annotate mercurial/templateutil.py @ 37162:53e6b7e05553

templater: drop bool support from evalastype() Future patches will split evalastype() into two functions, evalrawexp() and unwrapastype(), so we can catch the exception of type conversion. # evaluating function may bubble up inner ParseError thing = evalrawexp(context, mapping, arg) try: return unwrapastype(context, thing) except ParseError: # add hint and reraise However, evalboolean() can't be factored out in this way since it has to process boolean-like symbols as non keyword. Fortunately, it's unlikely that we'll need a general type converter supporting bool, so this patch drops it from the table.
author Yuya Nishihara <yuya@tcha.org>
date Fri, 23 Mar 2018 20:23:55 +0900
parents e09d2183e226
children 0023da2910c9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # templateutil.py - utility for template evaluation
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2 #
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3 # Copyright 2005, 2006 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 from __future__ import absolute_import
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9
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10 import types
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11
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12 from .i18n import _
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13 from . import (
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14 error,
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15 pycompat,
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16 util,
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17 )
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18 from .utils import (
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19 stringutil,
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20 )
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21
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22 class ResourceUnavailable(error.Abort):
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23 pass
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24
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25 class TemplateNotFound(error.Abort):
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26 pass
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27
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28 class hybrid(object):
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29 """Wrapper for list or dict to support legacy template
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30
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31 This class allows us to handle both:
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32 - "{files}" (legacy command-line-specific list hack) and
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33 - "{files % '{file}\n'}" (hgweb-style with inlining and function support)
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34 and to access raw values:
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35 - "{ifcontains(file, files, ...)}", "{ifcontains(key, extras, ...)}"
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36 - "{get(extras, key)}"
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37 - "{files|json}"
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38 """
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39
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40 def __init__(self, gen, values, makemap, joinfmt, keytype=None):
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41 if gen is not None:
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42 self.gen = gen # generator or function returning generator
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43 self._values = values
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44 self._makemap = makemap
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45 self.joinfmt = joinfmt
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46 self.keytype = keytype # hint for 'x in y' where type(x) is unresolved
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47 def gen(self):
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48 """Default generator to stringify this as {join(self, ' ')}"""
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49 for i, x in enumerate(self._values):
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50 if i > 0:
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51 yield ' '
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52 yield self.joinfmt(x)
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53 def itermaps(self):
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54 makemap = self._makemap
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55 for x in self._values:
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56 yield makemap(x)
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57 def __contains__(self, x):
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58 return x in self._values
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59 def __getitem__(self, key):
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60 return self._values[key]
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61 def __len__(self):
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62 return len(self._values)
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63 def __iter__(self):
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64 return iter(self._values)
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65 def __getattr__(self, name):
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66 if name not in (r'get', r'items', r'iteritems', r'iterkeys',
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67 r'itervalues', r'keys', r'values'):
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68 raise AttributeError(name)
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69 return getattr(self._values, name)
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70
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71 class mappable(object):
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72 """Wrapper for non-list/dict object to support map operation
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73
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74 This class allows us to handle both:
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75 - "{manifest}"
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76 - "{manifest % '{rev}:{node}'}"
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77 - "{manifest.rev}"
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78
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79 Unlike a hybrid, this does not simulate the behavior of the underling
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80 value. Use unwrapvalue() or unwraphybrid() to obtain the inner object.
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81 """
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82
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83 def __init__(self, gen, key, value, makemap):
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84 if gen is not None:
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85 self.gen = gen # generator or function returning generator
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86 self._key = key
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87 self._value = value # may be generator of strings
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88 self._makemap = makemap
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89
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90 def gen(self):
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91 yield pycompat.bytestr(self._value)
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92
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93 def tomap(self):
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94 return self._makemap(self._key)
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95
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96 def itermaps(self):
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97 yield self.tomap()
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98
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99 def hybriddict(data, key='key', value='value', fmt=None, gen=None):
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100 """Wrap data to support both dict-like and string-like operations"""
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101 prefmt = pycompat.identity
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102 if fmt is None:
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103 fmt = '%s=%s'
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104 prefmt = pycompat.bytestr
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105 return hybrid(gen, data, lambda k: {key: k, value: data[k]},
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106 lambda k: fmt % (prefmt(k), prefmt(data[k])))
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107
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108 def hybridlist(data, name, fmt=None, gen=None):
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109 """Wrap data to support both list-like and string-like operations"""
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110 prefmt = pycompat.identity
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111 if fmt is None:
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112 fmt = '%s'
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113 prefmt = pycompat.bytestr
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114 return hybrid(gen, data, lambda x: {name: x}, lambda x: fmt % prefmt(x))
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115
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116 def unwraphybrid(thing):
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117 """Return an object which can be stringified possibly by using a legacy
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118 template"""
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119 gen = getattr(thing, 'gen', None)
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120 if gen is None:
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121 return thing
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122 if callable(gen):
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123 return gen()
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124 return gen
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125
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126 def unwrapvalue(thing):
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127 """Move the inner value object out of the wrapper"""
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128 if not util.safehasattr(thing, '_value'):
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129 return thing
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130 return thing._value
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131
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132 def wraphybridvalue(container, key, value):
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133 """Wrap an element of hybrid container to be mappable
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134
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135 The key is passed to the makemap function of the given container, which
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136 should be an item generated by iter(container).
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137 """
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138 makemap = getattr(container, '_makemap', None)
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139 if makemap is None:
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140 return value
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141 if util.safehasattr(value, '_makemap'):
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142 # a nested hybrid list/dict, which has its own way of map operation
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143 return value
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144 return mappable(None, key, value, makemap)
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145
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146 def compatdict(context, mapping, name, data, key='key', value='value',
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147 fmt=None, plural=None, separator=' '):
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148 """Wrap data like hybriddict(), but also supports old-style list template
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149
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150 This exists for backward compatibility with the old-style template. Use
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151 hybriddict() for new template keywords.
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152 """
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153 c = [{key: k, value: v} for k, v in data.iteritems()]
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154 f = _showcompatlist(context, mapping, name, c, plural, separator)
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155 return hybriddict(data, key=key, value=value, fmt=fmt, gen=f)
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156
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157 def compatlist(context, mapping, name, data, element=None, fmt=None,
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158 plural=None, separator=' '):
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159 """Wrap data like hybridlist(), but also supports old-style list template
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160
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161 This exists for backward compatibility with the old-style template. Use
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162 hybridlist() for new template keywords.
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163 """
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164 f = _showcompatlist(context, mapping, name, data, plural, separator)
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165 return hybridlist(data, name=element or name, fmt=fmt, gen=f)
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166
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167 def _showcompatlist(context, mapping, name, values, plural=None, separator=' '):
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168 """Return a generator that renders old-style list template
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169
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170 name is name of key in template map.
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171 values is list of strings or dicts.
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172 plural is plural of name, if not simply name + 's'.
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173 separator is used to join values as a string
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174
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175 expansion works like this, given name 'foo'.
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176
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177 if values is empty, expand 'no_foos'.
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178
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179 if 'foo' not in template map, return values as a string,
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180 joined by 'separator'.
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181
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182 expand 'start_foos'.
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183
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184 for each value, expand 'foo'. if 'last_foo' in template
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185 map, expand it instead of 'foo' for last key.
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186
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187 expand 'end_foos'.
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188 """
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189 if not plural:
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190 plural = name + 's'
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191 if not values:
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192 noname = 'no_' + plural
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193 if context.preload(noname):
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194 yield context.process(noname, mapping)
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195 return
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196 if not context.preload(name):
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197 if isinstance(values[0], bytes):
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198 yield separator.join(values)
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199 else:
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200 for v in values:
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201 r = dict(v)
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202 r.update(mapping)
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203 yield r
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204 return
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205 startname = 'start_' + plural
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206 if context.preload(startname):
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207 yield context.process(startname, mapping)
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diff changeset
208 def one(v, tag=name):
37077
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209 vmapping = {}
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210 try:
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211 vmapping.update(v)
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212 # Python 2 raises ValueError if the type of v is wrong. Python
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213 # 3 raises TypeError.
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214 except (AttributeError, TypeError, ValueError):
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215 try:
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216 # Python 2 raises ValueError trying to destructure an e.g.
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217 # bytes. Python 3 raises TypeError.
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diff changeset
218 for a, b in v:
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diff changeset
219 vmapping[a] = b
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diff changeset
220 except (TypeError, ValueError):
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221 vmapping[name] = v
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diff changeset
222 vmapping = context.overlaymap(mapping, vmapping)
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223 return context.process(tag, vmapping)
36927
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224 lastname = 'last_' + name
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diff changeset
225 if context.preload(lastname):
36927
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diff changeset
226 last = values.pop()
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227 else:
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228 last = None
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229 for v in values:
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230 yield one(v)
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diff changeset
231 if last is not None:
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232 yield one(last, tag=lastname)
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diff changeset
233 endname = 'end_' + plural
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diff changeset
234 if context.preload(endname):
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235 yield context.process(endname, mapping)
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236
37159
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237 def flatten(thing):
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238 """Yield a single stream from a possibly nested set of iterators"""
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239 thing = unwraphybrid(thing)
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diff changeset
240 if isinstance(thing, bytes):
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diff changeset
241 yield thing
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242 elif isinstance(thing, str):
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diff changeset
243 # We can only hit this on Python 3, and it's here to guard
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diff changeset
244 # against infinite recursion.
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245 raise error.ProgrammingError('Mercurial IO including templates is done'
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diff changeset
246 ' with bytes, not strings, got %r' % thing)
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diff changeset
247 elif thing is None:
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248 pass
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diff changeset
249 elif not util.safehasattr(thing, '__iter__'):
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diff changeset
250 yield pycompat.bytestr(thing)
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diff changeset
251 else:
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diff changeset
252 for i in thing:
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diff changeset
253 i = unwraphybrid(i)
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diff changeset
254 if isinstance(i, bytes):
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255 yield i
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diff changeset
256 elif i is None:
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257 pass
888507ec655e templateutil: move flatten() from templater
Yuya Nishihara <yuya@tcha.org>
parents: 37107
diff changeset
258 elif not util.safehasattr(i, '__iter__'):
888507ec655e templateutil: move flatten() from templater
Yuya Nishihara <yuya@tcha.org>
parents: 37107
diff changeset
259 yield pycompat.bytestr(i)
888507ec655e templateutil: move flatten() from templater
Yuya Nishihara <yuya@tcha.org>
parents: 37107
diff changeset
260 else:
888507ec655e templateutil: move flatten() from templater
Yuya Nishihara <yuya@tcha.org>
parents: 37107
diff changeset
261 for j in flatten(i):
888507ec655e templateutil: move flatten() from templater
Yuya Nishihara <yuya@tcha.org>
parents: 37107
diff changeset
262 yield j
888507ec655e templateutil: move flatten() from templater
Yuya Nishihara <yuya@tcha.org>
parents: 37107
diff changeset
263
36926
6ff6e1d6b5b8 templater: move stringify() to templateutil module
Yuya Nishihara <yuya@tcha.org>
parents: 36919
diff changeset
264 def stringify(thing):
6ff6e1d6b5b8 templater: move stringify() to templateutil module
Yuya Nishihara <yuya@tcha.org>
parents: 36919
diff changeset
265 """Turn values into bytes by converting into text and concatenating them"""
37160
e09d2183e226 templateutil: reimplement stringify() using flatten()
Yuya Nishihara <yuya@tcha.org>
parents: 37159
diff changeset
266 if isinstance(thing, bytes):
e09d2183e226 templateutil: reimplement stringify() using flatten()
Yuya Nishihara <yuya@tcha.org>
parents: 37159
diff changeset
267 return thing # retain localstr to be round-tripped
e09d2183e226 templateutil: reimplement stringify() using flatten()
Yuya Nishihara <yuya@tcha.org>
parents: 37159
diff changeset
268 return b''.join(flatten(thing))
36926
6ff6e1d6b5b8 templater: move stringify() to templateutil module
Yuya Nishihara <yuya@tcha.org>
parents: 36919
diff changeset
269
31927
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
270 def findsymbolicname(arg):
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
271 """Find symbolic name for the given compiled expression; returns None
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
272 if nothing found reliably"""
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
273 while True:
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
274 func, data = arg
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
275 if func is runsymbol:
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
276 return data
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
277 elif func is runfilter:
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
278 arg = data[0]
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
279 else:
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
280 return None
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
281
34333
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
282 def evalrawexp(context, mapping, arg):
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
283 """Evaluate given argument as a bare template object which may require
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
284 further processing (such as folding generator of strings)"""
26124
604a7c941103 templater: extract helper that evaluates filter or function argument
Yuya Nishihara <yuya@tcha.org>
parents: 26106
diff changeset
285 func, data = arg
34333
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
286 return func(context, mapping, data)
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
287
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
288 def evalfuncarg(context, mapping, arg):
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
289 """Evaluate given argument as value type"""
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
290 thing = evalrawexp(context, mapping, arg)
36927
32f9b7e3f056 templater: move hybrid class and functions to templateutil module
Yuya Nishihara <yuya@tcha.org>
parents: 36926
diff changeset
291 thing = unwrapvalue(thing)
34333
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
292 # evalrawexp() may return string, generator of strings or arbitrary object
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
293 # such as date tuple, but filter does not want generator.
26124
604a7c941103 templater: extract helper that evaluates filter or function argument
Yuya Nishihara <yuya@tcha.org>
parents: 26106
diff changeset
294 if isinstance(thing, types.GeneratorType):
604a7c941103 templater: extract helper that evaluates filter or function argument
Yuya Nishihara <yuya@tcha.org>
parents: 26106
diff changeset
295 thing = stringify(thing)
604a7c941103 templater: extract helper that evaluates filter or function argument
Yuya Nishihara <yuya@tcha.org>
parents: 26106
diff changeset
296 return thing
604a7c941103 templater: extract helper that evaluates filter or function argument
Yuya Nishihara <yuya@tcha.org>
parents: 26106
diff changeset
297
29827
034412ca28c3 templater: fix if() to not evaluate False as bool('False')
Yuya Nishihara <yuya@tcha.org>
parents: 29826
diff changeset
298 def evalboolean(context, mapping, arg):
29828
cc11079644fc templater: make pad() evaluate boolean argument (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 29827
diff changeset
299 """Evaluate given argument as boolean, but also takes boolean literals"""
29827
034412ca28c3 templater: fix if() to not evaluate False as bool('False')
Yuya Nishihara <yuya@tcha.org>
parents: 29826
diff changeset
300 func, data = arg
29828
cc11079644fc templater: make pad() evaluate boolean argument (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 29827
diff changeset
301 if func is runsymbol:
cc11079644fc templater: make pad() evaluate boolean argument (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 29827
diff changeset
302 thing = func(context, mapping, data, default=None)
cc11079644fc templater: make pad() evaluate boolean argument (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 29827
diff changeset
303 if thing is None:
cc11079644fc templater: make pad() evaluate boolean argument (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 29827
diff changeset
304 # not a template keyword, takes as a boolean literal
37087
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37077
diff changeset
305 thing = stringutil.parsebool(data)
29828
cc11079644fc templater: make pad() evaluate boolean argument (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 29827
diff changeset
306 else:
cc11079644fc templater: make pad() evaluate boolean argument (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 29827
diff changeset
307 thing = func(context, mapping, data)
36927
32f9b7e3f056 templater: move hybrid class and functions to templateutil module
Yuya Nishihara <yuya@tcha.org>
parents: 36926
diff changeset
308 thing = unwrapvalue(thing)
29827
034412ca28c3 templater: fix if() to not evaluate False as bool('False')
Yuya Nishihara <yuya@tcha.org>
parents: 29826
diff changeset
309 if isinstance(thing, bool):
034412ca28c3 templater: fix if() to not evaluate False as bool('False')
Yuya Nishihara <yuya@tcha.org>
parents: 29826
diff changeset
310 return thing
034412ca28c3 templater: fix if() to not evaluate False as bool('False')
Yuya Nishihara <yuya@tcha.org>
parents: 29826
diff changeset
311 # other objects are evaluated as strings, which means 0 is True, but
034412ca28c3 templater: fix if() to not evaluate False as bool('False')
Yuya Nishihara <yuya@tcha.org>
parents: 29826
diff changeset
312 # empty dict/list should be False as they are expected to be ''
034412ca28c3 templater: fix if() to not evaluate False as bool('False')
Yuya Nishihara <yuya@tcha.org>
parents: 29826
diff changeset
313 return bool(stringify(thing))
034412ca28c3 templater: fix if() to not evaluate False as bool('False')
Yuya Nishihara <yuya@tcha.org>
parents: 29826
diff changeset
314
34581
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
315 def evalinteger(context, mapping, arg, err=None):
28344
ac371d4c007f templater: drop redundant type conversion when evaluating integer argument
Yuya Nishihara <yuya@tcha.org>
parents: 28343
diff changeset
316 v = evalfuncarg(context, mapping, arg)
28343
a6c2310b3827 templater: factor out function that evaluates argument as integer
Yuya Nishihara <yuya@tcha.org>
parents: 28334
diff changeset
317 try:
28344
ac371d4c007f templater: drop redundant type conversion when evaluating integer argument
Yuya Nishihara <yuya@tcha.org>
parents: 28343
diff changeset
318 return int(v)
ac371d4c007f templater: drop redundant type conversion when evaluating integer argument
Yuya Nishihara <yuya@tcha.org>
parents: 28343
diff changeset
319 except (TypeError, ValueError):
34581
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
320 raise error.ParseError(err or _('not an integer'))
28343
a6c2310b3827 templater: factor out function that evaluates argument as integer
Yuya Nishihara <yuya@tcha.org>
parents: 28334
diff changeset
321
28348
ccedb17a5657 templater: factor out thin helper that evaluates argument as string
Yuya Nishihara <yuya@tcha.org>
parents: 28346
diff changeset
322 def evalstring(context, mapping, arg):
34333
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
323 return stringify(evalrawexp(context, mapping, arg))
28348
ccedb17a5657 templater: factor out thin helper that evaluates argument as string
Yuya Nishihara <yuya@tcha.org>
parents: 28346
diff changeset
324
28373
9a9dd71e882c templater: make label() take unknown symbol as color literal
Yuya Nishihara <yuya@tcha.org>
parents: 28349
diff changeset
325 def evalstringliteral(context, mapping, arg):
9a9dd71e882c templater: make label() take unknown symbol as color literal
Yuya Nishihara <yuya@tcha.org>
parents: 28349
diff changeset
326 """Evaluate given argument as string template, but returns symbol name
9a9dd71e882c templater: make label() take unknown symbol as color literal
Yuya Nishihara <yuya@tcha.org>
parents: 28349
diff changeset
327 if it is unknown"""
9a9dd71e882c templater: make label() take unknown symbol as color literal
Yuya Nishihara <yuya@tcha.org>
parents: 28349
diff changeset
328 func, data = arg
9a9dd71e882c templater: make label() take unknown symbol as color literal
Yuya Nishihara <yuya@tcha.org>
parents: 28349
diff changeset
329 if func is runsymbol:
9a9dd71e882c templater: make label() take unknown symbol as color literal
Yuya Nishihara <yuya@tcha.org>
parents: 28349
diff changeset
330 thing = func(context, mapping, data, default=data)
9a9dd71e882c templater: make label() take unknown symbol as color literal
Yuya Nishihara <yuya@tcha.org>
parents: 28349
diff changeset
331 else:
9a9dd71e882c templater: make label() take unknown symbol as color literal
Yuya Nishihara <yuya@tcha.org>
parents: 28349
diff changeset
332 thing = func(context, mapping, data)
9a9dd71e882c templater: make label() take unknown symbol as color literal
Yuya Nishihara <yuya@tcha.org>
parents: 28349
diff changeset
333 return stringify(thing)
9a9dd71e882c templater: make label() take unknown symbol as color literal
Yuya Nishihara <yuya@tcha.org>
parents: 28349
diff changeset
334
34581
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
335 _evalfuncbytype = {
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
336 bytes: evalstring,
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
337 int: evalinteger,
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
338 }
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
339
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
340 def evalastype(context, mapping, arg, typ):
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
341 """Evaluate given argument and coerce its type"""
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
342 try:
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
343 f = _evalfuncbytype[typ]
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
344 except KeyError:
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
345 raise error.ProgrammingError('invalid type specified: %r' % typ)
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
346 return f(context, mapping, arg)
ee0d74083a22 templater: store revisions as ints so min/max won't compare them as strings
Yuya Nishihara <yuya@tcha.org>
parents: 34536
diff changeset
347
25002
829faf8ab605 templater: tokenize decimal integer literal (issue4638) (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 25001
diff changeset
348 def runinteger(context, mapping, data):
829faf8ab605 templater: tokenize decimal integer literal (issue4638) (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 25001
diff changeset
349 return int(data)
829faf8ab605 templater: tokenize decimal integer literal (issue4638) (BC)
Yuya Nishihara <yuya@tcha.org>
parents: 25001
diff changeset
350
13176
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
351 def runstring(context, mapping, data):
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
352 return data
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
353
27939
7ed3a3c0cef1 templater: abort if infinite recursion detected while evaluation (issue4758)
Yuya Nishihara <yuya@tcha.org>
parents: 27892
diff changeset
354 def _recursivesymbolblocker(key):
7ed3a3c0cef1 templater: abort if infinite recursion detected while evaluation (issue4758)
Yuya Nishihara <yuya@tcha.org>
parents: 27892
diff changeset
355 def showrecursion(**args):
7ed3a3c0cef1 templater: abort if infinite recursion detected while evaluation (issue4758)
Yuya Nishihara <yuya@tcha.org>
parents: 27892
diff changeset
356 raise error.Abort(_("recursive reference '%s' in template") % key)
7ed3a3c0cef1 templater: abort if infinite recursion detected while evaluation (issue4758)
Yuya Nishihara <yuya@tcha.org>
parents: 27892
diff changeset
357 return showrecursion
7ed3a3c0cef1 templater: abort if infinite recursion detected while evaluation (issue4758)
Yuya Nishihara <yuya@tcha.org>
parents: 27892
diff changeset
358
28373
9a9dd71e882c templater: make label() take unknown symbol as color literal
Yuya Nishihara <yuya@tcha.org>
parents: 28349
diff changeset
359 def runsymbol(context, mapping, key, default=''):
35471
d6cfa722b044 templater: look up mapping table through template engine
Yuya Nishihara <yuya@tcha.org>
parents: 35421
diff changeset
360 v = context.symbol(mapping, key)
19770
0361163efbaf templater: support using templates with non-standard names from map file
Alexander Plavin <alexander@plav.in>
parents: 19390
diff changeset
361 if v is None:
27939
7ed3a3c0cef1 templater: abort if infinite recursion detected while evaluation (issue4758)
Yuya Nishihara <yuya@tcha.org>
parents: 27892
diff changeset
362 # put poison to cut recursion. we can't move this to parsing phase
7ed3a3c0cef1 templater: abort if infinite recursion detected while evaluation (issue4758)
Yuya Nishihara <yuya@tcha.org>
parents: 27892
diff changeset
363 # because "x = {x}" is allowed if "x" is a keyword. (issue4758)
7ed3a3c0cef1 templater: abort if infinite recursion detected while evaluation (issue4758)
Yuya Nishihara <yuya@tcha.org>
parents: 27892
diff changeset
364 safemapping = mapping.copy()
7ed3a3c0cef1 templater: abort if infinite recursion detected while evaluation (issue4758)
Yuya Nishihara <yuya@tcha.org>
parents: 27892
diff changeset
365 safemapping[key] = _recursivesymbolblocker(key)
19770
0361163efbaf templater: support using templates with non-standard names from map file
Alexander Plavin <alexander@plav.in>
parents: 19390
diff changeset
366 try:
27939
7ed3a3c0cef1 templater: abort if infinite recursion detected while evaluation (issue4758)
Yuya Nishihara <yuya@tcha.org>
parents: 27892
diff changeset
367 v = context.process(key, safemapping)
19770
0361163efbaf templater: support using templates with non-standard names from map file
Alexander Plavin <alexander@plav.in>
parents: 19390
diff changeset
368 except TemplateNotFound:
28373
9a9dd71e882c templater: make label() take unknown symbol as color literal
Yuya Nishihara <yuya@tcha.org>
parents: 28349
diff changeset
369 v = default
36475
e8d37838f5df templatekw: add 'requires' flag to switch to exception-safe interface
Yuya Nishihara <yuya@tcha.org>
parents: 36474
diff changeset
370 if callable(v) and getattr(v, '_requires', None) is None:
e8d37838f5df templatekw: add 'requires' flag to switch to exception-safe interface
Yuya Nishihara <yuya@tcha.org>
parents: 36474
diff changeset
371 # old templatekw: expand all keywords and resources
37073
1101d6747d2d templater: drop 'templ' from resources dict
Yuya Nishihara <yuya@tcha.org>
parents: 37071
diff changeset
372 # (TODO: deprecate this after porting web template keywords to new API)
37076
44757e6dad93 templater: introduce resourcemapper class
Yuya Nishihara <yuya@tcha.org>
parents: 37073
diff changeset
373 props = {k: context._resources.lookup(context, mapping, k)
44757e6dad93 templater: introduce resourcemapper class
Yuya Nishihara <yuya@tcha.org>
parents: 37073
diff changeset
374 for k in context._resources.knownkeys()}
37073
1101d6747d2d templater: drop 'templ' from resources dict
Yuya Nishihara <yuya@tcha.org>
parents: 37071
diff changeset
375 # pass context to _showcompatlist() through templatekw._showlist()
1101d6747d2d templater: drop 'templ' from resources dict
Yuya Nishihara <yuya@tcha.org>
parents: 37071
diff changeset
376 props['templ'] = context
35472
32c278eb876f templater: keep default resources per template engine (API)
Yuya Nishihara <yuya@tcha.org>
parents: 35471
diff changeset
377 props.update(mapping)
35588
dadbf213a765 py3: convert dict keys' to str before passing as kwargs
Pulkit Goyal <7895pulkit@gmail.com>
parents: 35485
diff changeset
378 return v(**pycompat.strkwargs(props))
36475
e8d37838f5df templatekw: add 'requires' flag to switch to exception-safe interface
Yuya Nishihara <yuya@tcha.org>
parents: 36474
diff changeset
379 if callable(v):
e8d37838f5df templatekw: add 'requires' flag to switch to exception-safe interface
Yuya Nishihara <yuya@tcha.org>
parents: 36474
diff changeset
380 # new templatekw
e8d37838f5df templatekw: add 'requires' flag to switch to exception-safe interface
Yuya Nishihara <yuya@tcha.org>
parents: 36474
diff changeset
381 try:
e8d37838f5df templatekw: add 'requires' flag to switch to exception-safe interface
Yuya Nishihara <yuya@tcha.org>
parents: 36474
diff changeset
382 return v(context, mapping)
e8d37838f5df templatekw: add 'requires' flag to switch to exception-safe interface
Yuya Nishihara <yuya@tcha.org>
parents: 36474
diff changeset
383 except ResourceUnavailable:
e8d37838f5df templatekw: add 'requires' flag to switch to exception-safe interface
Yuya Nishihara <yuya@tcha.org>
parents: 36474
diff changeset
384 # unsupported keyword is mapped to empty just like unknown keyword
e8d37838f5df templatekw: add 'requires' flag to switch to exception-safe interface
Yuya Nishihara <yuya@tcha.org>
parents: 36474
diff changeset
385 return None
13176
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
386 return v
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
387
25595
a7dd6692e5cb templater: move runtemplate function out of buildmap/runmap pair
Yuya Nishihara <yuya@tcha.org>
parents: 25580
diff changeset
388 def runtemplate(context, mapping, template):
34333
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
389 for arg in template:
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
390 yield evalrawexp(context, mapping, arg)
25595
a7dd6692e5cb templater: move runtemplate function out of buildmap/runmap pair
Yuya Nishihara <yuya@tcha.org>
parents: 25580
diff changeset
391
13176
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
392 def runfilter(context, mapping, data):
26125
c990afab2243 templater: drop unneeded destructuring of argument tuple at buildfilter
Yuya Nishihara <yuya@tcha.org>
parents: 26124
diff changeset
393 arg, filt = data
c990afab2243 templater: drop unneeded destructuring of argument tuple at buildfilter
Yuya Nishihara <yuya@tcha.org>
parents: 26124
diff changeset
394 thing = evalfuncarg(context, mapping, arg)
17383
099c778ceb33 templater: abort when a template filter raises an exception (issue2987)
Neil Kodner <neilk@fb.com>
parents: 17334
diff changeset
395 try:
24280
6c55e37ba5f2 templater: allow piping generator-type function output to filters
Yuya Nishihara <yuya@tcha.org>
parents: 24240
diff changeset
396 return filt(thing)
17383
099c778ceb33 templater: abort when a template filter raises an exception (issue2987)
Neil Kodner <neilk@fb.com>
parents: 17334
diff changeset
397 except (ValueError, AttributeError, TypeError):
31927
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
398 sym = findsymbolicname(arg)
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
399 if sym:
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
400 msg = (_("template filter '%s' is not compatible with keyword '%s'")
34838
d3ea6a1c798f templater: use pycompat.sysbytes to bytes-ify some __name__ attrs
Augie Fackler <augie@google.com>
parents: 34808
diff changeset
401 % (pycompat.sysbytes(filt.__name__), sym))
17383
099c778ceb33 templater: abort when a template filter raises an exception (issue2987)
Neil Kodner <neilk@fb.com>
parents: 17334
diff changeset
402 else:
34838
d3ea6a1c798f templater: use pycompat.sysbytes to bytes-ify some __name__ attrs
Augie Fackler <augie@google.com>
parents: 34808
diff changeset
403 msg = (_("incompatible use of template filter '%s'")
d3ea6a1c798f templater: use pycompat.sysbytes to bytes-ify some __name__ attrs
Augie Fackler <augie@google.com>
parents: 34808
diff changeset
404 % pycompat.sysbytes(filt.__name__))
31927
2abc556dbe92 templater: find keyword name more thoroughly on filtering error
Yuya Nishihara <yuya@tcha.org>
parents: 31926
diff changeset
405 raise error.Abort(msg)
13176
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
406
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
407 def runmap(context, mapping, data):
34333
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
408 darg, targ = data
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
409 d = evalrawexp(context, mapping, darg)
27891
ac8c0ee5c3b8 templater: make _hybrid not callable to avoid conflicting semantics
Yuya Nishihara <yuya@tcha.org>
parents: 27637
diff changeset
410 if util.safehasattr(d, 'itermaps'):
28349
7cb2f2438f85 templater: handle exception when applying map operator to non-iterable object
Yuya Nishihara <yuya@tcha.org>
parents: 28348
diff changeset
411 diter = d.itermaps()
7cb2f2438f85 templater: handle exception when applying map operator to non-iterable object
Yuya Nishihara <yuya@tcha.org>
parents: 28348
diff changeset
412 else:
7cb2f2438f85 templater: handle exception when applying map operator to non-iterable object
Yuya Nishihara <yuya@tcha.org>
parents: 28348
diff changeset
413 try:
7cb2f2438f85 templater: handle exception when applying map operator to non-iterable object
Yuya Nishihara <yuya@tcha.org>
parents: 28348
diff changeset
414 diter = iter(d)
7cb2f2438f85 templater: handle exception when applying map operator to non-iterable object
Yuya Nishihara <yuya@tcha.org>
parents: 28348
diff changeset
415 except TypeError:
34333
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
416 sym = findsymbolicname(darg)
34331
e473f482b9b3 templater: use helper function to get name of non-iterable keyword
Yuya Nishihara <yuya@tcha.org>
parents: 34294
diff changeset
417 if sym:
e473f482b9b3 templater: use helper function to get name of non-iterable keyword
Yuya Nishihara <yuya@tcha.org>
parents: 34294
diff changeset
418 raise error.ParseError(_("keyword '%s' is not iterable") % sym)
28349
7cb2f2438f85 templater: handle exception when applying map operator to non-iterable object
Yuya Nishihara <yuya@tcha.org>
parents: 28348
diff changeset
419 else:
7cb2f2438f85 templater: handle exception when applying map operator to non-iterable object
Yuya Nishihara <yuya@tcha.org>
parents: 28348
diff changeset
420 raise error.ParseError(_("%r is not iterable") % d)
17631
0b241d7a8c62 templating: make new-style templating features work with command line lists
Matt Mackall <mpm@selenic.com>
parents: 17383
diff changeset
421
31807
e6eb86b154c5 templater: provide loop counter as "index" keyword
Yuya Nishihara <yuya@tcha.org>
parents: 31806
diff changeset
422 for i, v in enumerate(diter):
31806
8f203b491bb5 templater: rename variable "i" to "v" in runmap()
Yuya Nishihara <yuya@tcha.org>
parents: 31527
diff changeset
423 if isinstance(v, dict):
37077
2891079fb0c0 templater: factor out function to create mapping dict for nested evaluation
Yuya Nishihara <yuya@tcha.org>
parents: 37076
diff changeset
424 lm = context.overlaymap(mapping, v)
2891079fb0c0 templater: factor out function to create mapping dict for nested evaluation
Yuya Nishihara <yuya@tcha.org>
parents: 37076
diff changeset
425 lm['index'] = i
34333
e60c601953d7 templater: extract helper to just evaluate template expression
Yuya Nishihara <yuya@tcha.org>
parents: 34332
diff changeset
426 yield evalrawexp(context, lm, targ)
13176
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
427 else:
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
428 # v is not an iterable of dicts, this happen when 'key'
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
429 # has been fully expanded already and format is useless.
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
430 # If so, return the expanded value.
31806
8f203b491bb5 templater: rename variable "i" to "v" in runmap()
Yuya Nishihara <yuya@tcha.org>
parents: 31527
diff changeset
431 yield v
13176
895f54a79c6e templater: use the parser.py parser to extend the templater syntax
Matt Mackall <mpm@selenic.com>
parents: 13175
diff changeset
432
34535
78590585c0db templater: add dot operator to easily access a sub item
Yuya Nishihara <yuya@tcha.org>
parents: 34534
diff changeset
433 def runmember(context, mapping, data):
78590585c0db templater: add dot operator to easily access a sub item
Yuya Nishihara <yuya@tcha.org>
parents: 34534
diff changeset
434 darg, memb = data
78590585c0db templater: add dot operator to easily access a sub item
Yuya Nishihara <yuya@tcha.org>
parents: 34534
diff changeset
435 d = evalrawexp(context, mapping, darg)
78590585c0db templater: add dot operator to easily access a sub item
Yuya Nishihara <yuya@tcha.org>
parents: 34534
diff changeset
436 if util.safehasattr(d, 'tomap'):
37077
2891079fb0c0 templater: factor out function to create mapping dict for nested evaluation
Yuya Nishihara <yuya@tcha.org>
parents: 37076
diff changeset
437 lm = context.overlaymap(mapping, d.tomap())
34535
78590585c0db templater: add dot operator to easily access a sub item
Yuya Nishihara <yuya@tcha.org>
parents: 34534
diff changeset
438 return runsymbol(context, lm, memb)
34536
4c1cfe54c08d templater: extend dot operator as a short for get(dict, key)
Yuya Nishihara <yuya@tcha.org>
parents: 34535
diff changeset
439 if util.safehasattr(d, 'get'):
36919
da2977e674a3 templater: extract template evaluation utility to new module
Yuya Nishihara <yuya@tcha.org>
parents: 36918
diff changeset
440 return getdictitem(d, memb)
34535
78590585c0db templater: add dot operator to easily access a sub item
Yuya Nishihara <yuya@tcha.org>
parents: 34534
diff changeset
441
78590585c0db templater: add dot operator to easily access a sub item
Yuya Nishihara <yuya@tcha.org>
parents: 34534
diff changeset
442 sym = findsymbolicname(darg)
78590585c0db templater: add dot operator to easily access a sub item
Yuya Nishihara <yuya@tcha.org>
parents: 34534
diff changeset
443 if sym:
78590585c0db templater: add dot operator to easily access a sub item
Yuya Nishihara <yuya@tcha.org>
parents: 34534
diff changeset
444 raise error.ParseError(_("keyword '%s' has no member") % sym)
78590585c0db templater: add dot operator to easily access a sub item
Yuya Nishihara <yuya@tcha.org>
parents: 34534
diff changeset
445 else:
36574
ab7f86a748e6 py3: drop b'' from error message generated by templater.runmember()
Yuya Nishihara <yuya@tcha.org>
parents: 36573
diff changeset
446 raise error.ParseError(_("%r has no member") % pycompat.bytestr(d))
34535
78590585c0db templater: add dot operator to easily access a sub item
Yuya Nishihara <yuya@tcha.org>
parents: 34534
diff changeset
447
30115
8e42dfde93d1 templater: provide arithmetic operations on integers
Simon Farnsworth <simonfar@fb.com>
parents: 30083
diff changeset
448 def runnegate(context, mapping, data):
8e42dfde93d1 templater: provide arithmetic operations on integers
Simon Farnsworth <simonfar@fb.com>
parents: 30083
diff changeset
449 data = evalinteger(context, mapping, data,
8e42dfde93d1 templater: provide arithmetic operations on integers
Simon Farnsworth <simonfar@fb.com>
parents: 30083
diff changeset
450 _('negation needs an integer argument'))
8e42dfde93d1 templater: provide arithmetic operations on integers
Simon Farnsworth <simonfar@fb.com>
parents: 30083
diff changeset
451 return -data
8e42dfde93d1 templater: provide arithmetic operations on integers
Simon Farnsworth <simonfar@fb.com>
parents: 30083
diff changeset
452
8e42dfde93d1 templater: provide arithmetic operations on integers
Simon Farnsworth <simonfar@fb.com>
parents: 30083
diff changeset
453 def runarithmetic(context, mapping, data):
8e42dfde93d1 templater: provide arithmetic operations on integers
Simon Farnsworth <simonfar@fb.com>
parents: 30083
diff changeset
454 func, left, right = data
8e42dfde93d1 templater: provide arithmetic operations on integers
Simon Farnsworth <simonfar@fb.com>
parents: 30083
diff changeset
455 left = evalinteger(context, mapping, left,
8e42dfde93d1 templater: provide arithmetic operations on integers
Simon Farnsworth <simonfar@fb.com>
parents: 30083
diff changeset
456 _('arithmetic only defined on integers'))
8e42dfde93d1 templater: provide arithmetic operations on integers
Simon Farnsworth <simonfar@fb.com>
parents: 30083
diff changeset
457 right = evalinteger(context, mapping, right,
8e42dfde93d1 templater: provide arithmetic operations on integers
Simon Farnsworth <simonfar@fb.com>
parents: 30083
diff changeset
458 _('arithmetic only defined on integers'))
30116
1c01fa29630f templater: handle division by zero in arithmetic
Simon Farnsworth <simonfar@fb.com>
parents: 30115
diff changeset
459 try:
1c01fa29630f templater: handle division by zero in arithmetic
Simon Farnsworth <simonfar@fb.com>
parents: 30115
diff changeset
460 return func(left, right)
1c01fa29630f templater: handle division by zero in arithmetic
Simon Farnsworth <simonfar@fb.com>
parents: 30115
diff changeset
461 except ZeroDivisionError:
1c01fa29630f templater: handle division by zero in arithmetic
Simon Farnsworth <simonfar@fb.com>
parents: 30115
diff changeset
462 raise error.Abort(_('division by zero is not defined'))
30115
8e42dfde93d1 templater: provide arithmetic operations on integers
Simon Farnsworth <simonfar@fb.com>
parents: 30083
diff changeset
463
36919
da2977e674a3 templater: extract template evaluation utility to new module
Yuya Nishihara <yuya@tcha.org>
parents: 36918
diff changeset
464 def getdictitem(dictarg, key):
34534
b3073e175c17 templater: wrap get/min/max result so map operation can apply to element
Yuya Nishihara <yuya@tcha.org>
parents: 34459
diff changeset
465 val = dictarg.get(key)
b3073e175c17 templater: wrap get/min/max result so map operation can apply to element
Yuya Nishihara <yuya@tcha.org>
parents: 34459
diff changeset
466 if val is None:
b3073e175c17 templater: wrap get/min/max result so map operation can apply to element
Yuya Nishihara <yuya@tcha.org>
parents: 34459
diff changeset
467 return
36927
32f9b7e3f056 templater: move hybrid class and functions to templateutil module
Yuya Nishihara <yuya@tcha.org>
parents: 36926
diff changeset
468 return wraphybridvalue(dictarg, key, val)