Mercurial > public > mercurial-scm > hg

annotate mercurial/formatter.py @ 25511:c2a4dfe2a336

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formatter: move most of template option helper to formatter We want to share this function between formatter and cmdutils. It doesn't belong in templater because it imports knowledge of ui layers that shouldn't be there. We'd prefer cmdutil to layer on the formatter rather than vice-versa. Since the formatter is the handler for -T options for all non-log commands, let's move the helper there. We leave the bits specific to the old --style option behind.
author Matt Mackall <mpm@selenic.com>
date Wed, 10 Jun 2015 14:29:13 -0500
parents 0a714a1f7d5c
children 8463433c2689
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1 # formatter.py - generic output formatting for mercurial
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2 #
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3 # Copyright 2012 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 import cPickle
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9 from node import hex, short
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10 from i18n import _
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11 import encoding, util
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12 import templater
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13 import os
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14
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15 class baseformatter(object):
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16 def __init__(self, ui, topic, opts):
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17 self._ui = ui
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18 self._topic = topic
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19 self._style = opts.get("style")
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20 self._template = opts.get("template")
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21 self._item = None
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22 # function to convert node to string suitable for this output
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23 self.hexfunc = hex
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24 def __nonzero__(self):
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25 '''return False if we're not doing real templating so we can
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26 skip extra work'''
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27 return True
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28 def _showitem(self):
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29 '''show a formatted item once all data is collected'''
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30 pass
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31 def startitem(self):
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32 '''begin an item in the format list'''
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33 if self._item is not None:
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34 self._showitem()
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35 self._item = {}
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36 def data(self, **data):
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37 '''insert data into item that's not shown in default output'''
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38 self._item.update(data)
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39 def write(self, fields, deftext, *fielddata, **opts):
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40 '''do default text output while assigning data to item'''
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41 for k, v in zip(fields.split(), fielddata):
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42 self._item[k] = v
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43 def condwrite(self, cond, fields, deftext, *fielddata, **opts):
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44 '''do conditional write (primarily for plain formatter)'''
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45 for k, v in zip(fields.split(), fielddata):
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46 self._item[k] = v
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47 def plain(self, text, **opts):
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48 '''show raw text for non-templated mode'''
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49 pass
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50 def end(self):
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51 '''end output for the formatter'''
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52 if self._item is not None:
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53 self._showitem()
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54
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55 class plainformatter(baseformatter):
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56 '''the default text output scheme'''
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57 def __init__(self, ui, topic, opts):
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58 baseformatter.__init__(self, ui, topic, opts)
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59 if ui.debugflag:
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60 self.hexfunc = hex
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61 else:
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62 self.hexfunc = short
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63 def __nonzero__(self):
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64 return False
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65 def startitem(self):
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66 pass
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67 def data(self, **data):
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68 pass
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69 def write(self, fields, deftext, *fielddata, **opts):
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70 self._ui.write(deftext % fielddata, **opts)
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71 def condwrite(self, cond, fields, deftext, *fielddata, **opts):
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72 '''do conditional write'''
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73 if cond:
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74 self._ui.write(deftext % fielddata, **opts)
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75 def plain(self, text, **opts):
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76 self._ui.write(text, **opts)
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77 def end(self):
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78 pass
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79
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80 class debugformatter(baseformatter):
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81 def __init__(self, ui, topic, opts):
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82 baseformatter.__init__(self, ui, topic, opts)
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83 self._ui.write("%s = [\n" % self._topic)
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84 def _showitem(self):
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85 self._ui.write(" " + repr(self._item) + ",\n")
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86 def end(self):
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87 baseformatter.end(self)
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88 self._ui.write("]\n")
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89
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90 class pickleformatter(baseformatter):
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91 def __init__(self, ui, topic, opts):
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92 baseformatter.__init__(self, ui, topic, opts)
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93 self._data = []
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94 def _showitem(self):
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95 self._data.append(self._item)
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96 def end(self):
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97 baseformatter.end(self)
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98 self._ui.write(cPickle.dumps(self._data))
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99
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100 def _jsonifyobj(v):
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101 if isinstance(v, tuple):
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102 return '[' + ', '.join(_jsonifyobj(e) for e in v) + ']'
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103 elif v is None:
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104 return 'null'
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105 elif v is True:
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106 return 'true'
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107 elif v is False:
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108 return 'false'
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109 elif isinstance(v, (int, float)):
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110 return str(v)
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111 else:
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112 return '"%s"' % encoding.jsonescape(v)
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113
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114 class jsonformatter(baseformatter):
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115 def __init__(self, ui, topic, opts):
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116 baseformatter.__init__(self, ui, topic, opts)
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117 self._ui.write("[")
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118 self._ui._first = True
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119 def _showitem(self):
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120 if self._ui._first:
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121 self._ui._first = False
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122 else:
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123 self._ui.write(",")
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124
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125 self._ui.write("\n {\n")
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126 first = True
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127 for k, v in sorted(self._item.items()):
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128 if first:
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129 first = False
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130 else:
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131 self._ui.write(",\n")
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132 self._ui.write(' "%s": %s' % (k, _jsonifyobj(v)))
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133 self._ui.write("\n }")
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134 def end(self):
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135 baseformatter.end(self)
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136 self._ui.write("\n]\n")
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137
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138 def lookuptemplate(ui, topic, tmpl):
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139 # looks like a literal template?
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140 if '{' in tmpl:
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141 return tmpl, None
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142
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143 # perhaps a stock style?
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144 if not os.path.split(tmpl)[0]:
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145 mapname = (templater.templatepath('map-cmdline.' + tmpl)
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146 or templater.templatepath(tmpl))
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147 if mapname and os.path.isfile(mapname):
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148 return None, mapname
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149
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150 # perhaps it's a reference to [templates]
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151 t = ui.config('templates', tmpl)
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152 if t:
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153 try:
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154 tmpl = templater.unquotestring(t)
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155 except SyntaxError:
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156 tmpl = t
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157 return tmpl, None
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158
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159 if tmpl == 'list':
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160 ui.write(_("available styles: %s\n") % templater.stylelist())
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161 raise util.Abort(_("specify a template"))
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162
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163 # perhaps it's a path to a map or a template
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164 if ('/' in tmpl or '\\' in tmpl) and os.path.isfile(tmpl):
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165 # is it a mapfile for a style?
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166 if os.path.basename(tmpl).startswith("map-"):
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167 return None, os.path.realpath(tmpl)
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168 tmpl = open(tmpl).read()
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169 return tmpl, None
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170
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171 # constant string?
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172 return tmpl, None
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173
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174 def formatter(ui, topic, opts):
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175 template = opts.get("template", "")
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176 if template == "json":
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177 return jsonformatter(ui, topic, opts)
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178 elif template == "pickle":
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179 return pickleformatter(ui, topic, opts)
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180 elif template == "debug":
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181 return debugformatter(ui, topic, opts)
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182 elif template != "":
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183 raise util.Abort(_("custom templates not yet supported"))
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184 elif ui.configbool('ui', 'formatdebug'):
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185 return debugformatter(ui, topic, opts)
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186 elif ui.configbool('ui', 'formatjson'):
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187 return jsonformatter(ui, topic, opts)
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188 return plainformatter(ui, topic, opts)