src/utils/raMerge/raMerge.c 1.3

Index: src/utils/raMerge/raMerge.c
===================================================================
RCS file: /projects/compbio/cvsroot/kent/src/utils/raMerge/raMerge.c,v
retrieving revision 1.2
retrieving revision 1.3
diff -b -B -U 4 -r1.2 -r1.3
--- src/utils/raMerge/raMerge.c	13 Mar 2007 01:41:20 -0000	1.2
+++ src/utils/raMerge/raMerge.c	23 Nov 2009 07:38:17 -0000	1.3
@@ -7,9 +7,9 @@
 #include "ra.h"
 
 static char const rcsid[] = "$Id$";
 
-boolean dupeOk = FALSE, uniqDupeOk = FALSE;
+boolean dupeOk = FALSE, firstOnly = FALSE;
 
 void usage()
 /* Explain usage and exit. */
 {
@@ -19,13 +19,15 @@
   "usage:\n"
   "   raMerge keyField file1.ra file2.ra ... fileN.ra\n"
   "options:\n"
   "   -dupeOk - will pass through multiple instances of fields with same name.\n"
+  "   -firstOnly - only keep records that are started in the first file\n"
   );
 }
 
 static struct optionSpec options[] = {
    {"dupeOk", OPTION_BOOLEAN},
+   {"firstOnly", OPTION_BOOLEAN},
    {NULL, 0},
 };
 
 void raMerge(char *keyField, int raCount, char *raFiles[])
@@ -33,8 +35,9 @@
  * concatenation for the most part.. */
 {
 struct hash *outerHash = hashNew(20);
 int i;
+boolean isFirstFile = TRUE;
 for (i=0; i<raCount; ++i)
     {
     struct lineFile *lf = lineFileOpen(raFiles[i], TRUE);
     struct hash *newRa;
@@ -45,9 +48,12 @@
 	    errAbort("Missing %s field in record ending line %d of %s", keyField,
 		    lf->lineIx, lf->fileName);
 	struct hash *oldRa = hashFindVal(outerHash, id);
 	if (oldRa == NULL)
+	    {
+	    if (isFirstFile || !firstOnly)
 	    hashAdd(outerHash, id, newRa);
+	    }
 	else
 	    {
 	    struct hashCookie cookie = hashFirst(newRa);
 	    struct hashEl *hel;
@@ -63,8 +69,9 @@
 	    hashFree(&newRa);
 	    }
 	}
     lineFileClose(&lf);
+    isFirstFile = FALSE;
     }
 
 struct hashEl *outerHel, *outerList = hashElListHash(outerHash);
 slSort(&outerList, hashElCmp);
@@ -92,7 +99,8 @@
 optionInit(&argc, argv, options);
 if (argc < 3)
     usage();
 dupeOk = optionExists("dupeOk");
+firstOnly = optionExists("firstOnly");
 raMerge(argv[1], argc-2, argv+2);
 return 0;
 }