GEOENCODE / GEODECODE commands removed.

Rationale:

1. The commands look like internals exposed without a real strong use
case.
2. Whatever there is an use case, the client would implement the
commands client side instead of paying RTT just to use a simple to
reimplement library.
3. They add complexity to an otherwise quite straightforward API.

So for now KILLED ;-)

src/geo.c

@@ -42,8 +42,6 @@ int zslValueLteMax(double value, zrangespec *spec);
  *   - geoadd - add coordinates for value to geoset
  *   - georadius - search radius by coordinates in geoset
  *   - georadiusbymember - search radius based on geoset member position
- *   - geoencode - encode coordinates to a geohash integer
- *   - geodecode - decode geohash integer to representative coordinates
  * ==================================================================== */
 
 /* ====================================================================
@@ -580,97 +578,6 @@ void georadiusByMemberCommand(redisClient *c) {
     georadiusGeneric(c, RADIUS_MEMBER);
 }
 
-/* GEODECODE score */
-void geodecodeCommand(redisClient *c) {
-    GeoHashBits geohash;
-    if (getLongLongFromObjectOrReply(c, c->argv[1], (long long *)&geohash.bits,
-                                     NULL) != REDIS_OK)
-        return;
-
-    GeoHashArea area;
-    geohash.step = GEO_STEP_MAX;
-    geohashDecodeWGS84(geohash, &area);
-
-    double lon = (area.longitude.min + area.longitude.max) / 2;
-    double lat = (area.latitude.min + area.latitude.max) / 2;
-
-    /* Returning three nested replies */
-    addReplyMultiBulkLen(c, 3);
-
-    /* First, the minimum corner */
-    addReplyMultiBulkLen(c, 2);
-    addReplyDouble(c, area.longitude.min);
-    addReplyDouble(c, area.latitude.min);
-
-    /* Next, the maximum corner */
-    addReplyMultiBulkLen(c, 2);
-    addReplyDouble(c, area.longitude.max);
-    addReplyDouble(c, area.latitude.max);
-
-    /* Last, the averaged center of this bounding box */
-    addReplyMultiBulkLen(c, 2);
-    addReplyDouble(c, lon);
-    addReplyDouble(c, lat);
-}
-
-/* GEOENCODE long lat [radius unit] */
-void geoencodeCommand(redisClient *c) {
-    double radius_meters = 0;
-    if (c->argc == 5) {
-        if ((radius_meters = extractDistanceOrReply(c, c->argv + 3, NULL)) < 0)
-            return;
-    } else if (c->argc == 4 || c->argc > 5) {
-        addReplyError(c, "syntax error, try: GEOENCODE x y [radius unit]");
-        return;
-    }
-
-    double xy[2];
-    if (extractLongLatOrReply(c, c->argv + 1, xy) == REDIS_ERR) return;
-
-    /* Encode long/lat into our geohash */
-    GeoHashBits geohash;
-    uint8_t step = geohashEstimateStepsByRadius(radius_meters,0);
-    geohashEncodeWGS84(xy[0], xy[1], step, &geohash);
-
-    /* Align the hash to a valid 52-bit integer based on step size */
-    GeoHashFix52Bits bits = geohashAlign52Bits(geohash);
-
-    /* Decode the hash so we can return its bounding box */
-    GeoHashArea area;
-    geohashDecodeWGS84(geohash, &area);
-
-    double lon = (area.longitude.min + area.longitude.max) / 2;
-    double lat = (area.latitude.min + area.latitude.max) / 2;
-
-    /* Return four nested multibulk replies. */
-    addReplyMultiBulkLen(c, 5);
-
-    /* Return the binary geohash we calculated as 52-bit integer */
-    addReplyLongLong(c, bits);
-
-    /* Return the minimum corner */
-    addReplyMultiBulkLen(c, 2);
-    addReplyDouble(c, area.longitude.min);
-    addReplyDouble(c, area.latitude.min);
-
-    /* Return the maximum corner */
-    addReplyMultiBulkLen(c, 2);
-    addReplyDouble(c, area.longitude.max);
-    addReplyDouble(c, area.latitude.max);
-
-    /* Return the averaged center */
-    addReplyMultiBulkLen(c, 2);
-    addReplyDouble(c, lon);
-    addReplyDouble(c, lat);
-
-    /* Return the two scores to query to get the range from the sorted set. */
-    GeoHashFix52Bits min, max;
-    scoresOfGeoHashBox(geohash,&min,&max);
-    addReplyMultiBulkLen(c, 2);
-    addReplyDouble(c, min);
-    addReplyDouble(c, max);
-}
-
 /* GEOHASH key ele1 ele2 ... eleN
  *
  * Returns an array with an 11 characters geohash representation of the

src/redis.c

@@ -285,8 +285,6 @@ struct redisCommand redisCommandTable[] = {
     {"geoadd",geoaddCommand,-5,"wm",0,NULL,1,1,1,0,0},
     {"georadius",georadiusCommand,-6,"r",0,NULL,1,1,1,0,0},
     {"georadiusbymember",georadiusByMemberCommand,-5,"r",0,NULL,1,1,1,0,0},
-    {"geoencode",geoencodeCommand,-3,"r",0,NULL,0,0,0,0,0},
-    {"geodecode",geodecodeCommand,2,"r",0,NULL,0,0,0,0,0},
     {"geohash",geohashCommand,-2,"r",0,NULL,0,0,0,0,0},
     {"geopos",geoposCommand,-2,"r",0,NULL,0,0,0,0,0},
     {"geodist",geodistCommand,-4,"r",0,NULL,0,0,0,0,0},

tests/unit/geo.tcl

@@ -72,19 +72,6 @@ start_server {tags {"geo"}} {
         r georadiusbymember nyc "wtc one" 7 km withdist
     } {{{wtc one} 0.0000} {{union square} 3.2544} {{central park n/q/r} 6.7000} {4545 6.1975} {{lic market} 6.8969}}
 
-    test {GEOENCODE simple} {
-        r geoencode 1.8063239 41.2358883
-    } {3471579339700058 {1.8063229322433472 41.235888125243704}\
-                        {1.806328296661377 41.235890659964866}\
-                        {1.8063256144523621 41.235889392604285}\
-                        {3471579339700058 3471579339700059}}
-
-    test {GEODECODE simple} {
-        r geodecode 3471579339700058
-    } {{1.8063229322433472 41.235888125243704}\
-       {1.806328296661377 41.235890659964866}\
-       {1.8063256144523621 41.235889392604285}}
-
     test {GEOHASH is able to return geohash strings} {
         # Example from Wikipedia.
         r del points