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