[viewvc-dev] [PATCH] vclib change to limit results in subversion log retrieval

The intent of this change is to limit the number of items returned from fetch_log.  This reduces the size of the data set returned.  As already pointed out, I did not know about the pagination logic when I did this.  I originally trimmed the history after this function returns, but the speedup was not realized until I added the array slice here, which is probably due to the sorting.  If options does not contain a num_revs item, then (I think) the array slice will return the whole array, thereby keeping this change passive with the previous version.

--- viewvc_1_0_4/lib/vclib/svn/__init__.py      2007-11-29 16:46:29.000000000 -0600
+++ viewvc/lib/vclib/svn/__init__.py    2007-11-12 16:45:04.000000000 -0600
@@ -364,7 +364,8 @@
       revs.append(rev)
   else:
     history_set = _get_history(svnrepos, full_name, which_rev, options)
-    history_revs = history_set.keys()
+    nrevs = int(options.get('num_revs')) + 1
+    history_revs = history_set.keys()[-nrevs:-1]
     history_revs.sort()
     history_revs.reverse()
     subpool = core.svn_pool_create(pool)

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