Mercurial > hg
annotate hgext/highlight.py @ 6403:f615ece5fec3
hgweb: remove dead code
author | Benoit Boissinot <benoit.boissinot@ens-lyon.org> |
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date | Sat, 29 Mar 2008 21:15:34 +0100 |
parents | 55bc0a035e1f |
children | 938319418d8c |
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extension for synax highlighting in the hgweb file revision view
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1 """ |
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2 This is Mercurial extension for syntax highlighting in the file |
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3 revision view of hgweb. |
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4 |
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5 It depends on the pygments syntax highlighting library: |
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6 http://pygments.org/ |
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7 |
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8 To enable the extension add this to hgrc: |
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9 |
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10 [extensions] |
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11 hgext.highlight = |
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12 |
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13 There is a single configuration option: |
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14 |
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15 [web] |
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16 pygments_style = <style> |
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17 |
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18 The default is 'colorful'. If this is changed the corresponding CSS |
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19 file should be re-generated by running |
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20 |
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21 # pygmentize -f html -S <newstyle> |
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22 |
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23 -- Adam Hupp <adam@hupp.org> |
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24 """ |
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25 |
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26 from mercurial import demandimport |
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27 demandimport.ignore.extend(['pkgutil', 'pkg_resources', '__main__',]) |
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28 |
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29 from mercurial.hgweb import webcommands, webutil |
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30 from mercurial import util |
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31 from mercurial.templatefilters import filters |
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32 |
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33 from pygments import highlight |
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34 from pygments.util import ClassNotFound |
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35 from pygments.lexers import guess_lexer, guess_lexer_for_filename, TextLexer |
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36 from pygments.formatters import HtmlFormatter |
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37 |
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38 SYNTAX_CSS = ('\n<link rel="stylesheet" href="#staticurl#highlight.css" ' |
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39 'type="text/css" />') |
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40 |
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41 def pygmentize(field, fctx, style, tmpl): |
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42 |
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43 # append a <link ...> to the syntax highlighting css |
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44 old_header = ''.join(tmpl('header')) |
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45 if SYNTAX_CSS not in old_header: |
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46 new_header = old_header + SYNTAX_CSS |
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47 tmpl.cache['header'] = new_header |
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48 |
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49 text = fctx.data() |
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50 if util.binary(text): |
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51 return |
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52 |
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53 # To get multi-line strings right, we can't format line-by-line |
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54 try: |
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55 lexer = guess_lexer_for_filename(fctx.path(), text, |
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56 encoding=util._encoding) |
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57 except ClassNotFound: |
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58 try: |
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59 lexer = guess_lexer(text, encoding=util._encoding) |
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60 except ClassNotFound: |
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61 lexer = TextLexer(encoding=util._encoding) |
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62 |
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63 formatter = HtmlFormatter(style=style, encoding=util._encoding) |
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64 |
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65 colorized = highlight(text, lexer, formatter) |
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66 # strip wrapping div |
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67 colorized = colorized[:colorized.find('\n</pre>')] |
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68 colorized = colorized[colorized.find('<pre>')+5:] |
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69 coloriter = iter(colorized.splitlines()) |
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70 |
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71 filters['colorize'] = lambda x: coloriter.next() |
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72 |
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73 oldl = tmpl.cache[field] |
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74 newl = oldl.replace('line|escape', 'line|colorize') |
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75 tmpl.cache[field] = newl |
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76 |
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77 web_filerevision = webcommands._filerevision |
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78 web_annotate = webcommands.annotate |
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79 |
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80 def filerevision_highlight(web, tmpl, fctx): |
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81 style = web.config('web', 'pygments_style', 'colorful') |
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82 pygmentize('fileline', fctx, style, tmpl) |
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83 return web_filerevision(web, tmpl, fctx) |
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84 |
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85 def annotate_highlight(web, req, tmpl): |
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86 fctx = webutil.filectx(web.repo, req) |
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87 style = web.config('web', 'pygments_style', 'colorful') |
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88 pygmentize('annotateline', fctx, style, tmpl) |
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89 return web_annotate(web, req, tmpl) |
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90 |
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91 # monkeypatch in the new version |
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92 |
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93 webcommands._filerevision = filerevision_highlight |
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94 webcommands.annotate = annotate_highlight |