rebaseline.py: --tests and --configs are now FILTERS within json results

tools/rebaseline.py

Index: tools/rebaseline.py
===================================================================
--- tools/rebaseline.py	(revision 9460)
+++ tools/rebaseline.py	(working copy)
@@ -173,23 +173,12 @@
                expectations_subdir + '/' + builder_name + '/' +
                expectations_subdir + '/' + infilename)
 
-        # Try to download this file, but if that fails, keep going...
+        # Try to download this file.
         #
-        # This not treated as a fatal failure because not all
-        # platforms generate all configs (e.g., Android does not
-        # generate PDF).
-        #
-        # We could tweak the list of configs within this tool to
-        # reflect which combinations the bots actually generate, and
-        # then fail if any of those expected combinations are
-        # missing... but then this tool would become useless every
-        # time someone tweaked the configs on the bots without
-        # updating this script.
-        try:
-            self._DownloadFile(source_url=url, dest_filename=outfilename)
-        except CommandFailedException:
-            print '# Couldn\'t fetch ' + url
-            return
+        # If the download fails, this will raise an exception and halt the
+        # rebaseline process.  Since the JSON results summary told us that
+        # this file needed rebaselining, we ought to be able to download it...
+        self._DownloadFile(source_url=url, dest_filename=outfilename)

[epoger, 2013/06/06 17:53:29]

Patchset 1 makes the script fail early if any downloads fail.  (Once we are only
downloading images that the JSON summary tells us need rebaselining, downloads
should never fail!)

 
         # Add this file to version control (if it isn't already).
         if self._is_svn_checkout: