo.dirstate.write() |
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197 # fix up dirstate for copies and renames |
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198 cmdutil.duplicatecopies(repo, ctx.rev(), ctx.p1().rev()) |
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199 return stats |
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200 |
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201 def collapse(repo, first, last, commitopts): |
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202 """collapse the set of revisions from first to last as new one. |
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203 |
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204 Expected commit options are: |
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205 - message |
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206 - date |
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207 - username |
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208 Commit message is edited in all cases. |
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209 |
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210 This function works in memory.""" |
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211 ctxs = list(repo.set('%d::%d', first, last)) |
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212 if not ctxs: |
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213 return None |
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214 base = first.parents()[0] |
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215 |
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216 # commit a new version of the old changeset, including the update |
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217 # collect all files which might be affected |
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218 files = set() |
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219 for ctx in ctxs: |
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220 files.update(ctx.files()) |
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221 |
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222 # Recompute copies (avoid recording a -> b -> a) |
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223 copied = copies.pathcopies(first, last) |
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224 |
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225 # prune files which were reverted by the updates |
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226 def samefile(f): |
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227 if f in last.manifest(): |
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228 a = last.filectx(f) |
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229 if f in base.manifest(): |
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230 b = base.filectx(f) |
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231 return (a.data() == b.data() |
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232 and a.flags() == b.flags()) |
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233 else: |
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234 return False |
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235 else: |
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236 return f not in base.manifest() |
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237 files = [f for f in files if not samefile(f)] |
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238 # commit version of these files as defined by head |
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239 headmf = last.manifest() |
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240 def filectxfn(repo, ctx, path): |
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241 if path in headmf: |
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242 fctx = last[path] |
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243 flags = fctx.flags() |
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244 mctx = context.memfilectx(fctx.path(), fctx.data(), |
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245 islink='l' in flags, |
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246 isexec='x' in flags, |
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247 copied=copied.get(path)) |
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248 return mctx |
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249 raise IOError() |
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250 |
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251 if commitopts.get('message'): |
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252 message = commitopts['message'] |
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253 else: |
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254 message = first.description() |
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255 user = commitopts.get('user') |
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256 date = commitopts.get('date') |
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257 extra = first.extra() |
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258 |
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259 parents = (first.p1().node(), first.p2().node()) |
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260 new = context.memctx(repo, |
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261 parents=parents, |
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262 text=message, |
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263 files=files, |
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264 filectxfn=filectxfn, |
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265 user=user, |
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266 date=date, |
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267 extra=extra) |
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268 new._text = cmdutil.commitforceeditor(repo, new, []) |
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269 return repo.commitctx(new) |
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270 |
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271 def pick(ui, repo, ctx, ha, opts): |
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272 oldctx = repo[ha] |
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273 if oldctx.parents()[0] == ctx: |
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274 ui.debug('node %s unchanged\n' % ha) |
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275 return oldctx, [] |
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276 hg.update(repo, ctx.node()) |
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277 stats = applychanges(ui, repo, oldctx, opts) |
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278 if stats and stats[3] > 0: |
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279 raise util.Abort(_('Fix up the change and run ' |
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280 'hg histedit --continue')) |
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281 # drop the second merge parent |
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282 n = repo.commit(text=oldctx.description(), user=oldctx.user(), |
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283 date=oldctx.date(), extra=oldctx.extra()) |
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284 if n is None: |
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285 ui.warn(_('%s: empty changeset\n') |
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286 % node.hex(ha)) |
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287 return ctx, [] |
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288 new = repo[n] |
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289 return new, [(oldctx.node(), (n,))] |
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290 |
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291 |
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292 def edit(ui, repo, ctx, ha, opts): |
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293 oldctx = repo[ha] |
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294 hg.update(repo, ctx.node()) |
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295 applychanges(ui, repo, oldctx, opts) |
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296 raise util.Abort(_('Make changes as needed, you may commit or record as ' |
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297 'needed now.\nWhen you are finished, run hg' |
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298 ' histedit --continue to resume.')) |
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299 |
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300 def fold(ui, repo, ctx, ha, opts): |
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301 oldctx = repo[ha] |
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302 hg.update(repo, ctx.node()) |
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303 stats = applychanges(ui, repo, oldctx, opts) |
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304 if stats and stats[3] > 0: |
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305 raise util.Abort(_('Fix up the change and run ' |
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306 'hg histedit --continue')) |
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307 n = repo.commit(text='fold-temp-revision %s' % ha, user=oldctx.user(), |
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308 date=oldctx.date(), extra=oldctx.extra()) |
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309 if n is None: |
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310 ui.warn(_('%s: empty changeset') |
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311 % node.hex(ha)) |
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312 return ctx, [] |
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313 return finishfold(ui, repo, ctx, oldctx, n, opts, []) |
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314 |
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315 def finishfold(ui, repo, ctx, oldctx, newnode, opts, internalchanges): |
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316 parent = ctx.parents()[0].node() |
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317 hg.update(repo, parent) |
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318 ### prepare new commit data |
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319 commitopts = opts.copy() |
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320 # username |
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321 if ctx.user() == oldctx.user(): |
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322 username = ctx.user() |
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323 else: |
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324 username = ui.username() |
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325 commitopts['user'] = username |
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326 # commit message |
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327 newmessage = '\n***\n'.join( |
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328 [ctx.description()] + |
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329 [repo[r].description() for r in internalchanges] + |
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330 [oldctx.description()]) + '\n' |
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331 commitopts['message'] = newmessage |
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332 # date |
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333 commitopts['date'] = max(ctx.date(), oldctx.date()) |
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334 n = collapse(repo, ctx, repo[newnode], commitopts) |
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335 if n is None: |
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336 return ctx, [] |
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337 hg.update(repo, n) |
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338 replacements = [(oldctx.node(), (newnode,)), |
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339 (ctx.node(), (n,)), |
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340 (newnode, (n,)), |
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341 ] |
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342 for ich in internalchanges: |
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343 replacements.append((ich, (n,))) |
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344 return repo[n], replacements |
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345 |
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346 def drop(ui, repo, ctx, ha, opts): |
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347 return ctx, [(repo[ha].node(), ())] |
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348 |
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349 |
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350 def message(ui, repo, ctx, ha, opts): |
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351 oldctx = repo[ha] |
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352 hg.update(repo, ctx.node()) |
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353 stats = applychanges(ui, repo, oldctx, opts) |
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354 if stats and stats[3] > 0: |
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355 raise util.Abort(_('Fix up the change and run ' |
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356 'hg histedit --continue')) |
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357 message = oldctx.description() + '\n' |
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358 message = ui.edit(message, ui.username()) |
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359 new = repo.commit(text=message, user=oldctx.user(), date=oldctx.date(), |
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360 extra=oldctx.extra()) |
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361 newctx = repo[new] |
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362 if oldctx.node() != newctx.node(): |
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363 return newctx, [(oldctx.node(), (new,))] |
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364 # We didn't make an edit, so just indicate no replaced nodes |
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365 return newctx, [] |
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366 |
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367 actiontable = {'p': pick, |
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368 'pick': pick, |
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369 'e': edit, |
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370 'edit': edit, |
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371 'f': fold, |
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372 'fold': fold, |
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373 'd': drop, |
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374 'drop': drop, |
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375 'm': message, |
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376 'mess': message, |
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377 } |
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378 |
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379 @command('histedit', |
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380 [('', 'commands', '', |
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381 _('Read history edits from the specified file.')), |
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382 ('c', 'continue', False, _('continue an edit already in progress')), |
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383 ('k', 'keep', False, |
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384 _("don't strip old nodes after edit is complete")), |
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385 ('', 'abort', False, _('abort an edit in progress')), |
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386 ('o', 'outgoing', False, _('changesets not found in destination')), |
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387 ('f', 'force', False, |
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388 _('force outgoing even for unrelated repositories')), |
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389 ('r', 'rev', [], _('first revision to be edited'))], |
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390 _("[PARENT]")) |
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391 def histedit(ui, repo, *parent, **opts): |
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392 """interactively edit changeset history |
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393 """ |
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394 # TODO only abort if we try and histedit mq patches, not just |
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395 # blanket if mq patches are applied somewhere |
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396 mq = getattr(repo, 'mq', None) |
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397 if mq and mq.applied: |
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398 raise util.Abort(_('source has mq patches applied')) |
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399 |
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400 parent = list(parent) + opts.get('rev', []) |
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401 if opts.get('outgoing'): |
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402 if len(parent) > 1: |
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403 raise util.Abort( |
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404 _('only one repo argument allowed with --outgoing')) |
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405 elif parent: |
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406 parent = parent[0] |
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407 |
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408 dest = ui.expandpath(parent or 'default-push', parent or 'default') |
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409 dest, revs = hg.parseurl(dest, None)[:2] |
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410 ui.status(_('comparing with %s\n') % util.hidepassword(dest)) |
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411 |
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412 revs, checkout = hg.addbranchrevs(repo, repo, revs, None) |
17191
5884812686f7
peer: introduce peer methods to prepare for peer classes
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413 other = hg.peer(repo, opts, dest) |
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414 |
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415 if revs: |
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416 revs = [repo.lookup(rev) for rev in revs] |
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417 |
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418 parent = discovery.findcommonoutgoing( |
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419 repo, other, [], force=opts.get('force')).missing[0:1] |
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420 else: |
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421 if opts.get('force'): |
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422 raise util.Abort(_('--force only allowed with --outgoing')) |
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423 |
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424 if opts.get('continue', False): |
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425 if len(parent) != 0: |
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426 raise util.Abort(_('no arguments allowed with --continue')) |
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427 (parentctxnode, rules, keep, topmost, replacements) = readstate(repo) |
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428 currentparent, wantnull = repo.dirstate.parents() |
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429 parentctx = repo[parentctxnode] |
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430 parentctx, repl = bootstrapcontinue(ui, repo, parentctx, rules, opts) |
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431 replacements.extend(repl) |
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432 elif opts.get('abort', False): |
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433 if len(parent) != 0: |
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434 raise util.Abort(_('no arguments allowed with --abort')) |
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435 (parentctxnode, rules, keep, topmost, replacements) = readstate(repo) |
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436 mapping, tmpnodes, leafs, _ntm = processreplacement(repo, replacements) |
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437 ui.debug('restore wc to old parent %s\n' % node.short(topmost)) |
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438 hg.clean(repo, topmost) |
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439 cleanupnode(ui, repo, 'created', tmpnodes) |
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440 cleanupnode(ui, repo, 'temp', leafs) |
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441 os.unlink(os.path.join(repo.path, 'histedit-state')) |
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442 return |
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443 else: |
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444 cmdutil.bailifchanged(repo) |
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445 if os.path.exists(os.path.join(repo.path, 'histedit-state')): |
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446 raise util.Abort(_('history edit already in progress, try ' |
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447 '--continue or --abort')) |
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448 |
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449 topmost, empty = repo.dirstate.parents() |
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450 |
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451 if len(parent) != 1: |
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452 raise util.Abort(_('histedit requires exactly one parent revision')) |
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453 parent = scmutil.revsingle(repo, parent[0]).node() |
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454 |
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455 keep = opts.get('keep', False) |
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456 revs = between(repo, parent, topmost, keep) |
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457 if not revs: |
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458 ui.warn(_('nothing to edit\n')) |
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459 return 1 |
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460 |
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461 ctxs = [repo[r] for r in revs] |
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462 rules = opts.get('commands', '') |
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463 if not rules: |
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464 rules = '\n'.join([makedesc(c) for c in ctxs]) |
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465 rules += '\n\n' |
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466 rules += editcomment % (node.short(parent), node.short(topmost)) |
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467 rules = ui.edit(rules, ui.username()) |
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468 # Save edit rules in .hg/histedit-last-edit.txt in case |
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469 # the user needs to ask for help after something |
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470 # surprising happens. |
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471 f = open(repo.join('histedit-last-edit.txt'), 'w') |
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472 f.write(rules) |
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473 f.close() |
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474 else: |
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475 f = open(rules) |
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476 rules = f.read() |
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477 f.close() |
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478 rules = [l for l in (r.strip() for r in rules.splitlines()) |
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479 if l and not l[0] == '#'] |
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480 rules = verifyrules(rules, repo, ctxs) |
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481 |
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482 parentctx = repo[parent].parents()[0] |
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483 keep = opts.get('keep', False) |
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484 replacements = [] |
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485 |
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486 |
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487 while rules: |
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488 writestate(repo, parentctx.node(), rules, keep, topmost, replacements) |
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489 action, ha = rules.pop(0) |
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490 ui.debug('histedit: processing %s %s\n' % (action, ha)) |
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491 actfunc = actiontable[action] |
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492 parentctx, replacement_ = actfunc(ui, repo, parentctx, ha, opts) |
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493 replacements.extend(replacement_) |
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494 |
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495 hg.update(repo, parentctx.node()) |
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496 |
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497 mapping, tmpnodes, created, ntm = processreplacement(repo, replacements) |
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498 if mapping: |
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499 for prec, succs in mapping.iteritems(): |
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500 if not succs: |
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501 ui.debug('histedit: %s is dropped\n' % node.short(prec)) |
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502 else: |
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503 ui.debug('histedit: %s is replaced by %s\n' % ( |
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504 node.short(prec), node.short(succs[0]))) |
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505 if len(succs) > 1: |
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506 m = 'histedit: %s' |
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507 for n in succs[1:]: |
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508 ui.debug(m % node.short(n)) |
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509 |
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510 if not keep: |
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511 if mapping: |
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512 movebookmarks(ui, repo, mapping, topmost, ntm) |
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513 # TODO update mq state |
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514 if obsolete._enabled: |
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515 markers = [] |
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516 # sort by revision number because it sound "right" |
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517 for prec in sorted(mapping, key=repo.changelog.rev): |
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518 succs = mapping[prec] |
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519 markers.append((repo[prec], |
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520 tuple(repo[s] for s in succs))) |
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521 if markers: |
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522 obsolete.createmarkers(repo, markers) |
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523 else: |
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524 cleanupnode(ui, repo, 'replaced', mapping) |
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525 |
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526 cleanupnode(ui, repo, 'temp', tmpnodes) |
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527 os.unlink(os.path.join(repo.path, 'histedit-state')) |
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528 if os.path.exists(repo.sjoin('undo')): |
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529 os.unlink(repo.sjoin('undo')) |
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530 |
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531 |
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532 def bootstrapcontinue(ui, repo, parentctx, rules, opts): |
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533 action, currentnode = rules.pop(0) |
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534 ctx = repo[currentnode] |
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535 # is there any new commit between the expected parent and "." |
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536 # |
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537 # note: does not take non linear new change in account (but previous |
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538 # implementation didn't used them anyway (issue3655) |
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539 newchildren = [c.node() for c in repo.set('(%d::.)', parentctx)] |
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540 if not newchildren: |
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541 # `parentctxnode` should match but no result. This means that |
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542 # currentnode is not a descendant from parentctxnode. |
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543 msg = _('working directory parent is not a descendant of %s') |
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544 hint = _('update to %s or descendant and run "hg histedit ' |
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545 '--continue" again') % parentctx |
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546 raise util.Abort(msg % parentctx, hint=hint) |
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547 newchildren.pop(0) # remove parentctxnode |
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548 # Commit dirty working directory if necessary |
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549 new = None |
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550 m, a, r, d = repo.status()[:4] |
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551 if m or a or r or d: |
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552 # prepare the message for the commit to comes |
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553 if action in ('f', 'fold'): |
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554 message = 'fold-temp-revision %s' % currentnode |
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555 else: |
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556 message = ctx.description() + '\n' |
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557 if action in ('e', 'edit', 'm', 'mess'): |
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558 editor = cmdutil.commitforceeditor |
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559 else: |
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560 editor = False |
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561 new = repo.commit(text=message, user=ctx.user(), |
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562 date=ctx.date(), extra=ctx.extra(), |
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563 editor=editor) |
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564 if new is not None: |
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565 newchildren.append(new) |
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566 |
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567 replacements = [] |
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568 # track replacements |
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569 if ctx.node() not in newchildren: |
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570 # note: new children may be empty when the changeset is dropped. |
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571 # this happen e.g during conflicting pick where we revert content |
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572 # to parent. |
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573 replacements.append((ctx.node(), tuple(newchildren))) |
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574 |
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575 if action in ('f', 'fold'): |
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576 # finalize fold operation if applicable |
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577 if new is None: |
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578 new = newchildren[-1] |
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579 else: |
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580 newchildren.pop() # remove new from internal changes |
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581 parentctx, repl = finishfold(ui, repo, parentctx, ctx, new, opts, |
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582 newchildren) |
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583 replacements.extend(repl) |
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584 elif newchildren: |
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585 # otherwize update "parentctx" before proceding to further operation |
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586 parentctx = repo[newchildren[-1]] |
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587 return parentctx, replacements |
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588 |
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589 |
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590 def between(repo, old, new, keep): |
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591 """select and validate the set of revision to edit |
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592 |
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593 When keep is false, the specified set can't have children.""" |
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594 ctxs = list(repo.set('%n::%n', old, new)) |
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595 if ctxs and not keep: |
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596 if repo.revs('(%ld::) - (%ld + hidden())', ctxs, ctxs): |
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597 raise util.Abort(_('cannot edit history that would orphan nodes')) |
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598 root = ctxs[0] # list is already sorted by repo.set |
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599 if not root.phase(): |
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600 raise util.Abort(_('cannot edit immutable changeset: %s') % root) |
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601 return [c.node() for c in ctxs] |
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602 |
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603 |
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604 def writestate(repo, parentnode, rules, keep, topmost, replacements): |
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605 fp = open(os.path.join(repo.path, 'histedit-state'), 'w') |
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606 pickle.dump((parentnode, rules, keep, topmost, replacements), fp) |
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607 fp.close() |
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608 |
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609 def readstate(repo): |
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610 """Returns a tuple of (parentnode, rules, keep, topmost, replacements). |
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611 """ |
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612 fp = open(os.path.join(repo.path, 'histedit-state')) |
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613 return pickle.load(fp) |
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614 |
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615 |
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616 def makedesc(c): |
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617 """build a initial action line for a ctx `c` |
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618 |
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619 line are in the form: |
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620 |
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621 pick <hash> <rev> <summary> |
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622 """ |
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623 summary = '' |
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624 if c.description(): |
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625 summary = c.description().splitlines()[0] |
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626 line = 'pick %s %d %s' % (c, c.rev(), summary) |
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627 return line[:80] # trim to 80 chars so it's not stupidly wide in my editor |
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628 |
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629 def verifyrules(rules, repo, ctxs): |
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630 """Verify that there exists exactly one edit rule per given changeset. |
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631 |
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632 Will abort if there are to many or too few rules, a malformed rule, |
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633 or a rule on a changeset outside of the user-given range. |
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634 """ |
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635 parsed = [] |
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636 if len(rules) != len(ctxs): |
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637 raise util.Abort(_('must specify a rule for each changeset once')) |
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638 for r in rules: |
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639 if ' ' not in r: |
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640 raise util.Abort(_('malformed line "%s"') % r) |
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641 action, rest = r.split(' ', 1) |
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642 if ' ' in rest.strip(): |
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643 ha, rest = rest.split(' ', 1) |
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644 else: |
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645 ha = r.strip() |
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646 try: |
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647 if repo[ha] not in ctxs: |
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648 raise util.Abort( |
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649 _('may not use changesets other than the ones listed')) |
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650 except error.RepoError: |
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651 raise util.Abort(_('unknown changeset %s listed') % ha) |
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652 if action not in actiontable: |
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653 raise util.Abort(_('unknown action "%s"') % action) |
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654 parsed.append([action, ha]) |
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655 return parsed |
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656 |
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657 def processreplacement(repo, replacements): |
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658 """process the list of replacements to return |
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659 |
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660 1) the final mapping between original and created nodes |
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661 2) the list of temporary node created by histedit |
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662 3) the list of new commit created by histedit""" |
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663 allsuccs = set() |
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664 replaced = set() |
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665 fullmapping = {} |
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666 # initialise basic set |
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667 # fullmapping record all operation recorded in replacement |
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668 for rep in replacements: |
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669 allsuccs.update(rep[1]) |
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670 replaced.add(rep[0]) |
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671 fullmapping.setdefault(rep[0], set()).update(rep[1]) |
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672 new = allsuccs - replaced |
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673 tmpnodes = allsuccs & replaced |
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674 # Reduce content fullmapping into direct relation between original nodes |
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675 # and final node created during history edition |
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676 # Dropped changeset are replaced by an empty list |
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677 toproceed = set(fullmapping) |
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678 final = {} |
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679 while toproceed: |
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680 for x in list(toproceed): |
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681 succs = fullmapping[x] |
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682 for s in list(succs): |
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683 if s in toproceed: |
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684 # non final node with unknown closure |
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685 # We can't process this now |
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686 break |
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687 elif s in final: |
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688 # non final node, replace with closure |
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689 succs.remove(s) |
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690 succs.update(final[s]) |
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691 else: |
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692 final[x] = succs |
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693 toproceed.remove(x) |
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694 # remove tmpnodes from final mapping |
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695 for n in tmpnodes: |
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696 del final[n] |
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697 # we expect all changes involved in final to exist in the repo |
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698 # turn `final` into list (topologically sorted) |
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699 nm = repo.changelog.nodemap |
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700 for prec, succs in final.items(): |
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701 final[prec] = sorted(succs, key=nm.get) |
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702 |
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703 # computed topmost element (necessary for bookmark) |
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704 if new: |
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705 newtopmost = sorted(new, key=repo.changelog.rev)[-1] |
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706 elif not final: |
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707 # Nothing rewritten at all. we won't need `newtopmost` |
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708 # It is the same as `oldtopmost` and `processreplacement` know it |
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709 newtopmost = None |
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710 else: |
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711 # every body died. The newtopmost is the parent of the root. |
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712 newtopmost = repo[sorted(final, key=repo.changelog.rev)[0]].p1().node() |
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713 |
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714 return final, tmpnodes, new, newtopmost |
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715 |
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716 def movebookmarks(ui, repo, mapping, oldtopmost, newtopmost): |
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717 """Move bookmark from old to newly created node""" |
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718 if not mapping: |
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719 # if nothing got rewritten there is not purpose for this function |
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720 return |
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721 moves = [] |
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722 for bk, old in repo._bookmarks.iteritems(): |
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723 if old == oldtopmost: |
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724 # special case ensure bookmark stay on tip. |
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725 # |
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726 # This is arguably a feature and we may only want that for the |
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727 # active bookmark. But the behavior is kept compatible with the old |
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728 # version for now. |
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729 moves.append((bk, newtopmost)) |
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730 continue |
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731 base = old |
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732 new = mapping.get(base, None) |
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733 if new is None: |
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734 continue |
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735 while not new: |
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736 # base is killed, trying with parent |
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737 base = repo[base].p1().node() |
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738 new = mapping.get(base, (base,)) |
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739 # nothing to move |
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740 moves.append((bk, new[-1])) |
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741 if moves: |
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742 marks = repo._bookmarks |
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743 for mark, new in moves: |
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744 old = marks[mark] |
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745 ui.note(_('histedit: moving bookmarks %s from %s to %s\n') |
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746 % (mark, node.short(old), node.short(new))) |
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747 marks[mark] = new |
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748 marks.write() |
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749 |
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750 def cleanupnode(ui, repo, name, nodes): |
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751 """strip a group of nodes from the repository |
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752 |
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753 The set of node to strip may contains unknown nodes.""" |
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754 ui.debug('should strip %s nodes %s\n' % |
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755 (name, ', '.join([node.short(n) for n in nodes]))) |
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756 lock = None |
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757 try: |
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758 lock = repo.lock() |
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759 # Find all node that need to be stripped |
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760 # (we hg %lr instead of %ln to silently ignore unknown item |
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761 nm = repo.changelog.nodemap |
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762 nodes = [n for n in nodes if n in nm] |
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763 roots = [c.node() for c in repo.set("roots(%ln)", nodes)] |
4eb13b619785
histedit: factorise node stripping logic
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17663
diff
changeset
|
764 for c in roots: |
4eb13b619785
histedit: factorise node stripping logic
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17663
diff
changeset
|
765 # We should process node in reverse order to strip tip most first. |
4eb13b619785
histedit: factorise node stripping logic
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17663
diff
changeset
|
766 # but this trigger a bug in changegroup hook. |
4eb13b619785
histedit: factorise node stripping logic
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17663
diff
changeset
|
767 # This would reduce bundle overhead |
4eb13b619785
histedit: factorise node stripping logic
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17663
diff
changeset
|
768 repair.strip(ui, repo, c) |
4eb13b619785
histedit: factorise node stripping logic
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17663
diff
changeset
|
769 finally: |
4eb13b619785
histedit: factorise node stripping logic
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17663
diff
changeset
|
770 lockmod.release(lock) |