MoinMoin: attachment:Annotate-1.9-2.py of ActionMarket/Annotate

   1 # -*- coding: iso-8859-1 -*-
   2 """
   3     MoinMoin - show diff between 2 page revisions
   4 
   5     @copyright: 2010,2012 Henryk Gerlach <hgerlach@gmx.de>
   6     @license: GNU GPL, see COPYING for details.
   7 """
   8 
   9 
  10 import difflib
  11 from MoinMoin import log
  12 logging = log.getLogger(__name__)
  13 
  14 from MoinMoin import wikiutil
  15 from MoinMoin.logfile import editlog
  16 from MoinMoin.Page import Page
  17 from MoinMoin.widget import html
  18 
  19 def execute(pagename, request):
  20     """ Handle "action=annotate"
  21         checking for parameter rev 
  22     """
  23     if not request.user.may.read(pagename):
  24         Page(request, pagename).send_page()
  25         return
  26 
  27     try:
  28         rev = int(request.values.get('rev', None))
  29     except StandardError:
  30         rev = None
  31 
  32     currentrev = Page(request, pagename).current_rev()
  33     if rev == None or rev > currentrev:
  34         rev = currentrev
  35 
  36     # spacing flag?
  37     ignorews = int(request.values.get('ignorews', 0))
  38 
  39     _ = request.getText
  40 
  41 
  42     def merge_annotation(oldlines, newlines, **kw):
  43         """
  44         Find changes between oldlines and newlines.
  45     
  46         @param oldlines: list of old decoration and text lines (decoration, line)
  47         @param newlines: list of new decoration and text lines (decoration, line)
  48         @keyword ignorews: if 1: ignore whitespace
  49         @rtype: list
  50         @return: changed old lines get replaced by new lines with new decoration
  51         """
  52         false = lambda s: None
  53         if kw.get('ignorews', 0):
  54             d = difflib.Differ(false)
  55         else:
  56             d = difflib.Differ(false, false)
  57     
  58         lines = list(d.compare( map(lambda s: s[1], oldlines), map(lambda s: s[1], newlines)))
  59     
  60         result = []
  61         iold = inew = 0
  62         for l in lines:
  63             if l[0] == " ":
  64                 result.append( oldlines[iold] )
  65                 iold += 1
  66                 inew += 1
  67             if l[0] == "-": 
  68                 iold+=1
  69             if l[0] == "+":
  70                 result.append( newlines[inew] )
  71                 inew += 1
  72         return result
  73 
  74     def annotate(rev):
  75         page   = Page(request, pagename, rev=rev)
  76         log    = page.editlog_entry()
  77         editor = log.getEditor(request) or _('N/A'),
  78         date   = request.user.getFormattedDateTime(wikiutil.version2timestamp(log.ed_time_usecs)) or _('N/A')
  79         return map(lambda l: [(rev, editor, date), l], page.get_raw_body().split("\n"))
  80     
  81     allrevs = map(lambda l: int(l.rev), list(editlog.EditLog(request, rootpagename=pagename)))
  82     if not allrevs:
  83        #The page has no revisions. Maybe a default page.
  84        currtext = []
  85     else:
  86        rev_iter = allrevs.pop(0)
  87        currtext = annotate(rev_iter)
  88     for rev_iter in allrevs:
  89         oldtext = currtext
  90         currtext = annotate(rev_iter)
  91         currtext = merge_annotation(oldtext, currtext, ignorews=ignorews)
  92         if rev_iter == rev: break
  93 
  94 
  95 
  96     # build and send the page
  97     page = Page(request, pagename)
  98     def render_action(text, query, **kw):
  99         kw.update(dict(rel='nofollow'))
 100         return page.link_to(request, text, querystr=query, **kw)
 101 
 102     f = request.formatter
 103     if rev == currentrev:
 104         request.theme.send_title(_('Annotate for "%s"') % (pagename, ), pagename=pagename)
 105     else:
 106         request.theme.send_title(_('Annotate for "%s" revison %d') % (pagename, rev ), pagename=pagename)
 107 
 108     # Start content (important for RTL support)
 109     request.write(request.formatter.startContent("content"))
 110 
 111     request.write("<table><tr><th>"+_("Line")+"</th><th>"+_("Editor")+"</th><th>"+_("Date")+"</th><th>"+_("Rev")+"</th></tr>")
 112     for annotation, l in currtext:
 113         rev, editor, date = annotation
 114         request.write("<tr><td>") 
 115         request.write(f.text(l))
 116         request.write("</td><td>"+ editor[0] + "</td><td>"+date+"</td>")
 117         request.write("<td>"+render_action(_(str(rev)), {'action': 'recall', 'rev': '%d' % rev})+"</td></tr>")
 118 
 119     request.write("</table>")
 120     request.write(request.formatter.endContent())
 121     request.theme.send_footer(pagename)
 122     request.theme.send_closing_html()