annotate rhodecode/lib/vcs/utils/annotate.py @ 3941:3208aaefc9ca beta

Moved all Mercurial imports into hgcompat from vcs
author Marcin Kuzminski <marcin@python-works.com>
date Mon, 03 Jun 2013 23:54:52 +0200
parents d7488551578e
children 7e5f8c12a3fc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 import StringIO
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2
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3 from pygments.formatters import HtmlFormatter
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4 from pygments import highlight
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5
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6 from rhodecode.lib.vcs.exceptions import VCSError
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7 from rhodecode.lib.vcs.nodes import FileNode
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8
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9
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10 def annotate_highlight(filenode, annotate_from_changeset_func=None,
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11 order=None, headers=None, **options):
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12 """
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13 Returns html portion containing annotated table with 3 columns: line
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14 numbers, changeset information and pygmentized line of code.
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15
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16 :param filenode: FileNode object
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17 :param annotate_from_changeset_func: function taking changeset and
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18 returning single annotate cell; needs break line at the end
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19 :param order: ordered sequence of ``ls`` (line numbers column),
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20 ``annotate`` (annotate column), ``code`` (code column); Default is
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21 ``['ls', 'annotate', 'code']``
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22 :param headers: dictionary with headers (keys are whats in ``order``
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23 parameter)
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24 """
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25 options['linenos'] = True
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26 formatter = AnnotateHtmlFormatter(filenode=filenode, order=order,
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27 headers=headers,
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28 annotate_from_changeset_func=annotate_from_changeset_func, **options)
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29 lexer = filenode.lexer
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30 highlighted = highlight(filenode.content, lexer, formatter)
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31 return highlighted
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32
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33
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34 class AnnotateHtmlFormatter(HtmlFormatter):
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35
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36 def __init__(self, filenode, annotate_from_changeset_func=None,
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37 order=None, **options):
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38 """
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39 If ``annotate_from_changeset_func`` is passed it should be a function
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40 which returns string from the given changeset. For example, we may pass
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41 following function as ``annotate_from_changeset_func``::
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42
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43 def changeset_to_anchor(changeset):
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44 return '<a href="/changesets/%s/">%s</a>\n' %\
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45 (changeset.id, changeset.id)
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46
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47 :param annotate_from_changeset_func: see above
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48 :param order: (default: ``['ls', 'annotate', 'code']``); order of
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49 columns;
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50 :param options: standard pygment's HtmlFormatter options, there is
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51 extra option tough, ``headers``. For instance we can pass::
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52
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53 formatter = AnnotateHtmlFormatter(filenode, headers={
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54 'ls': '#',
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55 'annotate': 'Annotate',
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56 'code': 'Code',
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57 })
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58
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59 """
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60 super(AnnotateHtmlFormatter, self).__init__(**options)
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61 self.annotate_from_changeset_func = annotate_from_changeset_func
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62 self.order = order or ('ls', 'annotate', 'code')
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63 headers = options.pop('headers', None)
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64 if headers and not ('ls' in headers and 'annotate' in headers and
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65 'code' in headers):
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66 raise ValueError("If headers option dict is specified it must "
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67 "all 'ls', 'annotate' and 'code' keys")
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68 self.headers = headers
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69 if isinstance(filenode, FileNode):
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70 self.filenode = filenode
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71 else:
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72 raise VCSError("This formatter expect FileNode parameter, not %r"
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73 % type(filenode))
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74
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75 def annotate_from_changeset(self, changeset):
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76 """
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77 Returns full html line for single changeset per annotated line.
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78 """
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79 if self.annotate_from_changeset_func:
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80 return self.annotate_from_changeset_func(changeset)
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81 else:
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82 return ''.join((changeset.id, '\n'))
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83
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84 def _wrap_tablelinenos(self, inner):
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85 dummyoutfile = StringIO.StringIO()
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86 lncount = 0
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87 for t, line in inner:
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88 if t:
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89 lncount += 1
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90 dummyoutfile.write(line)
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91
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92 fl = self.linenostart
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93 mw = len(str(lncount + fl - 1))
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94 sp = self.linenospecial
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95 st = self.linenostep
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96 la = self.lineanchors
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97 aln = self.anchorlinenos
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98 if sp:
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99 lines = []
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100
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101 for i in range(fl, fl + lncount):
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102 if i % st == 0:
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103 if i % sp == 0:
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104 if aln:
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105 lines.append('<a href="#%s-%d" class="special">'
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106 '%*d</a>' %
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107 (la, i, mw, i))
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108 else:
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109 lines.append('<span class="special">'
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110 '%*d</span>' % (mw, i))
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111 else:
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112 if aln:
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113 lines.append('<a href="#%s-%d">'
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114 '%*d</a>' % (la, i, mw, i))
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115 else:
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116 lines.append('%*d' % (mw, i))
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117 else:
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118 lines.append('')
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119 ls = '\n'.join(lines)
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120 else:
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121 lines = []
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122 for i in range(fl, fl + lncount):
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123 if i % st == 0:
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124 if aln:
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125 lines.append('<a href="#%s-%d">%*d</a>' \
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126 % (la, i, mw, i))
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127 else:
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128 lines.append('%*d' % (mw, i))
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129 else:
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130 lines.append('')
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131 ls = '\n'.join(lines)
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132
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133 annotate_changesets = [tup[1] for tup in self.filenode.annotate]
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134 # If pygments cropped last lines break we need do that too
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135 ln_cs = len(annotate_changesets)
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136 ln_ = len(ls.splitlines())
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137 if ln_cs > ln_:
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138 annotate_changesets = annotate_changesets[:ln_ - ln_cs]
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139 annotate = ''.join((self.annotate_from_changeset(changeset)
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140 for changeset in annotate_changesets))
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141 # in case you wonder about the seemingly redundant <div> here:
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142 # since the content in the other cell also is wrapped in a div,
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143 # some browsers in some configurations seem to mess up the formatting.
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144 '''
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145 yield 0, ('<table class="%stable">' % self.cssclass +
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146 '<tr><td class="linenos"><div class="linenodiv"><pre>' +
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147 ls + '</pre></div></td>' +
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148 '<td class="code">')
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149 yield 0, dummyoutfile.getvalue()
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150 yield 0, '</td></tr></table>'
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151
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152 '''
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153 headers_row = []
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154 if self.headers:
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155 headers_row = ['<tr class="annotate-header">']
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156 for key in self.order:
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157 td = ''.join(('<td>', self.headers[key], '</td>'))
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158 headers_row.append(td)
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159 headers_row.append('</tr>')
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160
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161 body_row_start = ['<tr>']
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162 for key in self.order:
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163 if key == 'ls':
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164 body_row_start.append(
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165 '<td class="linenos"><div class="linenodiv"><pre>' +
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166 ls + '</pre></div></td>')
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167 elif key == 'annotate':
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168 body_row_start.append(
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169 '<td class="annotate"><div class="annotatediv"><pre>' +
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170 annotate + '</pre></div></td>')
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171 elif key == 'code':
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172 body_row_start.append('<td class="code">')
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173 yield 0, ('<table class="%stable">' % self.cssclass +
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174 ''.join(headers_row) +
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175 ''.join(body_row_start)
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176 )
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177 yield 0, dummyoutfile.getvalue()
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178 yield 0, '</td></tr></table>'