ec2f9cd20b7c6d615c233ab4f16be579b9c85ae0
braney
  Tue Nov 15 15:48:41 2022 -0800
put track duplication under hg.conf control

diff --git src/hg/inc/dupTrack.h src/hg/inc/dupTrack.h
index 0f9f517..734f764 100644
--- src/hg/inc/dupTrack.h
+++ src/hg/inc/dupTrack.h
@@ -1,47 +1,50 @@
 /* Stuff to help handle a track that is a duplicate of a another - sharing data
  * and type, but having it's own cart settings. */
 
 #ifndef DUPTRACK_H
 #define DUPTRACK_H
 
 #define DUP_TRACK_PREFIX       "dup_"
 #define DUP_TRACKS_VAR DUP_TRACK_PREFIX "tracks"
 
 struct dupTrack 
 /* A duplicate track */
     {
     struct dupTrack *next;
     char *name;		/* Usually will look like dup_1_track_name */
     char *source;	/* Will look like track_name */
     struct slPair *tagList;  /* List of tags */
     };
 
 struct dupTrack *dupTrackReadAll(char *fileName);
 /* Read in ra file and return it as a list of dupTracks */
 
 struct trackDb *dupTdbFrom(struct trackDb *sourceTdb, struct dupTrack *dup);
 /* Generate a duplicate trackDb */
 
 struct dupTrack *dupTrackListFromCart(struct cart *cart);
 /* Consult cart for dup track variable and if it's there return
  * list of dupes */
 
 struct dupTrack *dupTrackFindInList(struct dupTrack *list, char *name);
 /* Return matching element in list */
 
 char *dupTrackInCartAndTrash(char *sourceTrack, struct cart *cart, struct trackDb *sourceTdb);
 /* Update cart vars to reflect existance of duplicate of sourceTrack.
  * Also write out or append to dupe track trash file */
 
 void undupTrackInCartAndTrash(char *sourceTrack, struct cart *cart);
 /* Update cart vars to reflect removal of dupTrack.  Also reduce or 
  * remove trash file */
 
 boolean isDupTrack(char *track);
 /* determine if track name refers to a custom track */
 
 char *dupTrackSkipToSourceName(char *dupeTrackName);
 /* If it looks like it's a dupe track then skip over duppy part 
  * in particular skip over dup_N_ form prefix for numerical N. */
 
+boolean dupTrackEnabled();
+/* Return true if we allow tracks to be duped. */
+
 #endif /* DUPTRACK_H */