404563416231e2b5a57eeee4fe09b0d9d2b77e60
max
  Wed Apr 2 05:50:41 2014 -0700
changing hgLiftOver strategy in the browserbox: downloading liftoverfiles to local disk instead of streaming them through http, refs #11957
and refs #12717

diff --git src/hg/hgLiftOver/hgLiftOver.c src/hg/hgLiftOver/hgLiftOver.c
index 7e60caf..30a34a8 100644
--- src/hg/hgLiftOver/hgLiftOver.c
+++ src/hg/hgLiftOver/hgLiftOver.c
@@ -491,30 +491,32 @@
     /* setup output files -- one for converted lines, the other
      * for lines that could not be mapped */
     makeTempName(&mappedTn, HGLFT, ".bed");
     makeTempName(&unmappedTn, HGLFT, ".err");
     mapped = mustOpen(mappedTn.forCgi, "w");
     chmod(mappedTn.forCgi, 0666);
     unmapped = mustOpen(unmappedTn.forCgi, "w");
     chmod(unmappedTn.forCgi, 0666);
 
     fromDb = cgiString(HGLFT_FROMDB_VAR);
     toDb = cgiString(HGLFT_TODB_VAR);
     chainFile = liftOverChainFile(fromDb, toDb);
     if (chainFile == NULL)
         errAbort("ERROR: Can't convert from %s to %s: no chain file loaded",
                                 fromDb, toDb);
+    chainFile = hReplaceGbdbMustDownload(chainFile);
+
     readLiftOverMap(chainFile, chainHash);
     lft = liftOverSniff(oldTn.forCgi);
     if (lft == bed)
 	ct = liftOverBed(oldTn.forCgi, chainHash, 
 			minMatch, minBlocks, 0, minSizeQ,
 			minChainT, 0,
 			fudgeThick, mapped, unmapped, multiple, NULL, &errCt);
     else if (lft == positions)
 	ct = liftOverPositions(oldTn.forCgi, chainHash, 
 			minMatch, minBlocks, 0, minSizeQ,
 			minChainT, 0,
 			fudgeThick, mapped, unmapped, multiple, NULL, &errCt);
     if (ct == -1)
         /* programming error */
         errAbort("ERROR: Unsupported data format.\n");