Mercurial > hg
annotate hgext/color.py @ 9171:a458b9bf4f3a
hg: better wrapping of string literal
author | Martin Geisler <mg@lazybytes.net> |
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date | Fri, 17 Jul 2009 20:52:21 +0200 |
parents | 07788bbb35e4 |
children | c1a1b49221e3 |
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1 # color.py color output for the status and qseries commands |
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2 # |
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3 # Copyright (C) 2007 Kevin Christen <kevin.christen@gmail.com> |
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4 # |
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5 # This program is free software; you can redistribute it and/or modify it |
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6 # under the terms of the GNU General Public License as published by the |
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7 # Free Software Foundation; either version 2 of the License, or (at your |
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8 # option) any later version. |
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9 # |
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10 # This program is distributed in the hope that it will be useful, but |
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11 # WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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13 # Public License for more details. |
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14 # |
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15 # You should have received a copy of the GNU General Public License along |
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16 # with this program; if not, write to the Free Software Foundation, Inc., |
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17 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 |
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19 '''colorize output from some commands |
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20 |
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21 This extension modifies the status command to add color to its output to |
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22 reflect file status, the qseries command to add color to reflect patch status |
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23 (applied, unapplied, missing), and to diff-related commands to highlight |
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24 additions, removals, diff headers, and trailing whitespace. |
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25 |
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26 Other effects in addition to color, like bold and underlined text, are also |
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27 available. Effects are rendered with the ECMA-48 SGR control function (aka |
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28 ANSI escape codes). This module also provides the render_text function, which |
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29 can be used to add effects to any text. |
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30 |
8685 | 31 Default effects may be overridden from the .hgrc file: |
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32 |
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33 [color] |
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34 status.modified = blue bold underline red_background |
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35 status.added = green bold |
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36 status.removed = red bold blue_background |
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37 status.deleted = cyan bold underline |
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38 status.unknown = magenta bold underline |
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39 status.ignored = black bold |
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40 |
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41 # 'none' turns off all effects |
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42 status.clean = none |
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43 status.copied = none |
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44 |
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45 qseries.applied = blue bold underline |
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46 qseries.unapplied = black bold |
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47 qseries.missing = red bold |
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49 diff.diffline = bold | |
50 diff.extended = cyan bold | |
51 diff.file_a = red bold | |
52 diff.file_b = green bold | |
53 diff.hunk = magenta | |
54 diff.deleted = red | |
55 diff.inserted = green | |
56 diff.changed = white | |
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57 diff.trailingwhitespace = bold red_background |
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58 ''' |
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59 |
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60 import os, sys |
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61 |
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62 from mercurial import cmdutil, commands, extensions, error |
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63 from mercurial.i18n import _ |
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64 |
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65 # start and stop parameters for effects |
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66 _effect_params = {'none': 0, |
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67 'black': 30, |
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68 'red': 31, |
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69 'green': 32, |
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70 'yellow': 33, |
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71 'blue': 34, |
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72 'magenta': 35, |
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73 'cyan': 36, |
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74 'white': 37, |
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75 'bold': 1, |
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76 'italic': 3, |
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77 'underline': 4, |
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78 'inverse': 7, |
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79 'black_background': 40, |
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80 'red_background': 41, |
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81 'green_background': 42, |
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82 'yellow_background': 43, |
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83 'blue_background': 44, |
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84 'purple_background': 45, |
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85 'cyan_background': 46, |
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86 'white_background': 47} |
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87 |
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88 def render_effects(text, effects): |
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89 'Wrap text in commands to turn on each effect.' |
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90 start = [str(_effect_params[e]) for e in ['none'] + effects] |
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91 start = '\033[' + ';'.join(start) + 'm' |
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92 stop = '\033[' + str(_effect_params['none']) + 'm' |
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93 return ''.join([start, text, stop]) |
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94 |
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95 def colorstatus(orig, ui, repo, *pats, **opts): |
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96 '''run the status command with colored output''' |
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97 |
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98 delimiter = opts['print0'] and '\0' or '\n' |
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99 |
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100 nostatus = opts.get('no_status') |
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101 opts['no_status'] = False |
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102 # run status and capture its output |
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103 ui.pushbuffer() |
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104 retval = orig(ui, repo, *pats, **opts) |
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105 # filter out empty strings |
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106 lines_with_status = [ line for line in ui.popbuffer().split(delimiter) if line ] |
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107 |
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108 if nostatus: |
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109 lines = [l[2:] for l in lines_with_status] |
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110 else: |
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111 lines = lines_with_status |
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112 |
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113 # apply color to output and display it |
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114 for i in xrange(len(lines)): |
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115 status = _status_abbreviations[lines_with_status[i][0]] |
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116 effects = _status_effects[status] |
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117 if effects: |
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118 lines[i] = render_effects(lines[i], effects) |
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120 return retval |
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121 |
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122 _status_abbreviations = { 'M': 'modified', |
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123 'A': 'added', |
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124 'R': 'removed', |
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125 '!': 'deleted', |
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126 '?': 'unknown', |
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127 'I': 'ignored', |
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128 'C': 'clean', |
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129 ' ': 'copied', } |
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130 |
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131 _status_effects = { 'modified': ['blue', 'bold'], |
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132 'added': ['green', 'bold'], |
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133 'removed': ['red', 'bold'], |
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134 'deleted': ['cyan', 'bold', 'underline'], |
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135 'unknown': ['magenta', 'bold', 'underline'], |
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136 'ignored': ['black', 'bold'], |
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137 'clean': ['none'], |
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138 'copied': ['none'], } |
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139 |
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140 def colorqseries(orig, ui, repo, *dummy, **opts): |
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141 '''run the qseries command with colored output''' |
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142 ui.pushbuffer() |
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143 retval = orig(ui, repo, **opts) |
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144 patches = ui.popbuffer().splitlines() |
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145 for patch in patches: |
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146 patchname = patch |
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147 if opts['summary']: |
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148 patchname = patchname.split(': ', 1)[0] |
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149 if ui.verbose: |
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150 patchname = patchname.lstrip().split(' ', 2)[-1] |
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151 |
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152 if opts['missing']: |
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153 effects = _patch_effects['missing'] |
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154 # Determine if patch is applied. |
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155 elif [ applied for applied in repo.mq.applied |
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156 if patchname == applied.name ]: |
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157 effects = _patch_effects['applied'] |
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158 else: |
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159 effects = _patch_effects['unapplied'] |
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160 |
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161 patch = patch.replace(patchname, render_effects(patchname, effects), 1) |
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162 ui.write(patch + '\n') |
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163 return retval |
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164 |
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165 _patch_effects = { 'applied': ['blue', 'bold', 'underline'], |
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166 'missing': ['red', 'bold'], |
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167 'unapplied': ['black', 'bold'], } |
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168 |
7456 | 169 def colorwrap(orig, s): |
170 '''wrap ui.write for colored diff output''' | |
171 lines = s.split('\n') | |
172 for i, line in enumerate(lines): | |
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173 stripline = line |
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174 if line and line[0] in '+-': |
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175 # highlight trailing whitespace, but only in changed lines |
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176 stripline = line.rstrip() |
7456 | 177 for prefix, style in _diff_prefixes: |
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178 if stripline.startswith(prefix): |
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179 lines[i] = render_effects(stripline, _diff_effects[style]) |
7456 | 180 break |
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181 if line != stripline: |
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182 lines[i] += render_effects( |
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183 line[len(stripline):], _diff_effects['trailingwhitespace']) |
7456 | 184 orig('\n'.join(lines)) |
185 | |
186 def colorshowpatch(orig, self, node): | |
187 '''wrap cmdutil.changeset_printer.showpatch with colored output''' | |
188 oldwrite = extensions.wrapfunction(self.ui, 'write', colorwrap) | |
189 try: | |
190 orig(self, node) | |
191 finally: | |
192 self.ui.write = oldwrite | |
193 | |
194 def colordiff(orig, ui, repo, *pats, **opts): | |
195 '''run the diff command with colored output''' | |
196 oldwrite = extensions.wrapfunction(ui, 'write', colorwrap) | |
197 try: | |
198 orig(ui, repo, *pats, **opts) | |
199 finally: | |
200 ui.write = oldwrite | |
201 | |
202 _diff_prefixes = [('diff', 'diffline'), | |
203 ('copy', 'extended'), | |
204 ('rename', 'extended'), | |
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205 ('old', 'extended'), |
7456 | 206 ('new', 'extended'), |
207 ('deleted', 'extended'), | |
208 ('---', 'file_a'), | |
209 ('+++', 'file_b'), | |
210 ('@', 'hunk'), | |
211 ('-', 'deleted'), | |
212 ('+', 'inserted')] | |
213 | |
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214 _diff_effects = {'diffline': ['bold'], |
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215 'extended': ['cyan', 'bold'], |
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216 'file_a': ['red', 'bold'], |
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217 'file_b': ['green', 'bold'], |
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218 'hunk': ['magenta'], |
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219 'deleted': ['red'], |
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220 'inserted': ['green'], |
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221 'changed': ['white'], |
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222 'trailingwhitespace': ['bold', 'red_background']} |
7456 | 223 |
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224 _ui = None |
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225 |
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226 def uisetup(ui): |
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227 '''Initialize the extension.''' |
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228 global _ui |
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229 _ui = ui |
7456 | 230 _setupcmd(ui, 'diff', commands.table, colordiff, _diff_effects) |
231 _setupcmd(ui, 'incoming', commands.table, None, _diff_effects) | |
232 _setupcmd(ui, 'log', commands.table, None, _diff_effects) | |
233 _setupcmd(ui, 'outgoing', commands.table, None, _diff_effects) | |
234 _setupcmd(ui, 'tip', commands.table, None, _diff_effects) | |
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235 _setupcmd(ui, 'status', commands.table, colorstatus, _status_effects) |
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236 |
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237 def extsetup(): |
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238 try: |
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239 mq = extensions.find('mq') |
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240 try: |
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241 # If we are loaded after mq, we must wrap commands.table |
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242 _setupcmd(_ui, 'qdiff', commands.table, colordiff, _diff_effects) |
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243 _setupcmd(_ui, 'qseries', commands.table, colorqseries, _patch_effects) |
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244 except error.UnknownCommand: |
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245 # Otherwise we wrap mq.cmdtable |
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246 _setupcmd(_ui, 'qdiff', mq.cmdtable, colordiff, _diff_effects) |
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247 _setupcmd(_ui, 'qseries', mq.cmdtable, colorqseries, _patch_effects) |
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248 except KeyError: |
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249 # The mq extension is not enabled |
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250 pass |
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251 |
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252 def _setupcmd(ui, cmd, table, func, effectsmap): |
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253 '''patch in command to command table and load effect map''' |
7455 | 254 def nocolor(orig, *args, **opts): |
255 | |
256 if (opts['no_color'] or opts['color'] == 'never' or | |
257 (opts['color'] == 'auto' and (os.environ.get('TERM') == 'dumb' | |
258 or not sys.__stdout__.isatty()))): | |
259 return orig(*args, **opts) | |
260 | |
7456 | 261 oldshowpatch = extensions.wrapfunction(cmdutil.changeset_printer, |
262 'showpatch', colorshowpatch) | |
263 try: | |
264 if func is not None: | |
265 return func(orig, *args, **opts) | |
266 return orig(*args, **opts) | |
267 finally: | |
268 cmdutil.changeset_printer.showpatch = oldshowpatch | |
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269 |
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270 entry = extensions.wrapcommand(table, cmd, nocolor) |
7455 | 271 entry[1].extend([ |
272 ('', 'color', 'auto', _("when to colorize (always, auto, or never)")), | |
273 ('', 'no-color', None, _("don't colorize output")), | |
274 ]) | |
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275 |
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276 for status in effectsmap: |
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277 configkey = cmd + '.' + status |
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278 effects = ui.configlist('color', configkey) |
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279 if effects: |
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280 good = [] |
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281 for e in effects: |
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282 if e in _effect_params: |
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283 good.append(e) |
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284 else: |
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285 ui.warn(_("ignoring unknown color/effect %r " |
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286 "(configured in color.%s)\n") |
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287 % (e, configkey)) |
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288 effectsmap[status] = good |