Mercurial > hg
annotate hgext/record.py @ 6858:8f256bf98219
Add support for multiple possible bisect results (issue1228, issue1182)
The real reason for both issue is that bisect can not handle cases where there
are multiple possibilities for the result.
Example (from issue1228):
rev 0 -> good
rev 1 -> skipped
rev 2 -> skipped
rev 3 -> skipped
rev 4 -> bad
Note that this patch does not only fix the reported Assertion Error but also
the problem of a non converging bisect:
hg init
for i in `seq 3`; do echo $i > $i; hg add $i; hg ci -m$i; done
hg bisect -b 2
hg bisect -g 0
hg bisect -s
From this state on, you can:
a) mark as bad forever (non converging!)
b) mark as good to get an inconsistent state
c) skip for the Assertion Error
Minor description and code edits by pmezard.
author | Bernhard Leiner <bleiner@gmail.com> |
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date | Sat, 02 Aug 2008 22:10:10 +0200 |
parents | e75aab656f46 |
children | b822a379860b 834f7e069cae |
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1 # record.py |
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2 # |
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3 # Copyright 2007 Bryan O'Sullivan <bos@serpentine.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of |
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6 # the GNU General Public License, incorporated herein by reference. |
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7 |
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8 '''interactive change selection during commit or qrefresh''' |
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9 |
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10 from mercurial.i18n import _ |
6212 | 11 from mercurial import cmdutil, commands, extensions, hg, mdiff, patch |
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12 from mercurial import util |
6212 | 13 import copy, cStringIO, errno, operator, os, re, tempfile |
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14 |
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15 lines_re = re.compile(r'@@ -(\d+),(\d+) \+(\d+),(\d+) @@\s*(.*)') |
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16 |
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17 def scanpatch(fp): |
5826 | 18 """like patch.iterhunks, but yield different events |
19 | |
20 - ('file', [header_lines + fromfile + tofile]) | |
21 - ('context', [context_lines]) | |
22 - ('hunk', [hunk_lines]) | |
23 - ('range', (-start,len, +start,len, diffp)) | |
24 """ | |
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25 lr = patch.linereader(fp) |
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26 |
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27 def scanwhile(first, p): |
5826 | 28 """scan lr while predicate holds""" |
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29 lines = [first] |
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30 while True: |
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31 line = lr.readline() |
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32 if not line: |
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33 break |
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34 if p(line): |
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35 lines.append(line) |
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36 else: |
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37 lr.push(line) |
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38 break |
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39 return lines |
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40 |
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41 while True: |
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42 line = lr.readline() |
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43 if not line: |
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44 break |
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45 if line.startswith('diff --git a/'): |
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46 def notheader(line): |
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47 s = line.split(None, 1) |
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48 return not s or s[0] not in ('---', 'diff') |
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49 header = scanwhile(line, notheader) |
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50 fromfile = lr.readline() |
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51 if fromfile.startswith('---'): |
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52 tofile = lr.readline() |
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53 header += [fromfile, tofile] |
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54 else: |
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55 lr.push(fromfile) |
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56 yield 'file', header |
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57 elif line[0] == ' ': |
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58 yield 'context', scanwhile(line, lambda l: l[0] in ' \\') |
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59 elif line[0] in '-+': |
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60 yield 'hunk', scanwhile(line, lambda l: l[0] in '-+\\') |
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61 else: |
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62 m = lines_re.match(line) |
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63 if m: |
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64 yield 'range', m.groups() |
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65 else: |
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66 raise patch.PatchError('unknown patch content: %r' % line) |
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67 |
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68 class header(object): |
5826 | 69 """patch header |
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70 |
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71 XXX shoudn't we move this to mercurial/patch.py ? |
5826 | 72 """ |
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73 diff_re = re.compile('diff --git a/(.*) b/(.*)$') |
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74 allhunks_re = re.compile('(?:index|new file|deleted file) ') |
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75 pretty_re = re.compile('(?:new file|deleted file) ') |
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76 special_re = re.compile('(?:index|new|deleted|copy|rename) ') |
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77 |
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78 def __init__(self, header): |
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79 self.header = header |
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80 self.hunks = [] |
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81 |
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82 def binary(self): |
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83 for h in self.header: |
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84 if h.startswith('index '): |
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85 return True |
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86 |
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87 def pretty(self, fp): |
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88 for h in self.header: |
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89 if h.startswith('index '): |
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90 fp.write(_('this modifies a binary file (all or nothing)\n')) |
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91 break |
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92 if self.pretty_re.match(h): |
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93 fp.write(h) |
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94 if self.binary(): |
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95 fp.write(_('this is a binary file\n')) |
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96 break |
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97 if h.startswith('---'): |
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98 fp.write(_('%d hunks, %d lines changed\n') % |
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99 (len(self.hunks), |
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100 sum([h.added + h.removed for h in self.hunks]))) |
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101 break |
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102 fp.write(h) |
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103 |
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104 def write(self, fp): |
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105 fp.write(''.join(self.header)) |
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106 |
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107 def allhunks(self): |
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108 for h in self.header: |
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109 if self.allhunks_re.match(h): |
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110 return True |
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111 |
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112 def files(self): |
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113 fromfile, tofile = self.diff_re.match(self.header[0]).groups() |
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114 if fromfile == tofile: |
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115 return [fromfile] |
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116 return [fromfile, tofile] |
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117 |
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118 def filename(self): |
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119 return self.files()[-1] |
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120 |
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121 def __repr__(self): |
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122 return '<header %s>' % (' '.join(map(repr, self.files()))) |
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123 |
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124 def special(self): |
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125 for h in self.header: |
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126 if self.special_re.match(h): |
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127 return True |
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128 |
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129 def countchanges(hunk): |
5826 | 130 """hunk -> (n+,n-)""" |
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131 add = len([h for h in hunk if h[0] == '+']) |
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132 rem = len([h for h in hunk if h[0] == '-']) |
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133 return add, rem |
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134 |
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135 class hunk(object): |
5826 | 136 """patch hunk |
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137 |
5826 | 138 XXX shouldn't we merge this with patch.hunk ? |
139 """ | |
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140 maxcontext = 3 |
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141 |
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142 def __init__(self, header, fromline, toline, proc, before, hunk, after): |
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143 def trimcontext(number, lines): |
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144 delta = len(lines) - self.maxcontext |
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145 if False and delta > 0: |
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146 return number + delta, lines[:self.maxcontext] |
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147 return number, lines |
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148 |
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149 self.header = header |
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150 self.fromline, self.before = trimcontext(fromline, before) |
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151 self.toline, self.after = trimcontext(toline, after) |
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152 self.proc = proc |
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153 self.hunk = hunk |
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154 self.added, self.removed = countchanges(self.hunk) |
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155 |
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156 def write(self, fp): |
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157 delta = len(self.before) + len(self.after) |
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158 fromlen = delta + self.removed |
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159 tolen = delta + self.added |
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160 fp.write('@@ -%d,%d +%d,%d @@%s\n' % |
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161 (self.fromline, fromlen, self.toline, tolen, |
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162 self.proc and (' ' + self.proc))) |
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163 fp.write(''.join(self.before + self.hunk + self.after)) |
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164 |
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165 pretty = write |
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166 |
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167 def filename(self): |
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168 return self.header.filename() |
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169 |
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170 def __repr__(self): |
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171 return '<hunk %r@%d>' % (self.filename(), self.fromline) |
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172 |
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173 def parsepatch(fp): |
5826 | 174 """patch -> [] of hunks """ |
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175 class parser(object): |
5826 | 176 """patch parsing state machine""" |
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177 def __init__(self): |
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178 self.fromline = 0 |
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179 self.toline = 0 |
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180 self.proc = '' |
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181 self.header = None |
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182 self.context = [] |
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183 self.before = [] |
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184 self.hunk = [] |
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185 self.stream = [] |
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186 |
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187 def addrange(self, (fromstart, fromend, tostart, toend, proc)): |
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188 self.fromline = int(fromstart) |
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189 self.toline = int(tostart) |
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190 self.proc = proc |
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191 |
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192 def addcontext(self, context): |
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193 if self.hunk: |
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194 h = hunk(self.header, self.fromline, self.toline, self.proc, |
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195 self.before, self.hunk, context) |
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196 self.header.hunks.append(h) |
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197 self.stream.append(h) |
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198 self.fromline += len(self.before) + h.removed |
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199 self.toline += len(self.before) + h.added |
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200 self.before = [] |
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201 self.hunk = [] |
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202 self.proc = '' |
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203 self.context = context |
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204 |
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205 def addhunk(self, hunk): |
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206 if self.context: |
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207 self.before = self.context |
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208 self.context = [] |
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209 self.hunk = data |
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210 |
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211 def newfile(self, hdr): |
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212 self.addcontext([]) |
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213 h = header(hdr) |
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214 self.stream.append(h) |
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215 self.header = h |
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216 |
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217 def finished(self): |
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218 self.addcontext([]) |
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219 return self.stream |
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220 |
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221 transitions = { |
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222 'file': {'context': addcontext, |
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223 'file': newfile, |
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224 'hunk': addhunk, |
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225 'range': addrange}, |
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226 'context': {'file': newfile, |
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227 'hunk': addhunk, |
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228 'range': addrange}, |
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229 'hunk': {'context': addcontext, |
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230 'file': newfile, |
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231 'range': addrange}, |
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232 'range': {'context': addcontext, |
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233 'hunk': addhunk}, |
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234 } |
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235 |
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236 p = parser() |
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237 |
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238 state = 'context' |
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239 for newstate, data in scanpatch(fp): |
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240 try: |
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241 p.transitions[state][newstate](p, data) |
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242 except KeyError: |
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243 raise patch.PatchError('unhandled transition: %s -> %s' % |
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244 (state, newstate)) |
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245 state = newstate |
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246 return p.finished() |
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247 |
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248 def filterpatch(ui, chunks): |
5826 | 249 """Interactively filter patch chunks into applied-only chunks""" |
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250 chunks = list(chunks) |
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251 chunks.reverse() |
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252 seen = {} |
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253 def consumefile(): |
5826 | 254 """fetch next portion from chunks until a 'header' is seen |
255 NB: header == new-file mark | |
256 """ | |
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257 consumed = [] |
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258 while chunks: |
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259 if isinstance(chunks[-1], header): |
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260 break |
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261 else: |
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262 consumed.append(chunks.pop()) |
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263 return consumed |
5826 | 264 |
265 resp_all = [None] # this two are changed from inside prompt, | |
266 resp_file = [None] # so can't be usual variables | |
267 applied = {} # 'filename' -> [] of chunks | |
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268 def prompt(query): |
5826 | 269 """prompt query, and process base inputs |
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270 |
5826 | 271 - y/n for the rest of file |
272 - y/n for the rest | |
273 - ? (help) | |
274 - q (quit) | |
275 | |
276 else, input is returned to the caller. | |
277 """ | |
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278 if resp_all[0] is not None: |
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279 return resp_all[0] |
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280 if resp_file[0] is not None: |
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281 return resp_file[0] |
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282 while True: |
5751 | 283 r = (ui.prompt(query + _(' [Ynsfdaq?] '), '(?i)[Ynsfdaq?]?$') |
284 or 'y').lower() | |
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285 if r == '?': |
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286 c = record.__doc__.find('y - record this change') |
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287 for l in record.__doc__[c:].splitlines(): |
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288 if l: ui.write(_(l.strip()), '\n') |
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289 continue |
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290 elif r == 's': |
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291 r = resp_file[0] = 'n' |
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292 elif r == 'f': |
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293 r = resp_file[0] = 'y' |
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294 elif r == 'd': |
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295 r = resp_all[0] = 'n' |
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296 elif r == 'a': |
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297 r = resp_all[0] = 'y' |
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298 elif r == 'q': |
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299 raise util.Abort(_('user quit')) |
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300 return r |
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301 while chunks: |
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302 chunk = chunks.pop() |
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303 if isinstance(chunk, header): |
5826 | 304 # new-file mark |
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305 resp_file = [None] |
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306 fixoffset = 0 |
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307 hdr = ''.join(chunk.header) |
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308 if hdr in seen: |
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309 consumefile() |
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310 continue |
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311 seen[hdr] = True |
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312 if resp_all[0] is None: |
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313 chunk.pretty(ui) |
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314 r = prompt(_('examine changes to %s?') % |
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315 _(' and ').join(map(repr, chunk.files()))) |
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316 if r == 'y': |
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317 applied[chunk.filename()] = [chunk] |
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318 if chunk.allhunks(): |
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319 applied[chunk.filename()] += consumefile() |
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320 else: |
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321 consumefile() |
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322 else: |
5826 | 323 # new hunk |
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324 if resp_file[0] is None and resp_all[0] is None: |
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325 chunk.pretty(ui) |
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326 r = prompt(_('record this change to %r?') % |
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327 chunk.filename()) |
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328 if r == 'y': |
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329 if fixoffset: |
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330 chunk = copy.copy(chunk) |
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331 chunk.toline += fixoffset |
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332 applied[chunk.filename()].append(chunk) |
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333 else: |
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334 fixoffset += chunk.removed - chunk.added |
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335 return reduce(operator.add, [h for h in applied.itervalues() |
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336 if h[0].special() or len(h) > 1], []) |
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337 |
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338 def record(ui, repo, *pats, **opts): |
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339 '''interactively select changes to commit |
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340 |
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341 If a list of files is omitted, all changes reported by "hg status" |
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342 will be candidates for recording. |
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343 |
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344 See 'hg help dates' for a list of formats valid for -d/--date. |
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345 |
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346 You will be prompted for whether to record changes to each |
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347 modified file, and for files with multiple changes, for each |
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348 change to use. For each query, the following responses are |
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349 possible: |
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350 |
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351 y - record this change |
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352 n - skip this change |
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353 |
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354 s - skip remaining changes to this file |
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355 f - record remaining changes to this file |
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356 |
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357 d - done, skip remaining changes and files |
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358 a - record all changes to all remaining files |
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359 q - quit, recording no changes |
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360 |
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361 ? - display help''' |
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362 |
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363 def record_committer(ui, repo, pats, opts): |
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364 commands.commit(ui, repo, *pats, **opts) |
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365 |
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366 dorecord(ui, repo, record_committer, *pats, **opts) |
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367 |
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368 |
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369 def qrecord(ui, repo, patch, *pats, **opts): |
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370 '''interactively record a new patch |
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371 |
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372 see 'hg help qnew' & 'hg help record' for more information and usage |
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373 ''' |
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374 |
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375 try: |
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376 mq = extensions.find('mq') |
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377 except KeyError: |
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378 raise util.Abort(_("'mq' extension not loaded")) |
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379 |
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380 def qrecord_committer(ui, repo, pats, opts): |
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381 mq.new(ui, repo, patch, *pats, **opts) |
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382 |
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383 opts = opts.copy() |
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384 opts['force'] = True # always 'qnew -f' |
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385 dorecord(ui, repo, qrecord_committer, *pats, **opts) |
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386 |
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387 |
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388 def dorecord(ui, repo, committer, *pats, **opts): |
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389 if not ui.interactive: |
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390 raise util.Abort(_('running non-interactively, use commit instead')) |
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391 |
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392 def recordfunc(ui, repo, files, message, match, opts): |
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393 """This is generic record driver. |
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394 |
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395 It's job is to interactively filter local changes, and accordingly |
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396 prepare working dir into a state, where the job can be delegated to |
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397 non-interactive commit command such as 'commit' or 'qrefresh'. |
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398 |
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399 After the actual job is done by non-interactive command, working dir |
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400 state is restored to original. |
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401 |
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402 In the end we'll record intresting changes, and everything else will be |
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403 left in place, so the user can continue his work. |
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404 """ |
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405 if files: |
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406 changes = None |
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407 else: |
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408 changes = repo.status(files=files, match=match)[:5] |
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409 modified, added, removed = changes[:3] |
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410 files = modified + added + removed |
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411 diffopts = mdiff.diffopts(git=True, nodates=True) |
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412 fp = cStringIO.StringIO() |
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413 patch.diff(repo, repo.dirstate.parents()[0], files=files, |
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414 match=match, changes=changes, opts=diffopts, fp=fp) |
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415 fp.seek(0) |
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416 |
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417 # 1. filter patch, so we have intending-to apply subset of it |
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418 chunks = filterpatch(ui, parsepatch(fp)) |
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419 del fp |
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420 |
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421 contenders = {} |
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422 for h in chunks: |
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423 try: contenders.update(dict.fromkeys(h.files())) |
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424 except AttributeError: pass |
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425 |
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426 newfiles = [f for f in files if f in contenders] |
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427 |
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428 if not newfiles: |
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429 ui.status(_('no changes to record\n')) |
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430 return 0 |
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431 |
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432 if changes is None: |
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433 changes = repo.status(files=newfiles, match=match)[:5] |
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434 modified = dict.fromkeys(changes[0]) |
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435 |
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436 # 2. backup changed files, so we can restore them in the end |
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437 backups = {} |
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438 backupdir = repo.join('record-backups') |
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439 try: |
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440 os.mkdir(backupdir) |
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441 except OSError, err: |
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442 if err.errno != errno.EEXIST: |
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443 raise |
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444 try: |
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445 # backup continues |
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446 for f in newfiles: |
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447 if f not in modified: |
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448 continue |
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449 fd, tmpname = tempfile.mkstemp(prefix=f.replace('/', '_')+'.', |
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450 dir=backupdir) |
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451 os.close(fd) |
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452 ui.debug('backup %r as %r\n' % (f, tmpname)) |
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453 util.copyfile(repo.wjoin(f), tmpname) |
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454 backups[f] = tmpname |
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455 |
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456 fp = cStringIO.StringIO() |
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457 for c in chunks: |
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458 if c.filename() in backups: |
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459 c.write(fp) |
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460 dopatch = fp.tell() |
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461 fp.seek(0) |
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462 |
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463 # 3a. apply filtered patch to clean repo (clean) |
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464 if backups: |
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465 hg.revert(repo, repo.dirstate.parents()[0], backups.has_key) |
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466 |
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467 # 3b. (apply) |
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468 if dopatch: |
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469 ui.debug('applying patch\n') |
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470 ui.debug(fp.getvalue()) |
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471 patch.internalpatch(fp, ui, 1, repo.root) |
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472 del fp |
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473 |
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474 # 4. We prepared working directory according to filtered patch. |
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475 # Now is the time to delegate the job to commit/qrefresh or the like! |
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476 |
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477 # it is important to first chdir to repo root -- we'll call a |
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478 # highlevel command with list of pathnames relative to repo root |
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479 cwd = os.getcwd() |
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480 os.chdir(repo.root) |
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481 try: |
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482 committer(ui, repo, newfiles, opts) |
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483 finally: |
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484 os.chdir(cwd) |
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485 |
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486 return 0 |
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487 finally: |
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488 # 5. finally restore backed-up files |
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489 try: |
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490 for realname, tmpname in backups.iteritems(): |
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491 ui.debug('restoring %r to %r\n' % (tmpname, realname)) |
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492 util.copyfile(tmpname, repo.wjoin(realname)) |
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493 os.unlink(tmpname) |
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494 os.rmdir(backupdir) |
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495 except OSError: |
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496 pass |
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497 return cmdutil.commit(ui, repo, recordfunc, pats, opts) |
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498 |
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499 cmdtable = { |
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500 "record": |
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501 (record, |
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502 |
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503 # add commit options |
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504 commands.table['^commit|ci'][1], |
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505 |
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506 _('hg record [OPTION]... [FILE]...')), |
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507 } |
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508 |
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parents:
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509 |
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parents:
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510 def extsetup(): |
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511 try: |
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512 mq = extensions.find('mq') |
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513 except KeyError: |
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514 return |
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515 |
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516 qcmdtable = { |
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517 "qrecord": |
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518 (qrecord, |
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parents:
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519 |
5932
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qrecord: record complements commit, so qrecord should complement qnew
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520 # add qnew options, except '--force' |
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521 [opt for opt in mq.cmdtable['qnew'][1] if opt[1] != 'force'], |
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parents:
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522 |
5932
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523 _('hg qrecord [OPTION]... PATCH [FILE]...')), |
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524 } |
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parents:
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525 |
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parents:
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526 cmdtable.update(qcmdtable) |
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parents:
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527 |