851d782e10f818584974de056b992ae15d12abfd braney Thu Jun 9 12:27:46 2016 -0700 make sure that bigChain custom tracks have a "linkDataUrl" #17325 diff --git src/hg/hgTracks/chainTrack.c src/hg/hgTracks/chainTrack.c index 0a4310a..95d873c 100644 --- src/hg/hgTracks/chainTrack.c +++ src/hg/hgTracks/chainTrack.c @@ -148,31 +148,38 @@ int maxOverLeft = 0, maxOverRight = 0; int overLeft, overRight; if (tg->items == NULL) /*Exit Early if nothing to do */ return; void *closure; struct sqlClosure sqlClosure; struct bbClosure bbClosure; linkRetrieveFunc queryFunc; if (tg->isBigBed) { closure = &bbClosure; queryFunc = doBbQuery; char *fileName = trackDbSetting(tg->tdb, "linkDataUrl"); + if (fileName == NULL) + { + warn("Cannot find linkDataUrl in custom track \"%s\"\n", tg->shortLabel); + return; + } struct bbiFile *bbi = bigBedFileOpen(fileName); + if (bbi == NULL) + return; bbClosure.bbi = bbi; } else { closure = &sqlClosure; queryFunc = doQuery; sqlClosure.conn = hAllocConn(database); } lm = lmInit(1024*4); hash = newHash(0); /* Make up a hash of all linked features keyed by * id, which is held in the extras field. To * avoid burning memory on full chromosome views